Jan Kara 3a3ce94164 ext4: avoid cycles in directory h-tree ... commit 3ba733f879 upstream. A maliciously corrupted filesystem can contain cycles in the h-tree stored inside a directory. That can easily lead to the kernel corrupting tree nodes that were already verified under its hands while doing a node split and consequently accessing unallocated memory. Fix the problem by verifying traversed block numbers are unique. Cc: stable@vger.kernel.org Signed-off-by: Jan Kara <jack@suse.cz> Link: https://lore.kernel.org/r/20220518093332.13986-2-jack@suse.cz Signed-off-by: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-06-09 10:23:20 +02:00
..
.kunitconfig	ext4: add .kunitconfig fragment to enable ext4-specific tests	2021-02-11 23:16:30 -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 orphan inode handling into a separate file	2021-08-30 23:36:51 -04:00
acl.c	vfs: add rcu argument to ->get_acl() callback	2021-08-18 22:08:24 +02:00
acl.h	vfs: add rcu argument to ->get_acl() callback	2021-08-18 22:08:24 +02:00
balloc.c	ext4: flush background discard kwork when retry allocation	2021-08-30 23:35:53 -04:00
bitmap.c	…
block_validity.c	ext4: standardize error message in ext4_protect_reserved_inode()	2020-12-17 13:30:55 -05:00
dir.c	ext4: fix potential infinite loop in ext4_dx_readdir()	2021-10-01 00:05:09 -04:00
ext4.h	ext4: fix use-after-free in ext4_search_dir	2022-04-27 14:39:01 +02:00
ext4_extents.h	ext4: fix sparse warnings	2021-08-30 23:36:50 -04:00
ext4_jbd2.c	ext4: fix null-ptr-deref in '__ext4_journal_ensure_credits'	2022-01-27 11:05:17 +01:00
ext4_jbd2.h	ext4: Support for checksumming from journal triggers	2021-08-30 23:36:50 -04:00
extents.c	ext4: fix bug_on in __es_tree_search	2022-06-09 10:23:20 +02:00
extents_status.c	ext4: correct the cache_nr in tracepoint ext4_es_shrink_exit	2021-06-22 21:34:17 -04:00
extents_status.h	…
fast_commit.c	ext4: fast commit may miss file actions	2022-03-08 19:12:32 +01:00
fast_commit.h	ext4: simplify updating of fast commit stats	2022-03-08 19:12:32 +01:00
file.c	iomap: Add done_before argument to iomap_dio_rw	2022-05-01 17:22:32 +02:00
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	ext4: handle casefolding with encryption	2021-04-05 22:04:20 -04:00
ialloc.c	ext4: Support for checksumming from journal triggers	2021-08-30 23:36:50 -04:00
indirect.c	ext4: Support for checksumming from journal triggers	2021-08-30 23:36:50 -04:00
inline.c	ext4: fix bug_on in ext4_writepages	2022-06-09 10:23:20 +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: fix warning in ext4_handle_inode_extension	2022-06-09 10:23:20 +02:00
ioctl.c	ext4: fast commit may not fallback for ineligible commit	2022-03-08 19:12:32 +01:00
mballoc.c	ext4: mark group as trimmed only if it was fully scanned	2022-06-09 10:23:19 +02:00
mballoc.h	ext4: fix various seppling typos	2021-04-09 23:14:59 -04:00
migrate.c	ext4: don't use the orphan list when migrating an inode	2022-01-27 11:05:18 +01:00
mmp.c	ext4: fix potential uninitialized access to retval in kmmpd	2021-07-23 07:31:29 -04:00
move_extent.c	ext4: use common helpers in all places reading metadata buffers	2020-10-18 10:37:14 -04:00
namei.c	ext4: avoid cycles in directory h-tree	2022-06-09 10:23:20 +02:00
orphan.c	ext4: Improve scalability of ext4 orphan file handling	2021-08-30 23:36:51 -04:00
page-io.c	ext4: fix symlink file size not match to file content	2022-04-27 14:39:01 +02:00
readpage.c	block: Add bio_max_segs	2021-02-26 15:49:51 -07:00
resize.c	ext4: Support for checksumming from journal triggers	2021-08-30 23:36:50 -04:00
super.c	ext4: filter out EXT4_FC_REPLAY from on-disk superblock field s_state	2022-06-09 10:23:20 +02:00
symlink.c	ext4: report correct st_size for encrypted symlinks	2021-07-25 20:01:06 -07:00
sysfs.c	ext4: notify sysfs on errors_count value change	2021-06-29 21:06:02 -04:00
truncate.h	ext4: Convert to use mapping->invalidate_lock	2021-07-13 14:29:00 +02:00
verity.c	New features for ext4 this cycle include support for encrypted	2021-04-30 15:35:30 -07:00
xattr.c	ext4: fast commit may not fallback for ineligible commit	2022-03-08 19:12:32 +01:00
xattr.h	ext4: remove duplicate definition of ext4_xattr_ibody_inline_set()	2021-06-24 10:09:39 -04:00
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