IF YOU WOULD LIKE TO GET AN ACCOUNT, please write an
email to Administrator. User accounts are meant only to access repo
and report issues and/or generate pull requests.
This is a purpose-specific Git hosting for
BaseALT
projects. Thank you for your understanding!
Только зарегистрированные пользователи имеют доступ к сервису!
Для получения аккаунта, обратитесь к администратору.
Testing with the fscache overhaul has triggered some lockdep warnings
about circular lock dependencies involving page_mkwrite and the
mmap_lock. It'd be better to do the "real work" without the mmap lock
being held.
Change the skip_checking_caps parameter in __ceph_put_cap_refs to an
enum, and use that to determine whether to queue check_caps, do it
synchronously or not at all. Change ceph_page_mkwrite to do a
ceph_put_cap_refs_async().
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Add a generic function for taking an inode reference, setting the I_WORK
bit and queueing i_work. Turn the ceph_queue_* functions into static
inline wrappers that pass in the right bit.
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
A primary reason for skipping ceph_check_caps after putting the
references was to avoid the locking in ceph_check_caps during a
reconnect. __ceph_put_cap_refs can still call ceph_flush_snaps in that
case though, and that takes many of the same inconvenient locks.
Fix the logic in __ceph_put_cap_refs to skip flushing snaps when the
skip_checking_caps flag is set.
Fixes: e64f44a884 ("ceph: skip checking caps when session reconnecting and releasing reqs")
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
-----BEGIN PGP SIGNATURE-----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=7w6G
-----END PGP SIGNATURE-----
Merge tag 'for-5.11-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fix from David Sterba:
"A regression fix caused by a refactoring in 5.11.
A corrupted superblock wouldn't be detected by checksum verification
due to wrongly placed initialization of the checksum length, thus
making memcmp always work"
* tag 'for-5.11-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: initialize fs_info::csum_size earlier in open_ctree
-----BEGIN PGP SIGNATURE-----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=vJKS
-----END PGP SIGNATURE-----
Merge tag '5.11-rc7-smb3-github' of git://github.com/smfrench/smb3-kernel
Pull cifs fixes from Steve French:
"Four small smb3 fixes to the new mount API (including a particularly
important one for DFS links).
These were found in testing this week of additional DFS scenarios, and
a user testing of an apache container problem"
* tag '5.11-rc7-smb3-github' of git://github.com/smfrench/smb3-kernel:
cifs: Set CIFS_MOUNT_USE_PREFIX_PATH flag on setting cifs_sb->prepath.
cifs: In the new mount api we get the full devname as source=
cifs: do not disable noperm if multiuser mount option is not provided
cifs: fix dfs-links
-----BEGIN PGP SIGNATURE-----
iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAmAmi4wQHGF4Ym9lQGtl
cm5lbC5kawAKCRD301j7KXHgplrtD/9BTWebvU17q/9grBrZsIyfCB9UOoPzOSwd
4dY1trOnFk91vAVM2I8RLkUSYS6UHPSEE3Xa+jVkNOBWy0W/8RJtQpqQTVjoY8zn
jMrvPHTyW5tc/rniG5FNsCilyDEOBZY4pIpJqwXpj/Ez14D+mb+A3nTCTdwat4sU
zdSVLcGJU2O7RJx1yLiJLvqct1dbZI8axSd/gEOCVhxKgP6UVoYfjkjYm9hCU4et
y7OzRfvPTb0N03EVoA6XeVke7sDK9cJLySbcwiGczCmPkKEJmFOyJP2xWSlE5Z91
UMYeg4pOSg3tHYvPFuUShjzaYJTKAvzObHomyPjRCve+847AcqPpdoHaYQASUXvF
ORs8vXkgjyd9lyrBa+8oqWYvXYj/3M05qPO2LhfSyDbwzEzBAmaAyf0JIr9mvem+
7mgJ6R7uTCqPt0FXzxIfNnWSq/Rtiyuw+DP/y2sgYMDRjg70hyFhhud9K67hMplP
wc1UAp9vD3PalTQG3fHIJycWIXd6A/RxBM+KbXdIyi6aqd6iHgf2Plz5CI2Orz7W
sMPlG2IYfwwKDyNf9LE+sXmrDbfM3wdSQGr3BXmMXBRNWicxD6P4IM8FbsVemrt1
QZ77zt7xPtGY3CMabYPAycbVxdf52TofcTvp3Z5gEWUEaQw1j681wsBF/V3Btnk/
704EKKZraw==
=y7ZL
-----END PGP SIGNATURE-----
Merge tag 'io_uring-5.11-2021-02-12' of git://git.kernel.dk/linux-block
Pull io_uring fix from Jens Axboe:
"Revert of a patch from this release that caused a regression"
* tag 'io_uring-5.11-2021-02-12' of git://git.kernel.dk/linux-block:
Revert "io_uring: don't take fs for recvmsg/sendmsg"
User reported that btrfs-progs misc-tests/028-superblock-recover fails:
[TEST/misc] 028-superblock-recover
unexpected success: mounted fs with corrupted superblock
test failed for case 028-superblock-recover
The test case expects that a broken image with bad superblock will be
rejected to be mounted. However, the test image just passed csum check
of superblock and was successfully mounted.
