bisecting fixing commit since 43598c571e7ed29e4c81e35b4a870fe6b9f8d58e
building syzkaller on 4f7e1d0f5e1c44e2298738f690dde25c486cc65a
testing commit 43598c571e7ed29e4c81e35b4a870fe6b9f8d58e
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: c82e9b09b89b45acf3a0c58bc4aabe0d49f614b78e2a9ef008a2c367a8f7b2d9
all runs: crashed: BUG: unable to handle kernel NULL pointer dereference in vb2_vmalloc_put
testing current HEAD 5f9f3b0057d5c5782985784ba0159b05b4083055
testing commit 5f9f3b0057d5c5782985784ba0159b05b4083055
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 2b36d6f3b2e1c85d8d2ae1f0d73a13d590894c65b1952023ad46f3d5f36a6b5f
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 24m29.064228777s (build: 17m6.512703984s, test: 6m31.214991868s)
the crash still happens on HEAD
commit msg: Linux 4.14.255
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1