bisecting fixing commit since cbfa1702aaf69b2311ea1b35e04f113c48368c67 building syzkaller on 1b88c6d5c8477f1d4fb3b389443b200acc32e9a8 testing commit cbfa1702aaf69b2311ea1b35e04f113c48368c67 with gcc (GCC) 8.4.1 20210217 kernel signature: b54ea68d89e95c21b8f5e0a41a435421b4401396cdec32cd000bd8795260587a run #0: crashed: KASAN: use-after-free Read in ntfs_are_names_equal run #1: crashed: KASAN: use-after-free Read in ntfs_are_names_equal run #2: crashed: KASAN: use-after-free Read in ntfs_are_names_equal run #3: crashed: KASAN: use-after-free Read in ntfs_are_names_equal run #4: crashed: KASAN: use-after-free Read in ntfs_are_names_equal run #5: crashed: KASAN: use-after-free Read in ntfs_are_names_equal run #6: crashed: KASAN: use-after-free Read in ntfs_are_names_equal run #7: crashed: KASAN: use-after-free Read in ntfs_are_names_equal run #8: crashed: KASAN: use-after-free Read in ntfs_are_names_equal run #9: crashed: KASAN: use-after-free Read in ntfs_are_names_equal run #10: crashed: KASAN: use-after-free Read in ntfs_are_names_equal run #11: crashed: KASAN: use-after-free Read in ntfs_are_names_equal run #12: crashed: KASAN: use-after-free Read in ntfs_are_names_equal run #13: crashed: KASAN: use-after-free Read in ntfs_are_names_equal run #14: crashed: KASAN: out-of-bounds Read in ntfs_are_names_equal run #15: crashed: KASAN: use-after-free Read in ntfs_are_names_equal run #16: crashed: KASAN: use-after-free Read in ntfs_are_names_equal run #17: crashed: KASAN: use-after-free Read in ntfs_are_names_equal run #18: crashed: KASAN: use-after-free Read in ntfs_are_names_equal run #19: crashed: KASAN: use-after-free Read in ntfs_are_names_equal testing current HEAD ad8397a84e1e425e3f8221638cee2bfa237d9b2c testing commit ad8397a84e1e425e3f8221638cee2bfa237d9b2c with gcc (GCC) 8.4.1 20210217 kernel signature: 17f5e785c4f58071cd16a59c7272feef1fc7c63284f28e1935e13cbcf0ae3e97 all runs: crashed: unregister_netdevice: waiting for DEV to become free revisions tested: 2, total time: 32m20.431650782s (build: 25m4.767092219s, test: 6m35.713852247s) the crash still happens on HEAD commit msg: Linux 4.14.234 crash: unregister_netdevice: waiting for DEV to become free unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1 Bluetooth: hci0 command 0x0409 tx timeout Bluetooth: hci1 command 0x0409 tx timeout Bluetooth: hci5 command 0x0409 tx timeout Bluetooth: hci4 command 0x0409 tx timeout Bluetooth: hci3 command 0x0409 tx timeout Bluetooth: hci2 command 0x0409 tx timeout Bluetooth: hci2 command 0x041b tx timeout Bluetooth: hci3 command 0x041b tx timeout Bluetooth: hci4 command 0x041b tx timeout Bluetooth: hci5 command 0x041b tx timeout Bluetooth: hci1 command 0x041b tx timeout Bluetooth: hci0 command 0x041b tx timeout Bluetooth: hci0 command 0x040f tx timeout Bluetooth: hci1 command 0x040f tx timeout Bluetooth: hci5 command 0x040f tx timeout Bluetooth: hci4 command 0x040f tx timeout Bluetooth: hci3 command 0x040f tx timeout Bluetooth: hci2 command 0x040f tx timeout Bluetooth: hci2 command 0x0419 tx timeout Bluetooth: hci3 command 0x0419 tx timeout Bluetooth: hci4 command 0x0419 tx timeout Bluetooth: hci5 command 0x0419 tx timeout Bluetooth: hci1 command 0x0419 tx timeout Bluetooth: hci0 command 0x0419 tx timeout