INFO: task syz-executor242:3241 blocked for more than 143 seconds. Not tainted 6.1.0-rc6-syzkaller-32662-g6d464646530f #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor242 state:D stack:0 pid:3241 ppid:3154 flags:0x00000001 Call trace: __switch_to+0x180/0x298 arch/arm64/kernel/process.c:553 context_switch kernel/sched/core.c:5209 [inline] __schedule+0x408/0x594 kernel/sched/core.c:6521 schedule+0x64/0xa4 kernel/sched/core.c:6597 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6656 __mutex_lock_common+0x788/0xca8 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x38/0x44 kernel/locking/mutex.c:799 nfnl_lock net/netfilter/nfnetlink.c:97 [inline] nfnetlink_rcv_msg+0x614/0xa2c net/netfilter/nfnetlink.c:294 netlink_rcv_skb+0xe8/0x1d4 net/netlink/af_netlink.c:2540 nfnetlink_rcv+0x12c/0xd68 net/netfilter/nfnetlink.c:659 netlink_unicast_kernel+0xfc/0x1dc net/netlink/af_netlink.c:1319 netlink_unicast+0x164/0x248 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x484/0x584 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x2f8/0x440 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x1ac/0x228 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __arm64_sys_sendmsg+0x2c/0x3c net/socket.c:2572 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584 INFO: task syz-executor242:3242 blocked for more than 143 seconds. Not tainted 6.1.0-rc6-syzkaller-32662-g6d464646530f #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor242 state:D stack:0 pid:3242 ppid:3156 flags:0x00000001 Call trace: __switch_to+0x180/0x298 arch/arm64/kernel/process.c:553 context_switch kernel/sched/core.c:5209 [inline] __schedule+0x408/0x594 kernel/sched/core.c:6521 schedule+0x64/0xa4 kernel/sched/core.c:6597 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6656 __mutex_lock_common+0x788/0xca8 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x38/0x44 kernel/locking/mutex.c:799 nfnl_lock net/netfilter/nfnetlink.c:97 [inline] nfnetlink_rcv_msg+0x614/0xa2c net/netfilter/nfnetlink.c:294 netlink_rcv_skb+0xe8/0x1d4 net/netlink/af_netlink.c:2540 nfnetlink_rcv+0x12c/0xd68 net/netfilter/nfnetlink.c:659 netlink_unicast_kernel+0xfc/0x1dc net/netlink/af_netlink.c:1319 netlink_unicast+0x164/0x248 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x484/0x584 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x2f8/0x440 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x1ac/0x228 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __arm64_sys_sendmsg+0x2c/0x3c net/socket.c:2572 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584 INFO: task syz-executor242:3243 blocked for more than 143 seconds. Not tainted 6.1.0-rc6-syzkaller-32662-g6d464646530f #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor242 state:D stack:0 pid:3243 ppid:3151 flags:0x00000001 Call trace: __switch_to+0x180/0x298 arch/arm64/kernel/process.c:553 context_switch kernel/sched/core.c:5209 [inline] __schedule+0x408/0x594 kernel/sched/core.c:6521 schedule+0x64/0xa4 kernel/sched/core.c:6597 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6656 __mutex_lock_common+0x788/0xca8 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x38/0x44 kernel/locking/mutex.c:799 nfnl_lock net/netfilter/nfnetlink.c:97 [inline] nfnetlink_rcv_msg+0x614/0xa2c net/netfilter/nfnetlink.c:294 netlink_rcv_skb+0xe8/0x1d4 net/netlink/af_netlink.c:2540 nfnetlink_rcv+0x12c/0xd68 net/netfilter/nfnetlink.c:659 netlink_unicast_kernel+0xfc/0x1dc net/netlink/af_netlink.c:1319 netlink_unicast+0x164/0x248 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x484/0x584 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x2f8/0x440 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x1ac/0x228 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __arm64_sys_sendmsg+0x2c/0x3c net/socket.c:2572 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584 INFO: task syz-executor242:3244 blocked for more than 143 seconds. Not tainted 6.1.0-rc6-syzkaller-32662-g6d464646530f #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor242 state:D stack:0 pid:3244 ppid:3152 flags:0x00000001 Call trace: __switch_to+0x180/0x298 arch/arm64/kernel/process.c:553 context_switch kernel/sched/core.c:5209 [inline] __schedule+0x408/0x594 kernel/sched/core.c:6521 schedule+0x64/0xa4 kernel/sched/core.c:6597 