INFO: task dhcpcd:4727 blocked for more than 143 seconds. Not tainted 6.7.0-next-20240111-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:dhcpcd state:D stack:22688 pid:4727 tgid:4727 ppid:4726 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5400 [inline] __schedule+0xf15/0x5ce0 kernel/sched/core.c:6727 __schedule_loop kernel/sched/core.c:6802 [inline] schedule+0xe7/0x280 kernel/sched/core.c:6817 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6874 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752 netlink_dump+0xc1/0xcc0 net/netlink/af_netlink.c:2211 netlink_recvmsg+0xa02/0xf20 net/netlink/af_netlink.c:1990 sock_recvmsg_nosec net/socket.c:1046 [inline] sock_recvmsg+0x1f6/0x250 net/socket.c:1068 ____sys_recvmsg+0x21f/0x6b0 net/socket.c:2803 ___sys_recvmsg+0x115/0x1a0 net/socket.c:2845 __sys_recvmsg+0x114/0x1e0 net/socket.c:2875 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd2/0x260 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x6d/0x75 RIP: 0033:0x7f740325891e RSP: 002b:00007ffdfc647628 EFLAGS: 00000246 ORIG_RAX: 000000000000002f RAX: ffffffffffffffda RBX: 00007ffdfc648750 RCX: 00007f740325891e RDX: 0000000000000000 RSI: 00007ffdfc648670 RDI: 0000000000000011 RBP: 00007ffdfc6486e0 R08: 0000000000000000 R09: 0000000000020000 R10: 00000000000000d3 R11: 0000000000000246 R12: 0000000000000c24 R13: 00007ffdfc648654 R14: 00007ffdfc648670 R15: 00007ffdfc648660 INFO: task kworker/0:3:8492 blocked for more than 143 seconds. Not tainted 6.7.0-next-20240111-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:3 state:D stack:23600 pid:8492 tgid:8492 ppid:2 flags:0x00004000 Workqueue: events switchdev_deferred_process_work Call Trace: context_switch kernel/sched/core.c:5400 [inline] __schedule+0xf15/0x5ce0 kernel/sched/core.c:6727 __schedule_loop kernel/sched/core.c:6802 [inline] schedule+0xe7/0x280 kernel/sched/core.c:6817 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6874 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752 switchdev_deferred_process_work+0xe/0x20 net/switchdev/switchdev.c:75 process_one_work+0x8a7/0x1600 kernel/workqueue.c:2633 process_scheduled_works kernel/workqueue.c:2706 [inline] worker_thread+0x8b6/0x1290 kernel/workqueue.c:2787 kthread+0x2c1/0x3a0 kernel/kthread.c:388 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:242 INFO: task kworker/1:4:28321 blocked for more than 143 seconds. Not tainted 6.7.0-next-20240111-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:4 state:D stack:23680 pid:28321 tgid:28321 ppid:2 flags:0x00004000 Workqueue: events linkwatch_event Call Trace: context_switch kernel/sched/core.c:5400 [inline] __schedule+0xf15/0x5ce0 kernel/sched/core.c:6727 __schedule_loop kernel/sched/core.c:6802 [inline] schedule+0xe7/0x280 kernel/sched/core.c:6817 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6874 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752 linkwatch_event+0x51/0xc0 net/core/link_watch.c:281 process_one_work+0x8a7/0x1600 kernel/workqueue.c:2633 process_scheduled_works kernel/workqueue.c:2706 [inline] worker_thread+0x8b6/0x1290 kernel/workqueue.c:2787 kthread+0x2c1/0x3a0 kernel/kthread.c:388 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:242 INFO: task syz-executor.2:12162 blocked for more than 144 seconds. Not tainted 6.7.0-next-20240111-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:24848 pid:12162 tgid:12162 ppid:1 flags:0x00000006 Call Trace: context_switch kernel/sched/core.c:5400 [inline] __schedule+0xf15/0x5ce0 kernel/sched/core.c:6727 __schedule_loop kernel/sched/core.c:6802 [inline] schedule+0xe7/0x280 kernel/sched/core.c:6817 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6874 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752 rtnl_lock net/core/rtnetlink.c:79 [inline] rtnetlink_rcv_msg+0x372/0xe10 net/core/rtnetlink.c:6612 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2543 netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline] netlink_unicast+0x542/0x820 net/netlink/af_netlink.c:1367 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] __sys_sendto+0x47f/0x4e0 net/socket.c:2191 __do_sys_sendto net/socket.c:2203 [inline] __se_sys_sendto net/socket.c:2199 [inline] __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2199 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd2/0x260 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x6d/0x75 RIP: 0033:0x7f5962c7ea1c RSP: 002b:00007ffdf69fe280 