bisecting fixing commit since cbfa1702aaf69b2311ea1b35e04f113c48368c67
building syzkaller on 4a77ae0bdc5cd75ebe88ce7c896aae6bbf457a29
testing commit cbfa1702aaf69b2311ea1b35e04f113c48368c67
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 43246ebfcd134bec12796dbab556fb65bdccb76829ca3d08b0f14c1d02a6822e
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: WARNING in mutex_destroy
run #11: crashed: general protection fault in vgem_fence_attach_ioctl
run #12: crashed: general protection fault in vgem_fence_attach_ioctl
run #13: crashed: WARNING in mutex_destroy
run #14: crashed: general protection fault in vgem_fence_attach_ioctl
run #15: crashed: general protection fault in vgem_fence_attach_ioctl
run #16: crashed: WARNING in mutex_destroy
run #17: OK
run #18: crashed: general protection fault in vgem_fence_attach_ioctl
run #19: OK
testing current HEAD eb045674aab31aa55a4f9aec27cce36e3d946a21
testing commit eb045674aab31aa55a4f9aec27cce36e3d946a21
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 7ea7f383c4fe4074ec990e7720e26e7f14c6f9e818942789ed4e175a3dd966b6
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 35m12.740137185s (build: 20m19.463139783s, test: 14m20.227125329s)
the crash still happens on HEAD
commit msg: Linux 4.14.272
crash: unregister_netdevice: waiting for DEV to become free
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: hci0 command 0x0409 tx timeout
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1
Bluetooth: hci0 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: hci1 command 0x041b tx timeout
Bluetooth: hci1 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: hci0 command 0x040f tx timeout
Bluetooth: hci0 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
Bluetooth: hci1 command 0x0419 tx timeout