bisecting fixing commit since 14b58326976de6ef3998eefec1dd7f8b38b97a75
building syzkaller on ff51e5229e0ee846d2fd687cb0dbca13de758c66
testing commit 14b58326976de6ef3998eefec1dd7f8b38b97a75
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 4cd71f5bc60afbf78e9977dedf3fdd4ec0f680177428685bdf97f2017f0d9e91
all runs: crashed: BUG: corrupted list in l2cap_chan_put
testing current HEAD 4ba8e26127c393c32776dff6d79c5b82de6dc542
testing commit 4ba8e26127c393c32776dff6d79c5b82de6dc542
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 7f6f0ab73ad1843eae693719a769f625f10d17619d3f00a22264e6704fa6190d
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 30m34.548546138s (build: 17m45.563278316s, test: 12m22.840799177s)
the crash still happens on HEAD
commit msg: Linux 4.14.262
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1