Here are a few small driver fixes for 5.17-rc6 for reported issues. The
majority of these are IIO fixes for small things, and the other two are
a mvmem and mtd core conflict fix.
All of these have been in linux-next with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are a few small driver fixes for 5.17-rc6 for reported issues.
The majority of these are IIO fixes for small things, and the other
two are a mvmem and mtd core conflict fix.
All of these have been in linux-next with no reported issues"
* tag 'char-misc-5.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
mtd: core: Fix a conflict between MTD and NVMEM on wp-gpios property
nvmem: core: Fix a conflict between MTD and NVMEM on wp-gpios property
iio: imu: st_lsm6dsx: wait for settling time in st_lsm6dsx_read_oneshot
iio: Fix error handling for PM
iio: addac: ad74413r: correct comparator gpio getters mask usage
iio: addac: ad74413r: use ngpio size when iterating over mask
iio: addac: ad74413r: Do not reference negative array offsets
iio: adc: men_z188_adc: Fix a resource leak in an error handling path
iio: frequency: admv1013: remove the always true condition
iio: accel: fxls8962af: add padding to regmap for SPI
iio:imu:adis16480: fix buffering for devices with no burst mode
iio: adc: ad7124: fix mask used for setting AIN_BUFP & AIN_BUFM bits
iio: adc: tsc2046: fix memory corruption by preventing array overflow
* Expose KVM_CAP_ENABLE_CAP since it is supported
* Disable KVM_HC_CLOCK_PAIRING in TSC catchup mode
* Ensure async page fault token is nonzero
* Fix lockdep false negative
* Fix FPU migration regression from the AMX changes
x86 guest:
* Don't use PV TLB/IPI/yield on uniprocessor guests
PPC:
* reserve capability id (topic branch for ppc/kvm)
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"x86 host:
- Expose KVM_CAP_ENABLE_CAP since it is supported
- Disable KVM_HC_CLOCK_PAIRING in TSC catchup mode
- Ensure async page fault token is nonzero
- Fix lockdep false negative
- Fix FPU migration regression from the AMX changes
x86 guest:
- Don't use PV TLB/IPI/yield on uniprocessor guests
PPC:
- reserve capability id (topic branch for ppc/kvm)"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: x86: nSVM: disallow userspace setting of MSR_AMD64_TSC_RATIO to non default value when tsc scaling disabled
KVM: x86/mmu: make apf token non-zero to fix bug
KVM: PPC: reserve capability 210 for KVM_CAP_PPC_AIL_MODE_3
x86/kvm: Don't use pv tlb/ipi/sched_yield if on 1 vCPU
x86/kvm: Fix compilation warning in non-x86_64 builds
x86/kvm/fpu: Remove kvm_vcpu_arch.guest_supported_xcr0
x86/kvm/fpu: Limit guest user_xfeatures to supported bits of XCR0
kvm: x86: Disable KVM_HC_CLOCK_PAIRING if tsc is in always catchup mode
KVM: Fix lockdep false negative during host resume
KVM: x86: Add KVM_CAP_ENABLE_CAP to x86
Current release - regressions:
- bpf: fix crash due to out of bounds access into reg2btf_ids
- mvpp2: always set port pcs ops, avoid null-deref
- eth: marvell: fix driver load from initrd
- eth: intel: revert "Fix reset bw limit when DCB enabled with 1 TC"
Current release - new code bugs:
- mptcp: fix race in overlapping signal events
Previous releases - regressions:
- xen-netback: revert hotplug-status changes causing devices to
not be configured
- dsa:
- avoid call to __dev_set_promiscuity() while rtnl_mutex isn't held
- fix panic when removing unoffloaded port from bridge
- dsa: microchip: fix bridging with more than two member ports
Previous releases - always broken:
- bpf:
- fix crash due to incorrect copy_map_value when both spin lock
and timer are present in a single value
- fix a bpf_timer initialization issue with clang
- do not try bpf_msg_push_data with len 0
- add schedule points in batch ops
- nf_tables:
- unregister flowtable hooks on netns exit
- correct flow offload action array size
- fix a couple of memory leaks
- vsock: don't check owner in vhost_vsock_stop() while releasing
- gso: do not skip outer ip header in case of ipip and net_failover
- smc: use a mutex for locking "struct smc_pnettable"
- openvswitch: fix setting ipv6 fields causing hw csum failure
- mptcp: fix race in incoming ADD_ADDR option processing
- sysfs: add check for netdevice being present to speed_show
- sched: act_ct: fix flow table lookup after ct clear or switching
zones
- eth: intel: fixes for SR-IOV forwarding offloads
- eth: broadcom: fixes for selftests and error recovery
- eth: mellanox: flow steering and SR-IOV forwarding fixes
Misc:
- make __pskb_pull_tail() & pskb_carve_frag_list() drop_monitor
friends not report freed skbs as drops
- force inlining of checksum functions in net/checksum.h
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-5.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from bpf and netfilter.
Current release - regressions:
- bpf: fix crash due to out of bounds access into reg2btf_ids
- mvpp2: always set port pcs ops, avoid null-deref
- eth: marvell: fix driver load from initrd
- eth: intel: revert "Fix reset bw limit when DCB enabled with 1 TC"
Current release - new code bugs:
- mptcp: fix race in overlapping signal events
Previous releases - regressions:
- xen-netback: revert hotplug-status changes causing devices to not
be configured
- dsa:
- avoid call to __dev_set_promiscuity() while rtnl_mutex isn't
held
- fix panic when removing unoffloaded port from bridge
- dsa: microchip: fix bridging with more than two member ports
Previous releases - always broken:
- bpf:
- fix crash due to incorrect copy_map_value when both spin lock
and timer are present in a single value
- fix a bpf_timer initialization issue with clang
- do not try bpf_msg_push_data with len 0
- add schedule points in batch ops
- nf_tables:
- unregister flowtable hooks on netns exit
- correct flow offload action array size
- fix a couple of memory leaks
- vsock: don't check owner in vhost_vsock_stop() while releasing
- gso: do not skip outer ip header in case of ipip and net_failover
- smc: use a mutex for locking "struct smc_pnettable"
- openvswitch: fix setting ipv6 fields causing hw csum failure
- mptcp: fix race in incoming ADD_ADDR option processing
- sysfs: add check for netdevice being present to speed_show
- sched: act_ct: fix flow table lookup after ct clear or switching
zones
- eth: intel: fixes for SR-IOV forwarding offloads
- eth: broadcom: fixes for selftests and error recovery
- eth: mellanox: flow steering and SR-IOV forwarding fixes
Misc:
- make __pskb_pull_tail() & pskb_carve_frag_list() drop_monitor
friends not report freed skbs as drops
- force inlining of checksum functions in net/checksum.h"
* tag 'net-5.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (85 commits)
net: mv643xx_eth: process retval from of_get_mac_address
ping: remove pr_err from ping_lookup
Revert "i40e: Fix reset bw limit when DCB enabled with 1 TC"
openvswitch: Fix setting ipv6 fields causing hw csum failure
ipv6: prevent a possible race condition with lifetimes
net/smc: Use a mutex for locking "struct smc_pnettable"
bnx2x: fix driver load from initrd
Revert "xen-netback: Check for hotplug-status existence before watching"
Revert "xen-netback: remove 'hotplug-status' once it has served its purpose"
net/mlx5e: Fix VF min/max rate parameters interchange mistake
net/mlx5e: Add missing increment of count
net/mlx5e: MPLSoUDP decap, fix check for unsupported matches
net/mlx5e: Fix MPLSoUDP encap to use MPLS action information
net/mlx5e: Add feature check for set fec counters
net/mlx5e: TC, Skip redundant ct clear actions
net/mlx5e: TC, Reject rules with forward and drop actions
net/mlx5e: TC, Reject rules with drop and modify hdr action
net/mlx5e: kTLS, Use CHECKSUM_UNNECESSARY for device-offloaded packets
net/mlx5e: Fix wrong return value on ioctl EEPROM query failure
net/mlx5: Fix possible deadlock on rule deletion
...
