kernel: bpf, sockmap: Fix repeated calls to sock_put() when msg has more_data

A reference-count flaw was found in the Linux kernel Berkeley Packet Filter BPF sockmap implementation. When processing messages with remaining data, the same Transmission Control Protocol TCP socket reference could be released more than once. A local user running BPF sockmap programs could use...

PT-2023-34530

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.10.163 Description The issue concerns repeated calls to sock put when a message has more data, potentially leading to security vulnerabilities. The actual impact and attack plausibility have not yet been prove...

PT-2023-33822

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v6.0.16 Description The issue concerns repeated calls to sock put when a message has more data, potentially leading to security vulnerabilities. The actual impact and attack plausibility have not yet been proven...

PT-2023-34225

Name of the Vulnerable Software and Affected Versions Linux Kernel versions prior to v5.15.86 Description The issue concerns repeated calls to sock put when a message has more data, potentially leading to security vulnerabilities. The actual impact and attack plausibility have not yet been proven...