[Bug 268246] crash and panic using pfsync on 13.1-RELEASE

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=268246

--- Comment #100 from commit-hook@FreeBSD.org ---
A commit in branch stable/12 references this bug:

URL:
https://cgit.FreeBSD.org/src/commit/?id=09b7cab88f652e3a3682749e38c043d25dd7d0ed

commit 09b7cab88f652e3a3682749e38c043d25dd7d0ed
Author:     Kristof Provost <kp@FreeBSD.org>
AuthorDate: 2023-03-20 13:29:55 +0000
Commit:     Kristof Provost <kp@FreeBSD.org>
CommitDate: 2023-03-27 00:28:32 +0000

    pfsync: fix pfsync_undefer_state() locking

    pfsync_undefer_state() takes the bucket lock, but could get called from
    places (e.g. from pfsync_update_state() or pfsync_delete_state()) where
    we already held the lock.

    As it can also be called from places where we don't yet hold the lock
    create new locked variant for use when the lock is already held. Keep
    using pfsync_undefer_state() where the lock must still be taken.

    PR:             268246
    MFC after:      1 week
    Sponsored by:   Rubicon Communications, LLC (Netgate)

    (cherry picked from commit 53247cdf12449e90f6736ae563e4cce8315c923f)

 sys/netpfil/pf/if_pfsync.c | 22 ++++++++++++++++------
 1 file changed, 16 insertions(+), 6 deletions(-)

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