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Merge tag 'block-5.17-2022-02-24' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
- NVMe pull request:
- send H2CData PDUs based on MAXH2CDATA (Varun Prakash)
- fix passthrough to namespaces with unsupported features (Christoph
Hellwig)
- Clear iocb->private at poll completion (Stefano)
* tag 'block-5.17-2022-02-24' of git://git.kernel.dk/linux-block:
nvme-tcp: send H2CData PDUs based on MAXH2CDATA
nvme: also mark passthrough-only namespaces ready in nvme_update_ns_info
nvme: don't return an error from nvme_configure_metadata
block: clear iocb->private in blkdev_bio_end_io_async()
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Merge tag 'slab-for-5.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab
Pull slab fixes from Vlastimil Babka:
- Build fix (workaround) for clang.
- Fix a /proc/kcore based slabinfo script broken by struct slab changes
in 5.17-rc1.
* tag 'slab-for-5.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab:
tools/cgroup/slabinfo: update to work with struct slab
slab: remove __alloc_size attribute from __kmalloc_track_caller
As per NVMe/TCP specification (revision 1.0a, section 3.6.2.3)
Maximum Host to Controller Data length (MAXH2CDATA): Specifies the
maximum number of PDU-Data bytes per H2CData PDU in bytes. This value
is a multiple of dwords and should be no less than 4,096.
Current code sets H2CData PDU data_length to r2t_length,
it does not check MAXH2CDATA value. Fix this by setting H2CData PDU
data_length to min(req->h2cdata_left, queue->maxh2cdata).
Also validate MAXH2CDATA value returned by target in ICResp PDU,
if it is not a multiple of dword or if it is less than 4096 return
-EINVAL from nvme_tcp_init_connection().
Signed-off-by: Varun Prakash <varun@chelsio.com>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Add KVM_CAP_PPC_AIL_MODE_3 to advertise the capability to set the AIL
resource mode to 3 with the H_SET_MODE hypercall. This capability
differs between processor types and KVM types (PR, HV, Nested HV), and
affects guest-visible behaviour.
QEMU will implement a cap-ail-mode-3 to control this behaviour[1], and
use the KVM CAP if available to determine KVM support[2].
Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Pablo Neira Ayuso says:
====================
Netfilter fixes for net
This is fixing up the use without proper initialization in patch 5/5
-o-
Hi,
The following patchset contains Netfilter fixes for net:
1) Missing #ifdef CONFIG_IP6_NF_IPTABLES in recent xt_socket fix.
2) Fix incorrect flow action array size in nf_tables.
3) Unregister flowtable hooks from netns exit path.
4) Fix missing limit object release, from Florian Westphal.
5) Memleak in nf_tables object update path, also from Florian.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Wp-gpios property can be used on NVMEM nodes and the same property can
be also used on MTD NAND nodes. In case of the wp-gpios property is
defined at NAND level node, the GPIO management is done at NAND driver
level. Write protect is disabled when the driver is probed or resumed
and is enabled when the driver is released or suspended.
When no partitions are defined in the NAND DT node, then the NAND DT node
will be passed to NVMEM framework. If wp-gpios property is defined in
this node, the GPIO resource is taken twice and the NAND controller
driver fails to probe.
It would be possible to set config->wp_gpio at MTD level before calling
nvmem_register function but NVMEM framework will toggle this GPIO on
each write when this GPIO should only be controlled at NAND level driver
to ensure that the Write Protect has not been enabled.
A way to fix this conflict is to add a new boolean flag in nvmem_config
named ignore_wp. In case ignore_wp is set, the GPIO resource will
be managed by the provider.
Fixes: 2a127da461 ("nvmem: add support for the write-protect pin")
Cc: stable@vger.kernel.org
Signed-off-by: Christophe Kerello <christophe.kerello@foss.st.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220220151432.16605-2-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Commit c37495d625 ("slab: add __alloc_size attributes for better
bounds checking") added __alloc_size attributes to a bunch of kmalloc
function prototypes. Unfortunately the change to __kmalloc_track_caller
seems to cause clang to generate broken code and the first time this is
called when booting, the box will crash.
While the compiler problems are being reworked and attempted to be
solved [1], let's just drop the attribute to solve the issue now. Once
it is resolved it can be added back.
[1] https://github.com/ClangBuiltLinux/linux/issues/1599
Fixes: c37495d625 ("slab: add __alloc_size attributes for better bounds checking")
Cc: stable <stable@vger.kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Daniel Micay <danielmicay@gmail.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: linux-mm@kvack.org
Cc: linux-kernel@vger.kernel.org
Cc: llvm@lists.linux.dev
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Nick Desaulniers <ndesaulniers@google.com>
Acked-by: David Rientjes <rientjes@google.com>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
Link: https://lore.kernel.org/r/20220218131358.3032912-1-gregkh@linuxfoundation.org
immediate verdict expression needs to allocate one slot in the flow offload
action array, however, immediate data expression does not need to do so.
fwd and dup expression need to allocate one slot, this is missing.
Add a new offload_action interface to report if this expression needs to
allocate one slot in the flow offload action array.
Fixes: be2861dc36 ("netfilter: nft_{fwd,dup}_netdev: add offload support")
Reported-and-tested-by: Nick Gregory <Nick.Gregory@Sophos.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Where commit 4ef0c5c6b5 ("kernel/sched: Fix sched_fork() access an
invalid sched_task_group") fixed a fork race vs cgroup, it opened up a
race vs syscalls by not placing the task on the runqueue before it
gets exposed through the pidhash.
Commit 13765de814 ("sched/fair: Fix fault in reweight_entity") is
trying to fix a single instance of this, instead fix the whole class
of issues, effectively reverting this commit.