Commit 55fc29bed8 ("btrfs: use cached value of fs_info::csum_size
everywhere") replaces all calls to btrfs_super_csum_size by
fs_info::csum_size. The calls include the place where fs_info->csum_size
is not initialized. So btrfs_check_super_csum() passes because memcmp()
with len 0 always returns 0.
Fix it by caching csum size in btrfs_fs_info::csum_size once we know the
csum type in superblock is valid in open_ctree().
Link: https://github.com/kdave/btrfs-progs/issues/250
Fixes: 55fc29bed8 ("btrfs: use cached value of fs_info::csum_size everywhere")
Signed-off-by: Su Yue <l@damenly.su>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
While debugging another issue today, Steve and I noticed that if a
subdir for a file share is already mounted on the client, any new
mount of any other subdir (or the file share root) of the same share
results in sharing the cifs superblock, which e.g. can result in
incorrect device name.
While setting prefix path for the root of a cifs_sb,
CIFS_MOUNT_USE_PREFIX_PATH flag should also be set.
Without it, prepath is not even considered in some places,
and output of "mount" and various /proc/<>/*mount* related
options can be missing part of the device name.
Signed-off-by: Shyam Prasad N <sprasad@microsoft.com>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
so we no longer need to handle or parse the UNC= and prefixpath=
options that mount.cifs are generating.
This also fixes a bug in the mount command option where the devname
would be truncated into just //server/share because we were looking
at the truncated UNC value and not the full path.
I.e. in the mount command output the devive //server/share/path
would show up as just //server/share
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Reviewed-by: Shyam Prasad N <nspmangalore@gmail.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
This reverts commit 10cad2c40d.
Petr reports that with this commit in place, io_uring fails the chroot
test (CVE-202-29373). We do need to retain ->fs for send/recvmsg, so
revert this commit.
Reported-by: Petr Vorel <pvorel@suse.cz>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Since 5.10, splice() or sendfile() to NILFS2 return EINVAL. This was
caused by commit 36e2c7421f ("fs: don't allow splice read/write
without explicit ops").
This patch initializes the splice_write field in file_operations, like
most file systems do, to restore the functionality.
Link: https://lkml.kernel.org/r/1612784101-14353-1-git-send-email-konishi.ryusuke@gmail.com
Signed-off-by: Joachim Henke <joachim.henke@t-systems.com>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Tested-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Cc: <stable@vger.kernel.org> [5.10+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fixes small regression in implementation of new mount API.
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Reported-by: Hyunchul Lee <hyc.lee@gmail.com>
Tested-by: Hyunchul Lee <hyc.lee@gmail.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
As with s390, alpha is a 64-bit architecture with a 32-bit ino_t. With
CONFIG_TMPFS_INODE64=y tmpfs mounts will get 64-bit inode numbers and
display "inode64" in the mount options, whereas passing "inode64" in the
mount options will fail. This leads to erroneous behaviours such as
this:
# mkdir mnt
# mount -t tmpfs nodev mnt
# mount -o remount,rw mnt
mount: /home/ubuntu/mnt: mount point not mounted or bad option.
Prevent CONFIG_TMPFS_INODE64 from being selected on alpha.
Link: https://lkml.kernel.org/r/20210208215726.608197-1-seth.forshee@canonical.com
Fixes: ea3271f719 ("tmpfs: support 64-bit inums per-sb")
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Acked-by: Hugh Dickins <hughd@google.com>
Cc: Chris Down <chris@chrisdown.name>
Cc: Amir Goldstein <amir73il@gmail.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Cc: <stable@vger.kernel.org> [5.9+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Currently there is an assumption in tmpfs that 64-bit architectures also
have a 64-bit ino_t. This is not true on s390 which has a 32-bit ino_t.
With CONFIG_TMPFS_INODE64=y tmpfs mounts will get 64-bit inode numbers
and display "inode64" in the mount options, but passing the "inode64"
mount option will fail. This leads to the following behavior:
# mkdir mnt
# mount -t tmpfs nodev mnt
# mount -o remount,rw mnt
mount: /home/ubuntu/mnt: mount point not mounted or bad option.
As mount sees "inode64" in the mount options and thus passes it in the
options for the remount.
So prevent CONFIG_TMPFS_INODE64 from being selected on s390.
Link: https://lkml.kernel.org/r/20210205230620.518245-1-seth.forshee@canonical.com
Fixes: ea3271f719 ("tmpfs: support 64-bit inums per-sb")
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Acked-by: Hugh Dickins <hughd@google.com>
Cc: Chris Down <chris@chrisdown.name>
Cc: Hugh Dickins <hughd@google.com>
Cc: Amir Goldstein <amir73il@gmail.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: <stable@vger.kernel.org> [5.9+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Sysbot has reported a warning where a kmalloc() attempt exceeds the
maximum limit. This has been identified as corruption of the xattr_ids
count when reading the xattr id lookup table.
