248 lines
12 KiB
JSON
248 lines
12 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-2026-68357",
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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": "2026-07-30T09:28:09.385Z",
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"datePublished": "2026-08-10T12:03:34.241Z",
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"dateUpdated": "2026-08-19T16:34:05.347Z"
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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": "2026-08-19T16:34:05.347Z"
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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\nwatchdog: pretimeout: Fix UAF in watchdog_unregister_governor()\n\nWhen a watchdog governor is unregistered, it updates existing watchdog\ndevices that were using this governor by falling back to `default_gov`.\n\nIf the governor being unregistered is currently set as `default_gov`,\nthe `default_gov` is never cleared. This leads to 2 use-after-free\nissues:\n1. New watchdog devices registered after this point will inherit the\n dangling `default_gov`.\n2. Existing watchdog devices using the unregistered governor will have\n their `wdd->gov` reassigned to the dangling `default_gov`.\n\nFix the UAF by clearing `default_gov` if it matches the governor being\nunregistered."
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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/watchdog/watchdog_pretimeout.c"
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],
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"versions": [
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{
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"version": "da0d12ff2b829a35e9921918e925d79497b82bef",
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"lessThan": "b9ae33faa96bdec6bc60e4c5f8f53786182e4207",
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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": "da0d12ff2b829a35e9921918e925d79497b82bef",
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"lessThan": "472ec1e34ff0bb26379805cae808f658cce58c35",
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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": "da0d12ff2b829a35e9921918e925d79497b82bef",
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"lessThan": "7a2ee3ec6f208307eca1119a343c7b5d39c03708",
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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": "da0d12ff2b829a35e9921918e925d79497b82bef",
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"lessThan": "2e47b91b9b4020fcc01def14d6b6556d66074cf4",
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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": "da0d12ff2b829a35e9921918e925d79497b82bef",
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"lessThan": "0ca252720f0e38411cfec3431db9bb1aed0a412c",
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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": "da0d12ff2b829a35e9921918e925d79497b82bef",
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"lessThan": "7d1658b066de30f4b23afc14814d22416a971e6e",
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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": "da0d12ff2b829a35e9921918e925d79497b82bef",
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"lessThan": "7993d626983cc58fbde9607333cfd2d57725c197",
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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": "da0d12ff2b829a35e9921918e925d79497b82bef",
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"lessThan": "7362ba0f9c96ac3ad6a2ca3995bd9fc9a28a8661",
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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/watchdog/watchdog_pretimeout.c"
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],
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"versions": [
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{
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"version": "4.9",
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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": "4.9",
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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": "5.10.265",
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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": "5.15.216",
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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": "6.1.183",
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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": "6.6.148",
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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": "6.12.101",
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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": "6.18.42",
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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": "7.1.6",
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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": "4.9",
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"versionEndExcluding": "5.10.265"
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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": "4.9",
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"versionEndExcluding": "5.15.216"
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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": "4.9",
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"versionEndExcluding": "6.1.183"
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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": "4.9",
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"versionEndExcluding": "6.6.148"
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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": "4.9",
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"versionEndExcluding": "6.12.101"
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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": "4.9",
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"versionEndExcluding": "6.18.42"
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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": "4.9",
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"versionEndExcluding": "7.1.6"
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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": "4.9",
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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/b9ae33faa96bdec6bc60e4c5f8f53786182e4207"
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},
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{
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"url": "https://git.kernel.org/stable/c/472ec1e34ff0bb26379805cae808f658cce58c35"
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},
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{
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"url": "https://git.kernel.org/stable/c/7a2ee3ec6f208307eca1119a343c7b5d39c03708"
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},
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{
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"url": "https://git.kernel.org/stable/c/2e47b91b9b4020fcc01def14d6b6556d66074cf4"
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},
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{
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"url": "https://git.kernel.org/stable/c/0ca252720f0e38411cfec3431db9bb1aed0a412c"
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},
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{
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"url": "https://git.kernel.org/stable/c/7d1658b066de30f4b23afc14814d22416a971e6e"
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},
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{
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"url": "https://git.kernel.org/stable/c/7993d626983cc58fbde9607333cfd2d57725c197"
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},
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{
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"url": "https://git.kernel.org/stable/c/7362ba0f9c96ac3ad6a2ca3995bd9fc9a28a8661"
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}
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],
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"title": "watchdog: pretimeout: Fix UAF in watchdog_unregister_governor()",
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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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} |