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VulnerabilityPublished Updated

CVE-2026-46229: Linux kernel · drm/amdkfd: Clear VRAM on allocation to prevent stale data exposure

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in ad52d61d82181dbdb7f05826de38352d5e550cc2 : update Linux kernel when convenient.

Data as of 30 Oct 2026, 12:36 UTC

Severity
Medium

Rated Medium by Threat Radar's AI analysis · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none
Patch
Available – fixed in ad52d61d82181dbdb7f05826de38352d5e550cc2, 77d0b5d11387071770246fd0185a69fa28e8e109, 047d44d8d29a6a1a5757256837aa9dd78e3cd0b5 +3

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 28 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 6856e4b65f64eeb3f17148f79b36c1d60c627529, < ad52d61d82181dbdb7f05826de38352d5e550cc2
Fixed in
  • ad52d61d82181dbdb7f05826de38352d5e550cc2
LinuxLinuxAffected
  • ≥ 6856e4b65f64eeb3f17148f79b36c1d60c627529, < 77d0b5d11387071770246fd0185a69fa28e8e109
Fixed in
  • 77d0b5d11387071770246fd0185a69fa28e8e109
LinuxLinuxAffected
  • ≥ 6856e4b65f64eeb3f17148f79b36c1d60c627529, < 047d44d8d29a6a1a5757256837aa9dd78e3cd0b5
Fixed in
  • 047d44d8d29a6a1a5757256837aa9dd78e3cd0b5
LinuxLinuxAffected
  • ≥ 6856e4b65f64eeb3f17148f79b36c1d60c627529, < 32b153658f017ad2f5bf8aab479e8d16ac95bc3a
Fixed in
  • 32b153658f017ad2f5bf8aab479e8d16ac95bc3a
LinuxLinuxAffected
  • ≥ 6856e4b65f64eeb3f17148f79b36c1d60c627529, < 6bcf59545c84a5105d14d59f40069ef4c033584e
Fixed in
  • 6bcf59545c84a5105d14d59f40069ef4c033584e
LinuxLinuxAffected
  • ≥ 6856e4b65f64eeb3f17148f79b36c1d60c627529, < 1db431380879fd9d28b763a88a0c0431be5be8df
Fixed in
  • 1db431380879fd9d28b763a88a0c0431be5be8df

AI-suggested

A fix is available and has been applied in the Linux kernel source as indicated by the fixed commit versions. Users should update to a Linux kernel version that includes these fixes to prevent stale VRAM data exposure and related crashes.

Description

A vulnerability in the Linux kernel's AMD KFD VRAM allocation was fixed to prevent exposure of stale data. Previously, VRAM allocated via the KFD path did not clear old data, allowing residual information from prior use to be visible to compute kernels. This could cause crashes in RCCL P2P transport due to corrupted protocol handshake fields.

References

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