This patch adds a number of additional sanity checks to detect this
corruption and others.
1. It checks for a corrupted xattr index read from the inode. This could
be because the metadata block is uncompressed, or because the
"compression" bit has been corrupted (turning a compressed block
into an uncompressed block). This would cause an out of bounds read.
2. It checks against corruption of the xattr_ids count. This can either
lead to the above kmalloc failure, or a smaller than expected
table to be read.
3. It checks the contents of the index table for corruption.
[phillip@squashfs.org.uk: fix checkpatch issue]
Link: https://lkml.kernel.org/r/270245655.754655.1612770082682@webmail.123-reg.co.uk
Link: https://lkml.kernel.org/r/20210204130249.4495-5-phillip@squashfs.org.uk
Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
Reported-by: syzbot+2ccea6339d368360800d@syzkaller.appspotmail.com
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Sysbot has reported an "slab-out-of-bounds read" error which has been
identified as being caused by a corrupted "ino_num" value read from the
inode. This could be because the metadata block is uncompressed, or
because the "compression" bit has been corrupted (turning a compressed
block into an uncompressed block).
This patch adds additional sanity checks to detect this, and the
following corruption.
1. It checks against corruption of the inodes count. This can either
lead to a larger table to be read, or a smaller than expected
table to be read.
In the case of a too large inodes count, this would often have been
trapped by the existing sanity checks, but this patch introduces
a more exact check, which can identify too small values.
2. It checks the contents of the index table for corruption.
[phillip@squashfs.org.uk: fix checkpatch issue]
Link: https://lkml.kernel.org/r/527909353.754618.1612769948607@webmail.123-reg.co.uk
Link: https://lkml.kernel.org/r/20210204130249.4495-4-phillip@squashfs.org.uk
Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
Reported-by: syzbot+04419e3ff19d2970ea28@syzkaller.appspotmail.com
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Sysbot has reported a number of "slab-out-of-bounds reads" and
"use-after-free read" errors which has been identified as being caused
by a corrupted index value read from the inode. This could be because
the metadata block is uncompressed, or because the "compression" bit has
been corrupted (turning a compressed block into an uncompressed block).
This patch adds additional sanity checks to detect this, and the
following corruption.
1. It checks against corruption of the ids count. This can either
lead to a larger table to be read, or a smaller than expected
table to be read.
In the case of a too large ids count, this would often have been
trapped by the existing sanity checks, but this patch introduces
a more exact check, which can identify too small values.
2. It checks the contents of the index table for corruption.
Link: https://lkml.kernel.org/r/20210204130249.4495-3-phillip@squashfs.org.uk
Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
Reported-by: syzbot+b06d57ba83f604522af2@syzkaller.appspotmail.com
Reported-by: syzbot+c021ba012da41ee9807c@syzkaller.appspotmail.com
Reported-by: syzbot+5024636e8b5fd19f0f19@syzkaller.appspotmail.com
Reported-by: syzbot+bcbc661df46657d0fa4f@syzkaller.appspotmail.com
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Patch series "Squashfs: fix BIO migration regression and add sanity checks".
Patch [1/4] fixes a regression introduced by the "migrate from
ll_rw_block usage to BIO" patch, which has produced a number of
Sysbot/Syzkaller reports.
Patches [2/4], [3/4], and [4/4] fix a number of filesystem corruption
issues which have produced Sysbot reports in the id, inode and xattr
lookup code.
Each patch has been tested against the Sysbot reproducers using the
given kernel configuration. They have the appropriate "Reported-by:"
lines added.
Additionally, all of the reproducer filesystems are indirectly fixed by
patch [4/4] due to the fact they all have xattr corruption which is now
detected there.
Additional testing with other configurations and architectures (32bit,
big endian), and normal filesystems has also been done to trap any
inadvertent regressions caused by the additional sanity checks.
This patch (of 4):
This is a regression introduced by the patch "migrate from ll_rw_block
usage to BIO".
Sysbot/Syskaller has reported a number of "out of bounds writes" and
"unable to handle kernel paging request in squashfs_decompress" errors
which have been identified as a regression introduced by the above
patch.
Specifically, the patch removed the following sanity check
if (length < 0 || length > output->length ||
(index + length) > msblk->bytes_used)
This check did two things:
1. It ensured any reads were not beyond the end of the filesystem
2. It ensured that the "length" field read from the filesystem
was within the expected maximum length. Without this any
corrupted values can over-run allocated buffers.
Link: https://lkml.kernel.org/r/20210204130249.4495-1-phillip@squashfs.org.uk
Link: https://lkml.kernel.org/r/20210204130249.4495-2-phillip@squashfs.org.uk
Fixes: 93e72b3c61 ("squashfs: migrate from ll_rw_block usage to BIO")
Reported-by: syzbot+6fba78f99b9afd4b5634@syzkaller.appspotmail.com
Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
Cc: Philippe Liard <pliard@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This fixes a regression following dfs links that was introduced in the
patch series for the new mount api.
