AZL-99072
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-99072.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-99072
- Upstream
- Published
- 2026-09-03T13:06:12Z
- Modified
- 2026-09-05T05:27:51Z
- Summary
- CVE-2026-80738 affecting package kernel 6.6.150.1-1
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
bpf: Check skstate before skprotocol in bpftcp*_syncookie
bpftcpgensyncookie and bpftcpchecksyncookie accept a socket pointer 'sk' with argument type ARGPTRTOBTFIDSOCKCOMMON. However, they access sk->sk_protocol without validating whether 'sk' represents a full socket.
Fix this issue by checking sk->skstate != TCPLISTEN before inspecting sk->skprotocol in both bpftcpgensyncookie and bpftcpchecksyncookie. Since mini-sockets are never in the TCPLISTEN state, the condition short-circuits and prevents dereferencing fullsock-specific fields.
- References