Memory leak in Linux kernel events

1) Memory leak

EUVDB-ID: #VU96286

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-43870

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to memory leak within the event_sched_out() function in kernel/events/core.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

CPE2.3

External links

http://git.kernel.org/stable/c/67fad724f1b568b356c1065d50df46e6b30eb2f7
http://git.kernel.org/stable/c/70882d7fa74f0731492a0d493e8515a4f7131831
http://git.kernel.org/stable/c/05d3fd599594abf79aad4484bccb2b26e1cb0b51
http://git.kernel.org/stable/c/3d7a63352a93bdb8a1cdf29606bf617d3ac1c22a
http://git.kernel.org/stable/c/2fd5ad3f310de22836cdacae919dd99d758a1f1b

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.