Ilya Dryomov
193490dbe5
ceph: canonicalize server path in place ...
commit b27a939e8376a3f1ed09b9c33ef44d20f18ec3d0 upstream.
syzbot reported that 4fbc0c711b24 ("ceph: remove the extra slashes in
the server path") had caused a regression where an allocation could be
done under a spinlock -- compare_mount_options() is called by sget_fc()
with sb_lock held.
We don't really need the supplied server path, so canonicalize it
in place and compare it directly. To make this work, the leading
slash is kept around and the logic in ceph_real_mount() to skip it
is restored. CEPH_MSG_CLIENT_SESSION now reports the same (i.e.
canonicalized) path, with the leading slash of course.
Fixes: 4fbc0c711b24 ("ceph: remove the extra slashes in the server path")
Reported-by: syzbot+98704a51af8e3d9425a9@syzkaller.appspotmail.com
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Luis Henriques <lhenriques@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-13 10:48:11 +02:00
9p pull request for inclusion in 5.4
2019-09-27 15:10:34 -07:00
Merge branch 'work.adfs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-07-19 11:33:22 -07:00
affs: fix a memory leak in affs_remount
2020-01-17 19:48:50 +01:00
afs: Fix unpinned address list during probing
2020-04-01 11:02:08 +02:00
autofs: fix a leak in autofs_expire_indirect()
2019-10-25 00:03:11 -04:00
fs: Fill in max and min timestamps in superblock
2019-08-30 07:27:17 -07:00
fs: Fill in max and min timestamps in superblock
2019-08-30 07:27:17 -07:00
btrfs: fix log context list corruption after rename whiteout error
2020-03-25 08:25:56 +01:00
ceph: canonicalize server path in place
2020-04-13 10:48:11 +02:00
CIFS: fiemap: do not return EINVAL if get nothing
2020-03-25 08:25:54 +01:00
y2038: add inode timestamp clamping
2019-09-19 09:42:37 -07:00
utimes: Clamp the timestamps in notify_change()
2020-02-11 04:35:12 -08:00
cramfs: fix usage on non-MTD device
2019-11-23 21:44:49 -05:00
fscrypt: don't evict dirty inodes after removing key
2020-03-18 07:17:53 +01:00
debugfs: Return -EPERM when locked down
2020-02-01 09:34:35 +00:00
devpts_pty_kill(): don't bother with d_delete()
2019-09-03 09:30:56 -04:00
dlm for 5.3
2019-07-12 17:37:53 -07:00
ecryptfs: replace BUG_ON with error handling code
2020-02-28 17:22:26 +01:00
Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-07-19 10:42:02 -07:00
fs: Fill in max and min timestamps in superblock
2019-08-30 07:27:17 -07:00
erofs: fix out-of-bound read for shifted uncompressed block
2020-02-11 04:35:23 -08:00
exportfs_decode_fh(): negative pinned may become positive without the parent locked
2019-11-10 11:56:05 -05:00
ext2: Adjust indentation in ext2_fill_super
2020-02-11 04:35:45 -08:00
ext4: potential crash on allocation error in ext4_alloc_flex_bg_array()
2020-03-05 16:43:41 +01:00
f2fs: fix to add swap extent correctly
2020-03-05 16:43:48 +01:00
fat: fix uninit-memory access for partial initialized inode
2020-03-12 13:00:19 +01:00
fs: Fill in max and min timestamps in superblock
2019-08-30 07:27:17 -07:00
Revert "Merge tag 'keys-acl-20190703' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs"
2019-07-10 18:43:43 -07:00
fuse: fix stack use after return
2020-03-18 07:17:52 +01:00
gfs2_atomic_open(): fix O_EXCL|O_CREAT handling on cold dcache
2020-03-18 07:17:51 +01:00
fs/hfsplus/xattr.c: replace strncpy with memcpy
2019-07-16 19:23:23 -07:00
fs: hpfs: Initialize filesystem timestamp ranges
2019-08-30 08:11:25 -07:00
mm/hugetlbfs: fix for_each_hstate() loop in init_hugetlbfs_fs()
2020-01-04 19:19:19 +01:00
iomap: fix return value of iomap_dio_bio_actor on 32bit systems
2020-01-04 19:17:31 +01:00
y2038: add inode timestamp clamping
2019-09-19 09:42:37 -07:00
jbd2: fix data races at struct journal_head
2020-03-21 08:11:57 +01:00
Revert "jffs2: Fix possible null-pointer dereferences in jffs2_add_frag_to_fragtree()"
2019-12-04 22:31:06 +01:00
y2038: add inode timestamp clamping
2019-09-19 09:42:37 -07:00
