#VU97517 NULL pointer dereference in Linux kernel - CVE-2024-46788

Vulnerability identifier: #VU97517

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-46788

CWE-ID: CWE-476

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

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

The vulnerability exists due to NULL pointer dereference within the osnoise_migration_pending(), stop_kthread(), start_kthread() and start_per_cpu_kthreads() functions in kernel/trace/trace_osnoise.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

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External links
https://git.kernel.org/stable/c/7a5f01828edf152c144d27cf63de446fdf2dc222
https://git.kernel.org/stable/c/27282d2505b402f39371fd60d19d95c01a4b6776
https://git.kernel.org/stable/c/177e1cc2f41235c145041eed03ef5bab18f32328

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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.