panic: sctp: no chunks on the queues

[syzbot]

Hello,

syzbot found the following crash on:

HEAD commit: 8b8564b5 Use internal command variables for consistent sty..
git tree: freebsd
console output: https://syzkaller.appspot.com/x/log.txt?x=15371bf7200000
dashboard link: https://syzkaller.appspot.com/bug?extid=b957cf1e01cda2018436

Unfortunately, I don't have any reproducer for this crash yet.

IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+b957cf...@syzkaller.appspotmail.com

panic: No chunks on the queues for sid 8.
cpuid = 1
time = 229
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame
0xfffffe0016ad96f0
vpanic() at vpanic+0x1e0/frame 0xfffffe0016ad9750
panic() at panic+0x43/frame 0xfffffe0016ad97b0
sctp_free_assoc() at sctp_free_assoc+0x32b3/frame 0xfffffe0016ad9850
sctp_timeout_handler() at sctp_timeout_handler+0x167f/frame
0xfffffe0016ad98e0
softclock_call_cc() at softclock_call_cc+0x1dd/frame 0xfffffe0016ad99b0
softclock() at softclock+0xa3/frame 0xfffffe0016ad99f0
ithread_loop() at ithread_loop+0x2f2/frame 0xfffffe0016ad9a60
fork_exit() at fork_exit+0xb0/frame 0xfffffe0016ad9ab0
fork_trampoline() at fork_trampoline+0xe/frame 0xfffffe0016ad9ab0
--- trap 0, rip = 0, rsp = 0, rbp = 0 ---
KDB: enter: panic
[ thread pid 12 tid 100018 ]
Stopped at kdb_enter+0x6a: movq $0,kdb_why


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[syzbot]

Auto-closing this bug as obsolete.
Crashes did not happen for a while, no reproducer and no activity.