Answer in brief
CVE-2026-80576 records a High severity (CVSS 8.8) vulnerability in drm/amdgpu: reject oversized IBs with per-ring packet limits. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <6e164ba1057175fb8a370d8e05cbff5c57eac0c8 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <1474f3970d1afd303e12ff14d06808eabb371576 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <07fe270ec07c138a70afe7a81e115a85c35c545c || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <fd37f9dd5b5ab70a46fa7bc76623c0528d602b27 || >=0 <6.12.105 || >=0 <6.18.46 || >=0 <7.1.10 | 6e164ba1057175fb8a370d8e05cbff5c57eac0c8, 1474f3970d1afd303e12ff14d06808eabb371576, 07fe270ec07c138a70afe7a81e115a85c35c545c, fd37f9dd5b5ab70a46fa7bc76623c0528d602b27, 6.12.105, 6.18.46, 7.1.10 |
| Linux/Linuxgeneric | >=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <6e164ba1057175fb8a370d8e05cbff5c57eac0c8 || >=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <1474f3970d1afd303e12ff14d06808eabb371576 || >=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <07fe270ec07c138a70afe7a81e115a85c35c545c || >=d38ceaf99ed015f2a0b9af3499791bd3a3daae21 <fd37f9dd5b5ab70a46fa7bc76623c0528d602b27 | 6e164ba1057175fb8a370d8e05cbff5c57eac0c8, 1474f3970d1afd303e12ff14d06808eabb371576, 07fe270ec07c138a70afe7a81e115a85c35c545c, fd37f9dd5b5ab70a46fa7bc76623c0528d602b27 |
| Linux/Linuxgeneric | 4.2 | Not reported |
Published upstream
Aug 26, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 26, 2026
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)
Quoted source text, attributed separately from HOL analysis.