bisecting fixing commit since 12cd844a39ed16aa183a820a54fe6f9a0bb4cd14
building syzkaller on 749688d22abef3f3cb9a0480e15c19a3f2ed8e13
testing commit 12cd844a39ed16aa183a820a54fe6f9a0bb4cd14
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 0b6ab194dd590581c4875e9b0e8b53c7e9c47070c15073828c92097ede97927f
all runs: crashed: KASAN: use-after-free Read in xfrm6_tunnel_destroy
testing current HEAD f96eb53cbd76415edfba99c2cfa88567a885a428
testing commit f96eb53cbd76415edfba99c2cfa88567a885a428
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 09943aec581214c27f2c9b6bb3e8d594ac7b1b40e941a64ab4bd1bbcd4d173b4
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 34m40.9830591s (build: 21m12.635422845s, test: 12m20.652817185s)
the crash still happens on HEAD
commit msg: Linux 4.14.246
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