bisecting fixing commit since ca4f2c56d4162a4a5236f2099b55453fb98296f9
building syzkaller on 0487ea6f5d997a8363eba0d2eb0ea7a925444555
testing commit ca4f2c56d4162a4a5236f2099b55453fb98296f9
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 8b3d612a84cfc0bca198aafe67317cfaf00506e8c1ce205a40e76f00f8a4397a
all runs: crashed: KASAN: use-after-free Read in vlan_dev_get_iflink
testing current HEAD e3a56aaade89bc89f33baec11b12538fc22536e2
testing commit e3a56aaade89bc89f33baec11b12538fc22536e2
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: b491770ff0772663f68a7df1b8c48216de7ffbbae88d8325d35e0d375069635e
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 31m59.69470566s (build: 24m25.564472555s, test: 6m51.799476583s)
the crash still happens on HEAD
commit msg: Linux 4.14.277
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1