Warning: Permanently added '10.128.0.178' (ECDSA) to the list of known hosts. 2019/10/09 05:24:20 fuzzer started 2019/10/09 05:24:20 dialing manager at 10.128.0.248:59871 2019/10/09 05:24:20 syscalls: 496 2019/10/09 05:24:20 code coverage: enabled 2019/10/09 05:24:20 comparison tracing: enabled 2019/10/09 05:24:20 extra coverage: support is not implemented in syzkaller 2019/10/09 05:24:20 setuid sandbox: support is not implemented in syzkaller 2019/10/09 05:24:20 namespace sandbox: support is not implemented in syzkaller 2019/10/09 05:24:20 Android sandbox: support is not implemented in syzkaller 2019/10/09 05:24:20 fault injection: support is not implemented in syzkaller 2019/10/09 05:24:20 leak checking: support is not implemented in syzkaller 2019/10/09 05:24:20 net packet injection: enabled 2019/10/09 05:24:20 net device setup: support is not implemented in syzkaller 2019/10/09 05:24:20 concurrency sanitizer: support is not implemented in syzkaller 05:24:20 executing program 0: r0 = socket$inet_udp(0x2, 0x2, 0x0) recvmsg(r0, &(0x7f0000000680)={0x0, 0x0, &(0x7f0000000600)=[{&(0x7f0000000080)=""/137, 0x89}, {0x0}, {0x0}], 0x3, 0x0}, 0x0) __semctl$IPC_SET(0x0, 0x0, 0xa, &(0x7f00000001c0)={{0xffffffff2840029f}}) shutdown(r0, 0x0) 05:24:20 executing program 1: pipe2(&(0x7f00000001c0)={0xffffffffffffffff}, 0x0) poll(&(0x7f0000000180)=[{}, {r0}], 0x2, 0xff) __semctl$IPC_SET(0x0, 0x0, 0xa, &(0x7f0000000380)={{0xffffffff284002a8}}) __semctl$IPC_SET(0x0, 0x0, 0xa, &(0x7f0000000080)={{0xffffffff284002a2}}) __semctl$IPC_SET(0x0, 0x0, 0xa, &(0x7f00000002c0)={{0xffffffff284002a1}}) __semctl$IPC_SET(0x0, 0x0, 0xa, &(0x7f0000000000)={{0xffffffff2840029b, 0x0, 0x0, 0x0, 0xffffffffffffffff}}) 05:24:20 executing program 2: poll(&(0x7f00000001c0)=[{}], 0x1, 0xf8) __semctl$IPC_SET(0x0, 0x0, 0xa, &(0x7f00000007c0)={{0xffffffff2840029e}}) 05:24:20 executing program 3: r0 = open(&(0x7f0000000000)='./file0\x00', 0xa00, 0x0) poll(&(0x7f00000000c0)=[{}, {}, {}, {}, {r0}], 0x5, 0x200) __semctl$IPC_SET(0x0, 0x0, 0xa, &(0x7f00000000c0)={{0xff7fffff284002a3}}) login: panic: Assertion in_epoch(net_epoch_preempt) failed at /syzkaller/managers/i386/kernel/sys/net/if.c:3827 cpuid = 0 time = 1570598660 KDB: stack backtrace: db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe00242f15b0 vpanic() at vpanic+0x1e0/frame 0xfffffe00242f1610 panic() at panic+0x43/frame 0xfffffe00242f1670 if_setlladdr() at if_setlladdr+0x34c/frame 0xfffffe00242f16e0 ifhwioctl() at ifhwioctl+0x9e0/frame 0xfffffe00242f1770 ifioctl() at ifioctl+0x4c2/frame 0xfffffe00242f1840 kern_ioctl() at kern_ioctl+0x465/frame 0xfffffe00242f18b0 sys_ioctl() at sys_ioctl+0x267/frame 0xfffffe00242f1980 amd64_syscall() at amd64_syscall+0x477/frame 0xfffffe00242f1ab0 fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe00242f1ab0 --- syscall (54, FreeBSD ELF64, sys_ioctl), rip = 0x8004882ca, rsp = 0x7fffffffe428, rbp = 0x7fffffffe470 --- KDB: enter: panic [ thread pid 767 tid 100113 ] Stopped at kdb_enter+0x6a: movq $0,kdb_why