CVE-2026-53315

In the Linux kernel, the following vulnerability has been resolved: drm/amd/ras: Fix NULL deref in ras_core_get_utc_second_timestamp() ras_core_get_utc_second_timestamp() retrieves the current UTC timestamp (in seconds since the Unix epoch) through a platform-specific RAS system callback and is used for timestamping RAS error events. The function checks ras_core in the conditional statement before calling the sys_fn callback. However, when the condition fails, the function prints an error message using ras_core->dev. If ras_core is NULL, this can lead to a potential NULL pointer dereference when accessing ras_core->dev. Add an early NULL check for ras_core at the beginning of the function and return 0 when the pointer is not valid. This prevents the dereference and makes the control flow clearer.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/2b8101cc3b34d4d80d799360d2744829d5964479	Patch
https://git.kernel.org/stable/c/6c84f7f0afc415691ffa7d48aa7ce1d8e6083032	Patch

Configurations

Configuration 1 (hide)

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

History

06 Jul 2026, 20:13

Type	Values Removed	Values Added
First Time		Linux linux Kernel Linux
CPE		cpe:2.3:o:linux:linux_kernel::::::::
CWE		CWE-476
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 5.5
References	~~() https://git.kernel.org/stable/c/2b8101cc3b34d4d80d799360d2744829d5964479 -~~	() https://git.kernel.org/stable/c/2b8101cc3b34d4d80d799360d2744829d5964479 - Patch
References	~~() https://git.kernel.org/stable/c/6c84f7f0afc415691ffa7d48aa7ce1d8e6083032 -~~	() https://git.kernel.org/stable/c/6c84f7f0afc415691ffa7d48aa7ce1d8e6083032 - Patch

26 Jun 2026, 20:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-06-26 20:17

Updated : 2026-07-06 20:13

NVD link : CVE-2026-53315

Mitre link : CVE-2026-53315

CVE.ORG link : CVE-2026-53315

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-476

NULL Pointer Dereference

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