bisecting fixing commit since ca4f2c56d4162a4a5236f2099b55453fb98296f9
building syzkaller on 0487ea6f5d997a8363eba0d2eb0ea7a925444555
testing commit ca4f2c56d4162a4a5236f2099b55453fb98296f9
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 9b87294ad28e1321b726d59b75995e9845e50dccd2287b0ec223758c4a167277
all runs: crashed: KASAN: use-after-free Read in vlan_dev_get_iflink
testing current HEAD c9fcc1545c3bb19f4e04b1c82bf5c2856fef39bd
testing commit c9fcc1545c3bb19f4e04b1c82bf5c2856fef39bd
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 05c705eb6c7bb1c9f806e20c01d99056396684cf7dadbaecf555ce5595871cb2
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 32m18.513405772s (build: 24m42.517926068s, test: 6m55.810926243s)
the crash still happens on HEAD
commit msg: Linux 4.14.270
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