vulnerability

Red Hat: CVE-2024-36918: kernel: bpf: Check bloom filter map value size

Severity
4
CVSS
(AV:L/AC:L/Au:M/C:N/I:N/A:C)
Published
May 30, 2024
Added
Jul 9, 2025
Modified
Jul 10, 2025

Description

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

bpf: Check bloom filter map value size

This patch adds a missing check to bloom filter creating, rejecting
values above KMALLOC_MAX_SIZE. This brings the bloom map in line with
many other map types.

The lack of this protection can cause kernel crashes for value sizes
that overflow int's. Such a crash was caught by syzkaller. The next
patch adds more guard-rails at a lower level.

Solution

no-fix-redhat-rpm-package
Title
NEW

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