bisecting fixing commit since 14b58326976de6ef3998eefec1dd7f8b38b97a75
building syzkaller on f721e4a097714a9054b9fe1aadf427afbbd2c157
testing commit 14b58326976de6ef3998eefec1dd7f8b38b97a75
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: fb3d2dd92bda6e5043bb211c08c257f83ab082a64969e589d260f7c1a5041915
all runs: crashed: KASAN: use-after-free Read in lock_sock_nested
testing current HEAD a6ca7c65b1376f7bb14979cb745d3da73c8de948
testing commit a6ca7c65b1376f7bb14979cb745d3da73c8de948
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: 0775a83e8595a5b6fc2ed6dac85e0c807f18c8d8b810e16c8dc519108ac79b8d
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 26m52.577757231s (build: 18m25.132252848s, test: 7m54.157306866s)
the crash still happens on HEAD
commit msg: Linux 4.14.260
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1