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vuln-cve/data/2026/31xxx/CVE-2026-31710.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-31710",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2026-03-09T15:48:24.133Z",
"datePublished": "2026-05-01T13:56:07.217Z",
"dateUpdated": "2026-09-21T13:13:35.436Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-09-21T13:13:35.436Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb: client: fix dir separator in SMB1 UNIX mounts\n\nWhen calling cifs_mount_get_tcon() with SMB1 UNIX mounts,\n@cifs_sb->mnt_cifs_flags needs to be read or updated only after\ncalling reset_cifs_unix_caps(), otherwise it might end up with missing\nCIFS_MOUNT_POSIXACL and CIFS_MOUNT_POSIX_PATHS bits.\n\nThis fixes the wrong dir separator used in paths caused by the missing\nCIFS_MOUNT_POSIX_PATHS bit in cifs_sb_info::mnt_cifs_flags."
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"fs/smb/client/connect.c",
"fs/smb/client/smb1ops.c"
],
"versions": [
{
"version": "4fc3a433c13944ee5766ec5b9bf6f1eb4d29b880",
"lessThan": "fbbfcf35e1ee3396631f3dc6214cb626aa9814c3",
"status": "affected",
"versionType": "git"
},
{
"version": "4fc3a433c13944ee5766ec5b9bf6f1eb4d29b880",
"lessThan": "c4d3fc5844d685441befd0caaab648321013cdfd",
"status": "affected",
"versionType": "git"
},
{
"version": "9d9f6e06123001208cd8ae6332c7e814ab709169",
"status": "affected",
"versionType": "git"
},
{
"version": "6.18.53",
"lessThan": "6.19",
"status": "affected",
"versionType": "semver"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"fs/smb/client/connect.c",
"fs/smb/client/smb1ops.c"
],
"versions": [
{
"version": "7.0",
"status": "affected"
},
{
"version": "0",
"lessThan": "7.0",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "7.0.2",
"lessThanOrEqual": "7.0.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "7.1",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"operator": "OR",
"negate": false,
"cpeMatch": [
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "7.0",
"versionEndExcluding": "7.0.2"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "7.0",
"versionEndExcluding": "7.1"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.18.53"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/fbbfcf35e1ee3396631f3dc6214cb626aa9814c3"
},
{
"url": "https://git.kernel.org/stable/c/c4d3fc5844d685441befd0caaab648321013cdfd"
}
],
"title": "smb: client: fix dir separator in SMB1 UNIX mounts",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
}
}