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f59638d4620 RCX: 00007f5962c7ea1c RDX: 0000000000000048 RSI: 00007f59638d4670 RDI: 0000000000000003 RBP: 0000000000000000 R08: 00007ffdf69fe2d4 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 R13: 0000000000000000 R14: 00007f59638d4670 R15: 0000000000000000 INFO: task syz-executor.0:12166 blocked for more than 144 seconds. Not tainted 6.7.0-next-20240111-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:23808 pid:12166 tgid:12166 ppid:1 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5400 [inline] __schedule+0xf15/0x5ce0 kernel/sched/core.c:6727 __schedule_loop kernel/sched/core.c:6802 [inline] schedule+0xe7/0x280 kernel/sched/core.c:6817 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6874 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752 rtnl_lock net/core/rtnetlink.c:79 [inline] rtnetlink_rcv_msg+0x372/0xe10 net/core/rtnetlink.c:6612 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2543 netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline] netlink_unicast+0x542/0x820 net/netlink/af_netlink.c:1367 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] __sys_sendto+0x47f/0x4e0 net/socket.c:2191 __do_sys_sendto net/socket.c:2203 [inline] __se_sys_sendto net/socket.c:2199 [inline] __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2199 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd2/0x260 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x6d/0x75 RIP: 0033:0x7f884027ea1c RSP: 002b:00007ffdbd60ec50 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f8840ed4620 RCX: 00007f884027ea1c RDX: 0000000000000020 RSI: 00007f8840ed4670 RDI: 0000000000000003 RBP: 0000000000000000 R08: 00007ffdbd60eca4 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 R13: 0000000000000000 R14: 00007f8840ed4670 R15: 0000000000000000 INFO: task syz-executor.1:12169 blocked for more than 144 seconds. Not tainted 6.7.0-next-20240111-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:24032 pid:12169 tgid:12169 ppid:1 flags:0x00000006 Call Trace: context_switch kernel/sched/core.c:5400 [inline] __schedule+0xf15/0x5ce0 kernel/sched/core.c:6727 __schedule_loop kernel/sched/core.c:6802 [inline] schedule+0xe7/0x280 kernel/sched/core.c:6817 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6874 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752 rtnl_lock net/core/rtnetlink.c:79 [inline] rtnetlink_rcv_msg+0x372/0xe10 net/core/rtnetlink.c:6612 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2543 netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline] netlink_unicast+0x542/0x820 net/netlink/af_netlink.c:1367 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] __sys_sendto+0x47f/0x4e0 net/socket.c:2191 __do_sys_sendto net/socket.c:2203 [inline] __se_sys_sendto net/socket.c:2199 [inline] __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2199 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd2/0x260 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x6d/0x75 RIP: 0033:0x7f694847ea1c RSP: 002b:00007ffe13869d00 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f69490d4620 RCX: 00007f694847ea1c RDX: 0000000000000020 RSI: 00007f69490d4670 RDI: 0000000000000003 RBP: 0000000000000000 R08: 00007ffe13869d54 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 R13: 0000000000000000 R14: 00007f69490d4670 R15: 0000000000000000 INFO: task syz-executor.5:12194 blocked for more than 145 seconds. Not tainted 6.7.0-next-20240111-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:24944 pid:12194 tgid:12194 ppid:1 flags:0x00000006 Call Trace: context_switch kernel/sched/core.c:5400 [inline] __schedule+0xf15/0x5ce0 kernel/sched/core.c:6727 __schedule_loop kernel/sched/core.c:6802 [inline] schedule+0xe7/0x280 kernel/sched/core.c:6817 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6874 __mutex_lock_common kernel/locking/mutex.c:684 [inline] __mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752 rtnl_lock net/core/rtnetlink.c:79 [inline] rtnetlink_rcv_msg+0x372/0xe10 net/core/rtnetlink.c:6612 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2543 netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline] netlink_unicast+0x542/0x820 net/netlink/af_netlink.c:1367 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1908 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] __sys_sendto+0x47f/0x4e0 net/socket.c:2191 __do_sys_sendto net/socket.c:2203 [inline] __se_sys_sendto net/socket.c:2199 [inline] __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2199 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xd2/0x260 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x6d/0x75 RIP: 0033:0x7f2a2a67ea1c RSP: 002b:00007fffea7fb310 EFLAGS: 00000293 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f2a2b2d4620 RCX: 00007f2a2a67ea1c RDX: 0000000000000028 RSI: 00007f2a2b2d4670 RDI: 0000000000000003 RBP: 0000000000000000 R08: 00007fffea7fb364 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003 R13: 0000000000000000 R14: 00007f2a2b2d4670 R15: 0000000000000000 Showing all locks held in the system: 1 lock held by khungtaskd/29: #0: ffffffff8d7aeba0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline] #0: ffffffff8d7aeba0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline] #0: ffffffff8d7aeba0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6614 1 lock held by dhcpcd/4727: #0: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: netlink_dump+0xc1/0xcc0 net/netlink/af_netlink.c:2211 2 locks held by getty/4815: #0: ffff88802c2a60a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243 #1: ffffc90002efe2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfc8/0x1490 drivers/tty/n_tty.c:2201 4 locks held by kworker/u4:15/6880: #0: ffff8880b943ccd8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x29/0x130 kernel/sched/core.c:559 #1: ffff8880b9428a08 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x2d9/0x900 kernel/sched/psi.c:988 #2: ffff88804cce0768 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: wiphy_lock include/net/cfg80211.h:5928 [inline] #2: ffff88804cce0768 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: cfg80211_wiphy_work+0x2b/0x330 net/wireless/core.c:424 #3: ffffffff8d7aeba0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline] #3: ffffffff8d7aeba0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline] #3: ffffffff8d7aeba0 (rcu_read_lock){....}-{1:2}, at: ieee80211_sta_active_ibss+0xe7/0x420 net/mac80211/ibss.c:642 3 locks held by kworker/1:3/8154: #0: ffff88802b7c8938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x78c/0x1600 kernel/workqueue.c:2608 #1: ffffc900037f7d80 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7f6/0x1600 kernel/workqueue.c:2609 #2: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x12/0x30 net/ipv6/addrconf.c:4671 3 locks held by kworker/0:3/8492: #0: ffff888014c94d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x78c/0x1600 kernel/workqueue.c:2608 #1: ffffc90012237d80 (deferred_process_work){+.+.}-{0:0}, at: process_one_work+0x7f6/0x1600 kernel/workqueue.c:2609 #2: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: switchdev_deferred_process_work+0xe/0x20 net/switchdev/switchdev.c:75 2 locks held by kworker/u4:12/9909: 3 locks held by kworker/0:6/15211: #0: ffff88802b7c8938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x78c/0x1600 kernel/workqueue.c:2608 #1: ffffc9000cd57d80 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7f6/0x1600 kernel/workqueue.c:2609 #2: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x12/0x30 net/ipv6/addrconf.c:4671 5 locks held by kworker/u4:0/23084: #0: ffff8880162ecd38 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x78c/0x1600 kernel/workqueue.c:2608 #1: ffffc9000dbafd80 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x7f6/0x1600 kernel/workqueue.c:2609 #2: ffffffff8f2b0510 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x9f/0xb20 net/core/net_namespace.c:580 #3: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0x93/0x610 net/core/dev.c:11596 #4: ffffffff8d7ba2c0 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x48/0x6c0 kernel/rcu/tree.c:4032 3 locks held by kworker/1:4/28321: #0: ffff888014c94d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x78c/0x1600 kernel/workqueue.c:2608 #1: ffffc90003eb7d80 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x7f6/0x1600 kernel/workqueue.c:2609 #2: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0x51/0xc0 net/core/link_watch.c:281 2 locks held by kworker/u4:1/11694: 1 lock held by syz-executor.2/12162: #0: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xe10 net/core/rtnetlink.c:6612 1 lock held by syz-executor.0/12166: #0: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xe10 net/core/rtnetlink.c:6612 1 lock held by syz-executor.1/12169: #0: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xe10 net/core/rtnetlink.c:6612 1 lock held