In the Linux kernel, the following vulnerability has been resolved:
NFSD: fix leaked reference count of nfsd4sscumount_item
The reference count of nfsd4sscumount_item is not decremented on error conditions. This prevents the laundromat from unmounting the vfsmount of the source file.
This patch decrements the reference count of nfsd4sscumount_item on error.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53381.json",
"cna_assigner": "Linux"
}"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53381.json"
[
{
"deprecated": false,
"signature_version": "v1",
"digest": {
"threshold": 0.9,
"line_hashes": [
"252999606093963738614088103027211603579",
"117882210185164375130919590443808782428",
"253562668314095484783924680564933780055",
"45515209327312504926290539504349915549",
"102105252842534490371055868287002322502",
"114335544761739508874114885120411889555",
"254743575319415055375363681090923054163"
]
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@6c3c05402547aaca3edb23327b50f01a881831b9",
"signature_type": "Line",
"id": "CVE-2023-53381-bf6114a2",
"target": {
"file": "fs/nfsd/nfs4proc.c"
}
},
{
"deprecated": false,
"signature_version": "v1",
"digest": {
"function_hash": "183260074039158538925257769108791552440",
"length": 1640.0
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@6c3c05402547aaca3edb23327b50f01a881831b9",
"signature_type": "Function",
"id": "CVE-2023-53381-ca1d6cd4",
"target": {
"file": "fs/nfsd/nfs4proc.c",
"function": "nfsd4_copy"
}
}
]