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-2026-97564",
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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": "2026-09-24T16:01:01.155Z",
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"datePublished": "2026-09-25T10:21:51.858Z",
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"dateUpdated": "2026-10-30T12:37:26.400Z"
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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": "2026-10-30T12:37:26.400Z"
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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\nsmb: client: reject userspace cifs.idmap descriptions\n\ncifs.idmap key descriptions carry authority-bearing fields (owner and\ngroup SIDs and uid/gid values in \"os:\"/\"gs:\"/\"oi:\"/\"gi:\" form) that the\ncifs.idmap upcall helper treats as kernel-originating inputs. Unlike\nits sibling cifs.spnego, the cifs.idmap key type has no vet_description\nhook, so userspace can create keys of this type through\nrequest_key(2)/add_key(2) and supply those fields without CIFS origin.\nA request_key(2) call with a non-NULL callout then drives a root\nusermodehelper upcall (/sbin/request-key -> cifs.idmap) that consumes\nthe unvetted description in root context.\n\nOnly accept cifs.idmap descriptions while CIFS is using its private\nroot_cred to request the key. id_to_sid()/sid_to_id() already run\nunder override_creds(root_cred), so the kernel-originated path is\nunaffected.\n\nThis mirrors commit 3da1fdf4efbc (\"smb: client: reject userspace\ncifs.spnego descriptions\"), which applied the same restriction to\ncifs.spnego."
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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/client/cifsacl.c"
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],
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"versions": [
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{
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"version": "4d79dba0e00749fa40de8ef13a9b85ce57a1603b",
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"lessThan": "91da70a2e5c6f54e1316d51e0e6911e78ef5e09a",
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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": "4d79dba0e00749fa40de8ef13a9b85ce57a1603b",
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"lessThan": "856cb3f05b49d23dc1542f78696e20c4ea6dd7de",
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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": "4d79dba0e00749fa40de8ef13a9b85ce57a1603b",
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"lessThan": "f29c1ec0e7d8c887a91df3f93bb4617c0ac95c6a",
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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": "4d79dba0e00749fa40de8ef13a9b85ce57a1603b",
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"lessThan": "17c93bcd17755523c21abb22cbf2a41a6eb0caaf",
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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": "4d79dba0e00749fa40de8ef13a9b85ce57a1603b",
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"lessThan": "e5964064e3fbe6325893408faff08ca33de0e2c3",
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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": "4d79dba0e00749fa40de8ef13a9b85ce57a1603b",
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"lessThan": "96751028c0d4dec785709ea3eb0ab38a4f2ded96",
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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": "4d79dba0e00749fa40de8ef13a9b85ce57a1603b",
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"lessThan": "1d3b24b16a0b013792e8f1e3ed060f0b46f537d1",
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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": "4d79dba0e00749fa40de8ef13a9b85ce57a1603b",
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"lessThan": "d9d7eeb0cea5b55b82888f443622fd8d4ee064f3",
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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/client/cifsacl.c"
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],
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"versions": [
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{
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"version": "3.0",
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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": "3.0",
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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": "5.10.273",
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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": "5.15.224",
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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": "6.1.189",
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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": "6.6.158",
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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": "6.12.111",
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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": "6.18.53",
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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": "7.2.7",
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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": "3.0",
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"versionEndExcluding": "5.10.273"
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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": "3.0",
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"versionEndExcluding": "5.15.224"
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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": "3.0",
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"versionEndExcluding": "6.1.189"
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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": "3.0",
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"versionEndExcluding": "6.6.158"
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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": "3.0",
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"versionEndExcluding": "6.12.111"
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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": "3.0",
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"versionEndExcluding": "6.18.53"
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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": "3.0",
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"versionEndExcluding": "7.2.7"
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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": "3.0",
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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/91da70a2e5c6f54e1316d51e0e6911e78ef5e09a"
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},
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{
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"url": "https://git.kernel.org/stable/c/856cb3f05b49d23dc1542f78696e20c4ea6dd7de"
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},
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{
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"url": "https://git.kernel.org/stable/c/f29c1ec0e7d8c887a91df3f93bb4617c0ac95c6a"
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},
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{
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"url": "https://git.kernel.org/stable/c/17c93bcd17755523c21abb22cbf2a41a6eb0caaf"
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},
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{
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"url": "https://git.kernel.org/stable/c/e5964064e3fbe6325893408faff08ca33de0e2c3"
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},
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{
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"url": "https://git.kernel.org/stable/c/96751028c0d4dec785709ea3eb0ab38a4f2ded96"
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},
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{
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"url": "https://git.kernel.org/stable/c/1d3b24b16a0b013792e8f1e3ed060f0b46f537d1"
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},
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{
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"url": "https://git.kernel.org/stable/c/d9d7eeb0cea5b55b82888f443622fd8d4ee064f3"
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}
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],
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"title": "smb: client: reject userspace cifs.idmap descriptions",
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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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} |