CVE-2026-80576

CVE CVE-2026-80576EUVD EUVD-2026-66491Published 2026-08-26T14:37:35.000ZLast changed 2026-08-27T05:01:58.000ZCVSS 8.8

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: reject oversized IBs with per-ring packet limits On GFX rings, amdgpu_cs_p2_ib() passed user-supplied ib_bytes through to ib->length_dw without a limit, while ring_emit_ib() encodes length into packet fields. Oversized values can corrupt adjacent control bits and destabilize command submission. Add a per-ring IB packet size limit helper and reject command submissions exceeding the corresponding dword limit before IB allocation. Use the documented 20-bit limit for GFX/compute/SDMA/VPE, and apply the MM fallback limit for other ring types. (cherry picked from commit 7f48fa2cf62e3fa6c9c3870aa74988f773247e52)

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <07fe270ec07c138a70afe7a81e115a85c35c545c; d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <1474f3970d1afd303e12ff14d06808eabb371576; patch: 7.1.10; patch: 0; d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <6e164ba1057175fb8a370d8e05cbff5c57eac0c8; patch: 7.2; d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <fd37f9dd5b5ab70a46fa7bc76623c0528d602b27; patch: 6.18.46; 4.2; patch: 6.12.105

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

Linux — Linux

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