- Fix purgatory build process so bin2c tool does not get built
unnecessarily and the Makefile is more consistent with other
architectures.
- Return earlier simple design of arch_get_random_seed_long|int()
and arch_get_random_long|int() callbacks as result of changes
in generic RNG code.
- Fix minor comment typos and spelling mistakes.
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Merge tag 's390-5.19-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Alexander Gordeev:
- Fix purgatory build process so bin2c tool does not get built
unnecessarily and the Makefile is more consistent with other
architectures.
- Return earlier simple design of arch_get_random_seed_long|int() and
arch_get_random_long|int() callbacks as result of changes in generic
RNG code.
- Fix minor comment typos and spelling mistakes.
* tag 's390-5.19-5' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/qdio: Fix spelling mistake
s390/sclp: Fix typo in comments
s390/archrandom: simplify back to earlier design and initialize earlier
s390/purgatory: remove duplicated build rule of kexec-purgatory.o
s390/purgatory: hard-code obj-y in Makefile
s390: remove unneeded 'select BUILD_BIN2C'
- Bugfixes:
- Allocate a fattr for _nfs4_discover_trunking()
- Fix module reference count leak in nfs4_run_state_manager()
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Merge tag 'nfs-for-5.19-3' of git://git.linux-nfs.org/projects/anna/linux-nfs
Pull NFS client fixes from Anna Schumaker:
- Allocate a fattr for _nfs4_discover_trunking()
- Fix module reference count leak in nfs4_run_state_manager()
* tag 'nfs-for-5.19-3' of git://git.linux-nfs.org/projects/anna/linux-nfs:
NFSv4: Add an fattr allocation to _nfs4_discover_trunking()
NFS: restore module put when manager exits.
issue on the MDS side, but for now we are going with this one-liner
to avoid busy looping and potential soft lockups.
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Merge tag 'ceph-for-5.19-rc5' of https://github.com/ceph/ceph-client
Pull ceph fix from Ilya Dryomov:
"A ceph filesystem fix, marked for stable.
There appears to be a deeper issue on the MDS side, but for now we are
going with this one-liner to avoid busy looping and potential soft
lockups"
* tag 'ceph-for-5.19-rc5' of https://github.com/ceph/ceph-client:
ceph: wait on async create before checking caps for syncfs
running the lvm2 testsuite's dm-raid tests. Includes changes to MD's
raid5.c given the dependency dm-raid has on the MD code.
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Merge tag 'for-5.19/dm-fixes-5' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
"Three fixes for invalid memory accesses discovered by using KASAN
while running the lvm2 testsuite's dm-raid tests. Includes changes to
MD's raid5.c given the dependency dm-raid has on the MD code"
* tag 'for-5.19/dm-fixes-5' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm raid: fix KASAN warning in raid5_add_disks
dm raid: fix KASAN warning in raid5_remove_disk
dm raid: fix accesses beyond end of raid member array
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Merge tag 'io_uring-5.19-2022-07-01' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
"Two minor tweaks:
- While we still can, adjust the send/recv based flags to be in
->ioprio rather than in ->addr2. This is consistent with eg accept,
and also doesn't waste a full 64-bit field for flags (Pavel)
- 5.18-stable fix for re-importing provided buffers. Not much real
world relevance here as it'll only impact non-pollable files gone
async, which is more of a practical test case rather than something
that is used in the wild (Dylan)"
* tag 'io_uring-5.19-2022-07-01' of git://git.kernel.dk/linux-block:
io_uring: fix provided buffer import
io_uring: keep sendrecv flags in ioprio
One simple driver fix for a dma overrun.
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fix from James Bottomley:
"One simple driver fix for a dma overrun"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: hisi_sas: Limit max hw sectors for v3 HW
* Fix a compilation warning with some versions of gcc/sparse when
compiling the pata_cs5535 driver, from John.
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Merge tag 'ata-5.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata
Pull ATA fix from Damien Le Moal:
- Fix a compilation warning with some versions of gcc/sparse when
compiling the pata_cs5535 driver, from John.
* tag 'ata-5.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata:
ata: pata_cs5535: Fix W=1 warnings
- Initialize a spinlock in the stm32 reset code
- Add dt bindings to the clk maintainer filepattern
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
"Two small fixes
- Initialize a spinlock in the stm32 reset code
- Add dt bindings to the clk maintainer filepattern"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
MAINTAINERS: add include/dt-bindings/clock to COMMON CLK FRAMEWORK
clk: stm32: rcc_reset: Fix missing spin_lock_init()
fbdev:
- sysfb fixes/conflicting fb fixes.
amdgpu:
- GPU recovery fix
- Fix integer type usage in fourcc header for AMD modifiers
- KFD TLB flush fix for gfx9 APUs
- Display fix
i915:
- Fix ioctl argument error return
- Fix d3cold disable to allow PCI upstream bridge D3 transition
- Fix setting cache_dirty for dma-buf objects on discrete
msm:
- Fix to increment vsync_cnt before calling drm_crtc_handle_vblank so that
userspace sees the value *after* it is incremented if waiting for vblank
events
- Fix to reset drm_dev to NULL in dp_display_unbind to avoid a crash in
probe/bind error paths
- Fix to resolve the smatch error of de-referencing before NULL check in
dpu_encoder_phys_wb.c
- Fix error return to userspace if fence-id allocation fails in submit
ioctl
vc4:
- NULL ptr dereference fix
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Merge tag 'drm-fixes-2022-07-01' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Bit quieter this week, the main thing is it pulls in the fixes for the
sysfb resource issue you were seeing. these had been queued for next
so should have had some decent testing.
