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linux/fs/ext4
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Fabio M. De Francesco c0cb9d453f ext4: drop the call to ext4_error() from ext4_get_group_info() 
[ Upstream commit f451fd97dd ]

A recent patch added a call to ext4_error() which is problematic since
some callers of the ext4_get_group_info() function may be holding a
spinlock, whereas ext4_error() must never be called in atomic context.

This triggered a report from Syzbot: "BUG: sleeping function called from
invalid context in ext4_update_super" (see the link below).

Therefore, drop the call to ext4_error() from ext4_get_group_info(). In
the meantime use eight characters tabs instead of nine characters ones.

Reported-by: syzbot+4acc7d910e617b360859@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/all/00000000000070575805fdc6cdb2@google.com/
Fixes: 5354b2af34 ("ext4: allow ext4_get_group_info() to fail")
Suggested-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Link: https://lore.kernel.org/r/20230614100446.14337-1-fmdefrancesco@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2023-06-21 15:59:18 +02:00
..
.kunitconfig ext4: add .kunitconfig fragment to enable ext4-specific tests 2021-02-11 23:16:30 -05:00
acl.c ext4: use ext4_journal_start/stop for fast commit transactions 2023-05-11 23:00:16 +09:00
acl.h vfs: add rcu argument to ->get_acl() callback 2021-08-18 22:08:24 +02:00
balloc.c ext4: drop the call to ext4_error() from ext4_get_group_info() 2023-06-21 15:59:18 +02:00
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: add ext4_sb_block_valid() refactored out of ext4_inode_block_valid() 2023-03-17 08:49:02 +01:00
dir.c ext4: fix potential infinite loop in ext4_dx_readdir() 2021-10-01 00:05:09 -04:00
ext4.h ext4: add lockdep annotations for i_data_sem for ea_inode's 2023-06-09 10:32:33 +02:00
ext4_extents.h ext4: fix sparse warnings 2021-08-30 23:36:50 -04:00
ext4_jbd2.c ext4: use ext4_debug() instead of jbd_debug() 2023-01-12 11:59:04 +01:00
ext4_jbd2.h ext4: Support for checksumming from journal triggers 2021-08-30 23:36:50 -04:00
extents.c ext4: fix use-after-free read in ext4_find_extent for bigalloc + inline 2023-05-11 23:00:37 +09:00
extents_status.c ext4: fix data races when using cached status extents 2023-05-17 11:50:29 +02:00
extents_status.h ext4: fix extent_status trace points 2020-01-25 02:03:03 -05:00
fast_commit.c ext4: use ext4_fc_tl_mem in fast-commit replay path 2023-03-11 13:57:26 +01:00
fast_commit.h ext4: add missing validation of fast-commit record lengths 2023-01-12 11:59:05 +01:00
file.c ext4: use ext4_journal_start/stop for fast commit transactions 2023-05-11 23:00:16 +09:00
fsmap.c ext4: fix another off-by-one fsmap error on 1k block filesystems 2023-03-17 08:48:48 +01:00
fsmap.h ext4: fsmap: fix the block/inode bitmap comment 2021-06-24 09:48:29 -04:00
fsync.c block: use an on-stack bio in blkdev_issue_flush 2021-01-27 09:51:48 -07:00
hash.c ext4: improve error handling from ext4_dirhash() 2023-05-17 11:50:30 +02:00
ialloc.c ext4: allow ext4_get_group_info() to fail 2023-05-24 17:36:43 +01:00
indirect.c ext4: use ext4_debug() instead of jbd_debug() 2023-01-12 11:59:04 +01:00
inline.c ext4: bail out of ext4_xattr_ibody_get() fails for any reason 2023-05-17 11:50:30 +02:00
inode-test.c fs: ext4: Modify inode-test.c to use KUnit parameterized testing feature 2020-12-02 16:07:25 -07:00
inode.c ext4: disallow ea_inodes with extended attributes 2023-06-09 10:32:33 +02:00
ioctl.c ext4: use ext4_journal_start/stop for fast commit transactions 2023-05-11 23:00:16 +09:00
Kconfig ext: EXT4_KUNIT_TESTS should depend on EXT4_FS instead of selecting it 2021-02-11 23:12:59 -05:00
Makefile ext4: Move orphan inode handling into a separate file 2021-08-30 23:36:51 -04:00
mballoc.c ext4: Fix best extent lstart adjustment logic in ext4_mb_new_inode_pa() 2023-05-24 17:36:45 +01:00
mballoc.h ext4: fix various seppling typos 2021-04-09 23:14:59 -04:00
migrate.c ext4: fix warning in 'ext4_da_release_space' 2022-11-10 18:15:40 +01:00
mmp.c ext4: fix lockdep warning when enabling MMP 2023-05-24 17:36:43 +01:00
move_extent.c ext4: use common helpers in all places reading metadata buffers 2020-10-18 10:37:14 -04:00
namei.c ext4: improve error handling from ext4_dirhash() 2023-05-17 11:50:30 +02:00
orphan.c ext4: use ext4_debug() instead of jbd_debug() 2023-01-12 11:59:04 +01:00
page-io.c ext4: fix cgroup writeback accounting with fs-layer encryption 2023-03-17 08:48:48 +01:00
readpage.c block: Add bio_max_segs 2021-02-26 15:49:51 -07:00
resize.c ext4: fix bad checksum after online resize 2023-02-06 07:59:01 +01:00
super.c Revert "ext4: don't clear SB_RDONLY when remounting r/w until quota is re-enabled" 2023-06-14 11:13:09 +02:00
symlink.c ext4: report correct st_size for encrypted symlinks 2021-07-25 20:01:06 -07:00
sysfs.c ext4: Fix function prototype mismatch for ext4_feat_ktype 2023-02-25 12:06:45 +01:00
truncate.h ext4: Convert to use mapping->invalidate_lock 2021-07-13 14:29:00 +02:00
verity.c fs: ext4: initialize fsdata in pagecache_write() 2023-01-12 11:59:00 +01:00
xattr.c ext4: only check dquot_initialize_needed() when debugging 2023-06-14 11:13:09 +02:00
xattr.h ext4: remove EA inode entry from mbcache on inode eviction 2022-08-17 14:24:27 +02:00
xattr_hurd.c acl: handle idmapped mounts 2021-01-24 14:27:17 +01:00
xattr_security.c acl: handle idmapped mounts 2021-01-24 14:27:17 +01:00
xattr_trusted.c acl: handle idmapped mounts 2021-01-24 14:27:17 +01:00
xattr_user.c acl: handle idmapped mounts 2021-01-24 14:27:17 +01:00