208 lines
10 KiB
JSON
208 lines
10 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-2026-90155",
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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": "2026-09-11T19:38:34.790Z",
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"datePublished": "2026-09-17T16:06:47.716Z",
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"dateUpdated": "2026-10-30T12:34:28.100Z"
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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": "2026-10-30T12:34:28.100Z"
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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\nksmbd: detach blocked lock requests before freeing\n\nA file_lock retained by ksmbd for byte-range lock bookkeeping can still\nbe part of the VFS blocked-request graph. In particular, the VFS can\nchain a new waiter below an already blocked request through\nflc_blocked_requests. The ksmbd_file reference count does not cover that\ngraph.\n\nBoth __ksmbd_close_fd() and the cross-request unlock path free these\nretained file_lock objects directly. If a dependent waiter is still\nattached, locks_release_private() hits\nBUG_ON(!list_empty(&flc->flc_blocked_requests)). The same lifetime\nmismatch can leave a freed ksmbd_lock reachable through its request-local\nllist.\n\nDetach the file_lock from the blocked-request graph before freeing it in\nthe close, cross-request unlock, and rollback paths. locks_delete_block()\nalso wakes requests chained below the object. Remove llist when a\ncompleted lock is published so a globally visible ksmbd_lock no longer\npoints into the submitting worker's stack."
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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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"fs/smb/server/smb2pdu.c",
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"fs/smb/server/vfs_cache.c"
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],
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"versions": [
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{
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"version": "d63528eb0d43c4796c42aad56889dec12cf4e122",
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"lessThan": "4e8b69c06bd6583ec11abef4fae50c2c8d5f3679",
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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": "d63528eb0d43c4796c42aad56889dec12cf4e122",
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"lessThan": "d20d3f6ad8b0b6f4e1bb32cdf7eca251962e8f04",
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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": "d63528eb0d43c4796c42aad56889dec12cf4e122",
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"lessThan": "d31db79cfaa9fce6649772ad279779473ba8aef9",
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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": "d63528eb0d43c4796c42aad56889dec12cf4e122",
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"lessThan": "f77d2accafca529e0ea3f979eb6e6cf1dac05c90",
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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": "d63528eb0d43c4796c42aad56889dec12cf4e122",
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"lessThan": "514a0b2bc949963497e66cacd433f65dc768a71d",
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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": "d63528eb0d43c4796c42aad56889dec12cf4e122",
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"lessThan": "215e8816b1ac25176d911abb8704390413ccee4b",
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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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"fs/smb/server/smb2pdu.c",
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"fs/smb/server/vfs_cache.c"
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],
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"versions": [
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{
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"version": "5.15",
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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": "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": "6.1.191",
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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": "6.6.160",
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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": "6.12.114",
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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": "6.18.57",
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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": "5.15",
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"versionEndExcluding": "6.1.191"
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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": "5.15",
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"versionEndExcluding": "6.6.160"
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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": "5.15",
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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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"versionStartIncluding": "5.15",
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"versionEndExcluding": "6.18.57"
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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": "5.15",
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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": "5.15",
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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/4e8b69c06bd6583ec11abef4fae50c2c8d5f3679"
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},
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{
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"url": "https://git.kernel.org/stable/c/d20d3f6ad8b0b6f4e1bb32cdf7eca251962e8f04"
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},
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{
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"url": "https://git.kernel.org/stable/c/d31db79cfaa9fce6649772ad279779473ba8aef9"
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},
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{
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"url": "https://git.kernel.org/stable/c/f77d2accafca529e0ea3f979eb6e6cf1dac05c90"
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},
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{
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"url": "https://git.kernel.org/stable/c/514a0b2bc949963497e66cacd433f65dc768a71d"
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},
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{
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"url": "https://git.kernel.org/stable/c/215e8816b1ac25176d911abb8704390413ccee4b"
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}
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],
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"title": "ksmbd: detach blocked lock requests before freeing",
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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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} |