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NVD description
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)
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
AVAILABLE
Momentum
STABLE
| Date | Total | Labels |
|---|
| 2026-08-26 | 1 | General1 |
| 2026-08-28 | 1 | Patch1 |
CVE-2026-80576 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() pas… https://www.cve.org/CVERecord?id=CVE-2026-80576
Post summary
CVE-2026-80576, a bug in Linux kernel’s amdgpu driver that rejected oversized IBs due to per‑ring packet limits, has been fixed and is no longer a vulnerability.
CVE-2026-80576 Linux Kernel amdgpu Driver Vulnerability https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-80576
Post summary
The text simply references an amdgpu driver vulnerability in the Linux kernel via a link, without providing technical details, exploit information, or mitigation guidance.