bisecting fixing commit since 501eec4f9e138b958fc7438e7a745c0d6a7c68b3
building syzkaller on 02dddea803b3dcfa0e472bb94d3e540e8f1b457b
testing commit 501eec4f9e138b958fc7438e7a745c0d6a7c68b3
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 2f6bf3d9dd281e376ea087bbcc35710f6ece3a279b1cdb9292d6345916dcc794
all runs: crashed: unregister_netdevice: waiting for DEV to become free
testing current HEAD 424a46ea058e160ae6fdd0693092ba79da533f26
testing commit 424a46ea058e160ae6fdd0693092ba79da533f26
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 20e709be0cfc6b5cf01ff4ee3234fd6f8c531fb79546bd1b17acb0b06b4cbba9
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 26m7.69110591s (build: 19m23.894911966s, test: 6m12.061661432s)
the crash still happens on HEAD
commit msg: Linux 4.14.288
crash: unregister_netdevice: waiting for DEV to become free
IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready
syz-executor.0 (7987) used greatest stack depth: 23912 bytes left
can: request_module (can-proto-0) failed.
can: request_module (can-proto-0) failed.
can: request_module (can-proto-0) failed.
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci0 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci0 command 0x0419 tx timeout