Otherwise amdgpu, i915 and msm each have a few fixes, and vc4 has one.
fbdev:
- sysfb fixes/conflicting fb fixes
amdgpu:
- GPU recovery fix
- Fix integer type usage in fourcc header for AMD modifiers
- KFD TLB flush fix for gfx9 APUs
- Display fix
i915:
- Fix ioctl argument error return
- Fix d3cold disable to allow PCI upstream bridge D3 transition
- Fix setting cache_dirty for dma-buf objects on discrete
msm:
- Fix to increment vsync_cnt before calling drm_crtc_handle_vblank so
that userspace sees the value *after* it is incremented if waiting
for vblank events
- Fix to reset drm_dev to NULL in dp_display_unbind to avoid a crash
in probe/bind error paths
- Fix to resolve the smatch error of de-referencing before NULL check
in dpu_encoder_phys_wb.c
- Fix error return to userspace if fence-id allocation fails in
submit ioctl
vc4:
- NULL ptr dereference fix"
* tag 'drm-fixes-2022-07-01' of git://anongit.freedesktop.org/drm/drm:
Revert "drm/amdgpu/display: set vblank_disable_immediate for DC"
drm/amdgpu: To flush tlb for MMHUB of RAVEN series
drm/fourcc: fix integer type usage in uapi header
drm/amdgpu: fix adev variable used in amdgpu_device_gpu_recover()
fbdev: Disable sysfb device registration when removing conflicting FBs
firmware: sysfb: Add sysfb_disable() helper function
firmware: sysfb: Make sysfb_create_simplefb() return a pdev pointer
drm/msm/gem: Fix error return on fence id alloc fail
drm/i915: tweak the ordering in cpu_write_needs_clflush
drm/i915/dgfx: Disable d3cold at gfx root port
drm/i915/gem: add missing else
drm/vc4: perfmon: Fix variable dereferenced before check
drm/msm/dpu: Fix variable dereferenced before check
drm/msm/dp: reset drm_dev to NULL at dp_display_unbind()
drm/msm/dpu: Increment vsync_cnt before waking up userspace
sysfb device behaviour when removing conflicting framebuffers
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Merge tag 'drm-misc-fixes-2022-06-30' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
A NULL pointer dereference fix for vc4, and 3 patches to improve the
sysfb device behaviour when removing conflicting framebuffers
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220630072404.2fa4z3nk5h5q34ci@houat
Current release - new code bugs:
- clear msg_get_inq in __sys_recvfrom() and __copy_msghdr_from_user()
- mptcp:
- invoke MP_FAIL response only when needed
- fix shutdown vs fallback race
- consistent map handling on failure
- octeon_ep: use bitwise AND
Previous releases - regressions:
- tipc: move bc link creation back to tipc_node_create, fix NPD
Previous releases - always broken:
- tcp: add a missing nf_reset_ct() in 3WHS handling, prevent socket
buffered skbs from keeping refcount on the conntrack module
- ipv6: take care of disable_policy when restoring routes
- tun: make sure to always disable and unlink NAPI instances
- phy: don't trigger state machine while in suspend
- netfilter: nf_tables: avoid skb access on nf_stolen
- asix: fix "can't send until first packet is send" issue
- usb: asix: do not force pause frames support
- nxp-nci: don't issue a zero length i2c_master_read()
Misc:
- ncsi: allow use of proper "mellanox" DT vendor prefix
- act_api: add a message for user space if any actions were already
flushed before the error was hit
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-5.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from netfilter.
