CVE-2024-40972 Affecting kernel-doc package, versions <0:5.14.0-427.42.1.el9_4


Severity

Recommended
medium

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.05% (18th percentile)

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  • Snyk IDSNYK-ORACLE9-KERNELDOC-8320399
  • published1 Nov 2024
  • disclosed12 Jul 2024

Introduced: 12 Jul 2024

CVE-2024-40972  (opens in a new tab)

How to fix?

Upgrade Oracle:9 kernel-doc to version 0:5.14.0-427.42.1.el9_4 or higher.
This issue was patched in ELSA-2024-8617.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-doc package and not the kernel-doc package as distributed by Oracle. See How to fix? for Oracle:9 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

ext4: do not create EA inode under buffer lock

ext4_xattr_set_entry() creates new EA inodes while holding buffer lock on the external xattr block. This is problematic as it nests all the allocation locking (which acquires locks on other buffers) under the buffer lock. This can even deadlock when the filesystem is corrupted and e.g. quota file is setup to contain xattr block as data block. Move the allocation of EA inode out of ext4_xattr_set_entry() into the callers.

CVSS Scores

version 3.1