CVE-2026-46229None▾ SunlitIn 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_CLEA…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Nov 5.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.1%
Last analysed / modified upstream
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.
Linux >= 6856e4b65f64eeb3f17148f79b36c1d60c627529 < 6bcf59545c84a5105d14d59f40069ef4c033584eLinux >= 6856e4b65f64eeb3f17148f79b36c1d60c627529 < 1db431380879fd9d28b763a88a0c0431be5be8dfLinux >= 6856e4b65f64eeb3f17148f79b36c1d60c627529 < 32b153658f017ad2f5bf8aab479e8d16ac95bc3aLinux >= 6856e4b65f64eeb3f17148f79b36c1d60c627529 < 77d0b5d11387071770246fd0185a69fa28e8e109Linux >= 6856e4b65f64eeb3f17148f79b36c1d60c627529 < 047d44d8d29a6a1a5757256837aa9dd78e3cd0b5Linux >= 6856e4b65f64eeb3f17148f79b36c1d60c627529 < ad52d61d82181dbdb7f05826de38352d5e550cc2Linux 5.4Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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