CVE-2021-47340
Assigner: Linux
Published: 2024-05-21T14:35:48.342Z
State: PUBLISHED
descriptions: value: In the Linux kernel, the following vulnerability has been resolved:

jfs: fix GPF in diFree

Avoid passing inode with
JFS_SBI(inode->i_sb)->ipimap == NULL to
diFree()[1]. GFP will appear:

	struct inode *ipimap = JFS_SBI(ip->i_sb)->ipimap;
	struct inomap *imap = JFS_IP(ipimap)->i_imap;

JFS_IP() will return invalid pointer when ipimap == NULL

Call Trace:
 diFree+0x13d/0x2dc0 fs/jfs/jfs_imap.c:853 [1]
 jfs_evict_inode+0x2c9/0x370 fs/jfs/inode.c:154
 evict+0x2ed/0x750 fs/inode.c:578
 iput_final fs/inode.c:1654 [inline]
 iput.part.0+0x3fe/0x820 fs/inode.c:1680
 iput+0x58/0x70 fs/inode.c:1670
affected: product: Linux
vendor: Linux
defaultStatus: unaffected
repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
versions: version: 1da177e4c3f4
lessThan: 7bde24bde490
status: affected
versionType: git
version: 1da177e4c3f4
lessThan: 745c9a59422c
status: affected
versionType: git
version: 1da177e4c3f4
lessThan: 49def1b06448
status: affected
versionType: git
version: 1da177e4c3f4
lessThan: aff8d95b6905
status: affected
versionType: git
version: 1da177e4c3f4
lessThan: a21e5cb1a64c
status: affected
versionType: git
version: 1da177e4c3f4
lessThan: 801893695036
status: affected
versionType: git
version: 1da177e4c3f4
lessThan: 3bb27e272402
status: affected
versionType: git
version: 1da177e4c3f4
lessThan: 42f102ea1943
status: affected
versionType: git
version: 1da177e4c3f4
lessThan: 9d574f985fe3
status: affected
versionType: git
product: Linux
vendor: Linux
defaultStatus: affected
repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
versions: version: 4.4.276
lessThanOrEqual: 4.4.*
status: unaffected
versionType: custom
version: 4.9.276
lessThanOrEqual: 4.9.*
status: unaffected
versionType: custom
version: 4.14.240
lessThanOrEqual: 4.14.*
status: unaffected
versionType: custom
version: 4.19.198
lessThanOrEqual: 4.19.*
status: unaffected
versionType: custom
version: 5.4.133
lessThanOrEqual: 5.4.*
status: unaffected
versionType: custom
version: 5.10.51
lessThanOrEqual: 5.10.*
status: unaffected
versionType: custom
version: 5.12.18
lessThanOrEqual: 5.12.*
status: unaffected
versionType: custom
version: 5.13.3
lessThanOrEqual: 5.13.*
status: unaffected
versionType: custom
version: 5.14
lessThanOrEqual: *
status: unaffected
versionType: original_commit_for_fix
title: jfs: fix GPF in diFree
x_generator: engine: bippy-d175d3acf727