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6656 __mutex_lock_common+0x788/0xca8 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x38/0x44 kernel/locking/mutex.c:799 nfnl_lock net/netfilter/nfnetlink.c:97 [inline] nfnetlink_rcv_msg+0x614/0xa2c net/netfilter/nfnetlink.c:294 netlink_rcv_skb+0xe8/0x1d4 net/netlink/af_netlink.c:2540 nfnetlink_rcv+0x12c/0xd68 net/netfilter/nfnetlink.c:659 netlink_unicast_kernel+0xfc/0x1dc net/netlink/af_netlink.c:1319 netlink_unicast+0x164/0x248 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x484/0x584 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x2f8/0x440 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x1ac/0x228 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __arm64_sys_sendmsg+0x2c/0x3c net/socket.c:2572 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584 INFO: task syz-executor242:3245 blocked for more than 143 seconds. Not tainted 6.1.0-rc6-syzkaller-32662-g6d464646530f #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor242 state:D stack:0 pid:3245 ppid:3155 flags:0x00000009 Call trace: __switch_to+0x180/0x298 arch/arm64/kernel/process.c:553 context_switch kernel/sched/core.c:5209 [inline] __schedule+0x408/0x594 kernel/sched/core.c:6521 schedule+0x64/0xa4 kernel/sched/core.c:6597 schedule_preempt_disabled+0x18/0x2c kernel/sched/core.c:6656 __mutex_lock_common+0x788/0xca8 kernel/locking/mutex.c:679 __mutex_lock kernel/locking/mutex.c:747 [inline] mutex_lock_nested+0x38/0x44 kernel/locking/mutex.c:799 nfnl_lock net/netfilter/nfnetlink.c:97 [inline] nfnetlink_rcv_msg+0x614/0xa2c net/netfilter/nfnetlink.c:294 netlink_rcv_skb+0xe8/0x1d4 net/netlink/af_netlink.c:2540 nfnetlink_rcv+0x12c/0xd68 net/netfilter/nfnetlink.c:659 netlink_unicast_kernel+0xfc/0x1dc net/netlink/af_netlink.c:1319 netlink_unicast+0x164/0x248 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x484/0x584 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x2f8/0x440 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x1ac/0x228 net/socket.c:2565 __do_sys_sendmsg net/socket.c:2574 [inline] __se_sys_sendmsg net/socket.c:2572 [inline] __arm64_sys_sendmsg+0x2c/0x3c net/socket.c:2572 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584 Showing all locks held in the system: 1 lock held by rcu_tasks_kthre/11: #0: ffff80000d4a4768 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x3c/0x450 kernel/rcu/tasks.h:507 1 lock held by rcu_tasks_trace/12: #0: ffff80000d4a4db8 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x3c/0x450 kernel/rcu/tasks.h:507 1 lock held by khungtaskd/27: #0: ffff80000d4a4640 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x4/0x48 include/linux/rcupdate.h:303 2 locks held by getty/2757: #0: ffff0000c7ec6098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x28/0x58 drivers/tty/tty_ldisc.c:244 #1: ffff80000f6be2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x19c/0x89c drivers/tty/n_tty.c:2177 1 lock held by syz-executor242/3240: 1 lock held by syz-executor242/3241: #0: ffff80000f1c90b0 (nfnl_subsys_ipset){+.+.}-{3:3}, at: nfnl_lock net/netfilter/nfnetlink.c:97 [inline] #0: ffff80000f1c90b0 (nfnl_subsys_ipset){+.+.}-{3:3}, at: nfnetlink_rcv_msg+0x614/0xa2c net/netfilter/nfnetlink.c:294 1 lock held by syz-executor242/3242: #0: ffff80000f1c90b0 (nfnl_subsys_ipset){+.+.}-{3:3}, at: nfnl_lock net/netfilter/nfnetlink.c:97 [inline] #0: ffff80000f1c90b0 (nfnl_subsys_ipset){+.+.}-{3:3}, at: nfnetlink_rcv_msg+0x614/0xa2c net/netfilter/nfnetlink.c:294 1 lock held by syz-executor242/3243: #0: ffff80000f1c90b0 (nfnl_subsys_ipset){+.+.}-{3:3}, at: nfnl_lock net/netfilter/nfnetlink.c:97 [inline] #0: ffff80000f1c90b0 (nfnl_subsys_ipset){+.+.}-{3:3}, at: nfnetlink_rcv_msg+0x614/0xa2c net/netfilter/nfnetlink.c:294 1 lock held by syz-executor242/3244: #0: ffff80000f1c90b0 (nfnl_subsys_ipset){+.+.}-{3:3}, at: nfnl_lock net/netfilter/nfnetlink.c:97 [inline] #0: ffff80000f1c90b0 (nfnl_subsys_ipset){+.+.}-{3:3}, at: nfnetlink_rcv_msg+0x614/0xa2c net/netfilter/nfnetlink.c:294 1 lock held by syz-executor242/3245: #0: ffff80000f1c90b0 (nfnl_subsys_ipset){+.+.}-{3:3}, at: nfnl_lock net/netfilter/nfnetlink.c:97 [inline] #0: ffff80000f1c90b0 (nfnl_subsys_ipset){+.+.}-{3:3}, at: nfnetlink_rcv_msg+0x614/0xa2c net/netfilter/nfnetlink.c:294 =============================================