Fixes: 4ef0c5c6b5 ("kernel/sched: Fix sched_fork() access an invalid sched_task_group")
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Tadeusz Struk <tadeusz.struk@linaro.org>
Tested-by: Zhang Qiao <zhangqiao22@huawei.com>
Tested-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Link: https://lkml.kernel.org/r/YgoeCbwj5mbCR0qA@hirez.programming.kicks-ass.net
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Merge tag 'block-5.17-2022-02-17' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
- Surprise removal fix (Christoph)
- Ensure that pages are zeroed before submitted for userspace IO
(Haimin)
- Fix blk-wbt accounting issue with BFQ (Laibin)
- Use bsize for discard granularity in loop (Ming)
- Fix missing zone handling in blk_complete_request() (Pankaj)
* tag 'block-5.17-2022-02-17' of git://git.kernel.dk/linux-block:
block/wbt: fix negative inflight counter when remove scsi device
block: fix surprise removal for drivers calling blk_set_queue_dying
block-map: add __GFP_ZERO flag for alloc_page in function bio_copy_kern
block: loop:use kstatfs.f_bsize of backing file to set discard granularity
block: Add handling for zone append command in blk_complete_request
UDP sendmsg() can be lockless, this is causing all kinds
of data races.
This patch converts sk->sk_tskey to remove one of these races.
BUG: KCSAN: data-race in __ip_append_data / __ip_append_data
read to 0xffff8881035d4b6c of 4 bytes by task 8877 on cpu 1:
__ip_append_data+0x1c1/0x1de0 net/ipv4/ip_output.c:994
ip_make_skb+0x13f/0x2d0 net/ipv4/ip_output.c:1636
udp_sendmsg+0x12bd/0x14c0 net/ipv4/udp.c:1249
inet_sendmsg+0x5f/0x80 net/ipv4/af_inet.c:819
sock_sendmsg_nosec net/socket.c:705 [inline]
sock_sendmsg net/socket.c:725 [inline]
____sys_sendmsg+0x39a/0x510 net/socket.c:2413
___sys_sendmsg net/socket.c:2467 [inline]
__sys_sendmmsg+0x267/0x4c0 net/socket.c:2553
__do_sys_sendmmsg net/socket.c:2582 [inline]
__se_sys_sendmmsg net/socket.c:2579 [inline]
__x64_sys_sendmmsg+0x53/0x60 net/socket.c:2579
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
write to 0xffff8881035d4b6c of 4 bytes by task 8880 on cpu 0:
__ip_append_data+0x1d8/0x1de0 net/ipv4/ip_output.c:994
ip_make_skb+0x13f/0x2d0 net/ipv4/ip_output.c:1636
udp_sendmsg+0x12bd/0x14c0 net/ipv4/udp.c:1249
inet_sendmsg+0x5f/0x80 net/ipv4/af_inet.c:819
sock_sendmsg_nosec net/socket.c:705 [inline]
sock_sendmsg net/socket.c:725 [inline]
____sys_sendmsg+0x39a/0x510 net/socket.c:2413
___sys_sendmsg net/socket.c:2467 [inline]
__sys_sendmmsg+0x267/0x4c0 net/socket.c:2553
__do_sys_sendmmsg net/socket.c:2582 [inline]
__se_sys_sendmmsg net/socket.c:2579 [inline]
__x64_sys_sendmmsg+0x53/0x60 net/socket.c:2579
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
value changed: 0x0000054d -> 0x0000054e
Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 8880 Comm: syz-executor.5 Not tainted 5.17.0-rc2-syzkaller-00167-gdcb85f85fa6f-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Fixes: 09c2d251b7 ("net-timestamp: add key to disambiguate concurrent datagrams")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Alexei Starovoitov says:
====================
pull-request: bpf 2022-02-17
We've added 8 non-merge commits during the last 7 day(s) which contain
a total of 8 files changed, 119 insertions(+), 15 deletions(-).
The main changes are:
1) Add schedule points in map batch ops, from Eric.
2) Fix bpf_msg_push_data with len 0, from Felix.
3) Fix crash due to incorrect copy_map_value, from Kumar.
4) Fix crash due to out of bounds access into reg2btf_ids, from Kumar.
5) Fix a bpf_timer initialization issue with clang, from Yonghong.
* https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
bpf: Add schedule points in batch ops
bpf: Fix crash due to out of bounds access into reg2btf_ids.
selftests: bpf: Check bpf_msg_push_data return value
bpf: Fix a bpf_timer initialization issue
bpf: Emit bpf_timer in vmlinux BTF
selftests/bpf: Add test for bpf_timer overwriting crash
bpf: Fix crash due to incorrect copy_map_value
bpf: Do not try bpf_msg_push_data with len 0
====================
Link: https://lore.kernel.org/r/20220217190000.37925-1-alexei.starovoitov@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
netfilter.
Current release - regressions:
- dsa: lantiq_gswip: fix use after free in gswip_remove()
- smc: avoid overwriting the copies of clcsock callback functions
Current release - new code bugs:
- iwlwifi:
- fix use-after-free when no FW is present
- mei: fix the pskb_may_pull check in ipv4
- mei: retry mapping the shared area
- mvm: don't feed the hardware RFKILL into iwlmei
Previous releases - regressions:
- ipv6: mcast: use rcu-safe version of ipv6_get_lladdr()
- tipc: fix wrong publisher node address in link publications
- iwlwifi: mvm: don't send SAR GEO command for 3160 devices,
avoid FW assertion
- bgmac: make idm and nicpm resource optional again
- atl1c: fix tx timeout after link flap
Previous releases - always broken:
- vsock: remove vsock from connected table when connect is
interrupted by a signal
- ping: change destination interface checks to match raw sockets
- crypto: af_alg - get rid of alg_memory_allocated to avoid confusing
semantics (and null-deref) after SO_RESERVE_MEM was added
- ipv6: make exclusive flowlabel checks per-netns
- bonding: force carrier update when releasing slave
- sched: limit TC_ACT_REPEAT loops
- bridge: multicast: notify switchdev driver whenever MC processing
gets disabled because of max entries reached
- wifi: brcmfmac: fix crash in brcm_alt_fw_path when WLAN not found
- iwlwifi: fix locking when "HW not ready"
- phy: mediatek: remove PHY mode check on MT7531
- dsa: mv88e6xxx: flush switchdev FDB workqueue before removing VLAN
- dsa: lan9303:
- fix polarity of reset during probe
- fix accelerated VLAN handling
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-5.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from wireless and netfilter.
