bisecting fixing commit since cbfa1702aaf69b2311ea1b35e04f113c48368c67
building syzkaller on 4a77ae0bdc5cd75ebe88ce7c896aae6bbf457a29
testing commit cbfa1702aaf69b2311ea1b35e04f113c48368c67
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 9aa609a532ff298c331fb666abe8ab8b3997711de9dac70f059d8eb06a28de2b
run #0: crashed: KASAN: use-after-free Read in vgem_gem_dumb_create
run #1: crashed: KASAN: use-after-free Read in vgem_gem_dumb_create
run #2: crashed: KASAN: use-after-free Read in vgem_gem_dumb_create
run #3: crashed: KASAN: use-after-free Read in vgem_gem_dumb_create
run #4: crashed: KASAN: use-after-free Read in vgem_gem_dumb_create
run #5: crashed: KASAN: use-after-free Read in vgem_gem_dumb_create
run #6: crashed: KASAN: use-after-free Read in vgem_gem_dumb_create
run #7: crashed: KASAN: use-after-free Read in vgem_gem_dumb_create
run #8: crashed: KASAN: use-after-free Read in vgem_gem_dumb_create
run #9: crashed: KASAN: use-after-free Read in vgem_gem_dumb_create
run #10: crashed: KASAN: use-after-free Read in vgem_gem_dumb_create
run #11: crashed: KASAN: use-after-free Read in vgem_gem_dumb_create
run #12: crashed: WARNING in mutex_destroy
run #13: crashed: WARNING in mutex_destroy
run #14: crashed: WARNING in mutex_destroy
run #15: crashed: WARNING in mutex_destroy
run #16: crashed: WARNING in mutex_destroy
run #17: OK
run #18: OK
run #19: OK
testing current HEAD 74766a973637a02c32c04c1c6496e114e4855239
testing commit 74766a973637a02c32c04c1c6496e114e4855239
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 3df66ec84353212a771817734d048fbc040968ea8277583c60142faa8fe8c9e0
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 35m9.420482458s (build: 19m56.585329473s, test: 14m42.681732775s)
the crash still happens on HEAD
commit msg: Linux 4.14.275
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: hci0 command 0x0409 tx timeout
Bluetooth: hci2 command 0x0409 tx timeout
Bluetooth: hci5 command 0x0409 tx timeout
Bluetooth: hci4 command 0x0409 tx timeout
Bluetooth: hci1 command 0x0409 tx timeout
Bluetooth: hci3 command 0x0409 tx timeout
Bluetooth: hci2 command 0x041b tx timeout
Bluetooth: hci3 command 0x041b tx timeout
Bluetooth: hci4 command 0x041b tx timeout
Bluetooth: hci1 command 0x041b tx timeout
Bluetooth: hci5 command 0x041b tx timeout
Bluetooth: hci0 command 0x041b tx timeout
Bluetooth: hci3 command 0x040f tx timeout
Bluetooth: hci0 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: 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
Bluetooth: hci3 command 0x0419 tx timeout