CVE-2026-80539
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
drm/amdgpu: disallow multiple FENCE chunks in one submit
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: disallow multiple FENCE chunks in one submit amdgpu_cs_pass1() dispatches on chunk_id once per chunk without rejecting repeated ids. p->uf_bo is a single-slot field, so a submission carrying two AMDGPU_CHUNK_ID_FENCE chunks runs amdgpu_cs_p1_user_fence() twice, and the second run overwrites p->uf_bo with a freshly referenced BO without dropping the reference taken by the first. amdgpu_cs_parser_fini() only unrefs the final p->uf_bo, so every FENCE chunk but the last leaks a BO reference. The leaked BO outlives handle close and process exit. Reject duplicate FENCE chunks the same way commit fec5f8e8c6bc ("drm/amdgpu: disallow multiple BO_HANDLES chunks in one submit") did for p->bo_list. (cherry picked from commit 665b1fc2a1845206408f9a2c6da67101789edb82)
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| d38ceaf99ed015f2a0b9af3499791bd3a3daae21 | affected | git | 7e9954e7212042ec808b06181b365b14f00c6f0a | Unavailable | None listed |
| d38ceaf99ed015f2a0b9af3499791bd3a3daae21 | affected | git | 070229262ede37d17c4ea596650deb6e5eb5d106 | Unavailable | None listed |
| d38ceaf99ed015f2a0b9af3499791bd3a3daae21 | affected | git | 5f46322e0b84af29e10eb951ff45bd6ea40640de | Unavailable | None listed |
| d38ceaf99ed015f2a0b9af3499791bd3a3daae21 | affected | git | 71aa45f7bfe46fbc6f51e7832573ff49b6005fea | Unavailable | None listed |
| d38ceaf99ed015f2a0b9af3499791bd3a3daae21 | affected | git | e3ee74d6dbbe409eb99546a7b0a02b2782f9021d | Unavailable | None listed |
| d38ceaf99ed015f2a0b9af3499791bd3a3daae21 | affected | git | 931cd1d1baeae68e8eb2c23bc1f3d8934dca6241 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.2 | Unavailable | None listed |
| 6.1.185 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.153 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.105 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.46 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.10 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |