CVE-2026-80637

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description An issue exists in the netfilter synproxy component where unaligned memory access occurs during timestamp adjustment. This can lead to performance degradation or system crashes on architectures that enforce strict memory alignment. The problem is related to how timestamp fields are read and written, which should instead be handled by the get unaligned be32() and put unaligned be32() functions, following the logic used in tcp parse options() and synproxy parse options().

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.