During the commit phase in fast commits if an inode with inline data
is being committed, also commit the inline data along with
inode. Since recovery code just blindly copies entire content found in
inode TLV, there is no change needed on the recovery path. Thus, this
change is backward compatiable.
Signed-off-by: Harshad Shirwadkar <harshadshirwadkar@gmail.com>
Link: https://lore.kernel.org/r/20211015182513.395917-1-harshads@google.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
As commit 6920b39132 ("ext4: add new helper interface
ext4_try_to_trim_range()") moves some code into the separate function
ext4_try_to_trim_range(), the use of the variable ret within that
function is more limited and can be adjusted as well.
Scope the use of the variable ret locally and drop dead assignments.
No functional change.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Link: https://lore.kernel.org/r/20210820120853.23134-1-lukas.bulwahn@gmail.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
The 'enable_quota' variable is only used in an CONFIG_QUOTA.
With CONFIG_QUOTA=n, compiler causes a harmless warning:
fs/ext4/super.c: In function ‘ext4_remount’:
fs/ext4/super.c:5840:6: warning: variable ‘enable_quota’ set but not used
[-Wunused-but-set-variable]
int enable_quota = 0;
^~~~~
Move 'enable_quota' into the same #ifdef CONFIG_QUOTA block
to remove an unused variable warning.
Signed-off-by: Austin Kim <austindh.kim@gmail.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20210824034929.GA13415@raspberrypi
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Return statements in functions returning bool should use true/false
instead of 1/0.
./fs/ext4/namei.c:1441:12-13:WARNING:return of 0/1 in function
'ext4_match' with return type bool
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Jing Yangyang <jing.yangyang@zte.com.cn>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20210824055543.58718-1-deng.changcheng@zte.com.cn
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
In ext4_get_inode_loc(), we may skip IO and get an zero && uptodate
inode buffer when the inode monopolize an inode block for performance
reason. For most cases, ext4_mark_iloc_dirty() will fill the inode
buffer to make it fine, but we could miss this call if something bad
happened. Finally, __ext4_get_inode_loc_noinmem() may probably get an
empty inode buffer and trigger ext4 error.
For example, if we remove a nonexistent xattr on inode A,
ext4_xattr_set_handle() will return ENODATA before invoking
ext4_mark_iloc_dirty(), it will left an uptodate but zero buffer. We
will get checksum error message in ext4_iget() when getting inode again.
EXT4-fs error (device sda): ext4_lookup:1784: inode #131074: comm cat: iget: checksum invalid
Even worse, if we allocate another inode B at the same inode block, it
will corrupt the inode A on disk when write back inode B.
So this patch initialize the inode buffer by filling the in-mem inode
contents if we skip read I/O, ensure that the buffer is really uptodate.
Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20210901020955.1657340-4-yi.zhang@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
In preparation for calling ext4_fill_raw_inode() in
__ext4_get_inode_loc(), move three related functions before
__ext4_get_inode_loc(), no logical change.
Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20210901020955.1657340-3-yi.zhang@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Factor out ext4_fill_raw_inode() from ext4_do_update_inode(), which is
use to fill the in-mem inode contents into the inode table buffer, in
preparation for initializing the exclusive inode buffer without reading
the block in __ext4_get_inode_loc().
Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20210901020955.1657340-2-yi.zhang@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
In the most error path of current extents updating operations are not
roll back partial updates properly when some bad things happens(.e.g in
ext4_ext_insert_extent()). So we may get an inconsistent extents tree
if journal has been aborted due to IO error, which may probability lead
to BUGON later when we accessing these extent entries in errors=continue
mode. This patch drop extent buffer's verify flag before updatng the
contents in ext4_ext_get_access(), and reset it after updating in
__ext4_ext_dirty(). After this patch we could force to check the extent
buffer if extents tree updating was break off, make sure the extents are
consistent.
Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Theodore Ts'o <tytso@mit.edu>
Link: https://lore.kernel.org/r/20210908120850.4012324-4-yi.zhang@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Now that we can check out overlapping extents in leaf block and
out-of-order index extents in index block. But the .ee_block in the
first extent of one leaf block should equal to the .ei_block in it's
parent index extent entry. This patch add a check to verify such
inconsistent between the index and leaf block.
Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Link: https://lore.kernel.org/r/20210908120850.4012324-3-yi.zhang@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
After commit 5946d08937 ("ext4: check for overlapping extents in
ext4_valid_extent_entries()"), we can check out the overlapping extent
entry in leaf extent blocks. But the out-of-order extent entry in index
extent blocks could also trigger bad things if the filesystem is
inconsistent. So this patch add a check to figure out the out-of-order
index extents and return error.
Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Theodore Ts'o <tytso@mit.edu>
Link: https://lore.kernel.org/r/20210908120850.4012324-2-yi.zhang@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
refcount_t type and corresponding API can protect refcounters from
accidental underflow and overflow and further use-after-free situations.
Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Signed-off-by: Xin Tan <tanxin.ctf@gmail.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/1626674355-55795-1-git-send-email-xiyuyang19@fudan.edu.cn
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
After we drop i_data sem, we need to reload the ext4_ext_path
structure since the extent tree can change once i_data_sem is
released.
This addresses the BUG:
[52117.465187] ------------[ cut here ]------------
[52117.465686] kernel BUG at fs/ext4/extents.c:1756!
...
[52117.478306] Call Trace:
[52117.478565] ext4_ext_shift_extents+0x3ee/0x710
[52117.479020] ext4_fallocate+0x139c/0x1b40
[52117.479405] ? __do_sys_newfstat+0x6b/0x80
[52117.479805] vfs_fallocate+0x151/0x4b0
[52117.480177] ksys_fallocate+0x4a/0xa0
[52117.480533] __x64_sys_fallocate+0x22/0x30
[52117.480930] do_syscall_64+0x35/0x80
[52117.481277] entry_SYSCALL_64_after_hwframe+0x44/0xae
[52117.481769] RIP: 0033:0x7fa062f855ca
Cc: stable@kernel.org
Link: https://lore.kernel.org/r/20210903062748.4118886-4-yangerkun@huawei.com
Signed-off-by: yangerkun <yangerkun@huawei.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Like ext4_ext_rm_leaf, we can ensure that there are enough credits
before every call that will consume credits. As part of this fix we
fold the functionality of ext4_access_path() into
ext4_ext_shift_path_extents(). This change is needed as a preparation
for the next bugfix patch.
Cc: stable@kernel.org
Link: https://lore.kernel.org/r/20210903062748.4118886-3-yangerkun@huawei.com
Signed-off-by: yangerkun <yangerkun@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
The debuginfo for binsearch want to show the left/middle/right extent
while the process search for the goal block. However we show this info
after we change right or left.
Link: https://lore.kernel.org/r/20210903062748.4118886-2-yangerkun@huawei.com
Signed-off-by: yangerkun <yangerkun@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Ext4 file system has default lazy inode table initialization setup once
it is mounted. However, it has issue on computing the next schedule time
that makes the timeout same amount in jiffies but different real time in
secs if with various HZ values. Therefore, fix by measuring the current
time in a more granular unit nanoseconds and make the next schedule time
independent of the HZ value.
Fixes: bfff68738f ("ext4: add support for lazy inode table initialization")
Signed-off-by: Shaoying Xu <shaoyi@amazon.com>
Cc: stable@vger.kernel.org
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Link: https://lore.kernel.org/r/20210902164412.9994-2-shaoyi@amazon.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This reverts commit 948ca5f30e.
Two crash reports from users running variations on 5.15-rc4 kernels
suggest that it is premature to enforce the state assertion in the
original commit. Both crashes were triggered by BUG calls in that
code, indicating that under some rare circumstance the buffer head
state did not match a delayed allocated block at the time the
block was written out. No reproducer is available. Resolving this
problem will require more time than remains in the current release
cycle, so reverting the original patch for the time being is necessary
to avoid any instability it may cause.
