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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.

PUBLISHED Reserved 2025-05-02 | Published 2025-05-02 | Updated 2026-05-11 | Assigner Linux

Product status

Default status
unaffected

6725a88f88a7e922e91c45bf83d320487810c192 (git) before 7257070be70e19a9138f39009c1a26c83a8a7cfa
affected

6725a88f88a7e922e91c45bf83d320487810c192 (git) before bec1bea2fa974e63f6059c33edde669c7894d0bc
affected

6725a88f88a7e922e91c45bf83d320487810c192 (git) before a16394b5d661afec9a264fecac3abd87aea439ea
affected

6725a88f88a7e922e91c45bf83d320487810c192 (git) before e12b95680821b9880cd9992c0f3555389363604f
affected

6725a88f88a7e922e91c45bf83d320487810c192 (git) before 031f196d1b1b6d5dfcb0533b431e3ab1750e6189
affected

Default status
affected

5.9
affected

Any version before 5.9
unaffected

5.10.176 (semver)
unaffected

5.15.104 (semver)
unaffected

6.1.21 (semver)
unaffected

6.2.8 (semver)
unaffected

6.3 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/7257070be70e19a9138f39009c1a26c83a8a7cfa

git.kernel.org/...c/bec1bea2fa974e63f6059c33edde669c7894d0bc

git.kernel.org/...c/a16394b5d661afec9a264fecac3abd87aea439ea

git.kernel.org/...c/e12b95680821b9880cd9992c0f3555389363604f

git.kernel.org/...c/031f196d1b1b6d5dfcb0533b431e3ab1750e6189

cve.org (CVE-2023-53077)

nvd.nist.gov (CVE-2023-53077)

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