Huawei EulerOS: CVE-2024-43890: kernel security update

Huawei EulerOS: CVE-2024-43890: kernel security update

Severity

5

CVSS

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

Published

08/26/2024

Created

11/12/2024

Added

11/11/2024

Modified

01/30/2025

Description

In the Linux kernel, the following vulnerability has been resolved: tracing: Fix overflow in get_free_elt() "tracing_map->next_elt" in get_free_elt() is at risk of overflowing. Once it overflows, new elements can still be inserted into the tracing_map even though the maximum number of elements (`max_elts`) has been reached. Continuing to insert elements after the overflow could result in the tracing_map containing "tracing_map->max_size" elements, leaving no empty entries. If any attempt is made to insert an element into a full tracing_map using `__tracing_map_insert()`, it will cause an infinite loop with preemption disabled, leading to a CPU hang problem. Fix this by preventing any further increments to "tracing_map->next_elt" once it reaches "tracing_map->max_elt".

Solution(s)

• huawei-euleros-2_0_sp9-upgrade-kernel
• huawei-euleros-2_0_sp9-upgrade-kernel-tools
• huawei-euleros-2_0_sp9-upgrade-kernel-tools-libs
• huawei-euleros-2_0_sp9-upgrade-python3-perf

References

• https://attackerkb.com/topics/cve-2024-43890
• CVE - 2024-43890
• EulerOS-SA-2024-2832