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-2026-93261",
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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": "2026-09-17T16:02:15.097Z",
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"datePublished": "2026-09-24T15:51:59.638Z",
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"dateUpdated": "2026-10-19T09:08:14.521Z"
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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": "2026-10-19T09:08:14.521Z"
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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\nlocking/lockdep: Fix NULL pointer dereference in __lock_set_class()\n\nregister_lock_class() can return NULL when the lock class pool is\nexhausted, graph_lock() fails, or key validation fails. However,\n__lock_set_class() uses the return value directly in pointer arithmetic\nwithout a NULL check:\n\n class = register_lock_class(lock, subclass, 0);\n hlock->class_idx = class - lock_classes;\n\nIf class is NULL, this computes a wild offset that corrupts\nhlock->class_idx. The subsequent reacquire_held_locks() call will\ninvoke hlock_class() with this corrupted index, leading to a NULL or\nout-of-bounds pointer dereference.\n\nAdd the missing NULL check, consistent with how __lock_acquire() already\nhandles this case at the same call site."
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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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"kernel/locking/lockdep.c"
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],
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"versions": [
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{
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"version": "64aa348edc617dea17bbd01ddee4e47886d5ec8c",
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"lessThan": "f6093ff67ea6e347574819ed23e96e0f82a25ffc",
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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": "64aa348edc617dea17bbd01ddee4e47886d5ec8c",
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"lessThan": "59a5c7dd331a3dab48100e1ef8e9bb4f9132a2b2",
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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": "64aa348edc617dea17bbd01ddee4e47886d5ec8c",
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"lessThan": "f56e54fd24f05e9de528fcb77f6084f80c8066ce",
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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": "64aa348edc617dea17bbd01ddee4e47886d5ec8c",
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"lessThan": "5c3bff6cf26e6a54fbf8b893a879c32824d2d50d",
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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": "64aa348edc617dea17bbd01ddee4e47886d5ec8c",
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"lessThan": "b2113dcd8238bf00ce37a34e67b29cf31d32a545",
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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": "64aa348edc617dea17bbd01ddee4e47886d5ec8c",
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"lessThan": "e7c69c6695d84220847cca62a45e879e71e79e9d",
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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": "64aa348edc617dea17bbd01ddee4e47886d5ec8c",
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"lessThan": "9be10f49dfc2e4b472b3a5f346483b67374774b8",
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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": "64aa348edc617dea17bbd01ddee4e47886d5ec8c",
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"lessThan": "7577e00b9ab506202b9f1a33de3cc8cc6413a4db",
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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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"kernel/locking/lockdep.c"
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],
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"versions": [
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{
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"version": "2.6.27",
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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": "2.6.27",
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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": "5.10.270",
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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": "5.15.221",
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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": "6.1.188",
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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": "6.12.110",
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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": "2.6.27",
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"versionEndExcluding": "5.10.270"
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "5.15.221"
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "6.6.157"
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{
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"versionStartIncluding": "2.6.27",
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"versionEndExcluding": "7.2.6"
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/f6093ff67ea6e347574819ed23e96e0f82a25ffc"
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},
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{
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"url": "https://git.kernel.org/stable/c/59a5c7dd331a3dab48100e1ef8e9bb4f9132a2b2"
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},
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{
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"url": "https://git.kernel.org/stable/c/f56e54fd24f05e9de528fcb77f6084f80c8066ce"
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},
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{
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"url": "https://git.kernel.org/stable/c/5c3bff6cf26e6a54fbf8b893a879c32824d2d50d"
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},
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{
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"url": "https://git.kernel.org/stable/c/b2113dcd8238bf00ce37a34e67b29cf31d32a545"
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},
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{
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"url": "https://git.kernel.org/stable/c/e7c69c6695d84220847cca62a45e879e71e79e9d"
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},
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{
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"url": "https://git.kernel.org/stable/c/9be10f49dfc2e4b472b3a5f346483b67374774b8"
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},
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{
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"url": "https://git.kernel.org/stable/c/7577e00b9ab506202b9f1a33de3cc8cc6413a4db"
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}
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],
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"title": "locking/lockdep: Fix NULL pointer dereference in __lock_set_class()",
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"x_generator": {
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