executing program
syzkaller login: [  132.467282] device gre0 entered promiscuous mode
[  181.216038] BUG: workqueue lockup - pool cpus=2 node=1 flags=0x0 nice=0 stuck for 48s!
[  181.216824] Showing busy workqueues and worker pools:
[  181.217472] workqueue events: flags=0x0
[  181.217863]   pwq 4: cpus=2 node=1 flags=0x0 nice=0 active=2/256
[  181.218490]     pending: cache_reap, e1000_watchdog
[  181.218974] workqueue mm_percpu_wq: flags=0x8
[  181.219399]   pwq 4: cpus=2 node=1 flags=0x0 nice=0 active=1/256
[  181.219955]     pending: vmstat_update
[  181.220353] workqueue ipv6_addrconf: flags=0x40008
[  181.221278]   pwq 4: cpus=2 node=1 flags=0x0 nice=0 active=1/1
[  181.221857]     pending: addrconf_dad_work