Signed-off-by: Eric Whitney <enwlinux@gmail.com>
Link: https://lore.kernel.org/r/20211012171901.5352-1-enwlinux@gmail.com
Fixes: 948ca5f30e ("ext4: enforce buffer head state assertion in ext4_da_map_blocks")
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@kernel.org
In commit b212921b13 ("elf: don't use MAP_FIXED_NOREPLACE for elf
executable mappings") we still leave MAP_FIXED_NOREPLACE in place for
load_elf_interp.
Unfortunately, this will cause kernel to fail to start with:
1 (init): Uhuuh, elf segment at 00003ffff7ffd000 requested but the memory is mapped already
Failed to execute /init (error -17)
The reason is that the elf interpreter (ld.so) has overlapping segments.
readelf -l ld-2.31.so
Program Headers:
Type Offset VirtAddr PhysAddr
FileSiz MemSiz Flags Align
LOAD 0x0000000000000000 0x0000000000000000 0x0000000000000000
0x000000000002c94c 0x000000000002c94c R E 0x10000
LOAD 0x000000000002dae0 0x000000000003dae0 0x000000000003dae0
0x00000000000021e8 0x0000000000002320 RW 0x10000
LOAD 0x000000000002fe00 0x000000000003fe00 0x000000000003fe00
0x00000000000011ac 0x0000000000001328 RW 0x10000
The reason for this problem is the same as described in commit
ad55eac74f ("elf: enforce MAP_FIXED on overlaying elf segments").
Not only executable binaries, elf interpreters (e.g. ld.so) can have
overlapping elf segments, so we better drop MAP_FIXED_NOREPLACE and go
back to MAP_FIXED in load_elf_interp.
Fixes: 4ed2863951 ("fs, elf: drop MAP_FIXED usage from elf_map")
Cc: <stable@vger.kernel.org> # v4.19
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Hocko <mhocko@suse.com>
Signed-off-by: Chen Jingwen <chenjingwen6@huawei.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
allocation. Also fix error handling code paths in ext4_dx_readdir()
and ext4_fill_super(). Finally, avoid a grabbing a journal head in
the delayed allocation write in the common cases where we are
overwriting an pre-existing block or appending to an inode.
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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:
"Fix a number of ext4 bugs in fast_commit, inline data, and delayed
allocation.
Also fix error handling code paths in ext4_dx_readdir() and
ext4_fill_super().
Finally, avoid a grabbing a journal head in the delayed allocation
write in the common cases where we are overwriting a pre-existing
block or appending to an inode"
* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: recheck buffer uptodate bit under buffer lock
ext4: fix potential infinite loop in ext4_dx_readdir()
ext4: flush s_error_work before journal destroy in ext4_fill_super
ext4: fix loff_t overflow in ext4_max_bitmap_size()
ext4: fix reserved space counter leakage
ext4: limit the number of blocks in one ADD_RANGE TLV
ext4: enforce buffer head state assertion in ext4_da_map_blocks
ext4: remove extent cache entries when truncating inline data
ext4: drop unnecessary journal handle in delalloc write
ext4: factor out write end code of inline file
ext4: correct the error path of ext4_write_inline_data_end()
ext4: check and update i_disksize properly
ext4: add error checking to ext4_ext_replay_set_iblocks()
The objtool warning that the kvm instruction emulation code triggered
wasn't very useful:
arch/x86/kvm/emulate.o: warning: objtool: __ex_table+0x4: don't know how to handle reloc symbol type: kvm_fastop_exception
in that it helpfully tells you which symbol name it had trouble figuring
out the relocation for, but it doesn't actually say what the unknown
symbol type was that triggered it all.
In this case it was because of missing type information (type 0, aka
STT_NOTYPE), but on the whole it really should just have printed that
out as part of the message.
Because if this warning triggers, that's very much the first thing you
want to know - why did reloc2sec_off() return failure for that symbol?
So rather than just saying you can't handle some type of symbol without
saying what the type _was_, just print out the type number too.
