Autoloading module: intpm.ko
Starting background file system checks in 60 seconds.

Wed Oct  9 08:27

FreeBSD/amd64 (ci-freebsd-i386-4.c.syzkaller.internal) (ttyu0)



Warning: Permanently added '10.128.15.224' (ECDSA) to the list of known hosts.
2019/10/09 08:27:36 fuzzer started
2019/10/09 08:27:36 dialing manager at 10.128.0.248:59871
2019/10/09 08:27:36 syscalls: 496
2019/10/09 08:27:36 code coverage: enabled
2019/10/09 08:27:36 comparison tracing: enabled
2019/10/09 08:27:36 extra coverage: support is not implemented in syzkaller
2019/10/09 08:27:36 setuid sandbox: support is not implemented in syzkaller
2019/10/09 08:27:36 namespace sandbox: support is not implemented in syzkaller
2019/10/09 08:27:36 Android sandbox: support is not implemented in syzkaller
2019/10/09 08:27:36 fault injection: support is not implemented in syzkaller
2019/10/09 08:27:36 leak checking: support is not implemented in syzkaller
2019/10/09 08:27:36 net packet injection: enabled
2019/10/09 08:27:36 net device setup: support is not implemented in syzkaller
2019/10/09 08:27:36 concurrency sanitizer: support is not implemented in syzkaller
08:27:36 executing program 0:
pipe2(&(0x7f0000000100)={0xffffffffffffffff, <r0=>0xffffffffffffffff}, 0x0)
poll(&(0x7f0000000000)=[{}, {r0}], 0x2, 0xff)
__semctl$IPC_SET(0x0, 0x0, 0xa, &(0x7f0000000080)={{0x2840029e}})
__semctl$IPC_SET(0x0, 0x0, 0xa, &(0x7f0000000080)={{0xffffffff2840029b}})

08:27:36 executing program 1:
r0 = socket$inet_udp(0x2, 0x2, 0x0)
readv(r0, &(0x7f0000000240)=[{&(0x7f0000000000)=""/206, 0xce}, {0x0}], 0x2)
__semctl$IPC_SET(0x0, 0x0, 0xa, &(0x7f0000000000)={{0xffffffff284002cb}})
__semctl$IPC_SET(0x0, 0x0, 0xa, &(0x7f0000000200)={{0xffffffff2840029b}})
shutdown(r0, 0x0)

08:27:36 executing program 2:
ppoll(0x0, 0x0, 0x0, &(0x7f00000002c0), 0x8)
__semctl$IPC_SET(0x0, 0x0, 0xa, &(0x7f0000000200)={{0xffffffff2840029e}})
__semctl$IPC_SET(0x0, 0x0, 0xa, &(0x7f0000001200)={{0xffffffff2840029b}})

login: panic: Assertion in_epoch(net_epoch_preempt) failed at /syzkaller/managers/i386/kernel/sys/net/if.c:3827
cpuid = 1
time = 1570609656
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe00242ce5b0
vpanic() at vpanic+0x1e0/frame 0xfffffe00242ce610
panic() at panic+0x43/frame 0xfffffe00242ce670
if_setlladdr() at if_setlladdr+0x34c/frame 0xfffffe00242ce6e0
ifhwioctl() at ifhwioctl+0x9e0/frame 0xfffffe00242ce770
ifioctl() at ifioctl+0x4c2/frame 0xfffffe00242ce840
kern_ioctl() at kern_ioctl+0x465/frame 0xfffffe00242ce8b0
sys_ioctl() at sys_ioctl+0x267/frame 0xfffffe00242ce980
amd64_syscall() at amd64_syscall+0x477/frame 0xfffffe00242ceab0
fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe00242ceab0
--- syscall (54, FreeBSD ELF64, sys_ioctl), rip = 0x8004882ca, rsp = 0x7fffffffe428, rbp = 0x7fffffffe470 ---
KDB: enter: panic
[ thread pid 760 tid 100106 ]
Stopped at      kdb_enter+0x6a: movq    $0,kdb_why