222 lines
11 KiB
JSON
222 lines
11 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-2022-49336",
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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": "2025-02-26T02:08:31.539Z",
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"datePublished": "2025-02-26T02:10:55.234Z",
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"dateUpdated": "2026-08-05T08:54:46.930Z"
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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": "2026-08-05T08:54:46.930Z"
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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/etnaviv: check for reaped mapping in etnaviv_iommu_unmap_gem\n\nWhen the mapping is already reaped the unmap must be a no-op, as we\nwould otherwise try to remove the mapping twice, corrupting the involved\ndata structures."
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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 - Reachable only via local DRM render-node ioctls (GEM_NEW/GEM_SUBMIT/handle close) on the etnaviv GPU driver; not exposed to network or adjacent attackers.\nAC:L - The race is between mapping reaping and GEM free; an unprivileged attacker controls both sides by concurrently submitting mappings that force IOVA reaping while closing buffers with idle mappings.\nPR:L - All relevant ioctls are DRM_RENDER_ALLOW on a DRIVER_RENDER device, so any unprivileged user with access to /dev/dri/renderD* (typical on etnaviv platforms) can trigger the path without root.\nUI:N - Exploitation requires only the attacker's own DRM ioctls and threads; no action by another user is needed.\nS:U - Impact is kernel memory corruption and privilege escalation within the same OS security authority; this is not a VM escape or system-IOMMU isolation bypass.\nC:H - Double list_del and double context kref_put yield list corruption and use-after-free of the IOMMU context, which can be leveraged for arbitrary kernel memory disclosure.\nI:H - The same UAF/list-corruption primitives enable heap manipulation and arbitrary kernel writes or control-flow hijacking, matching other DRM MMU UAF scores (e.g. CVE-2022-49359).\nA:H - Double-free/list corruption reliably causes kernel oops/panic even when not fully exploited for code execution."
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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/etnaviv/etnaviv_mmu.c"
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],
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"versions": [
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{
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"version": "a8c21a5451d831e67b7a6fb910f9ca8bc7b43554",
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"lessThan": "19323b3671a85788569d15685c8f83a05ec48cbb",
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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": "a8c21a5451d831e67b7a6fb910f9ca8bc7b43554",
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"lessThan": "436cff507f2a41230baacc3e2ef1d3b2d2653f40",
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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": "a8c21a5451d831e67b7a6fb910f9ca8bc7b43554",
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"lessThan": "03bd455a79f69d97fee3e3b212ab754442f10e5c",
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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": "a8c21a5451d831e67b7a6fb910f9ca8bc7b43554",
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"lessThan": "461c0fdf9434188875da9f10cfc86065866bb797",
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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": "a8c21a5451d831e67b7a6fb910f9ca8bc7b43554",
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"lessThan": "64f4edec081cb7c97c5e928529d0e1b0dbbffb83",
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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": "a8c21a5451d831e67b7a6fb910f9ca8bc7b43554",
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"lessThan": "e168c25526cd0368af098095c2ded4a008007e1b",
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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/etnaviv/etnaviv_mmu.c"
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],
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"versions": [
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{
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"version": "4.5",
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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": "4.5",
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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": "5.4.198",
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"lessThanOrEqual": "5.4.*",
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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": "5.10.121",
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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": "5.15.46",
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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": "5.17.14",
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"lessThanOrEqual": "5.17.*",
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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": "5.18.3",
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"lessThanOrEqual": "5.18.*",
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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": "5.19",
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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": "4.5",
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"versionEndExcluding": "5.4.198"
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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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"versionStartIncluding": "4.5",
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"versionEndExcluding": "5.10.121"
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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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"versionStartIncluding": "4.5",
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"versionEndExcluding": "5.15.46"
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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": "4.5",
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"versionEndExcluding": "5.17.14"
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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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"versionStartIncluding": "4.5",
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"versionEndExcluding": "5.18.3"
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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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"versionStartIncluding": "4.5",
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"versionEndExcluding": "5.19"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/19323b3671a85788569d15685c8f83a05ec48cbb"
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},
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{
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"url": "https://git.kernel.org/stable/c/436cff507f2a41230baacc3e2ef1d3b2d2653f40"
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},
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{
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"url": "https://git.kernel.org/stable/c/03bd455a79f69d97fee3e3b212ab754442f10e5c"
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},
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{
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"url": "https://git.kernel.org/stable/c/461c0fdf9434188875da9f10cfc86065866bb797"
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},
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{
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"url": "https://git.kernel.org/stable/c/64f4edec081cb7c97c5e928529d0e1b0dbbffb83"
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},
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{
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"url": "https://git.kernel.org/stable/c/e168c25526cd0368af098095c2ded4a008007e1b"
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}
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],
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"title": "drm/etnaviv: check for reaped mapping in etnaviv_iommu_unmap_gem",
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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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}
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} |