Fixes: 24ff652573 ("objtool: Teach get_alt_entry() about more relocation types")
Link: https://lore.kernel.org/lkml/CAHk-=wiZwq-0LknKhXN4M+T8jbxn_2i9mcKpO+OaBSSq_Eh7tg@mail.gmail.com/
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The recent change to make objtool aware of more symbol relocation types
(commit 24ff652573: "objtool: Teach get_alt_entry() about more
relocation types") also added another check, and resulted in this
objtool warning when building kvm on x86:
arch/x86/kvm/emulate.o: warning: objtool: __ex_table+0x4: don't know how to handle reloc symbol type: kvm_fastop_exception
The reason seems to be that kvm_fastop_exception() is marked as a global
symbol, which causes the relocation to ke kept around for objtool. And
at the same time, the kvm_fastop_exception definition (which is done as
an inline asm statement) doesn't actually set the type of the global,
which then makes objtool unhappy.
The minimal fix is to just not mark kvm_fastop_exception as being a
global symbol. It's only used in that one compilation unit anyway, so
it was always pointless. That's how all the other local exception table
labels are done.
I'm not entirely happy about the kinds of games that the kvm code plays
with doing its own exception handling, and the fact that it confused
objtool is most definitely a symptom of the code being a bit too subtle
and ad-hoc. But at least this trivial one-liner makes objtool no longer
upset about what is going on.
Fixes: 24ff652573 ("objtool: Teach get_alt_entry() about more relocation types")
Link: https://lore.kernel.org/lkml/CAHk-=wiZwq-0LknKhXN4M+T8jbxn_2i9mcKpO+OaBSSq_Eh7tg@mail.gmail.com/
Cc: Borislav Petkov <bp@suse.de>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Vitaly Kuznetsov <vkuznets@redhat.com>
Cc: Wanpeng Li <wanpengli@tencent.com>
Cc: Jim Mattson <jmattson@google.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Here are some small misc driver fixes for 5.15-rc4. They are in two
"groups":
- ipack driver fixes for issues found by Johan Hovold
- interconnect driver fixes for reported problems
All of these have been in linux-next for a while with no reported
issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are some small misc driver fixes for 5.15-rc4. They are in two
"groups":
- ipack driver fixes for issues found by Johan Hovold
- interconnect driver fixes for reported problems
All of these have been in linux-next for a while with no reported
issues"
* tag 'char-misc-5.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
ipack: ipoctal: fix module reference leak
ipack: ipoctal: fix missing allocation-failure check
ipack: ipoctal: fix tty-registration error handling
ipack: ipoctal: fix tty registration race
ipack: ipoctal: fix stack information leak
interconnect: qcom: sdm660: Add missing a2noc qos clocks
dt-bindings: interconnect: sdm660: Add missing a2noc qos clocks
interconnect: qcom: sdm660: Correct NOC_QOS_PRIORITY shift and mask
interconnect: qcom: sdm660: Fix id of slv_cnoc_mnoc_cfg
Here are some driver core and kernfs fixes for reported issues for
5.15-rc4. These fixes include:
- kernfs positive dentry bugfix
- debugfs_create_file_size error path fix
- cpumask sysfs file bugfix to preserve the user/kernel abi (has
been reported multiple times.)
- devlink fixes for mdiobus devices as reported by the subsystem
maintainers.
Also included in here are some devlink debugging changes to make it
easier for people to report problems when asked. They have already
helped with the mdiobus and other subsystems reporting issues.
All of these have been linux-next for a while with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-5.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core fixes from Greg KH:
"Here are some driver core and kernfs fixes for reported issues for
5.15-rc4. These fixes include:
- kernfs positive dentry bugfix
- debugfs_create_file_size error path fix
- cpumask sysfs file bugfix to preserve the user/kernel abi (has been
reported multiple times.)
- devlink fixes for mdiobus devices as reported by the subsystem
maintainers.
Also included in here are some devlink debugging changes to make it
easier for people to report problems when asked. They have already
helped with the mdiobus and other subsystems reporting issues.