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>
-----BEGIN PGP SIGNATURE-----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=5FIb
-----END PGP SIGNATURE-----
Merge tag '5.11-rc6-smb3' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French:
"Three small smb3 fixes for stable"
* tag '5.11-rc6-smb3' of git://git.samba.org/sfrench/cifs-2.6:
cifs: report error instead of invalid when revalidating a dentry fails
smb3: fix crediting for compounding when only one request in flight
smb3: Fix out-of-bounds bug in SMB2_negotiate()
-----BEGIN PGP SIGNATURE-----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=sGoQ
-----END PGP SIGNATURE-----
Merge tag 'io_uring-5.11-2021-02-05' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
"Two small fixes that should go into 5.11:
- task_work resource drop fix (Pavel)
- identity COW fix (Xiaoguang)"
* tag 'io_uring-5.11-2021-02-05' of git://git.kernel.dk/linux-block:
io_uring: drop mm/files between task_work_submit
io_uring: don't modify identity's files uncess identity is cowed
Assuming
- //HOST/a is mounted on /mnt
- //HOST/b is mounted on /mnt/b
On a slow connection, running 'df' and killing it while it's
processing /mnt/b can make cifs_get_inode_info() returns -ERESTARTSYS.
This triggers the following chain of events:
=> the dentry revalidation fail
=> dentry is put and released
=> superblock associated with the dentry is put
=> /mnt/b is unmounted
This patch makes cifs_d_revalidate() return the error instead of 0
(invalid) when cifs_revalidate_dentry() fails, except for ENOENT (file
deleted) and ESTALE (file recreated).
Signed-off-by: Aurelien Aptel <aaptel@suse.com>
Suggested-by: Shyam Prasad N <nspmangalore@gmail.com>
Reviewed-by: Shyam Prasad N <nspmangalore@gmail.com>
CC: stable@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>
If a new hugetlb page is allocated during fallocate it will not be
marked as active (set_page_huge_active) which will result in a later
isolate_huge_page failure when the page migration code would like to
move that page. Such a failure would be unexpected and wrong.
Only export set_page_huge_active, just leave clear_page_huge_active as
static. Because there are no external users.
Link: https://lkml.kernel.org/r/20210115124942.46403-3-songmuchun@bytedance.com
Fixes: 70c3547e36 (hugetlbfs: add hugetlbfs_fallocate())
Signed-off-by: Muchun Song <songmuchun@bytedance.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Reviewed-by: Oscar Salvador <osalvador@suse.de>
Cc: David Hildenbrand <david@redhat.com>
Cc: Yang Shi <shy828301@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Currently we try to guess if a compound request is going to
succeed waiting for credits or not based on the number of
requests in flight. This approach doesn't work correctly
all the time because there may be only one request in
flight which is going to bring multiple credits satisfying
the compound request.
Change the behavior to fail a request only if there are no requests
in flight at all and proceed waiting for credits otherwise.
Cc: <stable@vger.kernel.org> # 5.1+
Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
Reviewed-by: Tom Talpey <tom@talpey.com>
Reviewed-by: Shyam Prasad N <nspmangalore@gmail.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Since SQPOLL task can be shared and so task_work entries can be a mix of
them, we need to drop mm and files before trying to issue next request.
Cc: stable@vger.kernel.org # 5.10+
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
-----BEGIN PGP SIGNATURE-----
iHUEABYIAB0WIQSQHSd0lITzzeNWNm3h3BK/laaZPAUCYBuyTQAKCRDh3BK/laaZ
PBBhAPwLy3ksQLhY7in4I8aKrSyWRpaCSAeLQUitxnX3eQiQnAD/S1EEIapwradV
y4ou1PBRsGnhwNgArXODVCcTgqDJqw8=
=GjU4
-----END PGP SIGNATURE-----
Merge tag 'ovl-fixes-5.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
Pull overlayfs fixes from Miklos Szeredi:
- Fix capability conversion and minor overlayfs bugs that are related
to the unprivileged overlay mounts introduced in this cycle.
- Fix two recent (v5.10) and one old (v4.10) bug.
- Clean up security xattr copy-up (related to a SELinux regression).
* tag 'ovl-fixes-5.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
ovl: implement volatile-specific fsync error behaviour
ovl: skip getxattr of security labels
ovl: fix dentry leak in ovl_get_redirect
ovl: avoid deadlock on directory ioctl
cap: fix conversions on getxattr
ovl: perform vfs_getxattr() with mounter creds
ovl: add warning on user_ns mismatch
trees.
Current release - regressions:
- ip_tunnel: fix mtu calculation
- mlx5: fix function calculation for page trees
Previous releases - regressions:
- vsock: fix the race conditions in multi-transport support
- neighbour: prevent a dead entry from updating gc_list
- dsa: mv88e6xxx: override existent unicast portvec in port_fdb_add
Previous releases - always broken:
- bpf, cgroup: two copy_{from,to}_user() warn_on_once splats for BPF
cgroup getsockopt infra when user space is trying
to race against optlen, from Loris Reiff.