Current release - regressions:
- dsa: lantiq_gswip: fix use after free in gswip_remove()
- smc: avoid overwriting the copies of clcsock callback functions
Current release - new code bugs:
- iwlwifi:
- fix use-after-free when no FW is present
- mei: fix the pskb_may_pull check in ipv4
- mei: retry mapping the shared area
- mvm: don't feed the hardware RFKILL into iwlmei
Previous releases - regressions:
- ipv6: mcast: use rcu-safe version of ipv6_get_lladdr()
- tipc: fix wrong publisher node address in link publications
- iwlwifi: mvm: don't send SAR GEO command for 3160 devices, avoid FW
assertion
- bgmac: make idm and nicpm resource optional again
- atl1c: fix tx timeout after link flap
Previous releases - always broken:
- vsock: remove vsock from connected table when connect is
interrupted by a signal
- ping: change destination interface checks to match raw sockets
- crypto: af_alg - get rid of alg_memory_allocated to avoid confusing
semantics (and null-deref) after SO_RESERVE_MEM was added
- ipv6: make exclusive flowlabel checks per-netns
- bonding: force carrier update when releasing slave
- sched: limit TC_ACT_REPEAT loops
- bridge: multicast: notify switchdev driver whenever MC processing
gets disabled because of max entries reached
- wifi: brcmfmac: fix crash in brcm_alt_fw_path when WLAN not found
- iwlwifi: fix locking when "HW not ready"
- phy: mediatek: remove PHY mode check on MT7531
- dsa: mv88e6xxx: flush switchdev FDB workqueue before removing VLAN
- dsa: lan9303:
- fix polarity of reset during probe
- fix accelerated VLAN handling"
* tag 'net-5.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (65 commits)
bonding: force carrier update when releasing slave
nfp: flower: netdev offload check for ip6gretap
ipv6: fix data-race in fib6_info_hw_flags_set / fib6_purge_rt
ipv4: fix data races in fib_alias_hw_flags_set
net: dsa: lan9303: add VLAN IDs to master device
net: dsa: lan9303: handle hwaccel VLAN tags
vsock: remove vsock from connected table when connect is interrupted by a signal
Revert "net: ethernet: bgmac: Use devm_platform_ioremap_resource_byname"
ping: fix the dif and sdif check in ping_lookup
net: usb: cdc_mbim: avoid altsetting toggling for Telit FN990
net: sched: limit TC_ACT_REPEAT loops
tipc: fix wrong notification node addresses
net: dsa: lantiq_gswip: fix use after free in gswip_remove()
ipv6: per-netns exclusive flowlabel checks
net: bridge: multicast: notify switchdev driver whenever MC processing gets disabled
CDC-NCM: avoid overflow in sanity checking
mctp: fix use after free
net: mscc: ocelot: fix use-after-free in ocelot_vlan_del()
bonding: fix data-races around agg_select_timer
dpaa2-eth: Initialize mutex used in one step timestamping path
...
Various block drivers call blk_set_queue_dying to mark a disk as dead due
to surprise removal events, but since commit 8e141f9eb8 that doesn't
work given that the GD_DEAD flag needs to be set to stop I/O.
Replace the driver calls to blk_set_queue_dying with a new (and properly
documented) blk_mark_disk_dead API, and fold blk_set_queue_dying into the
only remaining caller.
Fixes: 8e141f9eb8 ("block: drain file system I/O on del_gendisk")
Reported-by: Markus Blöchl <markus.bloechl@ipetronik.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Link: https://lore.kernel.org/r/20220217075231.1140-1-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Ipv6 flowlabels historically require a reservation before use.
Optionally in exclusive mode (e.g., user-private).
Commit 59c820b231 ("ipv6: elide flowlabel check if no exclusive
leases exist") introduced a fastpath that avoids this check when no
exclusive leases exist in the system, and thus any flowlabel use
will be granted.
That allows skipping the control operation to reserve a flowlabel
entirely. Though with a warning if the fast path fails:
This is an optimization. Robust applications still have to revert to
requesting leases if the fast path fails due to an exclusive lease.
Still, this is subtle. Better isolate network namespaces from each
other. Flowlabels are per-netns. Also record per-netns whether
exclusive leases are in use. Then behavior does not change based on
activity in other netns.
Changes
v2
- wrap in IS_ENABLED(CONFIG_IPV6) to avoid breakage if disabled
Fixes: 59c820b231 ("ipv6: elide flowlabel check if no exclusive leases exist")
Link: https://lore.kernel.org/netdev/MWHPR2201MB1072BCCCFCE779E4094837ACD0329@MWHPR2201MB1072.namprd22.prod.outlook.com/
Reported-by: Congyu Liu <liu3101@purdue.edu>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Tested-by: Congyu Liu <liu3101@purdue.edu>
Link: https://lore.kernel.org/r/20220215160037.1976072-1-willemdebruijn.kernel@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'hyperv-fixes-signed-20220215' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux
Pull hyperv fixes from Wei Liu:
- Rework use of DMA_BIT_MASK in vmbus to work around a clang bug
(Michael Kelley)
- Fix NUMA topology (Long Li)
- Fix a memory leak in vmbus (Miaoqian Lin)
- One minor clean-up patch (Cai Huoqing)
* tag 'hyperv-fixes-signed-20220215' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
Drivers: hv: utils: Make use of the helper macro LIST_HEAD()
Drivers: hv: vmbus: Rework use of DMA_BIT_MASK(64)
Drivers: hv: vmbus: Fix memory leak in vmbus_add_channel_kobj
PCI: hv: Fix NUMA node assignment when kernel boots with custom NUMA topology
mv88e6xxx is special among DSA drivers in that it requires the VTU to
contain the VID of the FDB entry it modifies in
mv88e6xxx_port_db_load_purge(), otherwise it will return -EOPNOTSUPP.
Sometimes due to races this is not always satisfied even if external
code does everything right (first deletes the FDB entries, then the
VLAN), because DSA commits to hardware FDB entries asynchronously since
commit c9eb3e0f87 ("net: dsa: Add support for learning FDB through
notification").
Therefore, the mv88e6xxx driver must close this race condition by
itself, by asking DSA to flush the switchdev workqueue of any FDB
deletions in progress, prior to exiting a VLAN.
Fixes: c9eb3e0f87 ("net: dsa: Add support for learning FDB through notification")
Reported-by: Rafael Richter <rafael.richter@gin.de>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'objtool_urgent_for_v5.17_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool fix from Borislav Petkov:
"Fix a case where objtool would mistakenly warn about instructions
being unreachable"
* tag 'objtool_urgent_for_v5.17_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/bug: Merge annotate_reachable() into _BUG_FLAGS() asm
Merge misc fixes from Andrew Morton:
"5 patches.
Subsystems affected by this patch series: binfmt, procfs, and mm
(vmscan, memcg, and kfence)"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
kfence: make test case compatible with run time set sample interval
mm: memcg: synchronize objcg lists with a dedicated spinlock
mm: vmscan: remove deadlock due to throttling failing to make progress
fs/proc: task_mmu.c: don't read mapcount for migration entry
fs/binfmt_elf: fix PT_LOAD p_align values for loaders
The parameter kfence_sample_interval can be set via boot parameter and
late shell command, which is convenient for automated tests and KFENCE
parameter optimization. However, KFENCE test case just uses
compile-time CONFIG_KFENCE_SAMPLE_INTERVAL, which will make KFENCE test
case not run as users desired. Export kfence_sample_interval, so that
KFENCE test case can use run-time-set sample interval.
