bisecting fixing commit since 397a88b2cc869c823bf40bc403d36a62afec1edd building syzkaller on 9d751681c8ca1ef150e96f3c1e18bdcaab99c9b9 testing commit 397a88b2cc869c823bf40bc403d36a62afec1edd compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 57077d3a8982e2aff0b6e42ef494fee702220bd9fa20122ffb4a0c645c3b3ef2 all runs: crashed: KASAN: slab-out-of-bounds Read in pdu_read testing current HEAD dffb5c6ff09c51ed585e3e7665143df103867fc8 testing commit dffb5c6ff09c51ed585e3e7665143df103867fc8 compiler: gcc version 8.4.1 20210217 (GCC) kernel signature: 785ebfc50a8c2b9ca5af8396d3f2d9589c3db4cafa9376898b0f6f5519ce6f07 all runs: crashed: unregister_netdevice: waiting for DEV to become free revisions tested: 2, total time: 22m3.019972827s (build: 14m43.974234174s, test: 6m46.48368605s) the crash still happens on HEAD commit msg: Linux 4.14.280 crash: unregister_netdevice: waiting for DEV to become free Bluetooth: hci0 command 0x0409 tx timeout unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1 Bluetooth: hci0 command 0x041b tx timeout Bluetooth: hci0 command 0x040f tx timeout Bluetooth: hci0 command 0x0419 tx timeout