Integer Overflow or Wraparound Affecting kernel-coco_debug-devel package, versions <6.4.0-15061.6.coco15sp6.1


Severity

Recommended
medium

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-SLES156-KERNELCOCODEBUGDEVEL-8169436
  • published9 Oct 2024
  • disclosed8 Oct 2024

Introduced: 8 Oct 2024

CVE-2024-43890  (opens in a new tab)
CWE-190  (opens in a new tab)
First added by Snyk

How to fix?

Upgrade SLES:15.6 kernel-coco_debug-devel to version 6.4.0-15061.6.coco15sp6.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-coco_debug-devel package and not the kernel-coco_debug-devel package as distributed by SLES. See How to fix? for SLES:15.6 relevant fixed versions and status.

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".

CVSS Scores

version 3.1