{
  "public_date" : "2026-05-28T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: drm/amdkfd: Clear VRAM on allocation to prevent stale data exposure",
    "id" : "2482643",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2482643"
  },
  "cwe" : "CWE-909",
  "details" : [ "In the Linux kernel, the following vulnerability has been resolved:\ndrm/amdkfd: Clear VRAM on allocation to prevent stale data exposure\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.\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.\nThis causes crashes in RCCL P2P transport where non-zero data in\nptrExchange/head/tail fields corrupts the protocol handshake.", "A flaw was found in the Linux kernel's drm/amdkfd component. This vulnerability arises because VRAM (Video Random Access Memory) allocations for the KFD (Kernel Fusion Driver) path do not properly clear previously used memory. This oversight allows a local attacker, utilizing a compute kernel, to observe stale data from prior VRAM usage, leading to information disclosure. Additionally, this issue can cause system instability and crashes during operations such as RCCL P2P transport." ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Not affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Not affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Not affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2026-46229\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-46229\nhttps://lore.kernel.org/linux-cve-announce/2026052839-CVE-2026-46229-e297@gregkh/T" ],
  "name" : "CVE-2026-46229",
  "csaw" : false
}