Huawei EulerOS: CVE-2024-39482: kernel security update

Huawei EulerOS: CVE-2024-39482: kernel security update

Severity

5

CVSS

(AV:L/AC:L/Au:S/C:N/I:N/A:C)

Published

07/05/2024

Created

10/10/2024

Added

10/09/2024

Modified

01/30/2025

Description

In the Linux kernel, the following vulnerability has been resolved: bcache: fix variable length array abuse in btree_iter btree_iter is used in two ways: either allocated on the stack with a fixed size MAX_BSETS, or from a mempool with a dynamic size based on the specific cache set. Previously, the struct had a fixed-length array of size MAX_BSETS which was indexed out-of-bounds for the dynamically-sized iterators, which causes UBSAN to complain. This patch uses the same approach as in bcachefs's sort_iter and splits the iterator into a btree_iter with a flexible array member and a btree_iter_stack which embeds a btree_iter as well as a fixed-length data array.

Solution(s)

• huawei-euleros-2_0_sp11-upgrade-bpftool
• huawei-euleros-2_0_sp11-upgrade-kernel
• huawei-euleros-2_0_sp11-upgrade-kernel-abi-stablelists
• huawei-euleros-2_0_sp11-upgrade-kernel-tools
• huawei-euleros-2_0_sp11-upgrade-kernel-tools-libs
• huawei-euleros-2_0_sp11-upgrade-python3-perf

References

• https://attackerkb.com/topics/cve-2024-39482
• CVE - 2024-39482
• EulerOS-SA-2024-2585