[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.97' (ECDSA) to the list of known hosts. executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program write to /proc/sys/kernel/hung_task_check_interval_secs failed: No such file or directory executing program syzkaller login: [ 46.339334] ================================================================== [ 46.346877] BUG: KASAN: use-after-free in refcount_dec_not_one+0x9a/0xc0 [ 46.353871] Read of size 4 at addr ffff8880a5714858 by task syz-executor360/9755 [ 46.361388] [ 46.363009] CPU: 1 PID: 9755 Comm: syz-executor360 Not tainted 4.14.307-syzkaller #0 [ 46.370872] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 46.380211] Call Trace: [ 46.382792] dump_stack+0x1b2/0x281 [ 46.386409] print_address_description.cold+0x54/0x1d3 [ 46.391698] kasan_report_error.cold+0x8a/0x191 [ 46.396357] ? refcount_dec_not_one+0x9a/0xc0 [ 46.400884] __asan_report_load4_noabort+0x68/0x70 [ 46.405820] ? refcount_dec_not_one+0x9a/0xc0 [ 46.410301] refcount_dec_not_one+0x9a/0xc0 [ 46.414614] refcount_dec_and_mutex_lock+0x1a/0x60 [ 46.419559] nbd_genl_connect+0xce1/0x13e0 [ 46.423791] ? nbd_xmit_timeout+0x500/0x500 [ 46.428134] ? validate_nla+0x192/0x5e0 [ 46.432102] ? nla_parse+0x157/0x1f0 [ 46.435823] genl_family_rcv_msg+0x572/0xb20 [ 46.440230] ? genl_rcv+0x40/0x40 [ 46.443681] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 46.449116] ? __switch_to_asm+0x25/0x60 [ 46.453167] ? trace_hardirqs_on+0x10/0x10 [ 46.457403] genl_rcv_msg+0xaf/0x140 [ 46.461125] netlink_rcv_skb+0x125/0x390 [ 46.465317] ? genl_family_rcv_msg+0xb20/0xb20 [ 46.469982] ? netlink_ack+0x9a0/0x9a0 [ 46.473869] ? lock_acquire+0x170/0x3f0 [ 46.477842] genl_rcv+0x24/0x40 [ 46.481109] netlink_unicast+0x437/0x610 [ 46.485158] ? netlink_sendskb+0xd0/0xd0 [ 46.489209] ? __check_object_size+0x179/0x230 [ 46.493794] netlink_sendmsg+0x651/0xbc0 [ 46.497870] ? nlmsg_notify+0x1b0/0x1b0 [ 46.501825] ? kernel_recvmsg+0x210/0x210 [ 46.505962] ? security_socket_sendmsg+0x83/0xb0 [ 46.510716] ? nlmsg_notify+0x1b0/0x1b0 [ 46.514695] sock_sendmsg+0xb5/0x100 [ 46.518398] ___sys_sendmsg+0x6c8/0x800 [ 46.522359] ? copy_msghdr_from_user+0x3b0/0x3b0 [ 46.527113] ? netlink_dump+0xb90/0xb90 [ 46.531079] ? nlmsg_notify+0x1b0/0x1b0 [ 46.535043] ? security_socket_recvmsg+0x8b/0xc0 [ 46.539788] ? SyS_recvfrom+0x27f/0x340 [ 46.543761] ? SyS_send+0x40/0x40 [ 46.547198] ? vm_insert_page+0x7c0/0x7c0 [ 46.551342] ? __fdget+0x167/0x1f0 [ 46.554868] ? sockfd_lookup_light+0xb2/0x160 [ 46.559347] __sys_sendmsg+0xa3/0x120 [ 46.563134] ? SyS_shutdown+0x160/0x160 [ 46.567098] ? up_read+0x17/0x30 [ 46.570452] ? __do_page_fault+0x159/0xad0 [ 46.574673] SyS_sendmsg+0x27/0x40 [ 46.578210] ? __sys_sendmsg+0x120/0x120 [ 46.582288] do_syscall_64+0x1d5/0x640 [ 46.586166] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 46.591336] RIP: 0033:0x7f9872bd5ce9 [ 46.595028] RSP: 002b:00007ffc51989648 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 46.602723] RAX: ffffffffffffffda RBX: 000000000000b4ad RCX: 00007f9872bd5ce9 [ 46.609993] RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000003 [ 46.617368] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 46.624653] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5198968c [ 46.632027] R13: 00007ffc519896c0 R14: 00007ffc519896a0 R15: 0000000000000108 [ 46.639496] [ 46.641113] Allocated by task 9751: [ 46.644751] kasan_kmalloc+0xeb/0x160 [ 46.648539] kmem_cache_alloc_trace+0x131/0x3d0 [ 46.653290] nbd_dev_add+0x7c/0x800 [ 46.656901] nbd_genl_connect+0x3a4/0x13e0 [ 46.661122] genl_family_rcv_msg+0x572/0xb20 [ 46.665526] genl_rcv_msg+0xaf/0x140 [ 46.669235] netlink_rcv_skb+0x125/0x390 [ 46.673278] genl_rcv+0x24/0x40 [ 46.676557] netlink_unicast+0x437/0x610 [ 46.680619] netlink_sendmsg+0x651/0xbc0 [ 46.684668] sock_sendmsg+0xb5/0x100 [ 46.688370] ___sys_sendmsg+0x6c8/0x800 [ 46.692327] __sys_sendmsg+0xa3/0x120 [ 46.696127] SyS_sendmsg+0x27/0x40 [ 46.699655] do_syscall_64+0x1d5/0x640 [ 46.703539] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 46.708895] [ 46.710798] Freed by task 9755: [ 46.714073] kasan_slab_free+0xc3/0x1a0 [ 46.718052] kfree+0xc9/0x250 [ 46.721149] nbd_put.part.0+0x100/0x140 [ 46.725106] nbd_config_put+0x51c/0x6c0 [ 46.729081] nbd_genl_connect+0xcb9/0x13e0 [ 46.733301] genl_family_rcv_msg+0x572/0xb20 [ 46.737695] genl_rcv_msg+0xaf/0x140 [ 46.741393] netlink_rcv_skb+0x125/0x390 [ 46.745451] genl_rcv+0x24/0x40 [ 46.748727] netlink_unicast+0x437/0x610 [ 46.752772] netlink_sendmsg+0x651/0xbc0 [ 46.756818] sock_sendmsg+0xb5/0x100 [ 46.760607] ___sys_sendmsg+0x6c8/0x800 [ 46.764570] __sys_sendmsg+0xa3/0x120 [ 46.768353] SyS_sendmsg+0x27/0x40 [ 46.771877] do_syscall_64+0x1d5/0x640 [ 46.775749] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 46.781005] [ 46.782617] The buggy address belongs to the object at ffff8880a5714780 [ 46.782617] which belongs to the cache kmalloc-512 of size 512 [ 46.795261] The buggy address is located 216 bytes inside of [ 46.795261] 512-byte region [ffff8880a5714780, ffff8880a5714980) [ 46.807130] The buggy address belongs to the page: [ 46.812046] page:ffffea000295c500 count:1 mapcount:0 mapping:ffff8880a5714000 index:0x0 [ 46.820174] flags: 0xfff00000000100(slab) [ 46.824314] raw: 00fff00000000100 ffff8880a5714000 0000000000000000 0000000100000006 [ 46.832183] raw: ffffea0002acece0 ffffea0002621d20 ffff88813fe74940 0000000000000000 [ 46.840053] page dumped because: kasan: bad access detected [ 46.845834] [ 46.847450] Memory state around the buggy address: [ 46.852367] ffff8880a5714700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 46.859722] ffff8880a5714780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 46.867068] >ffff8880a5714800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 46.874414] ^ [ 46.880629] ffff8880a5714880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 46.887973] ffff8880a5714900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 46.895315] ================================================================== [ 46.902655] Disabling lock debugging due to kernel taint [ 46.908946] Kernel panic - not syncing: KASAN: panic_on_warn set ... [ 46.908946] [ 46.916927] CPU: 1 PID: 9755 