Current release - new code bugs:
- clear msg_get_inq in __sys_recvfrom() and __copy_msghdr_from_user()
- mptcp:
- invoke MP_FAIL response only when needed
- fix shutdown vs fallback race
- consistent map handling on failure
- octeon_ep: use bitwise AND
Previous releases - regressions:
- tipc: move bc link creation back to tipc_node_create, fix NPD
Previous releases - always broken:
- tcp: add a missing nf_reset_ct() in 3WHS handling to prevent socket
buffered skbs from keeping refcount on the conntrack module
- ipv6: take care of disable_policy when restoring routes
- tun: make sure to always disable and unlink NAPI instances
- phy: don't trigger state machine while in suspend
- netfilter: nf_tables: avoid skb access on nf_stolen
- asix: fix "can't send until first packet is send" issue
- usb: asix: do not force pause frames support
- nxp-nci: don't issue a zero length i2c_master_read()
Misc:
- ncsi: allow use of proper "mellanox" DT vendor prefix
- act_api: add a message for user space if any actions were already
flushed before the error was hit"
* tag 'net-5.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (55 commits)
net: dsa: felix: fix race between reading PSFP stats and port stats
selftest: tun: add test for NAPI dismantle
net: tun: avoid disabling NAPI twice
net: sparx5: mdb add/del handle non-sparx5 devices
net: sfp: fix memory leak in sfp_probe()
mlxsw: spectrum_router: Fix rollback in tunnel next hop init
net: rose: fix UAF bugs caused by timer handler
net: usb: ax88179_178a: Fix packet receiving
net: bonding: fix use-after-free after 802.3ad slave unbind
ipv6: fix lockdep splat in in6_dump_addrs()
net: phy: ax88772a: fix lost pause advertisement configuration
net: phy: Don't trigger state machine while in suspend
usbnet: fix memory allocation in helpers
selftests net: fix kselftest net fatal error
NFC: nxp-nci: don't print header length mismatch on i2c error
NFC: nxp-nci: Don't issue a zero length i2c_master_read()
net: tipc: fix possible refcount leak in tipc_sk_create()
nfc: nfcmrvl: Fix irq_of_parse_and_map() return value
net: ipv6: unexport __init-annotated seg6_hmac_net_init()
ipv6/sit: fix ipip6_tunnel_get_prl return value
...
A regression has been reported by Nicolas Boichat, found while using the
copy_file_range syscall to copy a tracefs file.
Before commit 5dae222a5f ("vfs: allow copy_file_range to copy across
devices") the kernel would return -EXDEV to userspace when trying to
copy a file across different filesystems. After this commit, the
syscall doesn't fail anymore and instead returns zero (zero bytes
copied), as this file's content is generated on-the-fly and thus reports
a size of zero.
Another regression has been reported by He Zhe - the assertion of
WARN_ON_ONCE(ret == -EOPNOTSUPP) can be triggered from userspace when
copying from a sysfs file whose read operation may return -EOPNOTSUPP.
Since we do not have test coverage for copy_file_range() between any two
types of filesystems, the best way to avoid these sort of issues in the
future is for the kernel to be more picky about filesystems that are
allowed to do copy_file_range().
This patch restores some cross-filesystem copy restrictions that existed
prior to commit 5dae222a5f ("vfs: allow copy_file_range to copy across
devices"), namely, cross-sb copy is not allowed for filesystems that do
not implement ->copy_file_range().
Filesystems that do implement ->copy_file_range() have full control of
the result - if this method returns an error, the error is returned to
the user. Before this change this was only true for fs that did not
implement the ->remap_file_range() operation (i.e. nfsv3).
Filesystems that do not implement ->copy_file_range() still fall-back to
the generic_copy_file_range() implementation when the copy is within the
same sb. This helps the kernel can maintain a more consistent story
about which filesystems support copy_file_range().
nfsd and ksmbd servers are modified to fall-back to the
generic_copy_file_range() implementation in case vfs_copy_file_range()
fails with -EOPNOTSUPP or -EXDEV, which preserves behavior of
server-side-copy.
fall-back to generic_copy_file_range() is not implemented for the smb
operation FSCTL_DUPLICATE_EXTENTS_TO_FILE, which is arguably a correct
change of behavior.
Fixes: 5dae222a5f ("vfs: allow copy_file_range to copy across devices")
Link: https://lore.kernel.org/linux-fsdevel/20210212044405.4120619-1-drinkcat@chromium.org/
Link: https://lore.kernel.org/linux-fsdevel/CANMq1KDZuxir2LM5jOTm0xx+BnvW=ZmpsG47CyHFJwnw7zSX6Q@mail.gmail.com/
Link: https://lore.kernel.org/linux-fsdevel/20210126135012.1.If45b7cdc3ff707bc1efa17f5366057d60603c45f@changeid/
Link: https://lore.kernel.org/linux-fsdevel/20210630161320.29006-1-lhenriques@suse.de/
Reported-by: Nicolas Boichat <drinkcat@chromium.org>
Reported-by: kernel test robot <oliver.sang@intel.com>
Signed-off-by: Luis Henriques <lhenriques@suse.de>
Fixes: 64bf5ff58d ("vfs: no fallback for ->copy_file_range")
Link: https://lore.kernel.org/linux-fsdevel/20f17f64-88cb-4e80-07c1-85cb96c83619@windriver.com/
Reported-by: He Zhe <zhe.he@windriver.com>
Tested-by: Namjae Jeon <linkinjeon@kernel.org>
Tested-by: Luis Henriques <lhenriques@suse.de>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit f49169c97f ("NFSD: Remove svc_serv_ops::svo_module") removed
calls to module_put_and_kthread_exit() from threads that acted as SUNRPC
servers and had a related svc_serv_ops structure. This was correct.
It ALSO removed the module_put_and_kthread_exit() call from
nfs4_run_state_manager() which is NOT a SUNRPC service.
Consequently every time the NFSv4 state manager runs the module count
increments and won't be decremented. So the nfsv4 module cannot be
unloaded.
So restore the module_put_and_kthread_exit() call.
