CVE-2026-46218

drm/amdgpu: Add bounds checking to ib_{get,set}_value

State: Published
Severity: 7.1 High
Published: May 28, 2026
Updated: Aug 5, 2026
Reserved: May 13, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

drm/amdgpu: Add bounds checking to ib_{get,set}_value

The uvd/vce/vcn code accesses the IB at predefined offsets without checking that the IB is large enough. Check the bounds here. The caller is responsible for making sure it can handle arbitrary return values.

Also make the idx a uint32_t to prevent overflows causing the condition to fail.

Scores

CVSS	Score	Vector	Source
3.1	7.1 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	d38ceaf99ed015f2a0b9af3499791bd3a3daae21 to before 5da6c6430be0acb25b4242bce0323fc514d4e3cfAffected d38ceaf99ed015f2a0b9af3499791bd3a3daae21 to before 0fb5cb556b249b2b64c0f818136c4c3e838ef53fAffected d38ceaf99ed015f2a0b9af3499791bd3a3daae21 to before a853178d23e774adfe3a35073c375b04b3b20f7dAffected d38ceaf99ed015f2a0b9af3499791bd3a3daae21 to before fec8b11b55e53ff51a741e56894fe331a516f5c6Affected d38ceaf99ed015f2a0b9af3499791bd3a3daae21 to before ee26fcf7c5cf131f0b6a732faa27d79ec61b8ec7Affected d38ceaf99ed015f2a0b9af3499791bd3a3daae21 to before 66085e206431ef88ce36f53c1f53d570790ccc9eAffected
LinuxLinux	4.2Affected before 4.2Not affected 6.1.175 through 6.1.Not affected 6.6.140 through 6.6.Not affected 6.12.90 through 6.12.Not affected 6.18.32 through 6.18.Not affected 7.0.9 through 7.0.*Not affected 7.1 and laterNot affected

Product

Versions

LinuxLinux

d38ceaf99ed015f2a0b9af3499791bd3a3daae21 to before 5da6c6430be0acb25b4242bce0323fc514d4e3cfAffected
d38ceaf99ed015f2a0b9af3499791bd3a3daae21 to before 0fb5cb556b249b2b64c0f818136c4c3e838ef53fAffected
d38ceaf99ed015f2a0b9af3499791bd3a3daae21 to before a853178d23e774adfe3a35073c375b04b3b20f7dAffected
d38ceaf99ed015f2a0b9af3499791bd3a3daae21 to before fec8b11b55e53ff51a741e56894fe331a516f5c6Affected
d38ceaf99ed015f2a0b9af3499791bd3a3daae21 to before ee26fcf7c5cf131f0b6a732faa27d79ec61b8ec7Affected
d38ceaf99ed015f2a0b9af3499791bd3a3daae21 to before 66085e206431ef88ce36f53c1f53d570790ccc9eAffected

LinuxLinux

4.2Affected
before 4.2Not affected
6.1.175 through 6.1.*Not affected
6.6.140 through 6.6.*Not affected
6.12.90 through 6.12.*Not affected
6.18.32 through 6.18.*Not affected
7.0.9 through 7.0.*Not affected
7.1 and laterNot affected

References

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