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

Wed Oct  9 08:02

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



Warning: Permanently added '10.128.0.241' (ECDSA) to the list of known hosts.
2019/10/09 08:02:50 fuzzer started
2019/10/09 08:02:50 dialing manager at 10.128.0.248:59871
2019/10/09 08:02:50 syscalls: 496
2019/10/09 08:02:50 code coverage: enabled
2019/10/09 08:02:50 comparison tracing: enabled
2019/10/09 08:02:50 extra coverage: support is not implemented in syzkaller
2019/10/09 08:02:50 setuid sandbox: support is not implemented in syzkaller
2019/10/09 08:02:50 namespace sandbox: support is not implemented in syzkaller
2019/10/09 08:02:50 Android sandbox: support is not implemented in syzkaller
2019/10/09 08:02:50 fault injection: support is not implemented in syzkaller
2019/10/09 08:02:50 leak checking: support is not implemented in syzkaller
2019/10/09 08:02:50 net packet injection: enabled
2019/10/09 08:02:50 net device setup: support is not implemented in syzkaller
2019/10/09 08:02:50 concurrency sanitizer: support is not implemented in syzkaller
08:02:51 executing program 0:
poll(0x0, 0x0, 0xfa)
__semctl$IPC_SET(0x0, 0x0, 0xa, &(0x7f0000000200)={{0xffffffff2840029d}})

08:02:51 executing program 1:
mkdir(&(0x7f0000000100)='./file0\x00', 0x0)
mkdir(&(0x7f0000000000)='./file0/file0\x00', 0x0)
rmdir(&(0x7f0000000080)='./file0/file0\x00')

08:02:51 executing program 2:
r0 = open$dir(&(0x7f0000000280)='./file0\x00', 0x40000400000002c9, 0x0)
pwritev(r0, &(0x7f0000000080)=[{&(0x7f00000006c0), 0x100000}], 0x3, 0x0)
__semctl$IPC_SET(0x0, 0x0, 0xa, &(0x7f0000000300)={{0xffffffff284002b2}})
__semctl$IPC_SET(0x0, 0x0, 0xa, &(0x7f0000000300)={{0xffffffff284002a1}})
__semctl$IPC_SET(0x0, 0x0, 0xa, &(0x7f00000000c0)={{0xffffff7f2840029f}})

08:02:51 executing program 3:
pipe2(&(0x7f0000000000)={0xffffffffffffffff, <r0=>0xffffffffffffffff}, 0x0)
read(r0, &(0x7f0000000180)=""/172, 0xac)
__semctl$IPC_SET(0x0, 0x0, 0xa, &(0x7f0000000000)={{0xffffffff284002a7}})
__semctl$IPC_SET(0x0, 0x0, 0xa, &(0x7f0000000180)={{0xffffffff284002a2, 0x0, 0x0, 0x0, 0xffffffffffffffff}})
__semctl$IPC_SET(0x0, 0x0, 0xa, &(0x7f0000000000)={{0xffffffff2840029c}})
__semctl$IPC_SET(0x0, 0x0, 0xa, &(0x7f0000000080)={{0xfffeffff2840029b}})

login: panic: Assertion in_epoch(net_epoch_preempt) failed at /syzkaller/managers/i386/kernel/sys/net/if.c:3827
cpuid = 1
time = 1570608171
KDB: stack backtrace:
db_trace_self_wrapper() at db_trace_self_wrapper+0x47/frame 0xfffffe00242ec5b0
vpanic() at vpanic+0x1e0/frame 0xfffffe00242ec610
panic() at panic+0x43/frame 0xfffffe00242ec670
if_setlladdr() at if_setlladdr+0x34c/frame 0xfffffe00242ec6e0
ifhwioctl() at ifhwioctl+0x9e0/frame 0xfffffe00242ec770
ifioctl() at ifioctl+0x4c2/frame 0xfffffe00242ec840
kern_ioctl() at kern_ioctl+0x465/frame 0xfffffe00242ec8b0
sys_ioctl() at sys_ioctl+0x267/frame 0xfffffe00242ec980
amd64_syscall() at amd64_syscall+0x477/frame 0xfffffe00242ecab0
fast_syscall_common() at fast_syscall_common+0x101/frame 0xfffffe00242ecab0
--- syscall (54, FreeBSD ELF64, sys_ioctl), rip = 0x8004882ca, rsp = 0x7fffffffe428, rbp = 0x7fffffffe470 ---
KDB: enter: panic
[ thread pid 762 tid 100112 ]
Stopped at      kdb_enter+0x6a: movq    $0,kdb_why