Fixes: f49169c97f ("NFSD: Remove svc_serv_ops::svo_module")
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Both PSFP stats and the port stats read by ocelot_check_stats_work() are
indirectly read through the same mechanism - write to STAT_CFG:STAT_VIEW,
read from SYS:STAT:CNT[n].
It's just that for port stats, we write STAT_VIEW with the index of the
port, and for PSFP stats, we write STAT_VIEW with the filter index.
So if we allow them to run concurrently, ocelot_check_stats_work() may
change the view from vsc9959_psfp_counters_get(), and vice versa.
Fixes: 7d4b564d6a ("net: dsa: felix: support psfp filter on vsc9959")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Link: https://lore.kernel.org/r/20220629183007.3808130-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Eric reports that syzbot made short work out of my speculative
fix. Indeed when queue gets detached its tfile->tun remains,
so we would try to stop NAPI twice with a detach(), close()
sequence.
Alternative fix would be to move tun_napi_disable() to
tun_detach_all() and let the NAPI run after the queue
has been detached.
Fixes: a8fc8cb569 ("net: tun: stop NAPI when detaching queues")
Reported-by: syzbot <syzkaller@googlegroups.com>
Reported-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20220629181911.372047-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When adding/deleting mdb entries on other net_devices, eg., tap
interfaces, it should not crash.
Fixes: 3bacfccdcb ("net: sparx5: Add mdb handlers")
Signed-off-by: Casper Andersson <casper.casan@gmail.com>
Reviewed-by: Steen Hegelund <Steen.Hegelund@microchip.com>
Link: https://lore.kernel.org/r/20220630122226.316812-1-casper.casan@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
s390x appears to present two RNG interfaces:
- a "TRNG" that gathers entropy using some hardware function; and
- a "DRBG" that takes in a seed and expands it.
Previously, the TRNG was wired up to arch_get_random_{long,int}(), but
it was observed that this was being called really frequently, resulting
in high overhead. So it was changed to be wired up to arch_get_random_
seed_{long,int}(), which was a reasonable decision. Later on, the DRBG
was then wired up to arch_get_random_{long,int}(), with a complicated
buffer filling thread, to control overhead and rate.
Fortunately, none of the performance issues matter much now. The RNG
always attempts to use arch_get_random_seed_{long,int}() first, which
means a complicated implementation of arch_get_random_{long,int}() isn't
really valuable or useful to have around. And it's only used when
reseeding, which means it won't hit the high throughput complications
that were faced before.
So this commit returns to an earlier design of just calling the TRNG in
arch_get_random_seed_{long,int}(), and returning false in arch_get_
random_{long,int}().
Part of what makes the simplification possible is that the RNG now seeds
itself using the TRNG at bootup. But this only works if the TRNG is
detected early in boot, before random_init() is called. So this commit
also causes that check to happen in setup_arch().
Cc: stable@vger.kernel.org
Cc: Harald Freudenberger <freude@linux.ibm.com>
Cc: Ingo Franzki <ifranzki@linux.ibm.com>
Cc: Juergen Christ <jchrist@linux.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Link: https://lore.kernel.org/r/20220610222023.378448-1-Jason@zx2c4.com
Reviewed-by: Harald Freudenberger <freude@linux.ibm.com>
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
io_import_iovec uses the s pointer, but this was changed immediately
after the iovec was re-imported and so it was imported into the wrong
place.
Change the ordering.
Fixes: 2be2eb02e2 ("io_uring: ensure reads re-import for selected buffers")
Signed-off-by: Dylan Yudaken <dylany@fb.com>
Link: https://lore.kernel.org/r/20220630132006.2825668-1-dylany@fb.com
[axboe: ensure we don't half-import as well]
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Three minor bug fixes:
- qedr not setting the QP timeout properly toward userspace
- Memory leak on error path in ib_cm
- Divide by 0 in RDMA interrupt moderation
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma fixes from Jason Gunthorpe:
"Three minor bug fixes:
- qedr not setting the QP timeout properly toward userspace
- Memory leak on error path in ib_cm
- Divide by 0 in RDMA interrupt moderation"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
linux/dim: Fix divide by 0 in RDMA DIM
RDMA/cm: Fix memory leak in ib_cm_insert_listen
RDMA/qedr: Fix reporting QP timeout attribute
Pull fanotify fix from Jan Kara:
"A fix for recently added fanotify API to have stricter checks and
refuse some invalid flag combinations to make our life easier in the
future"
* tag 'fsnotify_for_v5.19-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
fanotify: refine the validation checks on non-dir inode mask
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Merge tag 'v5.19-p3' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fix from Herbert Xu:
"Fix a regression that breaks the ccp driver"
* tag 'v5.19-p3' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: ccp - Fix device IRQ counting by using platform_irq_count()
We waste a u64 SQE field for flags even though we don't need as many
bits and it can be used for something more useful later. Store io_uring
specific send/recv flags in sqe->ioprio instead of ->addr2.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Fixes: 0455d4ccec ("io_uring: add POLL_FIRST support for send/sendmsg and recv/recvmsg")
[axboe: change comment in io_uring.h as well]
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This is equivalent to the pattern rule in scripts/Makefile.build.