- bpf: add missing fput() in BPF inode storage map update helper
- udp: ipv4: manipulate network header of NATed UDP GRO fraglist
- mac80211: fix station rate table updates on assoc
- r8169: work around RTL8125 UDP HW bug
- igc: report speed and duplex as unknown when device is runtime
suspended
- rxrpc: fix deadlock around release of dst cached on udp tunnel
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-----BEGIN PGP SIGNATURE-----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=ZByM
-----END PGP SIGNATURE-----
Merge tag 'net-5.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Networking fixes for 5.11-rc7, including fixes from bpf and mac80211
trees.
Current release - regressions:
- ip_tunnel: fix mtu calculation
- mlx5: fix function calculation for page trees
Previous releases - regressions:
- vsock: fix the race conditions in multi-transport support
- neighbour: prevent a dead entry from updating gc_list
- dsa: mv88e6xxx: override existent unicast portvec in port_fdb_add
Previous releases - always broken:
- bpf, cgroup: two copy_{from,to}_user() warn_on_once splats for BPF
cgroup getsockopt infra when user space is trying to race against
optlen, from Loris Reiff.
- bpf: add missing fput() in BPF inode storage map update helper
- udp: ipv4: manipulate network header of NATed UDP GRO fraglist
- mac80211: fix station rate table updates on assoc
- r8169: work around RTL8125 UDP HW bug
- igc: report speed and duplex as unknown when device is runtime
suspended
- rxrpc: fix deadlock around release of dst cached on udp tunnel"
* tag 'net-5.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (36 commits)
net: hsr: align sup_multicast_addr in struct hsr_priv to u16 boundary
net: ipa: fix two format specifier errors
net: ipa: use the right accessor in ipa_endpoint_status_skip()
net: ipa: be explicit about endianness
net: ipa: add a missing __iomem attribute
net: ipa: pass correct dma_handle to dma_free_coherent()
r8169: fix WoL on shutdown if CONFIG_DEBUG_SHIRQ is set
net/rds: restrict iovecs length for RDS_CMSG_RDMA_ARGS
net: mvpp2: TCAM entry enable should be written after SRAM data
net: lapb: Copy the skb before sending a packet
net/mlx5e: Release skb in case of failure in tc update skb
net/mlx5e: Update max_opened_tc also when channels are closed
net/mlx5: Fix leak upon failure of rule creation
net/mlx5: Fix function calculation for page trees
docs: networking: swap words in icmp_errors_use_inbound_ifaddr doc
udp: ipv4: manipulate network header of NATed UDP GRO fraglist
net: ip_tunnel: fix mtu calculation
vsock: fix the race conditions in multi-transport support
net: sched: replaced invalid qdisc tree flush helper in qdisc_replace
ibmvnic: device remove has higher precedence over reset
...
While addressing some warnings generated by -Warray-bounds, I found this
bug that was introduced back in 2017:
CC [M] fs/cifs/smb2pdu.o
fs/cifs/smb2pdu.c: In function ‘SMB2_negotiate’:
fs/cifs/smb2pdu.c:822:16: warning: array subscript 1 is above array bounds
of ‘__le16[1]’ {aka ‘short unsigned int[1]’} [-Warray-bounds]
822 | req->Dialects[1] = cpu_to_le16(SMB30_PROT_ID);
| ~~~~~~~~~~~~~^~~
fs/cifs/smb2pdu.c:823:16: warning: array subscript 2 is above array bounds
of ‘__le16[1]’ {aka ‘short unsigned int[1]’} [-Warray-bounds]
823 | req->Dialects[2] = cpu_to_le16(SMB302_PROT_ID);
| ~~~~~~~~~~~~~^~~
fs/cifs/smb2pdu.c:824:16: warning: array subscript 3 is above array bounds
of ‘__le16[1]’ {aka ‘short unsigned int[1]’} [-Warray-bounds]
824 | req->Dialects[3] = cpu_to_le16(SMB311_PROT_ID);
| ~~~~~~~~~~~~~^~~
fs/cifs/smb2pdu.c:816:16: warning: array subscript 1 is above array bounds
of ‘__le16[1]’ {aka ‘short unsigned int[1]’} [-Warray-bounds]
816 | req->Dialects[1] = cpu_to_le16(SMB302_PROT_ID);
| ~~~~~~~~~~~~~^~~
At the time, the size of array _Dialects_ was changed from 1 to 3 in struct
validate_negotiate_info_req, and then in 2019 it was changed from 3 to 4,
but those changes were never made in struct smb2_negotiate_req, which has
led to a 3 and a half years old out-of-bounds bug in function
SMB2_negotiate() (fs/cifs/smb2pdu.c).
Fix this by increasing the size of array _Dialects_ in struct
smb2_negotiate_req to 4.