Link: https://lkml.kernel.org/r/20220207034432.185532-1-liupeng256@huawei.com
Signed-off-by: Peng Liu <liupeng256@huawei.com>
Reviewed-by: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Christian Knig <christian.koenig@amd.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Alexander reported a circular lock dependency revealed by the mmap1 ltp
test:
LOCKDEP_CIRCULAR (suite: ltp, case: mtest06 (mmap1))
WARNING: possible circular locking dependency detected
5.17.0-20220113.rc0.git0.f2211f194038.300.fc35.s390x+debug #1 Not tainted
------------------------------------------------------
mmap1/202299 is trying to acquire lock:
00000001892c0188 (css_set_lock){..-.}-{2:2}, at: obj_cgroup_release+0x4a/0xe0
but task is already holding lock:
00000000ca3b3818 (&sighand->siglock){-.-.}-{2:2}, at: force_sig_info_to_task+0x38/0x180
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #1 (&sighand->siglock){-.-.}-{2:2}:
__lock_acquire+0x604/0xbd8
lock_acquire.part.0+0xe2/0x238
lock_acquire+0xb0/0x200
_raw_spin_lock_irqsave+0x6a/0xd8
__lock_task_sighand+0x90/0x190
cgroup_freeze_task+0x2e/0x90
cgroup_migrate_execute+0x11c/0x608
cgroup_update_dfl_csses+0x246/0x270
cgroup_subtree_control_write+0x238/0x518
kernfs_fop_write_iter+0x13e/0x1e0
new_sync_write+0x100/0x190
vfs_write+0x22c/0x2d8
ksys_write+0x6c/0xf8
__do_syscall+0x1da/0x208
system_call+0x82/0xb0
-> #0 (css_set_lock){..-.}-{2:2}:
check_prev_add+0xe0/0xed8
validate_chain+0x736/0xb20
__lock_acquire+0x604/0xbd8
lock_acquire.part.0+0xe2/0x238
lock_acquire+0xb0/0x200
_raw_spin_lock_irqsave+0x6a/0xd8
obj_cgroup_release+0x4a/0xe0
percpu_ref_put_many.constprop.0+0x150/0x168
drain_obj_stock+0x94/0xe8
refill_obj_stock+0x94/0x278
obj_cgroup_charge+0x164/0x1d8
kmem_cache_alloc+0xac/0x528
__sigqueue_alloc+0x150/0x308
__send_signal+0x260/0x550
send_signal+0x7e/0x348
force_sig_info_to_task+0x104/0x180
force_sig_fault+0x48/0x58
__do_pgm_check+0x120/0x1f0
pgm_check_handler+0x11e/0x180
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&sighand->siglock);
lock(css_set_lock);
lock(&sighand->siglock);
lock(css_set_lock);
*** DEADLOCK ***
2 locks held by mmap1/202299:
#0: 00000000ca3b3818 (&sighand->siglock){-.-.}-{2:2}, at: force_sig_info_to_task+0x38/0x180
#1: 00000001892ad560 (rcu_read_lock){....}-{1:2}, at: percpu_ref_put_many.constprop.0+0x0/0x168
stack backtrace:
CPU: 15 PID: 202299 Comm: mmap1 Not tainted 5.17.0-20220113.rc0.git0.f2211f194038.300.fc35.s390x+debug #1
Hardware name: IBM 3906 M04 704 (LPAR)
Call Trace:
dump_stack_lvl+0x76/0x98
check_noncircular+0x136/0x158
check_prev_add+0xe0/0xed8
validate_chain+0x736/0xb20
__lock_acquire+0x604/0xbd8
lock_acquire.part.0+0xe2/0x238
lock_acquire+0xb0/0x200
_raw_spin_lock_irqsave+0x6a/0xd8
obj_cgroup_release+0x4a/0xe0
percpu_ref_put_many.constprop.0+0x150/0x168
drain_obj_stock+0x94/0xe8
refill_obj_stock+0x94/0x278
obj_cgroup_charge+0x164/0x1d8
kmem_cache_alloc+0xac/0x528
__sigqueue_alloc+0x150/0x308
__send_signal+0x260/0x550
send_signal+0x7e/0x348
force_sig_info_to_task+0x104/0x180
force_sig_fault+0x48/0x58
__do_pgm_check+0x120/0x1f0
pgm_check_handler+0x11e/0x180
INFO: lockdep is turned off.
In this example a slab allocation from __send_signal() caused a
refilling and draining of a percpu objcg stock, resulted in a releasing
of another non-related objcg. Objcg release path requires taking the
css_set_lock, which is used to synchronize objcg lists.
This can create a circular dependency with the sighandler lock, which is
taken with the locked css_set_lock by the freezer code (to freeze a
task).
In general it seems that using css_set_lock to synchronize objcg lists
makes any slab allocations and deallocation with the locked css_set_lock
and any intervened locks risky.
To fix the problem and make the code more robust let's stop using
css_set_lock to synchronize objcg lists and use a new dedicated spinlock
instead.
Link: https://lkml.kernel.org/r/Yfm1IHmoGdyUR81T@carbon.dhcp.thefacebook.com
Fixes: bf4f059954 ("mm: memcg/slab: obj_cgroup API")
Signed-off-by: Roman Gushchin <guro@fb.com>
Reported-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Tested-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Reviewed-by: Waiman Long <longman@redhat.com>
Acked-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Reviewed-by: Jeremy Linton <jeremy.linton@arm.com>
Tested-by: Jeremy Linton <jeremy.linton@arm.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This is a fairly large set of bugfixes, most of which had
been sent a while ago but only now made it into the soc tree:
Maintainer file updates:
- Claudiu Beznea now co-maintains the at91 soc family,
replacing Ludovic Desroches.
- Michael Walle maintains the sl28cpld drivers
- Alain Volmat and Raphael Gallais-Pou take over some
drivers for ST platforms
- Alim Akhtar is an additional reviewer for Samsung platforms
Code fixes:
- Op-tee had a problem with object lifetime that needs
a slightly complex fix, as well as another bug with
error handling.
- Several minor issues for the OMAP platform, including
a regression with the timer
- A Kconfig change to fix a build-time issue on Intel
SoCFPGA
Device tree fixes:
- The Amlogic Meson platform fixes a boot regression on
am1-odroid, a spurious interrupt, and a problem with
reserved memory regions
- In the i.MX platform, several bug fixes are needed to
make devices work correctly: SD card detection,
alarmtimer, and sound card on some board. One patch
for the GPU got in there by accident and gets reverted
again.
- TI K3 needs a fix for J721S2 serial port numbers
- ux500 needs a fix to mount the SD card as root on
the Skomer phone.
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Merge tag 'soc-fixes-5.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Arnd Bergmann:
"This is a fairly large set of bugfixes, most of which had been sent a
while ago but only now made it into the soc tree:
Maintainer file updates:
- Claudiu Beznea now co-maintains the at91 soc family, replacing
Ludovic Desroches.