Having the dependency on $(obj)/purgatory.ro is enough.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Link: https://lore.kernel.org/r/20220613170902.1775211-3-masahiroy@kernel.org
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
The purgatory/ directory is entirely guarded in arch/s390/Kbuild.
CONFIG_ARCH_HAS_KEXEC_PURGATORY is bool type.
$(CONFIG_ARCH_HAS_KEXEC_PURGATORY) is always 'y' when Kbuild visits
this Makefile for building.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Link: https://lore.kernel.org/r/20220613170902.1775211-2-masahiroy@kernel.org
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Since commit 4c0f032d49 ("s390/purgatory: Omit use of bin2c"),
s390 builds the purgatory without using bin2c.
Remove 'select BUILD_BIN2C' to avoid the unneeded build of bin2c.
Fixes: 4c0f032d49 ("s390/purgatory: Omit use of bin2c")
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Link: https://lore.kernel.org/r/20220613170902.1775211-1-masahiroy@kernel.org
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
sfp_probe() allocates a memory chunk from sfp with sfp_alloc(). When
devm_add_action() fails, sfp is not freed, which leads to a memory leak.
We should use devm_add_action_or_reset() instead of devm_add_action().
Signed-off-by: Jianglei Nie <niejianglei2021@163.com>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://lore.kernel.org/r/20220629075550.2152003-1-niejianglei2021@163.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
In mlxsw_sp_nexthop6_init(), a next hop is always added to the router
linked list, and mlxsw_sp_nexthop_type_init() is invoked afterwards. When
that function results in an error, the next hop will not have been removed
from the linked list. As the error is propagated upwards and the caller
frees the next hop object, the linked list ends up holding an invalid
object.
A similar issue comes up with mlxsw_sp_nexthop4_init(), where rollback
block does exist, however does not include the linked list removal.
Both IPv6 and IPv4 next hops have a similar issue with next-hop counter
rollbacks. As these were introduced in the same patchset as the next hop
linked list, include the cleanup in this patch.
Fixes: dbe4598c1e ("mlxsw: spectrum_router: Keep nexthops in a linked list")
Fixes: a5390278a5 ("mlxsw: spectrum: Add support for setting counters on nexthops")
Signed-off-by: Petr Machata <petrm@nvidia.com>
Reviewed-by: Amit Cohen <amcohen@nvidia.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Link: https://lore.kernel.org/r/20220629070205.803952-1-idosch@nvidia.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
There are UAF bugs in rose_heartbeat_expiry(), rose_timer_expiry()
and rose_idletimer_expiry(). The root cause is that del_timer()
could not stop the timer handler that is running and the refcount
of sock is not managed properly.
One of the UAF bugs is shown below:
(thread 1) | (thread 2)
| rose_bind
| rose_connect
| rose_start_heartbeat
rose_release | (wait a time)
case ROSE_STATE_0 |
rose_destroy_socket | rose_heartbeat_expiry
rose_stop_heartbeat |
sock_put(sk) | ...
sock_put(sk) // FREE |
| bh_lock_sock(sk) // USE
The sock is deallocated by sock_put() in rose_release() and
then used by bh_lock_sock() in rose_heartbeat_expiry().
Although rose_destroy_socket() calls rose_stop_heartbeat(),
it could not stop the timer that is running.
The KASAN report triggered by POC is shown below:
BUG: KASAN: use-after-free in _raw_spin_lock+0x5a/0x110
Write of size 4 at addr ffff88800ae59098 by task swapper/3/0
...
Call Trace:
<IRQ>
dump_stack_lvl+0xbf/0xee
print_address_description+0x7b/0x440
print_report+0x101/0x230
? irq_work_single+0xbb/0x140
? _raw_spin_lock+0x5a/0x110
kasan_report+0xed/0x120
? _raw_spin_lock+0x5a/0x110
kasan_check_range+0x2bd/0x2e0
_raw_spin_lock+0x5a/0x110
rose_heartbeat_expiry+0x39/0x370
? rose_start_heartbeat+0xb0/0xb0
call_timer_fn+0x2d/0x1c0
? rose_start_heartbeat+0xb0/0xb0
expire_timers+0x1f3/0x320
__run_timers+0x3ff/0x4d0
run_timer_softirq+0x41/0x80
__do_softirq+0x233/0x544
irq_exit_rcu+0x41/0xa0
sysvec_apic_timer_interrupt+0x8c/0xb0
</IRQ>
<TASK>
asm_sysvec_apic_timer_interrupt+0x1b/0x20
RIP: 0010:default_idle+0xb/0x10
RSP: 0018:ffffc9000012fea0 EFLAGS: 00000202
RAX: 000000000000bcae RBX: ffff888006660f00 RCX: 000000000000bcae
RDX: 0000000000000001 RSI: ffffffff843a11c0 RDI: ffffffff843a1180
RBP: dffffc0000000000 R08: dffffc0000000000 R09: ffffed100da36d46
R10: dfffe9100da36d47 R11: ffffffff83cf0950 R12: 0000000000000000
R13: 1ffff11000ccc1e0 R14: ffffffff8542af28 R15: dffffc0000000000
...
