bisecting fixing commit since 2b79150141611d3c6e1b55d4e70f49602482f0b8
building syzkaller on 8bc4594f832068a30c0eff44d468311780057d1f
testing commit 2b79150141611d3c6e1b55d4e70f49602482f0b8
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: db692a02b2a3478c08b6771ef05632797592f0a9638268f6a08704e3a9830d33
run #0: crashed: KASAN: out-of-bounds Read in tcf_action_destroy
run #1: crashed: BUG: unable to handle kernel paging request in tcf_action_destroy
run #2: crashed: general protection fault in __tcf_idr_release
run #3: crashed: general protection fault in __tcf_idr_release
run #4: crashed: general protection fault in __tcf_idr_release
run #5: crashed: general protection fault in __tcf_idr_release
run #6: crashed: general protection fault in __tcf_idr_release
run #7: crashed: general protection fault in __tcf_idr_release
run #8: crashed: general protection fault in __tcf_idr_release
run #9: crashed: general protection fault in __tcf_idr_release
run #10: crashed: general protection fault in __tcf_idr_release
run #11: crashed: BUG: unable to handle kernel paging request in tcf_action_destroy
run #12: crashed: general protection fault in __tcf_idr_release
run #13: crashed: KASAN: stack-out-of-bounds Read in tcf_action_destroy
run #14: crashed: general protection fault in __tcf_idr_release
run #15: crashed: KASAN: out-of-bounds Read in tcf_action_destroy
run #16: crashed: general protection fault in __tcf_idr_release
run #17: crashed: general protection fault in __tcf_idr_release
run #18: crashed: KASAN: stack-out-of-bounds Read in tcf_action_destroy
run #19: crashed: general protection fault in __tcf_idr_release
testing current HEAD 84bae26850e3b384a45f0f9a5f8b3b5983afacd8
testing commit 84bae26850e3b384a45f0f9a5f8b3b5983afacd8
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: a9259209ad57fa393c2c7030fb3885b6bc230288e9a55b757fa930cdface07b6
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 30m5.982880521s (build: 22m52.840725208s, test: 6m47.713388893s)
the crash still happens on HEAD
commit msg: Linux 4.14.284
crash: unregister_netdevice: waiting for DEV to become free
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
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: hci3 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci0 command 0x040f tx timeout
Bluetooth: hci3 command 0x040f 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: hci2 command 0x0419 tx timeout
Bluetooth: hci4 command 0x0419 tx timeout
Bluetooth: hci1 command 0x0419 tx timeout
Bluetooth: hci5 command 0x0419 tx timeout
Bluetooth: hci3 command 0x0419 tx timeout
Bluetooth: hci0 command 0x0419 tx timeout