kernfs: fix ino wrap-around detection
2019-12-13 08:42:53 +01:00
fs: Fill in max and min timestamps in superblock
2019-08-30 07:27:17 -07:00
nfs: add minor version to nfs_server_key for fscache
2020-04-01 11:01:50 +02:00
nfsd: Clone should commit src file metadata too
2020-02-24 08:36:38 +01:00
fs: call fsnotify_sb_delete after evict_inodes
2020-01-12 12:21:38 +01:00
utimes: Clamp the timestamps in notify_change()
2020-02-11 04:35:12 -08:00
ocfs2: fix a NULL pointer dereference when call ocfs2_update_inode_fsync_trans()
2020-02-24 08:37:00 +01:00
fs: omfs: Initialize filesystem timestamp ranges
2019-08-30 08:11:25 -07:00
Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-07-19 10:42:02 -07:00
help_next should increase position index
2020-02-24 08:37:02 +01:00
ovl: fix lseek overflow on 32bit
2020-02-11 04:35:24 -08:00
proc/meminfo: fix output alignment
2019-10-19 06:32:32 -04:00
pstore/ram: Regularize prz label allocation lifetime
2020-01-14 20:08:28 +01:00
fs: Fill in max and min timestamps in superblock
2019-08-30 07:27:17 -07:00
fs: Fill in max and min timestamps in superblock
2019-08-30 07:27:17 -07:00
fs: avoid softlockups in s_inodes iterators
2020-01-12 12:21:37 +01:00
vfs: Convert ramfs, shmem, tmpfs, devtmpfs, rootfs to use the new mount API
2019-09-12 21:05:34 -04:00
reiserfs: prevent NULL pointer dereference in reiserfs_insert_item()
2020-02-24 08:37:00 +01:00
Merge branch 'work.mount2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-09-19 10:06:57 -07:00
Merge branch 'work.mount2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-09-19 10:06:57 -07:00
Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-07-19 10:42:02 -07:00
fs: sysv: Initialize filesystem timestamp ranges
2019-08-30 07:27:18 -07:00
tracing: Do not create tracefs files if tracefs lockdown is in effect
2019-10-12 20:49:07 -04:00
ubifs: Fix ino_t format warnings in orphan_delete()
2020-03-05 16:43:50 +01:00
udf: Fix free space reporting for metadata and virtual partitions
2020-02-24 08:36:44 +01:00
y2038: add inode timestamp clamping
2019-09-19 09:42:37 -07:00
unicode: make array 'token' static const, makes object smaller
2019-09-17 11:48:24 -04:00
fs-verity: support builtin file signatures
2019-08-12 19:33:50 -07:00
xfs: clear kernel only flags in XFS_IOC_ATTRMULTI_BY_HANDLE
2020-03-05 16:43:51 +01:00
aio: prevent potential eventfd recursion on poll
2020-02-11 04:35:37 -08:00
Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-07-19 10:42:02 -07:00
utimes: Clamp the timestamps in notify_change()
2020-02-11 04:35:12 -08:00
elf: don't use MAP_FIXED_NOREPLACE for elf executable mappings
2019-10-06 13:53:27 -07:00
fs/binfmt_flat.c: remove set but not used variable 'inode'
2019-07-16 19:23:22 -07:00
Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-07-19 10:42:02 -07:00
bdev: Refresh bdev size for disks without partitioning
2019-12-13 08:43:19 +01:00
fs: move guard_bio_eod() after bio_set_op_attrs
2020-01-17 19:48:21 +01:00
chardev: Avoid potential use-after-free in 'chrdev_open()'
2020-01-14 20:08:18 +01:00
fix compat handling of FICLONERANGE, FIDEDUPERANGE and FS_IOC_FIEMAP
2020-01-09 10:20:05 +01:00
coredump: split pipe command whitespace before expanding template
2019-08-03 07:02:01 -07:00
[PATCH] fix d_absolute_path() interplay with fsmount()
2019-08-30 19:31:09 -04:00
dax: pass NOWAIT flag to iomap_apply
2020-03-05 16:43:36 +01:00
Merge branch 'work.dcache2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-07-20 09:15:51 -07:00
fs/direct-io.c: fix kernel-doc warning
2019-10-14 15:04:01 -07:00
fs: avoid softlockups in s_inodes iterators
2020-01-12 12:21:37 +01:00
eventfd: track eventfd_signal() recursion depth
2020-02-11 04:35:37 -08:00
epoll: fix possible lost wakeup on epoll_ctl() path
2020-03-25 08:25:57 +01:00
exit/exec: Seperate mm_release()
2019-11-29 10:10:10 +01:00
fs/handle.c - fix up kerneldoc
2019-08-07 21:51:47 -04:00
vfs: Export flush_delayed_fput for use by knfsd.