Allocated by task 146:
__kasan_kmalloc+0xc4/0xf0
sk_prot_alloc+0xdd/0x1a0
sk_alloc+0x2d/0x4e0
rose_create+0x7b/0x330
__sock_create+0x2dd/0x640
__sys_socket+0xc7/0x270
__x64_sys_socket+0x71/0x80
do_syscall_64+0x43/0x90
entry_SYSCALL_64_after_hwframe+0x46/0xb0
Freed by task 152:
kasan_set_track+0x4c/0x70
kasan_set_free_info+0x1f/0x40
____kasan_slab_free+0x124/0x190
kfree+0xd3/0x270
__sk_destruct+0x314/0x460
rose_release+0x2fa/0x3b0
sock_close+0xcb/0x230
__fput+0x2d9/0x650
task_work_run+0xd6/0x160
exit_to_user_mode_loop+0xc7/0xd0
exit_to_user_mode_prepare+0x4e/0x80
syscall_exit_to_user_mode+0x20/0x40
do_syscall_64+0x4f/0x90
entry_SYSCALL_64_after_hwframe+0x46/0xb0
This patch adds refcount of sock when we use functions
such as rose_start_heartbeat() and so on to start timer,
and decreases the refcount of sock when timer is finished
or deleted by functions such as rose_stop_heartbeat()
and so on. As a result, the UAF bugs could be mitigated.
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Duoming Zhou <duoming@zju.edu.cn>
Tested-by: Duoming Zhou <duoming@zju.edu.cn>
Link: https://lore.kernel.org/r/20220629002640.5693-1-duoming@zju.edu.cn
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This patch corrects packet receiving in ax88179_rx_fixup.
- problem observed:
ifconfig shows allways a lot of 'RX Errors' while packets
are received normally.
This occurs because ax88179_rx_fixup does not recognise properly
the usb urb received.
The packets are normally processed and at the end, the code exits
with 'return 0', generating RX Errors.
(pkt_cnt==-2 and ptk_hdr over field rx_hdr trying to identify
another packet there)
This is a usb urb received by "tcpdump -i usbmon2 -X" on a
little-endian CPU:
0x0000: eeee f8e3 3b19 87a0 94de 80e3 daac 0800
^ packet 1 start (pkt_len = 0x05ec)
^^^^ IP alignment pseudo header
^ ethernet packet start
last byte ethernet packet v
padding (8-bytes aligned) vvvv vvvv
0x05e0: c92d d444 1420 8a69 83dd 272f e82b 9811
0x05f0: eeee f8e3 3b19 87a0 94de 80e3 daac 0800
... ^ packet 2
0x0be0: eeee f8e3 3b19 87a0 94de 80e3 daac 0800
...
0x1130: 9d41 9171 8a38 0ec5 eeee f8e3 3b19 87a0
...
0x1720: 8cfc 15ff 5e4c e85c eeee f8e3 3b19 87a0
...
0x1d10: ecfa 2a3a 19ab c78c eeee f8e3 3b19 87a0
...
0x2070: eeee f8e3 3b19 87a0 94de 80e3 daac 0800
... ^ packet 7
0x2120: 7c88 4ca5 5c57 7dcc 0d34 7577 f778 7e0a
0x2130: f032 e093 7489 0740 3008 ec05 0000 0080
====1==== ====2====
hdr_off ^
pkt_len = 0x05ec ^^^^
AX_RXHDR_*=0x00830 ^^^^ ^
pkt_len = 0 ^^^^
AX_RXHDR_DROP_ERR=0x80000000 ^^^^ ^
0x2140: 3008 ec05 0000 0080 3008 5805 0000 0080
0x2150: 3008 ec05 0000 0080 3008 ec05 0000 0080
0x2160: 3008 5803 0000 0080 3008 c800 0000 0080
===11==== ===12==== ===13==== ===14====
0x2170: 0000 0000 0e00 3821
^^^^ ^^^^ rx_hdr
^^^^ pkt_cnt=14
^^^^ hdr_off=0x2138
^^^^ ^^^^ padding
The dump shows that pkt_cnt is the number of entrys in the
per-packet metadata. It is "2 * packet count".
Each packet have two entrys. The first have a valid
value (pkt_len and AX_RXHDR_*) and the second have a
dummy-header 0x80000000 (pkt_len=0 with AX_RXHDR_DROP_ERR).
Why exists dummy-header for each packet?!?
My guess is that this was done probably to align the
entry for each packet to 64-bits and maintain compatibility
with old firmware.
There is also a padding (0x00000000) before the rx_hdr to
align the end of rx_hdr to 64-bit.
Note that packets have a alignment of 64-bits (8-bytes).
This patch assumes that the dummy-header and the last
padding are optional. So it preserves semantics and
recognises the same valid packets as the current code.
