San PwnEscape

Scheda tecnica

Divulgata il

14 ottobre 2026

CVE

CVE-2026-99999

CVSS

9.3

Prodotto

Linux · Linux

In the Linux kernel, the following vulnerability has been resolved: ipv4: validate checksum_start before completing checksum If a packet with bad checksum metadata gets into the ipv4 stack, skb_checksum_help can corrupt the network header and cause a bunch of mischief. This was discovered and reported by Paulos, and has been reporoduced by others independently since. We really shouldn't allow such packets in, but as a defence in depth measure, let's also check before we complete the checksum. A more complete validation at input is forthcoming, but needs more work.

Fonti: pwn.ai