UnratedFix available
kcm: fix strp_init() order and cleanup
Type: advisorySources: OSV
In the Linux kernel, the following vulnerability has been resolved: kcm: fix strp_init() order and cleanup strp_init() is called just a few lines above this csk->sk_user_data check, it also initializes strp->work etc., therefore, it is unnecessary to call strp_done() to cancel the freshly initialized work. And if sk_user_data is already used by KCM, psock->strp should not be touched, particularly strp->work state, so we need to move strp_init() after the csk->sk_user_data check. This also makes a lockdep warning reported by syzbot go away.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 4.14.293, 4.19.258, 5.10.142, 5.15.66, 5.19.8, 5.4.213
- CVEs
- CVE-2022-49957
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 5 Nov 2026, 00:56 UTC · Revision 1
Source evidence
In the Linux kernel, the following vulnerability has been resolved: kcm: fix strp_init() order and cleanup strp_init() is called just a few lines above this csk->sk_user_data check, it also initializes strp->work etc., therefore, it is unnecessary to call strp_done() to cancel the freshly initialized work. And if sk_user_data is already used by KCM, psock->strp should not be touched, particularly strp->work state, so we need to move strp_init() after the csk->sk_user_data check. This also makes a lockdep warning reported by syzbot go away.
osv:CVE-2022-49957
Kernel
Fixed versions: 4.14.293, 4.19.258, 5.4.213, 5.10.142, 5.15.66, 5.19.8
Complete source record
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"title": "kcm: fix strp_init() order and cleanup",
"summary": "In the Linux kernel, the following vulnerability has been resolved: kcm: fix strp_init() order and cleanup strp_init() is called just a few lines above this csk->sk_user_data check, it also initializes strp->work etc., therefore, it is unnecessary to call strp_done() to cancel the freshly initialized work. And if sk_user_data is already used by KCM, psock->strp should not be touched, particularly strp->work state, so we need to move strp_init() after the csk->sk_user_data check. This also makes a lockdep warning reported by syzbot go away.",
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"fixed": "5.19.8"
}
]
}
],
"package": {
"name": "Kernel",
"ecosystem": "Linux"
},
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49957.json"
}
}
],
"modified": "2026-10-28T02:30:41.588482691Z",
"provider": "osv",
"references": [
"https://git.kernel.org/stable/c/0946ff31d1a8778787bf6708beb20f38715267cc",
"https://git.kernel.org/stable/c/1b6666964ca1de93a7bf06e122bcf3616dbd33a9",
"https://git.kernel.org/stable/c/473f394953216614087f4179e55cdf0cf616a13b",
"https://git.kernel.org/stable/c/55fb8c3baa8071c5d533a9ad48624e44e2a04ef5",
"https://git.kernel.org/stable/c/8fc29ff3910f3af08a7c40a75d436b5720efe2bf",
"https://git.kernel.org/stable/c/a8a0c321319ad64a5427d6172cd9c23b4d6ca1e8",
"https://git.kernel.org/stable/c/f865976baa85915c7672f351b74d5974b93215f6",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49957.json",
"https://nvd.nist.gov/vuln/detail/CVE-2022-49957",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
],
"provider_metadata": {
"cna_assigner": "Linux",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49957.json"
}
},
"related_cves": [
{
"value": "CVE-2022-49957",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": null
},
"source_id": "core-osv",
"document_id": 508801,
"published_at": "2025-06-18T11:00:19.238+00:00"
}