All of these have been linux-next for a while with no reported issues"
* tag 'driver-core-5.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
kernfs: also call kernfs_set_rev() for positive dentry
driver core: Add debug logs when fwnode links are added/deleted
driver core: Create __fwnode_link_del() helper function
driver core: Set deferred probe reason when deferred by driver core
net: mdiobus: Set FWNODE_FLAG_NEEDS_CHILD_BOUND_ON_ADD for mdiobus parents
driver core: fw_devlink: Add support for FWNODE_FLAG_NEEDS_CHILD_BOUND_ON_ADD
driver core: fw_devlink: Improve handling of cyclic dependencies
cpumask: Omit terminating null byte in cpumap_print_{list,bitmask}_to_buf
debugfs: debugfs_create_file_size(): use IS_ERR to check for error
- Make sure tunable_scaling buffer is null-terminated after an update in sysfs
- Fix LTP named regression due to cgroup list ordering
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Merge tag 'sched_urgent_for_v5.15_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Borislav Petkov:
- Tell the compiler to always inline is_percpu_thread()
- Make sure tunable_scaling buffer is null-terminated after an update
in sysfs
- Fix LTP named regression due to cgroup list ordering
* tag 'sched_urgent_for_v5.15_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched: Always inline is_percpu_thread()
sched/fair: Null terminate buffer when updating tunable_scaling
sched/fair: Add ancestors of unthrottled undecayed cfs_rq
- Update the event constraints for Icelake
- Make sure the active time of an event is updated even for inactive events
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Merge tag 'perf_urgent_for_v5.15_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Borislav Petkov:
- Make sure the destroy callback is reset when a event initialization
fails
- Update the event constraints for Icelake
- Make sure the active time of an event is updated even for inactive
events
* tag 'perf_urgent_for_v5.15_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
perf/core: fix userpage->time_enabled of inactive events
perf/x86/intel: Update event constraints for ICX
perf/x86: Reset destroy callback on event init failure
which remove section symbols now
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Merge tag 'objtool_urgent_for_v5.15_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool fix from Borislav Petkov:
- Handle symbol relocations properly due to changes in the toolchains
which remove section symbols now
* tag 'objtool_urgent_for_v5.15_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
objtool: Teach get_alt_entry() about more relocation types
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Merge tag '5.15-rc3-ksmbd-fixes' of git://git.samba.org/ksmbd
Pull ksmbd server fixes from Steve French:
"Eleven fixes for the ksmbd kernel server, mostly security related:
- an important fix for disabling weak NTLMv1 authentication
- seven security (improved buffer overflow checks) fixes
- fix for wrong infolevel struct used in some getattr/setattr paths
- two small documentation fixes"
* tag '5.15-rc3-ksmbd-fixes' of git://git.samba.org/ksmbd:
ksmbd: missing check for NULL in convert_to_nt_pathname()
ksmbd: fix transform header validation
ksmbd: add buffer validation for SMB2_CREATE_CONTEXT
ksmbd: add validation in smb2 negotiate
ksmbd: add request buffer validation in smb2_set_info
ksmbd: use correct basic info level in set_file_basic_info()
ksmbd: remove NTLMv1 authentication
ksmbd: fix documentation for 2 functions
MAINTAINERS: rename cifs_common to smbfs_common in cifs and ksmbd entry
ksmbd: fix invalid request buffer access in compound
ksmbd: remove RFC1002 check in smb2 request
Five fairly minor fixes and spelling updates, all in drivers. Even
though the ufs fix is in tracing, it's a potentially exploitable use
beyond end of array bug.
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 fixes from James Bottomley:
"Five fairly minor fixes and spelling updates, all in drivers. Even
though the ufs fix is in tracing, it's a potentially exploitable use
beyond end of array bug"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: csiostor: Add module softdep on cxgb4
scsi: qla2xxx: Fix excessive messages during device logout
scsi: virtio_scsi: Fix spelling mistake "Unsupport" -> "Unsupported"
scsi: ses: Fix unsigned comparison with less than zero
scsi: ufs: Fix illegal offset in UPIU event trace
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Merge tag 'block-5.15-2021-10-01' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"A few block fixes for this release:
- Revert a BFQ commit that causes breakage for people. Unfortunately
it was auto-selected for stable as well, so now 5.14.7 suffers from
it too. Hopefully stable will pick up this revert quickly too, so
we can remove the issue on that end as well.
