CVE-2026-90152
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: smb/server: fix session leak in ksmbd_session_register() See the procedure below: smb2_sess_setup ksmbd_smb2_session_create __session_create atomic_set(&sess->refcnt, 2) hash_add(sessions_table, &sess->hlist, sess->id) ksmbd_session_register xa_store(&conn->sessions, sess->id, sess) // fail ksmbd_user_session_put atomic_dec(&sess->refcnt) // refcnt is 1, session is not freed Remove the session from sessions_table and drop its table reference if xa_store() fails.
Severity
Not scored
CVSS score
Not available
Vulnerability status
Received
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2026-09-17 17:17:08.207000
Last modified
2026-10-30 13:20:43.723000
View original CVE JSON
{
"id": "CVE-2026-90152",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2026-09-17T17:17:08.207",
"lastModified": "2026-10-30T13:20:43.723",
"vulnStatus": "Received",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb/server: fix session leak in ksmbd_session_register()\n\nSee the procedure below:\n\n smb2_sess_setup\n ksmbd_smb2_session_create\n __session_create\n atomic_set(&sess->refcnt, 2)\n hash_add(sessions_table, &sess->hlist, sess->id)\n ksmbd_session_register\n xa_store(&conn->sessions, sess->id, sess) // fail\n ksmbd_user_session_put\n atomic_dec(&sess->refcnt) // refcnt is 1, session is not freed\n\nRemove the session from sessions_table and drop its table reference if\nxa_store() fails."
}
],
"affected": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"affectedData": [
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "unaffected",
"programFiles": [
"fs/smb/server/mgmt/user_session.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "f623f627ad2b1dc215ab3b0df53fb05cfd3a1c3b",
"lessThan": "869807cdd5599c289c21d40f36a504d72a0d23c6",
"versionType": "git",
"status": "affected"
},
{
"version": "f5c779b7ddbda30866cf2a27c63e34158f858c73",
"lessThan": "988f99bfddda4e2d1da5f6e98b237dd85e123cee",
"versionType": "git",
"status": "affected"
},
{
"version": "f5c779b7ddbda30866cf2a27c63e34158f858c73",
"lessThan": "03a22a003f41b182245e6c71fe565e277cff7094",
"versionType": "git",
"status": "affected"
},
{
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{
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"versionType": "git",
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},
{
"version": "708c304b583d789957399dd8237f212cf8ad1e4d",
"versionType": "git",
"status": "affected"
},
{
"version": "d270631c21e68fb8016d6e231d022d7023a2df6f",
"versionType": "git",
"status": "affected"
},
{
"version": "02f41d88f15d6b7d523e52cc3f87488f57e9265b",
"versionType": "git",
"status": "affected"
},
{
"version": "6.1.29",
"lessThan": "6.1.191",
"versionType": "semver",
"status": "affected"
},
{
"version": "5.15.145",
"lessThan": "5.16",
"versionType": "semver",
"status": "affected"
},
{
"version": "6.2.16",
"lessThan": "6.3",
"versionType": "semver",
"status": "affected"
},
{
"version": "6.3.2",
"lessThan": "6.4",
"versionType": "semver",
"status": "affected"
}
]
},
{
"vendor": "Linux",
"product": "Linux",
"defaultStatus": "affected",
"programFiles": [
"fs/smb/server/mgmt/user_session.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"versions": [
{
"version": "6.4",
"status": "affected"
},
{
"version": "0",
"lessThan": "6.4",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.1.191",
"lessThanOrEqual": "6.1.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.6.160",
"lessThanOrEqual": "6.6.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.12.110",
"lessThanOrEqual": "6.12.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "6.18.52",
"lessThanOrEqual": "6.18.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "7.2.6",
"lessThanOrEqual": "7.2.*",
"versionType": "semver",
"status": "unaffected"
},
{
"version": "7.3",
"lessThanOrEqual": "*",
"versionType": "original_commit_for_fix",
"status": "unaffected"
}
]
}
]
}
],
"metrics": {},
"references": [
{
"url": "https://git.kernel.org/stable/c/03a22a003f41b182245e6c71fe565e277cff7094",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
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"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/869807cdd5599c289c21d40f36a504d72a0d23c6",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/988f99bfddda4e2d1da5f6e98b237dd85e123cee",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/99b25b046e47e4904373cfeb445c5483f1633d88",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
},
{
"url": "https://git.kernel.org/stable/c/b967a595fb735d313a8676b2ca6a4cba38506482",
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
]
}