298 lines
15 KiB
JSON
298 lines
15 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-2026-89553",
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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": "2026-09-11T19:38:34.723Z",
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"datePublished": "2026-09-11T19:44:26.836Z",
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"dateUpdated": "2026-10-30T12:32:12.068Z"
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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": "2026-10-30T12:32:12.068Z"
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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\nnouveau/gem: reserve the bo in the info ioctl around the vma lookup\n\nIn the non-uvmm path, there could be a race between the info lookup\nfinding the vma, and the gem close path closing the vma leading\nto a use-after-free.\n\nSpotted with the help of Opus 4.6."
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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 - Reached only via local DRM ioctls on a nouveau render node (/dev/dri/renderD*): DRM_IOCTL_NOUVEAU_GEM_INFO (nouveau_gem_ioctl_info→nouveau_gem_info) racing DRM_IOCTL_GEM_CLOSE (nouveau_gem_object_close). Not reachable from network protocols, adjacent radios, or physical buses.\nAC:L - The attacker controls both sides of the race with threads that GEM_INFO and GEM_CLOSE the same handle, so close kfree()s the nouveau_vma while info still uses it. Skipping UVMM (legacy GEM_NEW) selects the vulnerable path; no victim timing or rare config is required.\nPR:L - NOUVEAU_GEM_INFO and GEM_CLOSE are DRM_RENDER_ALLOW with no DRM_ROOT_ONLY or capability checks. Any unprivileged local user who can open the nouveau render node (typical render/video group or uaccess ACL) can trigger it without init-namespace root.\nUI:N - Exploitation needs only the attacker opening their own DRM client, creating a GEM BO, and racing GEM_INFO against GEM_CLOSE on that handle; no separate victim action is required.\nS:U - The use-after-free corrupts kernel heap state (struct nouveau_vma) inside the host nouveau driver. Impact stays in the same kernel authority; this is not a VM escape or IOMMU/DMA isolation bypass.\nC:H - Use-after-free of struct nouveau_vma lets GEM_INFO read vma->addr after kfree, and concurrent walks of nvbo->vma_list can follow attacker-reused slab objects, enabling kernel memory disclosure as with other UAFs.\nI:H - UAF of the VMA plus concurrent list_del/list_del_init on nvbo->vma_list enables heap spraying and list-pointer corruption, supporting arbitrary kernel writes and control-flow hijack as with other kernel UAFs.\nA:H - Dereferencing a freed nouveau_vma in GEM_INFO or walking a concurrently deleted vma_list causes a kernel oops/panic; the attacker can repeat the race to crash or hang the system."
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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/nouveau/nouveau_gem.c"
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],
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"versions": [
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{
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"version": "e758a3111914af7ee4351be86f1ac0efe87ed06e",
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"lessThan": "3e9c9090d4cc5a61ab5067ac5502c4fd37891b97",
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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": "e758a3111914af7ee4351be86f1ac0efe87ed06e",
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"lessThan": "24340ab41c33e16b3d64d89cb738ecd83c78de49",
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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": "e758a3111914af7ee4351be86f1ac0efe87ed06e",
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"lessThan": "f57e0d3bee3f7a459c048e10fd1cbcfd1dac2e0f",
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"status": "affected",
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},
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{
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"version": "e758a3111914af7ee4351be86f1ac0efe87ed06e",
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"lessThan": "e05c28bd6043d0fd0bea9c3fc49300a8871a1a81",
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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": "e758a3111914af7ee4351be86f1ac0efe87ed06e",
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"lessThan": "208867763843aa82efcbe3b771f1b8e6c7aa820a",
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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": "e758a3111914af7ee4351be86f1ac0efe87ed06e",
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"lessThan": "ff110e85837d7ecd83f36078107be240ff5ae409",
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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": "e758a3111914af7ee4351be86f1ac0efe87ed06e",
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"lessThan": "e60466011ac3a6b8045e6cc3c2cbb30d58039d2e",
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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": "e758a3111914af7ee4351be86f1ac0efe87ed06e",
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"lessThan": "5e17160d41d92823f3379c1982e1369680c5ce4d",
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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/nouveau/nouveau_gem.c"
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],
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"versions": [
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{
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"version": "3.1",
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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": "3.1",
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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": "5.10.273",
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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": "5.15.224",
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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": "6.1.191",
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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": "6.6.157",
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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": "6.12.109",
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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": "6.18.50",
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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": "7.2.4",
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"lessThanOrEqual": "7.2.*",
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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": "7.3",
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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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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.1",
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"versionEndExcluding": "5.10.273"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/3e9c9090d4cc5a61ab5067ac5502c4fd37891b97"
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},
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{
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"url": "https://git.kernel.org/stable/c/24340ab41c33e16b3d64d89cb738ecd83c78de49"
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},
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{
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"url": "https://git.kernel.org/stable/c/f57e0d3bee3f7a459c048e10fd1cbcfd1dac2e0f"
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},
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{
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"url": "https://git.kernel.org/stable/c/e05c28bd6043d0fd0bea9c3fc49300a8871a1a81"
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},
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{
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"url": "https://git.kernel.org/stable/c/208867763843aa82efcbe3b771f1b8e6c7aa820a"
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},
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{
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"url": "https://git.kernel.org/stable/c/ff110e85837d7ecd83f36078107be240ff5ae409"
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},
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{
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"url": "https://git.kernel.org/stable/c/e60466011ac3a6b8045e6cc3c2cbb30d58039d2e"
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},
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{
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"url": "https://git.kernel.org/stable/c/5e17160d41d92823f3379c1982e1369680c5ce4d"
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}
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],
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"title": "nouveau/gem: reserve the bo in the info ioctl around the vma lookup",
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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-2026-89553",
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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": "2026-10-16T19:23:54.129922Z"
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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": "2026-10-16T19:26:43.449Z"
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}
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}
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]
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}
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} |