- Michael Walle maintains the sl28cpld drivers
- Alain Volmat and Raphael Gallais-Pou take over some drivers for ST
platforms
- Alim Akhtar is an additional reviewer for Samsung platforms
Code fixes:
- Op-tee had a problem with object lifetime that needs a slightly
complex fix, as well as another bug with error handling.
- Several minor issues for the OMAP platform, including a regression
with the timer
- A Kconfig change to fix a build-time issue on Intel SoCFPGA
Device tree fixes:
- The Amlogic Meson platform fixes a boot regression on am1-odroid, a
spurious interrupt, and a problem with reserved memory regions
- In the i.MX platform, several bug fixes are needed to make devices
work correctly: SD card detection, alarmtimer, and sound card on
some board. One patch for the GPU got in there by accident and gets
reverted again.
- TI K3 needs a fix for J721S2 serial port numbers
- ux500 needs a fix to mount the SD card as root on the Skomer phone"
* tag 'soc-fixes-5.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (46 commits)
Revert "arm64: dts: imx8mn-venice-gw7902: disable gpu"
arm64: Remove ARCH_VULCAN
MAINTAINERS: add myself as a maintainer for the sl28cpld
MAINTAINERS: add IRC to ARM sub-architectures and Devicetree
MAINTAINERS: arm: samsung: add Git tree and IRC
ARM: dts: Fix boot regression on Skomer
ARM: dts: spear320: Drop unused and undocumented 'irq-over-gpio' property
soc: aspeed: lpc-ctrl: Block error printing on probe defer cases
docs/ABI: testing: aspeed-uart-routing: Escape asterisk
MAINTAINERS: update drm/stm drm/sti and cec/sti maintainers
MAINTAINERS: Update Benjamin Gaignard maintainer status
ARM: socfpga: fix missing RESET_CONTROLLER
arm64: dts: meson-sm1-odroid: fix boot loop after reboot
arm64: dts: meson-g12: drop BL32 region from SEI510/SEI610
arm64: dts: meson-g12: add ATF BL32 reserved-memory region
arm64: dts: meson-gx: add ATF BL32 reserved-memory region
arm64: dts: meson-sm1-bananapi-m5: fix wrong GPIO domain for GPIOE_2
arm64: dts: meson-sm1-odroid: use correct enable-gpio pin for tf-io regulator
arm64: dts: meson-g12b-odroid-n2: fix typo 'dio2133'
optee: use driver internal tee_context for some rpc
...
- Revert a recent change that attempted to avoid issues with
conflicting address ranges during PCI initialization, because it
turned out to introduce a regression (Hans de Goede).
- Revert a change that limited EC GPE wakeups from suspend-to-idle
to systems based on Intel hardware, because it turned out that
systems based on hardware from other vendors depended on that
functionality too (Mario Limonciello).
- Fix two issues related to the handling of wakeup interrupts and
wakeup events signaled through the EC GPE during suspend-to-idle
on x86 (Rafael Wysocki).
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Merge tag 'acpi-5.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"These revert two commits that turned out to be problematic and fix two
issues related to wakeup from suspend-to-idle on x86.
Specifics:
- Revert a recent change that attempted to avoid issues with
conflicting address ranges during PCI initialization, because it
turned out to introduce a regression (Hans de Goede).
- Revert a change that limited EC GPE wakeups from suspend-to-idle to
systems based on Intel hardware, because it turned out that systems
based on hardware from other vendors depended on that functionality
too (Mario Limonciello).
- Fix two issues related to the handling of wakeup interrupts and
wakeup events signaled through the EC GPE during suspend-to-idle on
x86 (Rafael Wysocki)"
* tag 'acpi-5.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
x86/PCI: revert "Ignore E820 reservations for bridge windows on newer systems"
PM: s2idle: ACPI: Fix wakeup interrupts handling
ACPI: PM: s2idle: Cancel wakeup before dispatching EC GPE
ACPI: PM: Revert "Only mark EC GPE for wakeup on Intel systems"
Current release - new code bugs:
- sparx5: fix get_stat64 out-of-bound access and crash
- smc: fix netdev ref tracker misuse
Previous releases - regressions:
- eth: ixgbevf: require large buffers for build_skb on 82599VF,
avoid overflows
- eth: ocelot: fix all IP traffic getting trapped to CPU with PTP
over IP
- bonding: fix rare link activation misses in 802.3ad mode
Previous releases - always broken:
- tcp: fix tcp sock mem accounting in zero-copy corner cases
- remove the cached dst when uncloning an skb dst and its metadata,
since we only have one ref it'd lead to an UaF
- netfilter:
- conntrack: don't refresh sctp entries in closed state
- conntrack: re-init state for retransmitted syn-ack, avoid
connection establishment getting stuck with strange stacks
- ctnetlink: disable helper autoassign, avoid it getting lost
- nft_payload: don't allow transport header access for fragments
- dsa: fix use of devres for mdio throughout drivers
- eth: amd-xgbe: disable interrupts during pci removal
- eth: dpaa2-eth: unregister netdev before disconnecting the PHY
- eth: ice: fix IPIP and SIT TSO offload
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-5.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from netfilter and can.
Current release - new code bugs:
- sparx5: fix get_stat64 out-of-bound access and crash
- smc: fix netdev ref tracker misuse
Previous releases - regressions:
- eth: ixgbevf: require large buffers for build_skb on 82599VF, avoid
overflows
- eth: ocelot: fix all IP traffic getting trapped to CPU with PTP
over IP
- bonding: fix rare link activation misses in 802.3ad mode
Previous releases - always broken:
- tcp: fix tcp sock mem accounting in zero-copy corner cases
- remove the cached dst when uncloning an skb dst and its metadata,
since we only have one ref it'd lead to an UaF
- netfilter:
- conntrack: don't refresh sctp entries in closed state
- conntrack: re-init state for retransmitted syn-ack, avoid
connection establishment getting stuck with strange stacks
- ctnetlink: disable helper autoassign, avoid it getting lost
- nft_payload: don't allow transport header access for fragments
- dsa: fix use of devres for mdio throughout drivers
- eth: amd-xgbe: disable interrupts during pci removal
- eth: dpaa2-eth: unregister netdev before disconnecting the PHY
- eth: ice: fix IPIP and SIT TSO offload"
* tag 'net-5.17-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (53 commits)
net: dsa: mv88e6xxx: fix use-after-free in mv88e6xxx_mdios_unregister
net: mscc: ocelot: fix mutex lock error during ethtool stats read
ice: Avoid RTNL lock when re-creating auxiliary device
ice: Fix KASAN error in LAG NETDEV_UNREGISTER handler
ice: fix IPIP and SIT TSO offload
ice: fix an error code in ice_cfg_phy_fec()
net: mpls: Fix GCC 12 warning
dpaa2-eth: unregister the netdev before disconnecting from the PHY
skbuff: cleanup double word in comment
net: macb: Align the dma and coherent dma masks
mptcp: netlink: process IPv6 addrs in creating listening sockets
selftests: mptcp: add missing join check
net: usb: qmi_wwan: Add support for Dell DW5829e
vlan: move dev_put into vlan_dev_uninit
vlan: introduce vlan_dev_free_egress_priority
ax25: fix UAF bugs of net_device caused by rebinding operation
net: dsa: fix panic when DSA master device unbinds on shutdown
net: amd-xgbe: disable interrupts during pci removal
tipc: rate limit warning for received illegal binding update
net: mdio: aspeed: Add missing MODULE_DEVICE_TABLE
...