- Add a quirk for Apple NVMe controllers, which due to their
non-compliance broke due to the introduction of command sequences
(Keith)
- Use shifts in nbd, fixing a __divdi3 issue (Nick)"
* tag 'block-5.15-2021-10-01' of git://git.kernel.dk/linux-block:
nbd: use shifts rather than multiplies
Revert "block, bfq: honor already-setup queue merges"
nvme: add command id quirk for apple controllers
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Merge tag 'io_uring-5.15-2021-10-01' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
"Two fixes in here:
- The signal issue that was discussed start of this week (me).
- Kill dead fasync support in io_uring. Looks like it was broken
since io_uring was initially merged, and given that nobody has ever
complained about it, let's just kill it (Pavel)"
* tag 'io_uring-5.15-2021-10-01' of git://git.kernel.dk/linux-block:
io_uring: kill fasync
io-wq: exclusively gate signal based exit on get_signal() return
- Fix a regression that caused the sysfs ABI for pmem block devices to
not be registered. This fails the nvdimm unit tests and dax xfstests.
- Fix numa node lookups for dax-kmem memory (device-dax memory assigned
to the page allocator) on ARM64.
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Merge tag 'libnvdimm-fixes-5.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm fixes from Dan Williams:
"A fix for a regression added this cycle in the pmem driver, and for a
long standing bug for failed NUMA node lookups on ARM64.
This has appeared in -next for several days with no reported issues.
Summary:
- Fix a regression that caused the sysfs ABI for pmem block devices
to not be registered. This fails the nvdimm unit tests and dax
xfstests.
- Fix numa node lookups for dax-kmem memory (device-dax memory
assigned to the page allocator) on ARM64"
* tag 'libnvdimm-fixes-5.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
nvdimm/pmem: fix creating the dax group
ACPI: NFIT: Use fallback node id when numa info in NFIT table is incorrect
In cachefiles_mark_object_buried, the dentry in question may not have an
owner, and thus our cachefiles_object pointer may be NULL when calling
the tracepoint, in which case we will also not have a valid debug_id to
print in the tracepoint.
Check for NULL object in the tracepoint and if so, just set debug_id to
MAX_UINT as was done in 2908f5e101 ("fscache: Add a cookie debug ID
and use that in traces").
This fixes the following oops:
FS-Cache: Cache "mycache" added (type cachefiles)
CacheFiles: File cache on vdc registered
...
Workqueue: fscache_object fscache_object_work_func [fscache]
RIP: 0010:trace_event_raw_event_cachefiles_mark_buried+0x4e/0xa0 [cachefiles]
....
Call Trace:
cachefiles_mark_object_buried+0xa5/0xb0 [cachefiles]
cachefiles_bury_object+0x270/0x430 [cachefiles]
cachefiles_walk_to_object+0x195/0x9c0 [cachefiles]
cachefiles_lookup_object+0x5a/0xc0 [cachefiles]
fscache_look_up_object+0xd7/0x160 [fscache]
fscache_object_work_func+0xb2/0x340 [fscache]
process_one_work+0x1f1/0x390
worker_thread+0x53/0x3e0
kthread+0x127/0x150
Fixes: 2908f5e101 ("fscache: Add a cookie debug ID and use that in traces")
Signed-off-by: Dave Wysochanski <dwysocha@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: linux-cachefs@redhat.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
5.15-rc1 crashes with blank screen when booting up on two ThinkPads
using i915. Bisections converge convincingly, but arrive at different
and suprising "culprits", none of them the actual culprit.
netconsole (with init_netconsole() hacked to call i915_init() when
logging has started, instead of by module_init()) tells the story:
kernel BUG at drivers/gpu/drm/i915/i915_sw_fence.c:245!
with RSI: ffffffff814d408b pointing to sw_fence_dummy_notify().
I've been building with CONFIG_CC_OPTIMIZE_FOR_SIZE=y, and that
function needs to be 4-byte aligned.
