164 lines
8.0 KiB
JSON
164 lines
8.0 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-2026-90424",
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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": "2026-09-11T19:38:34.814Z",
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"datePublished": "2026-09-17T16:09:47.165Z",
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"dateUpdated": "2026-10-21T12:51:36.906Z"
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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": "2026-10-21T12:51:36.906Z"
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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\niommu/tegra241-cmdqv: Fix VINTF0 leak on the init-failure path\n\ntegra241_cmdqv_init_structures() allocates VINTF0 with kzalloc_obj(), inits\nit, and preallocates its logical VCMDQs. Two of its error paths leak.\n\nWhen tegra241_cmdqv_init_vintf() fails it returns before VINTF0 reaches the\ncmdqv->vintfs[] array, so the devres unwind on probe failure cannot reach\nit; free it directly there.\n\nA later VCMDQ preallocation failure instead leaves VINTF0 published, and so\nthis time the unwind does reach tegra241_cmdqv_remove_vintf(), which then\nfrees it from vintf->hyp_own. But tegra241_vintf_hw_init() sets that flag\nonly afterward, from a HW read-back, so the still-uninited VINTF0 reads as\nguest-owned and leaks, with mutex_destroy() and ida_destroy() run on fields\nit never set up.\n\nDecide ownership from vintf->idx instead, the index assigned when its id is\nallocated: idx 0 is the kernel-owned VINTF0, while idx >= 1 marks a guest\nVINTF. So the in-kernel free decision in tegra241_cmdqv_remove_vintf() and\ntegra241_vintf_free_lvcmdq() now keys on idx too, and hyp_own stays a pure\nHW-readback state."
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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/iommu/arm/arm-smmu-v3/tegra241-cmdqv.c"
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],
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"versions": [
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{
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"version": "918eb5c856f6ce4cf93b4b38e4b5e156905c5943",
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"lessThan": "05a1405d0cba3d8253261b02eb65e5cd3ca09ab3",
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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": "918eb5c856f6ce4cf93b4b38e4b5e156905c5943",
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"lessThan": "1d2271d7df5230e4ce36bdafd17524bd004f3b3f",
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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": "918eb5c856f6ce4cf93b4b38e4b5e156905c5943",
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"lessThan": "417190bde0fda4ee857999a722ca90163fbec587",
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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": "918eb5c856f6ce4cf93b4b38e4b5e156905c5943",
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"lessThan": "f40f3144477314b489e4bc209c06cb51679fe82b",
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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/iommu/arm/arm-smmu-v3/tegra241-cmdqv.c"
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],
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"versions": [
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{
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"version": "6.12",
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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": "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": "6.12.114",
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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": "6.18.52",
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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": "7.2.6",
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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": "6.12",
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"versionEndExcluding": "6.12.114"
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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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"versionEndExcluding": "6.18.52"
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.12",
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"versionEndExcluding": "7.2.6"
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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": "6.12",
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"versionEndExcluding": "7.3"
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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/05a1405d0cba3d8253261b02eb65e5cd3ca09ab3"
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},
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{
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"url": "https://git.kernel.org/stable/c/1d2271d7df5230e4ce36bdafd17524bd004f3b3f"
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},
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{
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"url": "https://git.kernel.org/stable/c/417190bde0fda4ee857999a722ca90163fbec587"
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},
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{
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"url": "https://git.kernel.org/stable/c/f40f3144477314b489e4bc209c06cb51679fe82b"
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}
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],
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"title": "iommu/tegra241-cmdqv: Fix VINTF0 leak on the init-failure path",
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"x_generator": {
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