Ensure that NFS clients cannot send file size or offset values that
can cause the NFS server to crash or to return incorrect or
surprising results. In particular, fix how the NFS server handles
values larger than OFFSET_MAX.
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Merge tag 'nfsd-5.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux
Pull more nfsd fixes from Chuck Lever:
"Ensure that NFS clients cannot send file size or offset values that
can cause the NFS server to crash or to return incorrect or surprising
results.
In particular, fix how the NFS server handles values larger than
OFFSET_MAX"
* tag 'nfsd-5.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
NFSD: Deprecate NFS_OFFSET_MAX
NFSD: Fix offset type in I/O trace points
NFSD: COMMIT operations must not return NFS?ERR_INVAL
NFSD: Clamp WRITE offsets
NFSD: Fix NFSv3 SETATTR/CREATE's handling of large file sizes
NFSD: Fix ia_size underflow
NFSD: Fix the behavior of READ near OFFSET_MAX
NFS_OFFSET_MAX was introduced way back in Linux v2.3.y before there
was a kernel-wide OFFSET_MAX value. As a clean up, replace the last
few uses of it with its generic equivalent, and get rid of it.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
When uncloning an skb dst and its associated metadata, a new
dst+metadata is allocated and later replaces the old one in the skb.
This is helpful to have a non-shared dst+metadata attached to a specific
skb.
The issue is the uncloned dst+metadata is initialized with a refcount of
1, which is increased to 2 before attaching it to the skb. When
tun_dst_unclone returns, the dst+metadata is only referenced from a
single place (the skb) while its refcount is 2. Its refcount will never
drop to 0 (when the skb is consumed), leading to a memory leak.
Fix this by removing the call to dst_hold in tun_dst_unclone, as the
dst+metadata refcount is already 1.
Fixes: fc4099f172 ("openvswitch: Fix egress tunnel info.")
Cc: Pravin B Shelar <pshelar@ovn.org>
Reported-by: Vlad Buslov <vladbu@nvidia.com>
Tested-by: Vlad Buslov <vladbu@nvidia.com>
Signed-off-by: Antoine Tenart <atenart@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
When uncloning an skb dst and its associated metadata a new dst+metadata
is allocated and the tunnel information from the old metadata is copied
over there.
The issue is the tunnel metadata has references to cached dst, which are
copied along the way. When a dst+metadata refcount drops to 0 the
metadata is freed including the cached dst entries. As they are also
referenced in the initial dst+metadata, this ends up in UaFs.
In practice the above did not happen because of another issue, the
dst+metadata was never freed because its refcount never dropped to 0
(this will be fixed in a subsequent patch).
Fix this by initializing the dst cache after copying the tunnel
information from the old metadata to also unshare the dst cache.
Fixes: d71785ffc7 ("net: add dst_cache to ovs vxlan lwtunnel")
Cc: Paolo Abeni <pabeni@redhat.com>
Reported-by: Vlad Buslov <vladbu@nvidia.com>
Tested-by: Vlad Buslov <vladbu@nvidia.com>
Signed-off-by: Antoine Tenart <atenart@kernel.org>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
After commit e3728b50cd ("ACPI: PM: s2idle: Avoid possible race
related to the EC GPE") wakeup interrupts occurring immediately after
the one discarded by acpi_s2idle_wake() may be missed. Moreover, if
the SCI triggers again immediately after the rearming in
acpi_s2idle_wake(), that wakeup may be missed too.
The problem is that pm_system_irq_wakeup() only calls pm_system_wakeup()
when pm_wakeup_irq is 0, but that's not the case any more after the
interrupt causing acpi_s2idle_wake() to run until pm_wakeup_irq is
cleared by the pm_wakeup_clear() call in s2idle_loop(). However,
there may be wakeup interrupts occurring in that time frame and if
that happens, they will be missed.
To address that issue first move the clearing of pm_wakeup_irq to
the point at which it is known that the interrupt causing
acpi_s2idle_wake() to tun will be discarded, before rearming the SCI
for wakeup. Moreover, because that only reduces the size of the
time window in which the issue may manifest itself, allow
pm_system_irq_wakeup() to register two second wakeup interrupts in
a row and, when discarding the first one, replace it with the second
one. [Of course, this assumes that only one wakeup interrupt can be
discarded in one go, but currently that is the case and I am not
aware of any plans to change that.]
Fixes: e3728b50cd ("ACPI: PM: s2idle: Avoid possible race related to the EC GPE")
Cc: 5.4+ <stable@vger.kernel.org> # 5.4+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Using DMA_BIT_MASK(64) as an initializer for a global variable
causes problems with Clang 12.0.1. The compiler doesn't understand
that value 64 is excluded from the shift at compile time, resulting
in a build error.
While this is a compiler problem, avoid the issue by setting up
the dma_mask memory as part of struct hv_device, and initialize
it using dma_set_mask().
Reported-by: Nathan Chancellor <nathan@kernel.org>
Reported-by: Vitaly Chikunov <vt@altlinux.org>
Reported-by: Jakub Kicinski <kuba@kernel.org>
Fixes: 743b237c3a ("scsi: storvsc: Add Isolation VM support for storvsc driver")
Signed-off-by: Michael Kelley <mikelley@microsoft.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/1644176216-12531-1-git-send-email-mikelley@microsoft.com
Signed-off-by: Wei Liu <wei.liu@kernel.org>
A series of fixes for omap variants for minor issues, and a fix for a timer
regression for some omap3 beagleboard versions.
The timer fix needs to patch both the dts and the timer code because
otherwise the timer quirk handling for old dtbs will prevent the dts fix
from working.
The other changes are for issues found by automated analysis, a macasp
typo fix, and two cosmetic fixes for clocks.
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Merge tag 'omap-for-v5.17/fixes-for-merge-window-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/fixes
Fixes for omaps
A series of fixes for omap variants for minor issues, and a fix for a timer
regression for some omap3 beagleboard versions.
The timer fix needs to patch both the dts and the timer code because
otherwise the timer quirk handling for old dtbs will prevent the dts fix
from working.
The other changes are for issues found by automated analysis, a macasp
typo fix, and two cosmetic fixes for clocks.
