Baokun Li 5cd740287a ext4: fail ext4_iget if special inode unallocated ... In ext4_fill_super(), EXT4_ORPHAN_FS flag is cleared after ext4_orphan_cleanup() is executed. Therefore, when __ext4_iget() is called to get an inode whose i_nlink is 0 when the flag exists, no error is returned. If the inode is a special inode, a null pointer dereference may occur. If the value of i_nlink is 0 for any inodes (except boot loader inodes) got by using the EXT4_IGET_SPECIAL flag, the current file system is corrupted. Therefore, make the ext4_iget() function return an error if it gets such an abnormal special inode. Link: https://bugzilla.kernel.org/show_bug.cgi?id=199179 Link: https://bugzilla.kernel.org/show_bug.cgi?id=216541 Link: https://bugzilla.kernel.org/show_bug.cgi?id=216539 Reported-by: Luís Henriques <lhenriques@suse.de> Suggested-by: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Baokun Li <libaokun1@huawei.com> Reviewed-by: Jan Kara <jack@suse.cz> Link: https://lore.kernel.org/r/20230107032126.4165860-2-libaokun1@huawei.com Signed-off-by: Theodore Ts'o <tytso@mit.edu>		2023-02-19 00:09:59 -05:00
..
.kunitconfig	ext4: add .kunitconfig fragment to enable ext4-specific tests	2021-02-11 23:16:30 -05:00
acl.c	fs: pass dentry to set acl method	2022-10-19 12:55:42 +02:00
acl.h	fs: pass dentry to set acl method	2022-10-19 12:55:42 +02:00
balloc.c	ext4: use ext4_debug() instead of jbd_debug()	2022-08-02 23:52:19 -04:00
bitmap.c
block_validity.c	ext4: add ext4_sb_block_valid() refactored out of ext4_inode_block_valid()	2022-02-25 21:34:56 -05:00
crypto.c	ext4: refactor and move ext4_ioctl_get_encryption_pwsalt()	2022-05-21 22:24:24 -04:00
dir.c	ext4: fix spelling errors in comments	2022-05-11 15:19:06 -04:00
ext4_extents.h	ext4: fix sparse warnings	2021-08-30 23:36:50 -04:00
ext4_jbd2.c	ext4: split ext4_journal_start trace for debug	2022-12-01 10:46:54 -05:00
ext4_jbd2.h	ext4: split ext4_journal_start trace for debug	2022-12-01 10:46:54 -05:00
ext4.h	ext4: switch to using ext4_do_writepages() for ordered data writeout	2022-12-08 21:49:25 -05:00
extents_status.c	ext4: fix reserved cluster accounting in __es_remove_extent()	2022-12-09 00:58:04 -05:00
extents_status.h	ext4: fix extent_status trace points	2020-01-25 02:03:03 -05:00
extents.c	ext4: fix inode tree inconsistency caused by ENOMEM	2023-02-18 23:58:28 -05:00
fast_commit.c	ext4: use ext4_fc_tl_mem in fast-commit replay path	2023-02-09 10:43:23 -05:00
fast_commit.h	ext4: add missing validation of fast-commit record lengths	2022-12-08 21:49:24 -05:00
file.c	ext4: dio take shared inode lock when overwriting preallocated blocks	2023-02-14 21:23:38 -05:00
fsmap.c	treewide: Change list_sort to use const pointers	2021-04-08 16:04:22 -07:00
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	unicode: clean up the Kconfig symbol confusion	2022-01-20 19:57:24 -05:00
ialloc.c	A large number of cleanups and bug fixes, with many of the bug fixes	2022-12-12 19:56:37 -08:00
indirect.c	ext4: fix error code return to user-space in ext4_get_branch()	2022-12-08 21:49:24 -05:00
inline.c	fs/ext4: replace ternary operator with min()/max() and min_t()	2022-11-29 16:10:49 -05:00
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: fail ext4_iget if special inode unallocated	2023-02-19 00:09:59 -05:00
ioctl.c	ext4: remove dead code in updating backup sb	2023-02-18 22:57:25 -05:00
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 ext4 crypto code to its own file crypto.c	2022-05-21 22:24:24 -04:00
mballoc.c	ext4: make ext4_mb_initialize_context return void	2022-12-08 21:49:25 -05:00
mballoc.h	ext4: use buckets for cr 1 block scan instead of rbtree	2022-09-21 22:12:03 -04:00
migrate.c	ext4: fix warning in 'ext4_da_release_space'	2022-11-06 01:07:59 -04:00
mmp.c	treewide: use get_random_u32_{above,below}() instead of manual loop	2022-11-18 02:15:22 +01:00
move_extent.c	ext4: convert move_extent_per_page() to use folios	2022-11-30 15:59:02 -08:00
namei.c	A large number of cleanups and bug fixes, with many of the bug fixes	2022-12-12 19:56:37 -08:00
orphan.c	ext4: remove trailing newline from ext4_msg() message	2022-12-08 21:49:23 -05:00
page-io.c	ext4: drop pointless IO submission from ext4_bio_write_page()	2022-12-08 21:49:25 -05:00
readpage.c	fsverity updates for 6.2	2022-12-12 20:06:35 -08:00
resize.c	ext4: fix corruption when online resizing a 1K bigalloc fs	2022-12-08 21:49:24 -05:00
super.c	ext4: don't show commit interval if it is zero	2023-02-09 10:43:23 -05:00
symlink.c	ext4: fix reading leftover inlined symlinks	2022-08-02 23:37:50 -04:00
sysfs.c	ext4: fix function prototype mismatch for ext4_feat_ktype	2023-02-19 00:09:59 -05:00
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()	2022-12-08 21:49:25 -05:00
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
xattr.c	ext4: refuse to create ea block when umounted	2023-02-18 23:58:18 -05:00
xattr.h	ext4: remove EA inode entry from mbcache on inode eviction	2022-08-02 23:56:25 -04:00