vulnerability

Amazon Linux AMI: CVE-2024-39494: Security patch for kernel (ALAS-2024-1947)

Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
Jul 12, 2024
Added
Oct 4, 2024
Modified
May 21, 2025

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.

Solution

amazon-linux-upgrade-kernel
Title
NEW

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