* tag 'omap-for-v5.17/fixes-for-merge-window-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: dts: Don't use legacy clock defines for dra7 clkctrl
clk: ti: Move dra7 clock devices out of the legacy section
ARM: dts: Fix timer regression for beagleboard revision c
ARM: dts: am335x-wega: Fix typo in mcasp property rx-num-evt
ARM: OMAP2+: adjust the location of put_device() call in omapdss_init_of
ARM: OMAP2+: hwmod: Add of_node_put() before break
Link: https://lore.kernel.org/r/pull-1641801310-149268@atomide.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The concurrent positioning ranges log page 47h is a general purpose log
page and not a subpage of the indentify device log. Using
ata_identify_page_supported() to test for concurrent positioning ranges
support is thus wrong. ata_log_supported() must be used.
Furthermore, unlike other advanced ATA features (e.g. NCQ priority),
accesses to the concurrent positioning ranges log page are not gated by
a feature bit from the device IDENTIFY data. Since many older drives
react badly to the READ LOG EXT and/or READ LOG DMA EXT commands isued
to read device log pages, avoid problems with older drives by limiting
the concurrent positioning ranges support detection to drives
implementing at least the ACS-4 ATA standard (major version 11). This
additional condition effectively turns ata_dev_config_cpr() into a nop
for older drives, avoiding problems in the field.
Fixes: fe22e1c2f7 ("libata: support concurrent positioning ranges log")
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=215519
Cc: stable@vger.kernel.org
Reviewed-by: Hannes Reinecke <hare@suse.de>
Tested-by: Abderraouf Adjal <adjal.arf@gmail.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
fix regression introduced as part of moving to the new mount API.
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Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 fixes from Ted Ts'o:
"Various bug fixes for ext4 fast commit and inline data handling.
Also fix regression introduced as part of moving to the new mount API"
* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
fs/ext4: fix comments mentioning i_mutex
ext4: fix incorrect type issue during replay_del_range
jbd2: fix kernel-doc descriptions for jbd2_journal_shrink_{scan,count}()
ext4: fix potential NULL pointer dereference in ext4_fill_super()
jbd2: refactor wait logic for transaction updates into a common function
jbd2: cleanup unused functions declarations from jbd2.h
ext4: fix error handling in ext4_fc_record_modified_inode()
ext4: remove redundant max inline_size check in ext4_da_write_inline_data_begin()
ext4: fix error handling in ext4_restore_inline_data()
ext4: fast commit may miss file actions
ext4: fast commit may not fallback for ineligible commit
ext4: modify the logic of ext4_mb_new_blocks_simple
ext4: prevent used blocks from being allocated during fast commit replay
- Intel/PT: filters could crash the kernel
- Intel: default disable the PMU for SMM, some new-ish EFI firmware has
started using CPL3 and the PMU CPL filters don't discriminate against
SMM, meaning that CPL3 (userspace only) events now also count EFI/SMM
cycles.
- Fixup for perf_event_attr::sig_data
(Peter Zijlstra)
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Merge tag 'perf_urgent_for_v5.17_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Borislav Petkov:
- Intel/PT: filters could crash the kernel
- Intel: default disable the PMU for SMM, some new-ish EFI firmware has
started using CPL3 and the PMU CPL filters don't discriminate against
SMM, meaning that CPL3 (userspace only) events now also count EFI/SMM
cycles.
- Fixup for perf_event_attr::sig_data
* tag 'perf_urgent_for_v5.17_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/x86/intel/pt: Fix crash with stop filters in single-range mode
perf: uapi: Document perf_event_attr::sig_data truncation on 32 bit architectures
selftests/perf_events: Test modification of perf_event_attr::sig_data
perf: Copy perf_event_attr::sig_data on modification
x86/perf: Default set FREEZE_ON_SMI for all
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Merge tag 'for-linus-5.17a-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
- documentation fixes related to Xen
- enable x2apic mode when available when running as hardware
virtualized guest under Xen
- cleanup and fix a corner case of vcpu enumeration when running a
paravirtualized Xen guest
* tag 'for-linus-5.17a-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
x86/Xen: streamline (and fix) PV CPU enumeration
xen: update missing ioctl magic numers documentation
Improve docs for IOCTL_GNTDEV_MAP_GRANT_REF
xen: xenbus_dev.h: delete incorrect file name
xen/x2apic: enable x2apic mode when supported for HVM
* A couple of fixes when handling an exception while a SError has been delivered
* Workaround for Cortex-A510's single-step erratum
RISCV:
* Make CY, TM, and IR counters accessible in VU mode
* Fix SBI implementation version
x86:
* Report deprecation of x87 features in supported CPUID
* Preparation for fixing an interrupt delivery race on AMD hardware
* Sparse fix
All except POWER and s390:
* Rework guest entry code to correctly mark noinstr areas and fix vtime'
accounting (for x86, this was already mostly correct but not entirely;
for ARM, MIPS and RISC-V it wasn't)
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"ARM:
- A couple of fixes when handling an exception while a SError has
been delivered
- Workaround for Cortex-A510's single-step erratum
RISC-V:
- Make CY, TM, and IR counters accessible in VU mode
- Fix SBI implementation version
x86:
- Report deprecation of x87 features in supported CPUID
- Preparation for fixing an interrupt delivery race on AMD hardware
- Sparse fix
All except POWER and s390:
- Rework guest entry code to correctly mark noinstr areas and fix
vtime' accounting (for x86, this was already mostly correct but not
entirely; for ARM, MIPS and RISC-V it wasn't)"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: x86: Use ERR_PTR_USR() to return -EFAULT as a __user pointer
KVM: x86: Report deprecated x87 features in supported CPUID
KVM: arm64: Workaround Cortex-A510's single-step and PAC trap errata
KVM: arm64: Stop handle_exit() from handling HVC twice when an SError occurs
KVM: arm64: Avoid consuming a stale esr value when SError occur
RISC-V: KVM: Fix SBI implementation version
RISC-V: KVM: make CY, TM, and IR counters accessible in VU mode
kvm/riscv: rework guest entry logic
kvm/arm64: rework guest entry logic
kvm/x86: rework guest entry logic
kvm/mips: rework guest entry logic
kvm: add guest_state_{enter,exit}_irqoff()
KVM: x86: Move delivery of non-APICv interrupt into vendor code
kvm: Move KVM_GET_XSAVE2 IOCTL definition at the end of kvm.h
- Limit the length of ioend chains in writeback so that we don't trip
the softlockup watchdog and to limit long tail latency on clearing
PageWriteback.
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Merge tag 'iomap-5.17-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull iomap fix from Darrick Wong:
"A single bugfix for iomap.
The fix should eliminate occasional complaints about stall warnings
when a lot of writeback IO completes all at once and we have to then
go clearing status on a large number of folios.
Summary:
- Limit the length of ioend chains in writeback so that we don't trip
the softlockup watchdog and to limit long tail latency on clearing
PageWriteback"
* tag 'iomap-5.17-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs, iomap: limit individual ioend chain lengths in writeback
Linus Torvalds