CVE-2026-46229
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/amdkfd: Clear VRAM on allocation to prevent stale data exposure
In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Clear VRAM on allocation to prevent stale data exposure KFD VRAM allocations set AMDGPU_GEM_CREATE_VRAM_WIPE_ON_RELEASE but not AMDGPU_GEM_CREATE_VRAM_CLEARED, leaving freshly allocated VRAM with stale data from prior use observable by compute kernels. The GEM ioctl path already sets VRAM_CLEARED for all userspace allocations via amdgpu_gem_create_ioctl() and amdgpu_mode_dumb_create(). The KFD path was missing this flag, allowing stale page table remnants to leak into user buffers. This causes crashes in RCCL P2P transport where non-zero data in ptrExchange/head/tail fields corrupts the protocol handshake.
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) |
|---|---|---|---|---|---|
| 6856e4b65f64eeb3f17148f79b36c1d60c627529 | affected | git | 1db431380879fd9d28b763a88a0c0431be5be8df | Unavailable | None listed |
| 6856e4b65f64eeb3f17148f79b36c1d60c627529 | affected | git | 32b153658f017ad2f5bf8aab479e8d16ac95bc3a | Unavailable | None listed |
| 6856e4b65f64eeb3f17148f79b36c1d60c627529 | affected | git | 77d0b5d11387071770246fd0185a69fa28e8e109 | Unavailable | None listed |
| 6856e4b65f64eeb3f17148f79b36c1d60c627529 | affected | git | 047d44d8d29a6a1a5757256837aa9dd78e3cd0b5 | Unavailable | None listed |
| 6856e4b65f64eeb3f17148f79b36c1d60c627529 | affected | git | ad52d61d82181dbdb7f05826de38352d5e550cc2 | 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) |
|---|---|---|---|---|---|
| 5.4 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.4 | Unavailable | None listed |
| 6.6.140 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.90 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.32 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.0.9 | unaffected | semver | Unavailable | 7.0.* | None listed |
| 7.1 | unaffected | original_commit_for_fix | Unavailable | * | None listed |