[Bug 280701] FreeBSD-SA-24:05 fix breaks ICMP/ICMP6 states handling in pf firewall (ping, traceroute)

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=280701

--- Comment #14 from commit-hook@FreeBSD.org ---
A commit in branch main references this bug:

URL:
https://cgit.FreeBSD.org/src/commit/?id=2da98eef1f352c496ffd458b4c68ddee972bb903

commit 2da98eef1f352c496ffd458b4c68ddee972bb903
Author:     Kristof Provost <kp@FreeBSD.org>
AuthorDate: 2024-08-12 14:07:35 +0000
Commit:     Kristof Provost <kp@FreeBSD.org>
CommitDate: 2024-08-13 11:23:17 +0000

    pf: fix icmp-in-icmp state lookup

    In 534ee17e6 pf state checking for ICMP(v6) was made stricter. This change
    failed to correctly set the pf_pdesc for ICMP-in-ICMP lookups, resulting in
ICMP
    error packets potentially being dropped incorrectly.
    Specially, it copied the ICMP header into a separate variable, not into the
    pf_pdesc.

    Populate the required pf_pdesc fields for the embedded ICMP packet's state
lookup.

    PR:             280701
    MFC after:      1 week
    Sponsored by:   Rubicon Communications, LLC ("Netgate")

 sys/netpfil/pf/pf.c | 31 +++++++++++++++++--------------
 1 file changed, 17 insertions(+), 14 deletions(-)

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