Fixes: 62eaf0ae21 ("drm/i915/guc: Support request cancellation")
Signed-off-by: Hugh Dickins <hughd@google.com>
Tested-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
If driver read tmp value sufficient for
(tmp & 0x08) && (!(tmp & 0x80)) && ((tmp & 0x7) == ((tmp >> 4) & 0x7))
from device then Null pointer dereference occurs.
(It is possible if tmp = 0b0xyz1xyz, where same literals mean same numbers)
Also lm75[] does not serve a purpose anymore after switching to
devm_i2c_new_dummy_device() in w83791d_detect_subclients().
The patch fixes possible NULL pointer dereference by removing lm75[].
Found by Linux Driver Verification project (linuxtesting.org).
Cc: stable@vger.kernel.org
Signed-off-by: Nadezda Lutovinova <lutovinova@ispras.ru>
Link: https://lore.kernel.org/r/20210921155153.28098-3-lutovinova@ispras.ru
[groeck: Dropped unnecessary continuation lines, fixed multi-line alignments]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
If driver read val value sufficient for
(val & 0x08) && (!(val & 0x80)) && ((val & 0x7) == ((val >> 4) & 0x7))
from device then Null pointer dereference occurs.
(It is possible if tmp = 0b0xyz1xyz, where same literals mean same numbers)
Also lm75[] does not serve a purpose anymore after switching to
devm_i2c_new_dummy_device() in w83791d_detect_subclients().
The patch fixes possible NULL pointer dereference by removing lm75[].
Found by Linux Driver Verification project (linuxtesting.org).
Cc: stable@vger.kernel.org
Signed-off-by: Nadezda Lutovinova <lutovinova@ispras.ru>
Link: https://lore.kernel.org/r/20210921155153.28098-2-lutovinova@ispras.ru
[groeck: Dropped unnecessary continuation lines, fixed multipline alignment]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
If driver read val value sufficient for
(val & 0x08) && (!(val & 0x80)) && ((val & 0x7) == ((val >> 4) & 0x7))
from device then Null pointer dereference occurs.
(It is possible if tmp = 0b0xyz1xyz, where same literals mean same numbers)
Also lm75[] does not serve a purpose anymore after switching to
devm_i2c_new_dummy_device() in w83791d_detect_subclients().
The patch fixes possible NULL pointer dereference by removing lm75[].
Found by Linux Driver Verification project (linuxtesting.org).
Cc: stable@vger.kernel.org
Signed-off-by: Nadezda Lutovinova <lutovinova@ispras.ru>
Link: https://lore.kernel.org/r/20210921155153.28098-1-lutovinova@ispras.ru
[groeck: Dropped unnecessary continuation lines, fixed multi-line alignment]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add missed attribute for reading POUT from page 1.
It is supported by device, but has been missed in initial commit.
Fixes: 2c6fcbb211 ("hwmon: (pmbus) Add support for MPS Multi-phase mp2975 controller")
Signed-off-by: Vadim Pasternak <vadimp@nvidia.com>
Link: https://lore.kernel.org/r/20210927070740.2149290-1-vadimp@nvidia.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
The bytes for max_power_out from the ibm-cffps devices differ in byte
order for some power supplies.
The Witherspoon power supply returns the bytes in MSB/LSB order.
The Rainier power supply returns the bytes in LSB/MSB order.
The Witherspoon power supply uses version cffps1. The Rainier power
supply should use version cffps2. If version is cffps1, swap the bytes
before output to max_power_out.
Tested:
Witherspoon before: 3148. Witherspoon after: 3148.
Rainier before: 53255. Rainier after: 2000.
Signed-off-by: Brandon Wyman <bjwyman@gmail.com>
Reviewed-by: Eddie James <eajames@linux.ibm.com>
Link: https://lore.kernel.org/r/20210928205051.1222815-1-bjwyman@gmail.com
[groeck: Replaced yoda programming]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
The P10 (temp sensor version 0x10) doesn't do the same VRM status
reporting that was used on P9. It just reports the temperature, so
drop the check for VRM fru type in the sysfs show function, and don't
set the name to "alarm".