Fixes: 9764c02fcb ("SMB3: Add support for multidialect negotiate (SMB2.1 and later)")
Fixes: d5c7076b77 ("smb3: add smb3.1.1 to default dialect list")
Cc: stable@vger.kernel.org
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Highlights include:
Bugfixes:
- SUNRPC: Handle 0 length opaque XDR object data properly
- Fix a layout segment leak in pnfs_layout_process()
- pNFS/NFSv4: Update the layout barrier when we schedule a layoutreturn
- pNFS/NFSv4: Improve rejection of out-of-order layouts
- pNFS/NFSv4: Try to return invalid layout in pnfs_layout_process()
-----BEGIN PGP SIGNATURE-----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=gLzv
-----END PGP SIGNATURE-----
Merge tag 'nfs-for-5.11-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client fixes from Trond Myklebust:
- SUNRPC: Handle 0 length opaque XDR object data properly
- Fix a layout segment leak in pnfs_layout_process()
- pNFS/NFSv4: Update the layout barrier when we schedule a layoutreturn
- pNFS/NFSv4: Improve rejection of out-of-order layouts
- pNFS/NFSv4: Try to return invalid layout in pnfs_layout_process()
* tag 'nfs-for-5.11-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
SUNRPC: Handle 0 length opaque XDR object data properly
SUNRPC: Move simple_get_bytes and simple_get_netobj into private header
pNFS/NFSv4: Improve rejection of out-of-order layouts
pNFS/NFSv4: Update the layout barrier when we schedule a layoutreturn
pNFS/NFSv4: Try to return invalid layout in pnfs_layout_process()
pNFS/NFSv4: Fix a layout segment leak in pnfs_layout_process()
-----BEGIN PGP SIGNATURE-----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=4/ty
-----END PGP SIGNATURE-----
Merge tag '5.11-rc5-smb3' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French:
"Four cifs patches found in additional testing of the conversion to the
new mount API: three small option processing ones, and one fixing domain
based DFS referrals"
* tag '5.11-rc5-smb3' of git://git.samba.org/sfrench/cifs-2.6:
cifs: fix dfs domain referrals
cifs: returning mount parm processing errors correctly
cifs: fix mounts to subdirectories of target
cifs: ignore auto and noauto options if given
AF_RXRPC sockets use UDP ports in encap mode. This causes socket and dst
from an incoming packet to get stolen and attached to the UDP socket from
whence it is leaked when that socket is closed.
When a network namespace is removed, the wait for dst records to be cleaned
up happens before the cleanup of the rxrpc and UDP socket, meaning that the
wait never finishes.
Fix this by moving the rxrpc (and, by dependence, the afs) private
per-network namespace registrations to the device group rather than subsys
group. This allows cached rxrpc local endpoints to be cleared and their
UDP sockets closed before we try waiting for the dst records.
The symptom is that lines looking like the following:
unregister_netdevice: waiting for lo to become free
get emitted at regular intervals after running something like the
referenced syzbot test.
Thanks to Vadim for tracking this down and work out the fix.
Reported-by: syzbot+df400f2f24a1677cd7e0@syzkaller.appspotmail.com
Reported-by: Vadim Fedorenko <vfedorenko@novek.ru>
Fixes: 5271953cad ("rxrpc: Use the UDP encap_rcv hook")
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Vadim Fedorenko <vfedorenko@novek.ru>
Link: https://lore.kernel.org/r/161196443016.3868642.5577440140646403533.stgit@warthog.procyon.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
-----BEGIN PGP SIGNATURE-----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=/yHv
-----END PGP SIGNATURE-----
Merge tag 'for-5.11-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
"A few more fixes for a late rc:
- fix lockdep complaint on 32bit arches and also remove an unsafe
memory use due to device vs filesystem lifetime
- two fixes for free space tree:
* race during log replay and cache rebuild, now more likely to
happen due to changes in this dev cycle
* possible free space tree corruption with online conversion
during initial tree population"
* tag 'for-5.11-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: fix log replay failure due to race with space cache rebuild
btrfs: fix lockdep warning due to seqcount_mutex on 32bit arch
btrfs: fix possible free space tree corruption with online conversion
-----BEGIN PGP SIGNATURE-----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=hb7W
-----END PGP SIGNATURE-----
Merge tag 'block-5.11-2021-01-29' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"All over the place fixes for this release:
- blk-cgroup iteration teardown resched fix (Baolin)
- NVMe pull request from Christoph:
- add another Write Zeroes quirk (Chaitanya Kulkarni)
- handle a no path available corner case (Daniel Wagner)
- use the proper RCU aware list_add helper (Chao Leng)
- bcache regression fix (Coly)
- bdev->bd_size_lock IRQ fix. This will be fixed in drivers for 5.12,
but for now, we'll make it IRQ safe (Damien)
- null_blk zoned init fix (Damien)
- add_partition() error handling fix (Dinghao)
