An issue was discovered in the Linux kernel before 6.6.8. do_vcc_ioctl in net/atm/ioctl.c has a use-after-free because of a vcc_recvmsg race condition.
{
"cna_assigner": "mitre",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/51xxx/CVE-2023-51780.json",
"unresolved_ranges": [
{
"extracted_events": [
{
"range": [
{
"fixed": "6.6.8"
}
],
"source": "DESCRIPTION"
}
]
}
]
}"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-51780.json"
[
{
"deprecated": false,
"digest": {
"line_hashes": [
"188472710385848320503323922521347082493",
"282942297143654610807439938603255088079",
"329427016511005877338058471917710707954",
"135492338642916496106268540038109008179",
"280115866091002449664444586224195000049",
"52196621787310698862082098356060977807",
"104440687563785735459229328028012724651",
"205759941586293053259267205933554715293",
"290500170254758980016925172876720314474",
"10323649828550496556878404451448164445",
"185361832626901125035317353191633356631"
],
"threshold": 0.9
},
"id": "CVE-2023-51780-4c276971",
"signature_type": "Line",
"signature_version": "v1",
"source": "https://github.com/torvalds/linux/commit/24e90b9e34f9e039f56b5f25f6e6eb92cdd8f4b3",
"target": {
"file": "net/atm/ioctl.c"
}
},
{
"deprecated": false,
"digest": {
"function_hash": "307284769028567627935211254175124292890",
"length": 3000
},
"id": "CVE-2023-51780-773ed32a",
"signature_type": "Function",
"signature_version": "v1",
"source": "https://github.com/torvalds/linux/commit/24e90b9e34f9e039f56b5f25f6e6eb92cdd8f4b3",
"target": {
"file": "net/atm/ioctl.c",
"function": "do_vcc_ioctl"
}
}
]
"2026-10-21T08:46:06Z"