panic: sbflush_internal: ccc 0 mb 0 mbcnt 256

Status: closed as invalid on 2021/05/11 20:52
Reported-by: syzbot+8af1046468044737c72d@syzkaller.appspotmail.com
First crash: 2732d, last: 2641d

Sample crash report:
login: panic: sbflush_internal: ccc 0 mb 0 mbcnt 256
cpuid = 0
time = 1556816630
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe0021231730
vpanic() at vpanic+0x1e0/frame 0xfffffe0021231790
panic() at panic+0x43/frame 0xfffffe00212317f0
sbrelease_internal() at sbrelease_internal+0x174/frame 0xfffffe0021231830
solisten_proto() at solisten_proto+0xc6/frame 0xfffffe0021231890
sctp_listen() at sctp_listen+0x4eb/frame 0xfffffe0021231900
solisten() at solisten+0x7a/frame 0xfffffe0021231940
kern_listen() at kern_listen+0x132/frame 0xfffffe0021231980
amd64_syscall() at amd64_syscall+0x436/frame 0xfffffe0021231ab0
fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe0021231ab0
--- syscall (0, FreeBSD ELF64, nosys), rip = 0x45772a, rsp = 0x7fffdfffdf88, rbp = 0x6b60c8 ---
KDB: enter: panic
[ thread pid 759 tid 100103 ]
Stopped at      kdb_enter+0x6a: movq    $0,kdb_why

Crashes (23):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2019/05/02 17:07 freebsd 62dd3c74c047 1852eb18 console log report syz C ci-freebsd-main
2019/04/12 04:46 freebsd 831bf1a1aa1d 8916f5e1 console log report syz ci-freebsd-main
2019/03/19 16:55 freebsd 5d2bb1696724 e4549234 console log report syz ci-freebsd-main
2019/06/18 10:24 freebsd ad062d552df4 e3f76baa console log report ci-freebsd-main
2019/06/13 05:24 freebsd 48cf3d0825d2 3f4e812b console log report ci-freebsd-main
2019/06/12 00:22 freebsd f47bc88408ff ea2f4006 console log report ci-freebsd-main
2019/06/08 17:59 freebsd a8fa0b8b8fd2 0159583c console log report ci-freebsd-main
2019/06/08 12:11 freebsd a8fa0b8b8fd2 0159583c console log report ci-freebsd-main
2019/06/07 13:59 freebsd d539480f53f3 b004e95a console log report ci-freebsd-main
2019/06/06 10:17 freebsd 6fb7bb7fca89 73a7d55b console log report ci-freebsd-main
2019/06/05 23:34 freebsd ae1a873a0d0b bfb4a51e console log report ci-freebsd-main
2019/06/05 23:21 freebsd ae1a873a0d0b bfb4a51e console log report ci-freebsd-main
2019/06/03 15:09 freebsd c7cdb4a80779 63bf051f console log report ci-freebsd-main
2019/05/21 07:25 freebsd e2abb7b27ea6 40046286 console log report ci-freebsd-main
2019/05/20 15:56 freebsd e2abb7b27ea6 40046286 console log report ci-freebsd-main
2019/05/19 00:55 freebsd e2abb7b27ea6 40046286 console log report ci-freebsd-main
2019/05/10 14:14 freebsd 23ca26e1d654 018207ef console log report ci-freebsd-main
2019/05/04 03:32 freebsd f8eceae59d49 d28f4ce5 console log report ci-freebsd-main
2019/05/02 08:28 freebsd 62dd3c74c047 1852eb18 console log report ci-freebsd-main
2019/04/12 04:19 freebsd 831bf1a1aa1d 8916f5e1 console log report ci-freebsd-main
2019/04/11 04:05 freebsd 092bc938ad2b e955ac50 console log report ci-freebsd-main
2019/03/27 12:44 freebsd 4871e6f10ee5 70d776a2 console log report ci-freebsd-main
2019/03/19 14:54 freebsd 5d2bb1696724 e4549234 console log report ci-freebsd-main
* Struck through repros no longer work on HEAD.