CVE-2024-40952 — NULL Pointer Dereference in Linux
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 89.88%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedJul 12
Latest updateSep 23
Description
In the Linux kernel, the following vulnerability has been resolved:
ocfs2: fix NULL pointer dereference in ocfs2_journal_dirty()
bdev->bd_super has been removed and commit 8887b94d9322 change the usage
from bdev->bd_super to b_assoc_map->host->i_sb. This introduces the
following NULL pointer dereference in ocfs2_journal_dirty() since
b_assoc_map is still not initialized. This can be easily reproduced by
running xfstests generic/186, which simulate no more credits.
[ 134.351592] BUG: kernel NU…
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6