#VU111552 NULL pointer dereference in Linux kernel - CVE-2025-38055

Vulnerability identifier: #VU111552

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-2025-38055

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 intel_pmu_drain_pebs_core(), intel_pmu_pebs_event_update_no_drain(), intel_pmu_drain_pebs_nhm() and intel_pmu_drain_pebs_icl() functions in arch/x86/events/intel/ds.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's repository.

Vulnerable software versions

Linux kernel: All versions

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External links
https://git.kernel.org/stable/c/0b1874a5b1173fbcb2185ab828f4c33d067e551e
https://git.kernel.org/stable/c/99bcd91fabada0dbb1d5f0de44532d8008db93c6
https://git.kernel.org/stable/c/ca51db23166767a8445deb8331c9b8d5205d9287

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?