{"id":"CVE-2026-46229","summary":"drm/amdkfd: Clear VRAM on allocation to prevent stale data exposure","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: Clear VRAM on allocation to prevent stale data exposure\n\nKFD VRAM allocations set AMDGPU_GEM_CREATE_VRAM_WIPE_ON_RELEASE\nbut not AMDGPU_GEM_CREATE_VRAM_CLEARED, leaving freshly allocated\nVRAM with stale data from prior use observable by compute kernels.\n\nThe GEM ioctl path already sets VRAM_CLEARED for all userspace\nallocations via amdgpu_gem_create_ioctl() and\namdgpu_mode_dumb_create(). The KFD path was missing this flag,\nallowing stale page table remnants to leak into user buffers.\n\nThis causes crashes in RCCL P2P transport where non-zero data in\nptrExchange/head/tail fields corrupts the protocol handshake.","modified":"2026-07-11T09:29:24.893999857Z","published":"2026-05-28T09:40:51.300Z","related":["SUSE-SU-2026:22521-1","SUSE-SU-2026:22522-1","SUSE-SU-2026:2799-1","SUSE-SU-2026:2800-1","SUSE-SU-2026:2840-1","SUSE-SU-2026:2841-1","openSUSE-SU-2026:10954-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46229.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/047d44d8d29a6a1a5757256837aa9dd78e3cd0b5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/1db431380879fd9d28b763a88a0c0431be5be8df"},{"type":"WEB","url":"https://git.kernel.org/stable/c/32b153658f017ad2f5bf8aab479e8d16ac95bc3a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/77d0b5d11387071770246fd0185a69fa28e8e109"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ad52d61d82181dbdb7f05826de38352d5e550cc2"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46229.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-46229"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"6856e4b65f64eeb3f17148f79b36c1d60c627529"},{"fixed":"1db431380879fd9d28b763a88a0c0431be5be8df"},{"fixed":"32b153658f017ad2f5bf8aab479e8d16ac95bc3a"},{"fixed":"77d0b5d11387071770246fd0185a69fa28e8e109"},{"fixed":"047d44d8d29a6a1a5757256837aa9dd78e3cd0b5"},{"fixed":"ad52d61d82181dbdb7f05826de38352d5e550cc2"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46229.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.4.0"},{"fixed":"6.6.140"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.90"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.32"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.0.9"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46229.json"}}],"schema_version":"1.7.5"}