This patch was made using only the dumpfile information and
tested with only one device:
0b95:1790 ASIX Electronics Corp. AX88179 Gigabit Ethernet
Fixes: 57bc3d3ae8 ("net: usb: ax88179_178a: Fix out-of-bounds accesses in RX fixup")
Fixes: e2ca90c276 ("ax88179_178a: ASIX AX88179_178A USB 3.0/2.0 to gigabit ethernet adapter driver")
Signed-off-by: Jose Alonso <joalonsof@gmail.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Link: https://lore.kernel.org/r/d6970bb04bf67598af4d316eaeb1792040b18cfd.camel@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
ADATA IM2P33F8ABR1 reports bogus eui64 values that appear to be the same
across all drives. Quirk them out so they are not marked as "non globally
unique" duplicates.
Co-developed-by: Felipe de Jesus Araujo da Conceição <felipe.conceicao@petrosoftdesign.com>
Signed-off-by: Felipe de Jesus Araujo da Conceição <felipe.conceicao@petrosoftdesign.com>
Signed-off-by: Lamarque V. Souza <lamarque.souza@petrosoftdesign.com>
Cc: stable@vger.kernel.org
Signed-off-by: Christoph Hellwig <hch@lst.de>
If the clear_ids attribute is set to true, the EUI/GUID/UUID is cleared
for the passthru target. By default, loop targets will set clear_ids to
true.
This resolves an issue where a connect to a passthru target fails when
using a trtype of 'loop' because EUI/GUID/UUID is not unique.
Fixes: 2079f41ec6 ("nvme: check that EUI/GUID/UUID are globally unique")
Signed-off-by: Alan Adamson <alan.adamson@oracle.com>
Reviewed-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
commit 0622cab034 ("bonding: fix 802.3ad aggregator reselection"),
resolve case, when there is several aggregation groups in the same bond.
bond_3ad_unbind_slave will invalidate (clear) aggregator when
__agg_active_ports return zero. So, ad_clear_agg can be executed even, when
num_of_ports!=0. Than bond_3ad_unbind_slave can be executed again for,
previously cleared aggregator. NOTE: at this time bond_3ad_unbind_slave
will not update slave ports list, because lag_ports==NULL. So, here we
got slave ports, pointing to freed aggregator memory.
Fix with checking actual number of ports in group (as was before
commit 0622cab034 ("bonding: fix 802.3ad aggregator reselection") ),
before ad_clear_agg().
The KASAN logs are as follows:
[ 767.617392] ==================================================================
[ 767.630776] BUG: KASAN: use-after-free in bond_3ad_state_machine_handler+0x13dc/0x1470
[ 767.638764] Read of size 2 at addr ffff00011ba9d430 by task kworker/u8:7/767
[ 767.647361] CPU: 3 PID: 767 Comm: kworker/u8:7 Tainted: G O 5.15.11 #15
[ 767.655329] Hardware name: DNI AmazonGo1 A7040 board (DT)
[ 767.660760] Workqueue: lacp_1 bond_3ad_state_machine_handler
[ 767.666468] Call trace:
[ 767.668930] dump_backtrace+0x0/0x2d0
[ 767.672625] show_stack+0x24/0x30
[ 767.675965] dump_stack_lvl+0x68/0x84
[ 767.679659] print_address_description.constprop.0+0x74/0x2b8
[ 767.685451] kasan_report+0x1f0/0x260
[ 767.689148] __asan_load2+0x94/0xd0
[ 767.692667] bond_3ad_state_machine_handler+0x13dc/0x1470
Fixes: 0622cab034 ("bonding: fix 802.3ad aggregator reselection")
Co-developed-by: Maksym Glubokiy <maksym.glubokiy@plvision.eu>
Signed-off-by: Maksym Glubokiy <maksym.glubokiy@plvision.eu>
Signed-off-by: Yevhen Orlov <yevhen.orlov@plvision.eu>
Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Link: https://lore.kernel.org/r/20220629012914.361-1-yevhen.orlov@plvision.eu
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In case of asix_ax88772a_link_change_notify() workaround, we run soft
reset which will automatically clear MII_ADVERTISE configuration. The
PHYlib framework do not know about changed configuration state of the
PHY, so we need use phy_init_hw() to reinit PHY configuration.
Fixes: dde2584692 ("net: usb/phy: asix: add support for ax88772A/C PHYs")
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20220628114349.3929928-1-o.rempel@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Upon system sleep, mdio_bus_phy_suspend() stops the phy_state_machine(),
but subsequent interrupts may retrigger it:
They may have been left enabled to facilitate wakeup and are not
quiesced until the ->suspend_noirq() phase. Unwanted interrupts may
hence occur between mdio_bus_phy_suspend() and dpm_suspend_noirq(),
as well as between dpm_resume_noirq() and mdio_bus_phy_resume().
Retriggering the phy_state_machine() through an interrupt is not only
undesirable for the reason given in mdio_bus_phy_suspend() (freezing it
midway with phydev->lock held), but also because the PHY may be
inaccessible after it's suspended: Accesses to USB-attached PHYs are
blocked once usb_suspend_both() clears the can_submit flag and PHYs on
PCI network cards may become inaccessible upon suspend as well.
