libseccomp 2.6.1

packaging changes

• Enable Python bindings on Fedora 44+

upstream changes - July 1, 2026

• Update the syscall table for Linux v7.1.0-rc4
• Fix incorrect 64-bit comparison merge that can weaken libseccomp filters. See GitHub Advisory GHSA-4q85-33p6-j5g6
• Fix issue where oversized libseccomp filters can trigger a double free. See GitHub Advisory GHSA-46fr-jh49-xvhx
• Fix issue where oversized libseccomp filters can trigger a heap corruption. See GitHub Advisory GHSA-2hqh-5c36-grrm
• Fix struct aliasing undefined behavior in the internal libseccomp hash algorithm
• Fix issue where extraneous bytes were being copied to the destination buffer in seccomp_export_bpf_mem()
• Fix a bug where merged libseccomp filters failed to merge the notify_used flag, leading to no listener file descriptor being generated
• Update python shebang to point to python3
• Add documentation for seccomp_transaction_start()
• Since support for s390 has been removed from the upstream Linux kernel, freeze libseccomp's s390 syscall table at Linux v6.18