- s390 dasd kobject fix (Jan)
- nbd fix for freezing queue while adding connections (Josef)
- tag queueing regression fix (Ming)
- revert of a patch that inadvertently meant that we regressed write
performance on raid (Maxim)"
* tag 'block-5.11-2021-01-29' of git://git.kernel.dk/linux-block:
null_blk: cleanup zoned mode initialization
nvme-core: use list_add_tail_rcu instead of list_add_tail for nvme_init_ns_head
nvme-multipath: Early exit if no path is available
nvme-pci: add the DISABLE_WRITE_ZEROES quirk for a SPCC device
bcache: only check feature sets when sb->version >= BCACHE_SB_VERSION_CDEV_WITH_FEATURES
block: fix bd_size_lock use
blk-cgroup: Use cond_resched() when destroy blkgs
Revert "block: simplify set_init_blocksize" to regain lost performance
nbd: freeze the queue while we're adding connections
s390/dasd: Fix inconsistent kobject removal
block: Fix an error handling in add_partition
blk-mq: test QUEUE_FLAG_HCTX_ACTIVE for sbitmap_shared in hctx_may_queue
-----BEGIN PGP SIGNATURE-----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=oCb5
-----END PGP SIGNATURE-----
Merge tag 'io_uring-5.11-2021-01-29' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
"We got the cancelation story sorted now, so for all intents and
purposes, this should be it for 5.11 outside of any potential little
fixes that may come in. This contains:
- task_work task state fixes (Hao, Pavel)
- Cancelation fixes (me, Pavel)
- Fix for an inflight req patch in this release (Pavel)
- Fix for a lock deadlock issue (Pavel)"
* tag 'io_uring-5.11-2021-01-29' of git://git.kernel.dk/linux-block:
io_uring: reinforce cancel on flush during exit
io_uring: fix sqo ownership false positive warning
io_uring: fix list corruption for splice file_get
io_uring: fix flush cqring overflow list while TASK_INTERRUPTIBLE
io_uring: fix wqe->lock/completion_lock deadlock
io_uring: fix cancellation taking mutex while TASK_UNINTERRUPTIBLE
io_uring: fix __io_uring_files_cancel() with TASK_UNINTERRUPTIBLE
io_uring: only call io_cqring_ev_posted() if events were posted
io_uring: if we see flush on exit, cancel related tasks
The new mount API requires additional changes to how DFS
is handled. Additional testing of DFS uncovered problems
with domain based DFS referrals (a follow on patch addresses
DFS links) which this patch addresses.
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>
of UID translations to occur, in some configurations, when setting v3
namespaced file capabilities.
-----BEGIN PGP SIGNATURE-----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=G4uE
-----END PGP SIGNATURE-----
Merge tag 'ecryptfs-5.11-rc6-setxattr-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs
Pull ecryptfs fix from Tyler Hicks:
"Fix a regression that resulted in two rounds of UID translations when
setting v3 namespaced file capabilities in some configurations"
* tag 'ecryptfs-5.11-rc6-setxattr-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs:
ecryptfs: fix uid translation for setxattr on security.capability
What 84965ff8a8 ("io_uring: if we see flush on exit, cancel related tasks")
really wants is to cancel all relevant REQ_F_INFLIGHT requests reliably.
That can be achieved by io_uring_cancel_files(), but we'll miss it
calling io_uring_cancel_task_requests(files=NULL) from io_uring_flush(),
because it will go through __io_uring_cancel_task_requests().
Just always call io_uring_cancel_files() during cancel, it's good enough
for now.
Cc: stable@vger.kernel.org # 5.9+
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
During additional testing of the updated cifs.ko with the
new mount API support, we found a few additional cases where
we were logging errors, but not returning them to the user.
For example:
a) invalid security mechanisms
b) invalid cache options
c) unsupported rdma
d) invalid smb dialect requested
Fixes: 24e0a1eff9 ("cifs: switch to new mount api")
Acked-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
WARNING: CPU: 0 PID: 21359 at fs/io_uring.c:9042
io_uring_cancel_task_requests+0xe55/0x10c0 fs/io_uring.c:9042
Call Trace:
io_uring_flush+0x47b/0x6e0 fs/io_uring.c:9227
filp_close+0xb4/0x170 fs/open.c:1295
close_files fs/file.c:403 [inline]
put_files_struct fs/file.c:418 [inline]
put_files_struct+0x1cc/0x350 fs/file.c:415
exit_files+0x7e/0xa0 fs/file.c:435
do_exit+0xc22/0x2ae0 kernel/exit.c:820
do_group_exit+0x125/0x310 kernel/exit.c:922
get_signal+0x427/0x20f0 kernel/signal.c:2773
arch_do_signal_or_restart+0x2a8/0x1eb0 arch/x86/kernel/signal.c:811
handle_signal_work kernel/entry/common.c:147 [inline]
exit_to_user_mode_loop kernel/entry/common.c:171 [inline]
exit_to_user_mode_prepare+0x148/0x250 kernel/entry/common.c:201
__syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline]
syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:302
entry_SYSCALL_64_after_hwframe+0x44/0xa9
Now io_uring_cancel_task_requests() can be called not through file
notes but directly, remove a WARN_ONCE() there that give us false
positives. That check is not very important and we catch it in other
places.
