Answer in brief
CVE-2026-46229 records a Medium severity (CVSS 5.5) vulnerability in drm/amdkfd: Clear VRAM on allocation to prevent stale data exposure. The current sources do not mark it as known exploited. The current feed maps 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 5.5. 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). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=6856e4b65f64eeb3f17148f79b36c1d60c627529 <6bcf59545c84a5105d14d59f40069ef4c033584e || >=6856e4b65f64eeb3f17148f79b36c1d60c627529 <1db431380879fd9d28b763a88a0c0431be5be8df || >=6856e4b65f64eeb3f17148f79b36c1d60c627529 <32b153658f017ad2f5bf8aab479e8d16ac95bc3a || >=6856e4b65f64eeb3f17148f79b36c1d60c627529 <77d0b5d11387071770246fd0185a69fa28e8e109 || >=6856e4b65f64eeb3f17148f79b36c1d60c627529 <047d44d8d29a6a1a5757256837aa9dd78e3cd0b5 || >=6856e4b65f64eeb3f17148f79b36c1d60c627529 <ad52d61d82181dbdb7f05826de38352d5e550cc2 | 6bcf59545c84a5105d14d59f40069ef4c033584e, 1db431380879fd9d28b763a88a0c0431be5be8df, 32b153658f017ad2f5bf8aab479e8d16ac95bc3a, 77d0b5d11387071770246fd0185a69fa28e8e109, 047d44d8d29a6a1a5757256837aa9dd78e3cd0b5, ad52d61d82181dbdb7f05826de38352d5e550cc2 |
| Linux/Linuxgeneric | 5.4 | Not reported |
Published upstream
May 28, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 30, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 30, 2026
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.
Quoted source text, attributed separately from HOL analysis.