bisecting fixing commit since 7d7d1c0ab3eb7c8d8f63a126535018007823b207 building syzkaller on 77e2b66864e69c17416614228723a1ebd3581ddc testing commit 7d7d1c0ab3eb7c8d8f63a126535018007823b207 compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: bb824ec8e42934bbd2c2f7e124796b9e03f670f66ac396e24f7690a477dd6674 run #0: crashed: WARNING in aa_audit_file run #1: crashed: WARNING in aa_audit_file run #2: crashed: WARNING in aa_audit_file run #3: crashed: WARNING in aa_audit_file run #4: crashed: WARNING in aa_audit_file run #5: crashed: WARNING in aa_audit_file run #6: crashed: WARNING in corrupted run #7: crashed: WARNING in aa_audit_file run #8: crashed: WARNING in aa_audit_file run #9: crashed: WARNING in aa_audit_file run #10: crashed: WARNING in aa_audit_file run #11: crashed: WARNING in aa_audit_file run #12: crashed: WARNING in aa_audit_file run #13: crashed: WARNING in aa_audit_file run #14: crashed: WARNING in aa_audit_file run #15: crashed: WARNING in aa_audit_file run #16: crashed: WARNING in aa_audit_file run #17: crashed: WARNING in aa_audit_file run #18: crashed: WARNING in aa_audit_file run #19: crashed: WARNING in aa_audit_file testing current HEAD 5f9f3b0057d5c5782985784ba0159b05b4083055 testing commit 5f9f3b0057d5c5782985784ba0159b05b4083055 compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 4afa67f4ac0a2281d67489fdb807409a3e364ca3fa67367437359e6b42897656 all runs: crashed: unregister_netdevice: waiting for DEV to become free revisions tested: 2, total time: 25m16.338627203s (build: 18m17.935411937s, test: 6m30.486450486s) the crash still happens on HEAD commit msg: Linux 4.14.255 crash: unregister_netdevice: waiting for DEV to become free 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: hci5 command 0x0409 tx timeout Bluetooth: hci1 command 0x0409 tx timeout Bluetooth: hci4 command 0x0409 tx timeout Bluetooth: hci2 command 0x0409 tx timeout Bluetooth: hci0 command 0x0409 tx timeout Bluetooth: hci3 command 0x0409 tx timeout Bluetooth: hci3 command 0x041b tx timeout Bluetooth: hci0 command 0x041b tx timeout Bluetooth: hci2 command 0x041b tx timeout Bluetooth: hci4 command 0x041b tx timeout Bluetooth: hci1 command 0x041b tx timeout Bluetooth: hci5 command 0x041b tx timeout Bluetooth: hci5 command 0x040f tx timeout Bluetooth: hci1 command 0x040f tx timeout Bluetooth: hci4 command 0x040f tx timeout Bluetooth: hci2 command 0x040f tx timeout Bluetooth: hci0 command 0x040f tx timeout Bluetooth: hci3 command 0x040f tx timeout Bluetooth: hci3 command 0x0419 tx timeout Bluetooth: hci0 command 0x0419 tx timeout Bluetooth: hci2 command 0x0419 tx timeout Bluetooth: hci4 command 0x0419 tx timeout Bluetooth: hci1 command 0x0419 tx timeout Bluetooth: hci5 command 0x0419 tx timeout