282 lines
13 KiB
JSON
282 lines
13 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-2026-72138",
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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": "2026-08-09T03:40:39.908Z",
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"datePublished": "2026-08-15T05:53:12.549Z",
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"dateUpdated": "2026-11-06T16:55:20.776Z"
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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": "2026-08-17T05:08:56.108Z"
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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\nxen/gntdev: fix error handling in ioctl\n\nWhen gntdev_ioctl_map_grant_ref() fails to copy the operation result\nback to userspace after successfully adding the mapping to the list,\nthe error path returns -EFAULT without releasing the reference\nacquired by gntdev_alloc_map(). The mapping remains in priv->maps\nwith a refcount of 1, causing a memory leak and a dangling list\nentry.\n\nAdditionally, gntdev_add_map() may modify map->index to avoid overlap\nwith existing mappings. Therefore, the index returned to userspace\nmust be obtained after gntdev_add_map() completes.\n\nFix this by holding the mutex across gntdev_add_map(), retrieving\nthe correct index, and copy_to_user(). If copy_to_user() fails,\nremove the mapping from the list and release the reference while\nstill holding the lock.\n\n\nFix these issues by properly handling all error cases."
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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/xen/gntdev.c"
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],
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"versions": [
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{
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"version": "68b025c813c2eb41ff25628e3d4952d5185eb1a4",
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"lessThan": "52dc40ef0cfee6ae89b7524967e73f0ba37906d7",
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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": "68b025c813c2eb41ff25628e3d4952d5185eb1a4",
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"lessThan": "1dd9cb98fe228e017fff9efb33862ff38c741b65",
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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": "68b025c813c2eb41ff25628e3d4952d5185eb1a4",
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"lessThan": "6df926130aee6cab9b5d2e5b7862e49ccac348dc",
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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": "68b025c813c2eb41ff25628e3d4952d5185eb1a4",
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"lessThan": "311011f8cc206c5af2877b03e3f627ee1b8fe024",
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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": "68b025c813c2eb41ff25628e3d4952d5185eb1a4",
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"lessThan": "18a693733f7ad004e1ab0466693121ca70cd95dd",
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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": "68b025c813c2eb41ff25628e3d4952d5185eb1a4",
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"lessThan": "16d3ccdabb8dee9be2cdcd6d3f9a125572ec0454",
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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": "68b025c813c2eb41ff25628e3d4952d5185eb1a4",
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"lessThan": "6883269a323609f68f6faa903f8f8ff3d191cec8",
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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": "68b025c813c2eb41ff25628e3d4952d5185eb1a4",
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"lessThan": "45ca1afe2fd14c04e37227e79d3f8455831d8408",
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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/xen/gntdev.c"
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],
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"versions": [
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{
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"version": "2.6.39",
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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": "2.6.39",
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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": "5.10.261",
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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": "5.15.212",
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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": "6.1.178",
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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": "6.6.145",
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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": "6.12.97",
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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": "6.18.40",
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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": "7.1.5",
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"lessThanOrEqual": "7.1.*",
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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": "7.2",
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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": "2.6.39",
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"versionEndExcluding": "5.10.261"
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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": "2.6.39",
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"versionEndExcluding": "5.15.212"
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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": "2.6.39",
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"versionEndExcluding": "6.1.178"
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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": "2.6.39",
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"versionEndExcluding": "6.6.145"
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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": "2.6.39",
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"versionEndExcluding": "6.12.97"
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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": "2.6.39",
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"versionEndExcluding": "6.18.40"
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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": "2.6.39",
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"versionEndExcluding": "7.1.5"
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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": "2.6.39",
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"versionEndExcluding": "7.2"
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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/52dc40ef0cfee6ae89b7524967e73f0ba37906d7"
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},
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{
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"url": "https://git.kernel.org/stable/c/1dd9cb98fe228e017fff9efb33862ff38c741b65"
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},
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{
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"url": "https://git.kernel.org/stable/c/6df926130aee6cab9b5d2e5b7862e49ccac348dc"
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},
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{
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"url": "https://git.kernel.org/stable/c/311011f8cc206c5af2877b03e3f627ee1b8fe024"
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},
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{
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"url": "https://git.kernel.org/stable/c/18a693733f7ad004e1ab0466693121ca70cd95dd"
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},
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{
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"url": "https://git.kernel.org/stable/c/16d3ccdabb8dee9be2cdcd6d3f9a125572ec0454"
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},
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{
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"url": "https://git.kernel.org/stable/c/6883269a323609f68f6faa903f8f8ff3d191cec8"
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},
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{
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"url": "https://git.kernel.org/stable/c/45ca1afe2fd14c04e37227e79d3f8455831d8408"
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}
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],
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"title": "xen/gntdev: fix error handling in ioctl",
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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-2026-72138",
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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": "partial"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-11-06T16:51:54.267529Z"
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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": "2026-11-06T16:55:20.776Z"
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}
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}
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]
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}
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} |