CVS commit: [netbsd-11] src/sys/external/bsd/ipf/netinet

["Martin Husemann" <martin%netbsd.org@localhost>]

Module Name:    src
Committed By:   martin
Date:           Wed Jun  3 18:24:52 UTC 2026

Modified Files:
        src/sys/external/bsd/ipf/netinet [netbsd-11]: ip_fil_netbsd.c

Log Message:
Pull up following revision(s) (requested by bouyer in ticket #295):

        sys/external/bsd/ipf/netinet/ip_fil_netbsd.c: revision 1.40

Explicitely check a pointer against NULL before computing a member address,
to avoid undefined behavior. Avoids the same NULL pointer check being
"optimised" later, leading to NULL pointer dereference.

It is expected that -fno-delete-null-pointer-checks would avoid this but
it does not.

For details see
https://mail-index.netbsd.org/tech-toolchain/2026/05/23/msg004818.html
and PR toolchain/60289


To generate a diff of this commit:
cvs rdiff -u -r1.39 -r1.39.4.1 \
    src/sys/external/bsd/ipf/netinet/ip_fil_netbsd.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.