ALPINE-CVE-2026-31912

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ALPINE-CVE-2026-31912

Summary:

Details: libpcap BPF interpreter detects neither reaching the end of the filter program buffer due to lack of a return instruction nor executing a jump instruction with an offset that translates to a pointer outside of the buffer. In particular uncommon use cases a crafted filter program can cause the interpreter to try reading the OS process memory in the 32GiB around the buffer on 64-bit architectures and in the entire address space on 32-bit architectures.

References: https://security.alpinelinux.org/vuln/CVE-2026-31912