Comm: syz-executor360 Tainted: G B 4.14.307-syzkaller #0 [ 46.926140] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 46.935495] Call Trace: [ 46.938088] dump_stack+0x1b2/0x281 [ 46.941729] panic+0x21d/0x451 [ 46.944929] ? add_taint.cold+0x16/0x16 [ 46.948909] ? ___preempt_schedule+0x16/0x18 [ 46.953327] ? preempt_schedule_common+0x45/0xc0 [ 46.958090] ? ___preempt_schedule+0x16/0x18 [ 46.962503] check_panic_on_warn.cold+0x19/0x35 [ 46.967265] kasan_end_report+0x3a/0x40 [ 46.971244] kasan_report_error.cold+0xa7/0x191 [ 46.975906] ? refcount_dec_not_one+0x9a/0xc0 [ 46.980390] __asan_report_load4_noabort+0x68/0x70 [ 46.985307] ? refcount_dec_not_one+0x9a/0xc0 [ 46.989801] refcount_dec_not_one+0x9a/0xc0 [ 46.994116] refcount_dec_and_mutex_lock+0x1a/0x60 [ 46.999053] nbd_genl_connect+0xce1/0x13e0 [ 47.003274] ? nbd_xmit_timeout+0x500/0x500 [ 47.007668] ? validate_nla+0x192/0x5e0 [ 47.011630] ? nla_parse+0x157/0x1f0 [ 47.015346] genl_family_rcv_msg+0x572/0xb20 [ 47.019743] ? genl_rcv+0x40/0x40 [ 47.023184] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 47.028617] ? __switch_to_asm+0x25/0x60 [ 47.032661] ? trace_hardirqs_on+0x10/0x10 [ 47.036907] genl_rcv_msg+0xaf/0x140 [ 47.040608] netlink_rcv_skb+0x125/0x390 [ 47.044667] ? genl_family_rcv_msg+0xb20/0xb20 [ 47.049232] ? netlink_ack+0x9a0/0x9a0 [ 47.053118] ? lock_acquire+0x170/0x3f0 [ 47.057083] genl_rcv+0x24/0x40 [ 47.060347] netlink_unicast+0x437/0x610 [ 47.064398] ? netlink_sendskb+0xd0/0xd0 [ 47.068447] ? __check_object_size+0x179/0x230 [ 47.073011] netlink_sendmsg+0x651/0xbc0 [ 47.077077] ? nlmsg_notify+0x1b0/0x1b0 [ 47.081037] ? kernel_recvmsg+0x210/0x210 [ 47.085294] ? security_socket_sendmsg+0x83/0xb0 [ 47.090050] ? nlmsg_notify+0x1b0/0x1b0 [ 47.094024] sock_sendmsg+0xb5/0x100 [ 47.097736] ___sys_sendmsg+0x6c8/0x800 [ 47.101705] ? copy_msghdr_from_user+0x3b0/0x3b0 [ 47.106470] ? netlink_dump+0xb90/0xb90 [ 47.110455] ? nlmsg_notify+0x1b0/0x1b0 [ 47.114435] ? security_socket_recvmsg+0x8b/0xc0 [ 47.119192] ? SyS_recvfrom+0x27f/0x340 [ 47.123153] ? SyS_send+0x40/0x40 [ 47.126682] ? vm_insert_page+0x7c0/0x7c0 [ 47.130841] ? __fdget+0x167/0x1f0 [ 47.134459] ? sockfd_lookup_light+0xb2/0x160 [ 47.139160] __sys_sendmsg+0xa3/0x120 [ 47.142957] ? SyS_shutdown+0x160/0x160 [ 47.146934] ? up_read+0x17/0x30 [ 47.150304] ? __do_page_fault+0x159/0xad0 [ 47.154529] SyS_sendmsg+0x27/0x40 [ 47.158056] ? __sys_sendmsg+0x120/0x120 [ 47.162119] do_syscall_64+0x1d5/0x640 [ 47.166066] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 47.171256] RIP: 0033:0x7f9872bd5ce9 [ 47.175057] RSP: 002b:00007ffc51989648 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 47.182749] RAX: ffffffffffffffda RBX: 000000000000b4ad RCX: 00007f9872bd5ce9 [ 47.190006] RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000003 [ 47.197276] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 47.204533] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffc5198968c [ 47.211792] R13: 00007ffc519896c0 R14: 00007ffc519896a0 R15: 0000000000000108 [ 47.219448] Kernel Offset: disabled [ 47.223082] Rebooting in 86400 seconds..