bisecting fixing commit since a844dc4c544291470aa69edbe2434b040794e269
building syzkaller on 1508f45368a309a3b1196a342b3d64ce7be4cc43
testing commit a844dc4c544291470aa69edbe2434b040794e269
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 2629158a837a82c740c7ce51c173d1b327783c250004d2507d9d088f14508a67
run #0: basic kernel testing failed: timed out
run #1: crashed: KASAN: null-ptr-deref Read in llcp_sock_getname
run #2: crashed: KASAN: null-ptr-deref Read in llcp_sock_getname
run #3: crashed: KASAN: null-ptr-deref Read in llcp_sock_getname
run #4: crashed: KASAN: null-ptr-deref Read in llcp_sock_getname
run #5: crashed: KASAN: null-ptr-deref Read in llcp_sock_getname
run #6: crashed: KASAN: null-ptr-deref Read in llcp_sock_getname
run #7: crashed: KASAN: null-ptr-deref Read in llcp_sock_getname
run #8: crashed: KASAN: null-ptr-deref Read in llcp_sock_getname
run #9: crashed: KASAN: null-ptr-deref Read in llcp_sock_getname
run #10: crashed: KASAN: null-ptr-deref Read in llcp_sock_getname
run #11: crashed: KASAN: null-ptr-deref Read in llcp_sock_getname
run #12: crashed: KASAN: null-ptr-deref Read in llcp_sock_getname
run #13: crashed: KASAN: null-ptr-deref Read in llcp_sock_getname
run #14: crashed: KASAN: null-ptr-deref Read in llcp_sock_getname
run #15: crashed: KASAN: null-ptr-deref Read in llcp_sock_getname
run #16: crashed: KASAN: null-ptr-deref Read in llcp_sock_getname
run #17: crashed: KASAN: null-ptr-deref Read in llcp_sock_getname
run #18: crashed: KASAN: null-ptr-deref Read in llcp_sock_getname
run #19: crashed: KASAN: null-ptr-deref Read in llcp_sock_getname
testing current HEAD 0447aa205abe1c0c016b4f7fa9d7c08d920b5c8e
testing commit 0447aa205abe1c0c016b4f7fa9d7c08d920b5c8e
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 7fbe7eab032a294aa6800d7e2c84933f53a6bbc95523f4bfface1774a273c63b
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 25m56.673694438s (build: 18m41.262967163s, test: 6m27.616926045s)
the crash still happens on HEAD
commit msg: Linux 4.14.254
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