Fixes: 84965ff8a8 ("io_uring: if we see flush on exit, cancel related tasks")
Cc: stable@vger.kernel.org # 5.9+
Reported-by: syzbot+3e3d9bd0c6ce9efbc3ef@syzkaller.appspotmail.com
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The "prefixpath" mount option needs to be ignored
which was missed in the recent conversion to the
new mount API (prefixpath would be set by the mount
helper if mounting a subdirectory of the root of a
share e.g. //server/share/subdir)
Fixes: 24e0a1eff9 ("cifs: switch to new mount api")
Suggested-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
In 24e0a1eff9, the noauto and auto options were missed when migrating
to the new mount API. As a result, users with noauto in their fstab
mount options are now unable to mount cifs filesystems, as they'll
receive an "Unknown parameter" error.
This restores the old behaviour of ignoring noauto and auto if they're
given.
Fixes: 24e0a1eff9 ("cifs: switch to new mount api")
Signed-off-by: Adam Harvey <adam@adamharvey.name>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Overlayfs's volatile option allows the user to bypass all forced sync calls
to the upperdir filesystem. This comes at the cost of safety. We can never
ensure that the user's data is intact, but we can make a best effort to
expose whether or not the data is likely to be in a bad state.
The best way to handle this in the time being is that if an overlayfs's
upperdir experiences an error after a volatile mount occurs, that error
will be returned on fsync, fdatasync, sync, and syncfs. This is
contradictory to the traditional behaviour of VFS which fails the call
once, and only raises an error if a subsequent fsync error has occurred,
and been raised by the filesystem.
One awkward aspect of the patch is that we have to manually set the
superblock's errseq_t after the sync_fs callback as opposed to just
returning an error from syncfs. This is because the call chain looks
something like this:
sys_syncfs ->
sync_filesystem ->
__sync_filesystem ->
/* The return value is ignored here
sb->s_op->sync_fs(sb)
_sync_blockdev
/* Where the VFS fetches the error to raise to userspace */
errseq_check_and_advance
Because of this we call errseq_set every time the sync_fs callback occurs.
Due to the nature of this seen / unseen dichotomy, if the upperdir is an
inconsistent state at the initial mount time, overlayfs will refuse to
mount, as overlayfs cannot get a snapshot of the upperdir's errseq that
will increment on error until the user calls syncfs.
Signed-off-by: Sargun Dhillon <sargun@sargun.me>
Suggested-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>
Fixes: c86243b090 ("ovl: provide a mount option "volatile"")
Cc: stable@vger.kernel.org
Reviewed-by: Vivek Goyal <vgoyal@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
When inode has no listxattr op of its own (e.g. squashfs) vfs_listxattr
calls the LSM inode_listsecurity hooks to list the xattrs that LSMs will
intercept in inode_getxattr hooks.
When selinux LSM is installed but not initialized, it will list the
security.selinux xattr in inode_listsecurity, but will not intercept it
in inode_getxattr. This results in -ENODATA for a getxattr call for an
xattr returned by listxattr.
This situation was manifested as overlayfs failure to copy up lower
files from squashfs when selinux is built-in but not initialized,
because ovl_copy_xattr() iterates the lower inode xattrs by
vfs_listxattr() and vfs_getxattr().
ovl_copy_xattr() skips copy up of security labels that are indentified by
inode_copy_up_xattr LSM hooks, but it does that after vfs_getxattr().
Since we are not going to copy them, skip vfs_getxattr() of the security
labels.
Reported-by: Michael Labriola <michael.d.labriola@gmail.com>
Tested-by: Michael Labriola <michael.d.labriola@gmail.com>
Link: https://lore.kernel.org/linux-unionfs/2nv9d47zt7.fsf@aldarion.sourceruckus.org/
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
The function ovl_dir_real_file() currently uses the inode lock to serialize
writes to the od->upperfile field.
However, this function will get called by ovl_ioctl_set_flags(), which
utilizes the inode lock too. In this case ovl_dir_real_file() will try to
claim a lock that is owned by a function in its call stack, which won't get
released before ovl_dir_real_file() returns.
Fix by replacing the open coded compare and exchange by an explicit atomic
op.
Fixes: 61536bed21 ("ovl: support [S|G]ETFLAGS and FS[S|G]ETXATTR ioctls for directories")
Cc: stable@vger.kernel.org # v5.10
Reported-by: Icenowy Zheng <icenowy@aosc.io>
Tested-by: Icenowy Zheng <icenowy@aosc.io>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
The vfs_getxattr() in ovl_xattr_set() is used to check whether an xattr
exist on a lower layer file that is to be removed. If the xattr does not
exist, then no need to copy up the file.
This call of vfs_getxattr() wasn't wrapped in credential override, and this
is probably okay. But for consitency wrap this instance as well.
Reported-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Currently there's no way to create an overlay filesystem outside of the
current user namespace. Make sure that if this assumption changes it
doesn't go unnoticed.
Reported-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