by syz-executor.5/12194: #0: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xe10 net/core/rtnetlink.c:6612 1 lock held by syz-executor.3/12299: #0: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xe10 net/core/rtnetlink.c:6612 1 lock held by syz-executor.3/12302: #0: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xe10 net/core/rtnetlink.c:6612 1 lock held by syz-executor.2/12317: #0: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xe10 net/core/rtnetlink.c:6612 1 lock held by syz-executor.4/12321: #0: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: __netlink_dump_start+0x16f/0x9d0 net/netlink/af_netlink.c:2333 1 lock held by syz-executor.0/12322: #0: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xe10 net/core/rtnetlink.c:6612 1 lock held by syz-executor.1/12326: #0: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xe10 net/core/rtnetlink.c:6612 1 lock held by syz-executor.5/12329: #0: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xe10 net/core/rtnetlink.c:6612 1 lock held by syz-executor.3/12333: #0: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xe10 net/core/rtnetlink.c:6612 1 lock held by syz-executor.4/12338: #0: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xe10 net/core/rtnetlink.c:6612 1 lock held by syz-executor.2/12345: #0: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xe10 net/core/rtnetlink.c:6612 1 lock held by syz-executor.0/12350: #0: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xe10 net/core/rtnetlink.c:6612 1 lock held by syz-executor.1/12353: #0: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xe10 net/core/rtnetlink.c:6612 1 lock held by syz-executor.5/12357: #0: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xe10 net/core/rtnetlink.c:6612 1 lock held by syz-executor.3/12361: #0: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xe10 net/core/rtnetlink.c:6612 1 lock held by syz-executor.4/12366: #0: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline] #0: ffffffff8f2c5b68 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xe10 net/core/rtnetlink.c:6612 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.7.0-next-20240111-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106 nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x29c/0x300 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline] watchdog+0xf86/0x1210 kernel/hung_task.c:379 kthread+0x2c1/0x3a0 kernel/kthread.c:388 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:242 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 740 Comm: kworker/u4:4 Not tainted 6.7.0-next-20240111-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 Workqueue: events_unbound cfg80211_wiphy_work RIP: 0010:lockdep_recursion_finish kernel/locking/lockdep.c:467 [inline] RIP: 0010:lock_release+0x391/0x6a0 kernel/locking/lockdep.c:5776 Code: 85 4d 02 00 00 0b 05 de 6a f3 12 0f 84 65 01 00 00 48 c7 c7 60 bf 0c 8b e8 2c 3a 54 09 b8 ff ff ff ff 65 0f c1 05 e7 fe 96 7e <83> f8 01 0f 85 d3 01 00 00 9c 58 f6 c4 02 0f 85 be 01 00 00 48 f7 RSP: 0018:ffffc9000e5078e8 EFLAGS: 00000057 RAX: 0000000000000001 RBX: 3e8e7f1438048a33 RCX: ffffc9000e507938 RDX: 1ffff11008939c7e RSI: ffffffff8b0cbf60 RDI: ffffffff8b6fd8c0 RBP: 1ffff92001ca0f1f R08: 0000000000000000 R09: fffffbfff1f36722 R10: ffffffff8f9b3917 R11: 0000000000000003 R12: 0000000000000003 R13: 0000000000000004 R14: ffff8880449ce3f8 R15: ffff8880449cd940 FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c0076aa580 CR3: 000000000d578000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:165 [inline] _raw_spin_unlock_bh+0x16/0x30 kernel/locking/spinlock.c:210 spin_unlock_bh include/linux/spinlock.h:396 [inline] cfg80211_put_bss+0x1b4/0x280 net/wireless/scan.c:3115 ieee80211_rx_bss_put net/mac80211/scan.c:37 [inline] ieee80211_rx_bss_put+0x43/0x60 net/mac80211/scan.c:32 ieee80211_rx_bss_info net/mac80211/ibss.c:1170 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1577 [inline] ieee80211_ibss_rx_queued_mgmt+0x1b0d/0x3110 net/mac80211/ibss.c:1604 ieee80211_iface_process_skb net/mac80211/iface.c:1589 [inline] ieee80211_iface_work+0xa67/0xda0 net/mac80211/iface.c:1643 cfg80211_wiphy_work+0x255/0x330 net/wireless/core.c:437 process_one_work+0x8a7/0x1600 kernel/workqueue.c:2633 process_scheduled_works kernel/workqueue.c:2706 [inline] worker_thread+0x8b6/0x1290 kernel/workqueue.c:2787 kthread+0x2c1/0x3a0 kernel/kthread.c:388 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:242