bisecting fixing commit since 43598c571e7ed29e4c81e35b4a870fe6b9f8d58e
building syzkaller on 4f7e1d0f5e1c44e2298738f690dde25c486cc65a
testing commit 43598c571e7ed29e4c81e35b4a870fe6b9f8d58e
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 4798cd0f1c24b98c998eda174367df1e2383059fa01cbbeec966c0792c3f85ff
all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in vb2_vmalloc_put
testing current HEAD 964f3712e6a7447d9d3203f2be3f6c50e78ea179
testing commit 964f3712e6a7447d9d3203f2be3f6c50e78ea179
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 5af10b27320c85939ab8da844d946dac82ce7588f7f2517545e2884311205d93
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 26m26.661056059s (build: 19m19.009220791s, test: 6m10.520784326s)
the crash still happens on HEAD
commit msg: Linux 4.14.240
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