CVE-2024-39494

HIGH

Linux Kernel - Use-After-Free in IMA Dentry Name Handling

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: ima: Fix use-after-free on a dentry's dname.name ->d_name.name can change on rename and the earlier value can be freed; there are conditions sufficient to stabilize it (->d_lock on dentry, ->d_lock on its parent, ->i_rwsem exclusive on the parent's inode, rename_lock), but none of those are met at any of the sites. Take a stable snapshot of the name instead.

References (9)

Core 9

Scores

CVSS v3 7.8
EPSS 0.0001
EPSS Percentile 1.7%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-416
Status published
Products (24)
debian/debian_linux 11.0
linux/Kernel 3.7.0 - 5.4.291linux
linux/Kernel 5.11.0 - 5.15.174linux
linux/Kernel 5.16.0 - 6.1.97linux
linux/Kernel 5.5.0 - 5.10.235linux
linux/Kernel 6.2.0 - 6.6.35linux
linux/Kernel 6.7.0 - 6.9.6linux
Linux/Linux < 3.7
Linux/Linux 2fe5d6def1672ae6635dd71867bf36dcfaa7434b - 0b31e28fbd773aefb6164687e0767319b8199829
Linux/Linux 2fe5d6def1672ae6635dd71867bf36dcfaa7434b - 480afcbeb7aaaa22677d3dd48ec590b441eaac1a
... and 14 more
Published Jul 12, 2024
Tracked Since Feb 18, 2026