Fixes: db4919ec86 ("hwmon: (occ) Add new temperature sensor type")
Signed-off-by: Eddie James <eajames@linux.ibm.com>
Link: https://lore.kernel.org/r/20210929153604.14968-1-eajames@linux.ibm.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Because Rui is now going to focus on work that is not related to the
maintenance of the thermal subsystem in the kernel, Rafael will start
to help Daniel with handling the development process as a new member
of the thermal maintainers team. Rui will continue to review patches
in that area.
The thermal development process flow will change so that the material
from the thermal git tree will be merged into the thermal branch of
the linux-pm.git tree before going into the mainline.
Update the information in MAINTAINERS accordingly.
Signed-off-by: Rafael J. Wysocki <rafael@kernel.org>
Acked-by: Zhang Rui <rui.zhang@intel.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull more kvm fixes from Paolo Bonzini:
"Small x86 fixes"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: selftests: Ensure all migrations are performed when test is affined
KVM: x86: Swap order of CPUID entry "index" vs. "significant flag" checks
ptp: Fix ptp_kvm_getcrosststamp issue for x86 ptp_kvm
x86/kvmclock: Move this_cpu_pvti into kvmclock.h
selftests: KVM: Don't clobber XMM register when read
KVM: VMX: Fix a TSX_CTRL_CPUID_CLEAR field mask issue
amdgpu, i915, tegra, and one exynos driver fix
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Merge tag 'drm-fixes-2021-10-01' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Daniel Vetter:
"Dave is out on a long w/e, should be back next week.
Nothing nefarious, just a bunch of driver fixes: amdgpu, i915, tegra,
and one exynos driver fix"
* tag 'drm-fixes-2021-10-01' of git://anongit.freedesktop.org/drm/drm:
drm/amdgpu: force exit gfxoff on sdma resume for rmb s0ix
drm/amdgpu: check tiling flags when creating FB on GFX8-
drm/amd/display: Pass PCI deviceid into DC
drm/amd/display: initialize backlight_ramping_override to false
drm/amdgpu: correct initial cp_hqd_quantum for gfx9
drm/amd/display: Fix Display Flicker on embedded panels
drm/amdgpu: fix gart.bo pin_count leak
drm/i915: Remove warning from the rps worker
drm/i915/request: fix early tracepoints
drm/i915/guc, docs: Fix pdfdocs build error by removing nested grid
gpu: host1x: Plug potential memory leak
gpu/host1x: fence: Make spinlock static
drm/tegra: uapi: Fix wrong mapping end address in case of disabled IOMMU
drm/tegra: dc: Remove unused variables
drm/exynos: Make use of the helper function devm_platform_ioremap_resource()
drm/i915/gvt: fix the usage of ww lock in gvt scheduler.
We have never supported fasync properly, it would only fire when there
is something polling io_uring making it useless. The original support came
in through the initial io_uring merge for 5.1. Since it's broken and
nobody has reported it, get rid of the fasync bits.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/2f7ca3d344d406d34fa6713824198915c41cea86.1633080236.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Including:
- Two fixes for the new Apple DART driver to fix a kernel panic
and a stale data usage issue
- Intel VT-d fix for how PCI device ids are printed
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Merge tag 'iommu-fixes-v5.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull iommu fixes from Joerg Roedel:
- Two fixes for the new Apple DART driver to fix a kernel panic and a
stale data usage issue
- Intel VT-d fix for how PCI device ids are printed
* tag 'iommu-fixes-v5.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu/dart: Clear sid2group entry when a group is freed
iommu/vt-d: Drop "0x" prefix from PCI bus & device addresses
iommu/dart: Remove iommu_flush_ops
- Use devm_platform_ioremap_resource() helper function instead of old
one.
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Merge tag 'exynos-drm-fixes-for-v5.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-fixes
One cleanup
- Use devm_platform_ioremap_resource() helper function instead of old
one.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Inki Dae <inki.dae@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210928074158.2942-1-inki.dae@samsung.com
