Warning: Permanently added '10.128.1.83' (ED25519) to the list of known hosts. executing program [ 363.650646][ T6121] tipc: Started in network mode [ 363.651975][ T6121] tipc: Node identity , cluster identity 4711 [ 363.653409][ T6121] tipc: Failed to obtain node identity [ 363.654756][ T6121] tipc: Enabling of bearer rejected, failed to enable media [ 363.657249][ T6121] tipc: Started in network mode [ 363.659223][ T6121] tipc: Node identity 7f000001, cluster identity 4711 [ 363.661815][ T6121] tipc: Enabled bearer , priority 10 executing program [ 363.667521][ T6122] tipc: Enabled bearer , priority 10 [ 363.669901][ T6122] tipc: Enabling of bearer rejected, already enabled [ 364.778890][ T5676] tipc: Node number set to 2130706433 [ 571.358393][ T29] INFO: task kworker/1:0:23 blocked for more than 143 seconds. [ 571.360149][ T29] Not tainted 6.7.0-rc6-syzkaller-gaafe7ad77b91 #0 [ 571.361814][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 571.363762][ T29] task:kworker/1:0 state:D stack:0 pid:23 tgid:23 ppid:2 flags:0x00000008 [ 571.366216][ T29] Workqueue: ipv6_addrconf addrconf_verify_work [ 571.367799][ T29] Call trace: [ 571.369582][ T29] __switch_to+0x314/0x560 [ 571.370729][ T29] __schedule+0x1354/0x2360 [ 571.371802][ T29] schedule+0xb8/0x19c [ 571.372780][ T29] schedule_preempt_disabled+0x18/0x2c [ 571.374112][ T29] __mutex_lock_common+0xbd8/0x21a0 [ 571.375426][ T29] mutex_lock_nested+0x2c/0x38 [ 571.376640][ T29] rtnl_lock+0x20/0x2c [ 571.377603][ T29] addrconf_verify_work+0x20/0x3c [ 571.379454][ T29] process_one_work+0x694/0x1204 [ 571.380609][ T29] worker_thread+0x938/0xef4 [ 571.381725][ T29] kthread+0x288/0x310 [ 571.382589][ T29] ret_from_fork+0x10/0x20 [ 571.383723][ T29] [ 571.383723][ T29] Showing all locks held in the system: [ 571.385572][ T29] 3 locks held by kworker/1:0/23: [ 571.386755][ T29] #0: ffff0000d22c0938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x560/0x1204 [ 571.389955][ T29] #1: ffff800093fe7c20 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x5a0/0x1204 [ 571.393167][ T29] #2: ffff800090f6ffa8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock+0x20/0x2c [ 571.395320][ T29] 1 lock held by khungtaskd/29: [ 571.396454][ T29] #0: ffff80008e6c48c0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0xc/0x44 [ 571.400092][ T29] 2 locks held by getty/5855: [ 571.401317][ T29] #0: ffff0000d75800a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3c/0x4c [ 571.403597][ T29] #1: ffff800094e402f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41c/0x1228 [ 571.405986][ T29] 3 locks held by syz-executor128/6122: [ 571.407265][ T29] [ 571.407829][ T29] ============================================= [ 571.407829][ T29] [ 571.410852][ T29] Kernel panic - not syncing: hung_task: blocked tasks [ 571.412522][ T29] CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.7.0-rc6-syzkaller-gaafe7ad77b91 #0 [ 571.414766][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023 [ 571.417095][ T29] Call trace: [ 571.417862][ T29] dump_backtrace+0x1b8/0x1e4 [ 571.418970][ T29] show_stack+0x2c/0x3c [ 571.420025][ T29] dump_stack_lvl+0xd0/0x124 [ 571.421127][ T29] dump_stack+0x1c/0x28 [ 571.422115][ T29] panic+0x30c/0x88c [ 571.423073][ T29] hung_task_panic+0x0/0x2c [ 571.424167][ T29] kthread+0x288/0x310 [ 571.425103][ T29] ret_from_fork+0x10/0x20 [ 571.426190][ T29] SMP: stopping secondary CPUs [ 571.427322][ T29] Kernel Offset: disabled [ 571.428368][ T29] CPU features: 0x0,00000020,7002004a,21017203 [ 571.429908][ T29] Memory Limit: none [ 571.767068][ T29] Rebooting in 86400 seconds..