bisecting fixing commit since cf256fbcbe347b7d0ff58fe2dfa382a156bd3694 building syzkaller on c0ced5570c6505a80235b64884c93e89733b77f3 testing commit cf256fbcbe347b7d0ff58fe2dfa382a156bd3694 compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 1069477bcb8be9674cdf7d0a562097d38fedda6cd38e30bcabe5c81b6050c190 run #0: crashed: KASAN: use-after-free Write in ext4_write_inline_data run #1: crashed: KASAN: slab-out-of-bounds Write in ext4_write_inline_data run #2: crashed: KASAN: slab-out-of-bounds Write in ext4_write_inline_data run #3: crashed: KASAN: slab-out-of-bounds Write in ext4_write_inline_data run #4: crashed: KASAN: slab-out-of-bounds Write in ext4_write_inline_data run #5: crashed: KASAN: use-after-free Write in ext4_write_inline_data run #6: crashed: KASAN: slab-out-of-bounds Write in ext4_write_inline_data run #7: crashed: KASAN: use-after-free Write in ext4_write_inline_data run #8: crashed: KASAN: slab-out-of-bounds Write in ext4_write_inline_data run #9: crashed: KASAN: use-after-free Write in ext4_write_inline_data run #10: crashed: KASAN: slab-out-of-bounds Write in ext4_write_inline_data run #11: crashed: KASAN: slab-out-of-bounds Write in ext4_write_inline_data run #12: crashed: KASAN: use-after-free Write in ext4_write_inline_data run #13: crashed: KASAN: slab-out-of-bounds Write in ext4_write_inline_data run #14: crashed: KASAN: use-after-free Write in ext4_write_inline_data run #15: crashed: KASAN: use-after-free Write in ext4_write_inline_data run #16: crashed: KASAN: use-after-free Write in ext4_write_inline_data run #17: crashed: KASAN: slab-out-of-bounds Write in ext4_write_inline_data run #18: crashed: KASAN: slab-out-of-bounds Write in ext4_write_inline_data run #19: crashed: KASAN: slab-out-of-bounds Write in ext4_write_inline_data testing current HEAD eb045674aab31aa55a4f9aec27cce36e3d946a21 testing commit eb045674aab31aa55a4f9aec27cce36e3d946a21 compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: ff91a7e6a49cf8e2ba64c747c42fd5d84bce9cc6f02d8240d1e62db742643b22 all runs: crashed: unregister_netdevice: waiting for DEV to become free revisions tested: 2, total time: 22m46.616897761s (build: 16m23.835642053s, test: 5m57.836458297s) the crash still happens on HEAD commit msg: Linux 4.14.272 crash: unregister_netdevice: waiting for DEV to become free 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: hci5 command 0x0409 tx timeout unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1 Bluetooth: hci1 command 0x041b tx timeout Bluetooth: hci5 command 0x041b tx timeout Bluetooth: hci0 command 0x041b tx timeout Bluetooth: hci2 command 0x041b tx timeout Bluetooth: hci4 command 0x041b tx timeout Bluetooth: hci3 command 0x041b tx timeout Bluetooth: hci3 command 0x040f tx timeout Bluetooth: hci5 command 0x040f tx timeout Bluetooth: hci4 command 0x040f tx timeout Bluetooth: hci2 command 0x040f tx timeout Bluetooth: hci0 command 0x040f tx timeout Bluetooth: hci1 command 0x040f tx timeout Bluetooth: hci3 command 0x0419 tx timeout Bluetooth: hci1 command 0x0419 tx timeout Bluetooth: hci0 command 0x0419 tx timeout Bluetooth: hci2 command 0x0419 tx timeout Bluetooth: hci4 command 0x0419 tx timeout Bluetooth: hci5 command 0x0419 tx timeout