CVE-2024-26925

Public on 2024-04-25
Modified on 2024-05-02
Description
In the Linux kernel, the following vulnerability has been resolved:

netfilter: nf_tables: release mutex after nft_gc_seq_end from abort path

The commit mutex should not be released during the critical section
between nft_gc_seq_begin() and nft_gc_seq_end(), otherwise, async GC
worker could collect expired objects and get the released commit lock
within the same GC sequence.

nf_tables_module_autoload() temporarily releases the mutex to load
module dependencies, then it goes back to replay the transaction again.
Move it at the end of the abort phase after nft_gc_seq_end() is called.
Severity
Medium severity
Medium
CVSS v3 Base Score
5.5
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 1 kernel Not Affected
Amazon Linux 2 - Core kernel Not Affected
Amazon Linux 2 - Kernel-5.10 Extra kernel 2024-05-09 ALAS2KERNEL-5.10-2024-056 Fixed
Amazon Linux 2 - Kernel-5.15 Extra kernel 2024-05-09 ALAS2KERNEL-5.15-2024-042 Fixed
Amazon Linux 2 - Kernel-5.4 Extra kernel 2024-05-09 ALAS2KERNEL-5.4-2024-064 Fixed
Amazon Linux 2023 kernel 2024-05-09 ALAS2023-2024-613 Fixed

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H