2019-08-19 11:00:39 -04:00
memcg: fix a crash in wb_workfn when a device disappears
2020-02-11 04:35:11 -08:00
vfs: subtype handling moved to fuse
2019-09-06 21:28:49 +02:00
vfs: Make fs_parse() handle fs_param_is_fd-type params better
2019-09-12 21:06:14 -04:00
switch the remnants of releasing the mountpoint away from fs_pin
2019-07-16 22:52:37 -04:00
Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-07-19 10:42:02 -07:00
futex: Fix inode life-time issue
2020-03-25 08:25:58 +01:00
fs: move guard_bio_eod() after bio_set_op_attrs
2020-01-17 19:48:21 +01:00
io_uring: fix 32-bit compatability with sendmsg/recvmsg
2020-03-05 16:43:44 +01:00
compat_ioctl: add compat_ptr_ioctl()
2019-12-17 19:55:30 +01:00
fs-verity for 5.4
2019-09-18 16:59:14 -07:00
libfs: fix infoleak in simple_attr_read()
2020-04-01 11:02:17 +02:00
locks: reinstate locks_delete_block optimization
2020-03-25 08:25:41 +01:00
fs-verity for 5.4
2019-09-18 16:59:14 -07:00
switch the remnants of releasing the mountpoint away from fs_pin
2019-07-16 22:52:37 -04:00
fs: move guard_bio_eod() after bio_set_op_attrs
2020-01-17 19:48:21 +01:00
namei: only return -ECHILD from follow_dotdot_rcu()
2020-03-05 16:43:48 +01:00
fs/namespace.c: fix use-after-free of mount in mnt_warn_timestamp_expiry()
2019-10-16 23:15:09 -04:00
cifs_atomic_open(): fix double-put on late allocation failure
2020-03-18 07:17:51 +01:00
vfs: subtype handling moved to fuse
2019-09-06 21:28:49 +02:00
fs: allow deduplication of eof block into the end of the destination file
2020-02-11 04:35:23 -08:00
readdir: be more conservative with directory entry names
2020-01-29 16:45:31 +01:00
fs/select.c: use struct_size() in kmalloc()
2019-07-16 19:23:25 -07:00
seq_file: fix problem when seeking mid-record
2019-08-13 16:06:52 -07:00
splice: only read in as much information as there is pipe buffer space
2019-12-17 19:56:52 +01:00
vfs: Fix EOVERFLOW testing in put_compat_statfs64
2019-10-03 14:21:35 -07:00
fs: call fsnotify_sb_delete after evict_inodes
2020-01-12 12:21:38 +01:00
timerfd: Prepare for PREEMPT_RT
2019-08-01 20:51:23 +02:00
userfaultfd: require CAP_SYS_PTRACE for UFFD_FEATURE_EVENT_FORK
2020-01-04 19:18:32 +01:00
utimes: Clamp the timestamps in notify_change()
2020-02-11 04:35:12 -08:00
193490dbe5