CVE-2026-46229

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.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/047d44d8d29a6a1a5757256837aa9dd78e3cd0b5	Patch
https://git.kernel.org/stable/c/1db431380879fd9d28b763a88a0c0431be5be8df	Patch
https://git.kernel.org/stable/c/32b153658f017ad2f5bf8aab479e8d16ac95bc3a	Patch
https://git.kernel.org/stable/c/77d0b5d11387071770246fd0185a69fa28e8e109	Patch
https://git.kernel.org/stable/c/ad52d61d82181dbdb7f05826de38352d5e550cc2	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

No history.

Information

Published : 2026-05-28 10:16

Updated : 2026-06-17 10:53

NVD link : CVE-2026-46229

Mitre link : CVE-2026-46229

CVE.ORG link : CVE-2026-46229

JSON object : View

Products Affected

linux

linux_kernel

CWE

NVD-CWE-noinfo

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