Amend phy_interrupt() to avoid triggering the state machine if the PHY
is suspended. Signal wakeup instead if the attached net_device or its
parent has been configured as a wakeup source. (Those conditions are
identical to mdio_bus_phy_may_suspend().) Postpone handling of the
interrupt until the PHY has resumed.
Before stopping the phy_state_machine() in mdio_bus_phy_suspend(),
wait for a concurrent phy_interrupt() to run to completion. That is
necessary because phy_interrupt() may have checked the PHY's suspend
status before the system sleep transition commenced and it may thus
retrigger the state machine after it was stopped.
Likewise, after re-enabling interrupt handling in mdio_bus_phy_resume(),
wait for a concurrent phy_interrupt() to complete to ensure that
interrupts which it postponed are properly rerun.
The issue was exposed by commit 1ce8b37241 ("usbnet: smsc95xx: Forward
PHY interrupts to PHY driver to avoid polling"), but has existed since
forever.
Fixes: 541cd3ee00 ("phylib: Fix deadlock on resume")
Link: https://lore.kernel.org/netdev/a5315a8a-32c2-962f-f696-de9a26d30091@samsung.com/
Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: stable@vger.kernel.org # v2.6.33+
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/b7f386d04e9b5b0e2738f0125743e30676f309ef.1656410895.git.lukas@wunner.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
usbnet provides some helper functions that are also used in
the context of reset() operations. During a reset the other
drivers on a device are unable to operate. As that can be block
drivers, a driver for another interface cannot use paging
in its memory allocations without risking a deadlock.
Use GFP_NOIO in the helpers.
Fixes: 877bd862f3 ("usbnet: introduce usbnet 3 command helpers")
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Link: https://lore.kernel.org/r/20220628093517.7469-1-oneukum@suse.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The incorrect path is causing the following error when trying to run net
kselftests:
In file included from bpf/nat6to4.c:43:
../../../lib/bpf/bpf_helpers.h:11:10: fatal error: 'bpf_helper_defs.h' file not found
^~~~~~~~~~~~~~~~~~~
1 error generated.
Fixes: cf67838c44 ("selftests net: fix bpf build error")
Signed-off-by: Coleman Dietsch <dietschc@csp.edu>
Link: https://lore.kernel.org/r/20220628174744.7908-1-dietschc@csp.edu
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Pablo Neira Ayuso says:
====================
Netfilter fixes for net
1) Restore set counter when one of the CPU loses race to add elements
to sets.
2) After NF_STOLEN, skb might be there no more, update nftables trace
infra to avoid access to skb in this case. From Florian Westphal.
3) nftables bridge might register a prerouting hook with zero priority,
br_netfilter incorrectly skips it. Also from Florian.
* git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf:
netfilter: br_netfilter: do not skip all hooks with 0 priority
netfilter: nf_tables: avoid skb access on nf_stolen
netfilter: nft_dynset: restore set element counter when failing to update
====================
Link: https://lore.kernel.org/r/
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
There's a KASAN warning in raid5_add_disk when running the LVM testsuite.
The warning happens in the test
lvconvert-raid-reshape-linear_to_raid6-single-type.sh. We fix the warning
by verifying that rdev->saved_raid_disk is within limits.
Cc: stable@vger.kernel.org
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
There's a KASAN warning in raid5_remove_disk when running the LVM
testsuite. We fix this warning by verifying that the "number" variable is
within limits.
Cc: stable@vger.kernel.org
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
x86_64 allmodconfig build with W=1 gives these warnings:
drivers/ata/pata_cs5535.c: In function ‘cs5535_set_piomode’:
drivers/ata/pata_cs5535.c:93:11: error: variable ‘dummy’ set but not
used [-Werror=unused-but-set-variable]
u32 reg, dummy;
^~~~~
drivers/ata/pata_cs5535.c: In function ‘cs5535_set_dmamode’:
drivers/ata/pata_cs5535.c:132:11: error: variable ‘dummy’ set but not
used [-Werror=unused-but-set-variable]
u32 reg, dummy;
^~~~~
cc1: all warnings being treated as errors
Mark variables 'dummy' as "maybe unused" as they are only ever written
in rdmsr() calls.
Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
This reverts commit 92020e81dd.
This causes stuttering and timeouts with DMCUB for some users
so revert it until we understand why and safely enable it
to save power.
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1887
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Cc: stable@vger.kernel.org
Linus Torvalds
Dave Airlie
Amir Goldstein
Scott Mayhew
NeilBrown
Jens Axboe
Vladimir Oltean
Jakub Kicinski
Casper Andersson
Zhang Jiaming
Jiang Jian
Jason A. Donenfeld
Dylan Yudaken
Pavel Begunkov
Masahiro Yamada
Jianglei Nie
Petr Machata
Duoming Zhou
Jose Alonso
Lamarque Vieira Souza
Alan Adamson
Yevhen Orlov
Eric Dumazet
Oleksij Rempel
Lukas Wunner
Oliver Neukum
Coleman Dietsch
Mikulas Patocka
John Garry
Alex Deucher