bisecting fixing commit since 958e517f4e16952e9a2e2d58fd32d28ae4e23dda
building syzkaller on c59079a693ad1d89c782f7db14b9f1c5629e2abc
testing commit 958e517f4e16952e9a2e2d58fd32d28ae4e23dda with gcc (GCC) 8.4.1 20210217
kernel signature: 5e513c34bb100b61eb41b99cd59d4a387f2255ad9431d7ae76c13a9ab205cb38
run #0: crashed: KASAN: use-after-free Read in search_by_entry_key
run #1: crashed: KASAN: use-after-free Read in search_by_entry_key
run #2: crashed: KASAN: use-after-free Read in search_by_entry_key
run #3: crashed: KASAN: use-after-free Read in search_by_entry_key
run #4: crashed: KASAN: use-after-free Read in search_by_entry_key
run #5: crashed: KASAN: use-after-free Read in search_by_entry_key
run #6: crashed: KASAN: use-after-free Read in search_by_entry_key
run #7: crashed: KASAN: use-after-free Read in search_by_entry_key
run #8: crashed: KASAN: use-after-free Read in search_by_entry_key
run #9: crashed: KASAN: out-of-bounds Read in search_by_entry_key
run #10: crashed: KASAN: use-after-free Read in search_by_entry_key
run #11: crashed: KASAN: use-after-free Read in search_by_entry_key
run #12: crashed: KASAN: use-after-free Read in search_by_entry_key
run #13: crashed: KASAN: use-after-free Read in search_by_entry_key
run #14: crashed: KASAN: use-after-free Read in search_by_entry_key
run #15: crashed: KASAN: use-after-free Read in search_by_entry_key
run #16: crashed: KASAN: use-after-free Read in search_by_entry_key
run #17: crashed: KASAN: use-after-free Read in search_by_entry_key
run #18: crashed: KASAN: use-after-free Read in search_by_entry_key
run #19: boot failed: kernel panic: VFS: Unable to mount root fs on unknown-block(8,1)
testing current HEAD 4e68c9b0763ff55eaa69d6e519f07515f1c9037b
testing commit 4e68c9b0763ff55eaa69d6e519f07515f1c9037b with gcc (GCC) 8.4.1 20210217
kernel signature: 5c3fe03d873f756931ea13df1f256d85cfa3d88c64ec8f10c0836f186132f5cc
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 31m20.557801223s (build: 15m58.615425911s, test: 14m59.626698731s)
the crash still happens on HEAD
commit msg: Linux 4.14.239
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci0 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci2 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci5 command 0x040f tx timeout
Bluetooth: hci4 command 0x040f tx timeout
Bluetooth: hci1 command 0x040f tx timeout
Bluetooth: hci0 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci2 command 0x0419 tx timeout