310 lines
16 KiB
JSON
310 lines
16 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-43370",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2026-05-01T14:12:56.006Z",
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"datePublished": "2026-05-08T14:21:21.926Z",
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"dateUpdated": "2026-10-19T19:16:27.897Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-08-05T12:27:32.528Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: Fix use-after-free race in VM acquire\n\nReplace non-atomic vm->process_info assignment with cmpxchg()\nto prevent race when parent/child processes sharing a drm_file\nboth try to acquire the same VM after fork().\n\n(cherry picked from commit c7c573275ec20db05be769288a3e3bb2250ec618)"
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"baseScore": 7.8,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"value": "AV:L - The vulnerable path is reached through local AMD KFD/amdgpu device ioctls, especially acquiring an amdgpu render-node VM through /dev/kfd. No network or physical-device packet path reaches this code.\nAC:L - The race is between attacker-controlled processes sharing the same drm_file after fork and issuing concurrent VM-acquire operations. Because the attacker controls both sides of the race, this is low complexity.\nPR:L - An unprivileged local user with access to /dev/kfd and the amdgpu render node can issue the relevant ioctls; no real root or init-namespace capability check is required. This is basic local user access rather than administrative privilege.\nUI:N - Exploitation does not require a victim user action after the attacker has local execution and device access. The attacker can open the device files, fork, and invoke the ioctls directly.\nS:U - The bug corrupts kernel driver state within the same kernel security authority. It is a standard local kernel memory-corruption/privilege-escalation scenario, not a VM escape or other scope change.\nC:H - The non-atomic VM ownership assignment can leave stale amdkfd_process_info references and cause a kernel use-after-free. Following kernel UAF scoring guidance, this can be leveraged for high-impact information disclosure.\nI:H - The freed process_info object contains list, mutex, fence, and process state used later by KFD/GPUVM paths, making this kernel memory corruption. A defensible worst case is arbitrary kernel memory modification or control-flow influence.\nA:H - Even without full exploitation, the UAF and associated list/lifetime corruption can crash or hang the kernel. Kernel oops/panic-level denial of service is high availability impact."
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}
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]
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c"
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],
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"versions": [
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{
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"lessThan": "ae87aea330c24f462fc7058ed543ba8bc6798447",
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"status": "affected",
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},
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{
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"version": "ede0dd86f45adf2b7083bb161f6bc81da5fe2bad",
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"lessThan": "46d309996bd9251792d7dafdbaf615cf202b4447",
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"status": "affected",
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},
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{
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"status": "affected",
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},
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{
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"version": "ede0dd86f45adf2b7083bb161f6bc81da5fe2bad",
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"lessThan": "c658c1c85ec235b7ecfbf8dbfee385b1332088f4",
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"status": "affected",
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},
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{
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"version": "ede0dd86f45adf2b7083bb161f6bc81da5fe2bad",
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"lessThan": "904025fa8bba1d028adade33346372b4ac1a9249",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "ede0dd86f45adf2b7083bb161f6bc81da5fe2bad",
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"lessThan": "7885eb335d8f9e9942925d57e300a85e3f82ded4",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "ede0dd86f45adf2b7083bb161f6bc81da5fe2bad",
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"lessThan": "94b7782d0c8024f5b88454241c8d4777076c3786",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "ede0dd86f45adf2b7083bb161f6bc81da5fe2bad",
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"lessThan": "2c1030f2e84885cc58bffef6af67d5b9d2e7098f",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c"
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],
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"versions": [
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{
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"version": "4.17",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "4.17",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.253",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.203",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.167",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.130",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.78",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.19",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.19.9",
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"lessThanOrEqual": "6.19.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.0",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.17",
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"versionEndExcluding": "5.10.253"
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/ae87aea330c24f462fc7058ed543ba8bc6798447"
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},
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{
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"url": "https://git.kernel.org/stable/c/46d309996bd9251792d7dafdbaf615cf202b4447"
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{
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"url": "https://git.kernel.org/stable/c/e61e355cbe49e585097eee28c15b862bfb1c0668"
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},
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{
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"url": "https://git.kernel.org/stable/c/c658c1c85ec235b7ecfbf8dbfee385b1332088f4"
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},
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{
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"url": "https://git.kernel.org/stable/c/904025fa8bba1d028adade33346372b4ac1a9249"
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},
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{
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"url": "https://git.kernel.org/stable/c/7885eb335d8f9e9942925d57e300a85e3f82ded4"
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{
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"url": "https://git.kernel.org/stable/c/94b7782d0c8024f5b88454241c8d4777076c3786"
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{
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"url": "https://git.kernel.org/stable/c/2c1030f2e84885cc58bffef6af67d5b9d2e7098f"
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}
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],
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"title": "drm/amdgpu: Fix use-after-free race in VM acquire",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2026-43370",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "total"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-10-16T15:16:53.007366Z"
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}
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}
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"type": "CWE",
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"cweId": "CWE-362",
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"description": "CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')"
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}
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]
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-10-19T19:16:27.897Z"
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}
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}
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]
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}
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} |