bisecting fixing commit since 5b7a52cd2eef952cee8a72512ef370bcdef46636 building syzkaller on 96e03c1c31a7f2e7f80b2d8b9f3df117df5030d1 testing commit 5b7a52cd2eef952cee8a72512ef370bcdef46636 compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: b4bc44063fa828717fcc7717b3c83a42d685cf154073bd847d8e408b09d92c66 all runs: crashed: WARNING in sta_info_alloc testing current HEAD 84bae26850e3b384a45f0f9a5f8b3b5983afacd8 testing commit 84bae26850e3b384a45f0f9a5f8b3b5983afacd8 compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 06cf31b1d7f48ea0400e070c1cd99922577b23357bed11284f86d92ad79430e8 all runs: crashed: unregister_netdevice: waiting for DEV to become free revisions tested: 2, total time: 26m26.87246516s (build: 19m27.378508191s, test: 6m36.045186099s) the crash still happens on HEAD commit msg: Linux 4.14.284 crash: unregister_netdevice: waiting for DEV to become free IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready Bluetooth: hci0 command 0x0409 tx timeout 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