CVE-2023-53077

drm/amd/display: fix shift-out-of-bounds in CalculateVMAndRowBytes

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: fix shift-out-of-bounds in CalculateVMAndRowBytes [WHY] When PTEBufferSizeInRequests is zero, UBSAN reports the following warning because dml_log2 returns an unexpected negative value: shift exponent 4294966273 is too large for 32-bit type 'int' [HOW] In the case PTEBufferSizeInRequests is zero, skip the dml_log2() and assign the result directly.

N/A

CVSS

Severity:

EPSS 0.02%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/7257070be70e19a9138f39009c1a26c83a8a7cfa
https://git.kernel.org/stable/c/bec1bea2fa974e63f6059c33edde669c7894d0bc
https://git.kernel.org/stable/c/a16394b5d661afec9a264fecac3abd87aea439ea
https://git.kernel.org/stable/c/e12b95680821b9880cd9992c0f3555389363604f
https://git.kernel.org/stable/c/031f196d1b1b6d5dfcb0533b431e3ab1750e6189

Frequently Asked Questions

What is the severity of CVE-2023-53077?: CVE-2023-53077 has not yet been assigned a CVSS score.
How to fix CVE-2023-53077?: To fix CVE-2023-53077, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-53077 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2023-53077 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-53077?: CVE-2023-53077 affects Linux Linux, Linux Linux.

This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.