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linux/fs/ext4
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Jun Nie 21f6a80d92 ext4: refuse to create ea block when umounted 
commit f31173c19901a96bb2ebf6bcfec8a08df7095c91 upstream.

The ea block expansion need to access s_root while it is
already set as NULL when umount is triggered. Refuse this
request to avoid panic.

Reported-by: syzbot+2dacb8f015bf1420155f@syzkaller.appspotmail.com
Link: https://syzkaller.appspot.com/bug?id=3613786cb88c93aa1c6a279b1df6a7b201347d08
Link: https://lore.kernel.org/r/20230103014517.495275-3-jun.nie@linaro.org
Cc: stable@kernel.org
Signed-off-by: Jun Nie <jun.nie@linaro.org>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-03-11 16:31:52 +01:00
..
acl.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
acl.h
ext4: fix up remaining files with SPDX cleanups
2017-12-17 22:00:59 -05:00
balloc.c
ext4: fix potential race between online resizing and write operations
2020-02-28 16:38:57 +01:00
bitmap.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
block_validity.c
ext4: eliminate bogus error in ext4_data_block_valid_rcu()
2021-07-11 12:49:30 +02:00
dir.c
ext4: fix potential infinite loop in ext4_dx_readdir()
2021-10-06 15:31:25 +02:00
ext4_extents.h
ext4: fix EXT_MAX_EXTENT/INDEX to check for zeroed eh_max
2020-06-22 09:05:21 +02:00
ext4_jbd2.c
ext4: shutdown should not prevent get_write_access
2018-02-18 22:07:36 -05:00
ext4_jbd2.h
ext4: use jbd2_inode dirty range scoping
2019-07-28 08:29:29 +02:00
ext4.h
Revert "ext4: generalize extents status tree search functions"
2023-01-24 07:11:51 +01:00
extents_status.c
Revert "ext4: generalize extents status tree search functions"
2023-01-24 07:11:51 +01:00
extents_status.h
Revert "ext4: generalize extents status tree search functions"
2023-01-24 07:11:51 +01:00
extents.c
Revert "ext4: generalize extents status tree search functions"
2023-01-24 07:11:51 +01:00
file.c
ext4: avoid crash when inline data creation follows DIO write
2022-10-26 13:19:22 +02:00
fsmap.c
ext4: limit entries returned when counting fsmap records
2020-10-30 10:38:22 +01:00
fsmap.h
ext4: fix up remaining files with SPDX cleanups
2017-12-17 22:00:59 -05:00
fsync.c
ext4: fix race between ext4_sync_parent() and rename()
2020-06-22 09:05:22 +02:00
hash.c
ext4: fix up remaining files with SPDX cleanups
2017-12-17 22:00:59 -05:00
ialloc.c
ext4: make directory inode spreading reflect flexbg size
2022-09-28 11:02:58 +02:00
indirect.c
ext4: fix error code return to user-space in ext4_get_branch()
2023-01-18 11:30:45 +01:00
inline.c
ext4: correct max_inline_xattr_value_size computing
2022-08-25 11:15:29 +02:00
inode.c
Revert "ext4: generalize extents status tree search functions"
2023-01-24 07:11:51 +01:00
ioctl.c
ext4: initialize quota before expanding inode in setproject ioctl
2023-01-18 11:30:46 +01:00
Kconfig
fs/*/Kconfig: drop links to 404-compliant http://acl.bestbits.at
2018-01-01 12:45:37 -07:00
Makefile
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mballoc.c
ext4: fix bug_on ext4_mb_use_inode_pa
2022-06-25 11:49:17 +02:00
mballoc.h
ext4: fix up remaining files with SPDX cleanups
2017-12-17 22:00:59 -05:00
migrate.c
ext4: fix warning in 'ext4_da_release_space'
2022-11-10 17:46:55 +01:00
mmp.c
ext4: don't assume that mmp_nodename/bdevname have NUL
2020-02-19 19:51:55 +01:00
move_extent.c
ext4: use jbd2_inode dirty range scoping
2019-07-28 08:29:29 +02:00
namei.c
ext4: init quota for 'old.inode' in 'ext4_rename'
2023-01-18 11:30:45 +01:00
page-io.c
ext4: fix symlink file size not match to file content
2022-04-27 13:39:45 +02:00
readpage.c
ext4: readpages() should submit IO as read-ahead
2018-08-17 16:20:29 -07:00
resize.c
ext4: fix corruption when online resizing a 1K bigalloc fs
2023-01-18 11:30:45 +01:00
super.c
Revert "ext4: add new pending reservation mechanism"
2023-01-24 07:11:51 +01:00
symlink.c
ext4: report correct st_size for encrypted symlinks
2021-09-22 11:47:56 +02:00
sysfs.c
ext4: Fix function prototype mismatch for ext4_feat_ktype
2023-02-25 11:51:51 +01:00
truncate.h
ext4: handle layout changes to pinned DAX mappings
2018-07-29 17:00:22 -04:00
xattr_security.c
ext4: use XATTR_CREATE in ext4_initxattrs()
2018-05-10 11:52:14 -04:00
xattr_trusted.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
xattr_user.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
xattr.c
ext4: refuse to create ea block when umounted
2023-03-11 16:31:52 +01:00
xattr.h
ext4: remove EA inode entry from mbcache on inode eviction
2023-01-18 11:30:48 +01:00