CVE-2026-89814
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: clamp the isolation index for rings outside a partition
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: clamp the isolation index for rings outside a partition adev->isolation[] has one slot per partition, but a ring that is not assigned to one keeps AMDGPU_XCP_NO_PARTITION, which is ~0, so indexing the array with it is out of bounds. SDMA submissions hit this on both the isolation enforcement and the VM flush path and trip UBSAN. Fall back to the first slot the way the cleaner shader path already does, and stop taking the address before the ring type check that makes it relevant.
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) |
|---|---|---|---|---|---|
| bd22e44ad415ac22e3a4f9a983d2a085f6cb4427 | affected | git | 964de255497ffd7cb8a86e405b8ac6d927e7e177 | Unavailable | None listed |
| bd22e44ad415ac22e3a4f9a983d2a085f6cb4427 | affected | git | 0bfb938182d1313e5cac32ae38dbaaa4eabe4af4 | Unavailable | None listed |
| bd22e44ad415ac22e3a4f9a983d2a085f6cb4427 | affected | git | b30900566642ceb2c9e12b56c2afec28d0fd91a0 | Unavailable | None listed |
| 4277dc1942a8979abe1ef2b55069f42497f885c0 | affected | git | Unavailable | Unavailable | None listed |
| 6.14.9 | affected | semver | 6.15 | 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) |
|---|---|---|---|---|---|
| 6.15 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.15 | Unavailable | None listed |
| 6.18.51 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2.5 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |