INFO: task kworker/1:0:22 blocked for more than 143 seconds. Not tainted 6.5.0-rc7-syzkaller-00022-ga5e505a99ca7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:0 state:D stack:23616 pid:22 ppid:2 flags:0x00004000 Workqueue: ipv6_addrconf addrconf_dad_work Call Trace: context_switch kernel/sched/core.c:5381 [inline] __schedule+0xee1/0x59f0 kernel/sched/core.c:6710 schedule+0xe7/0x1b0 kernel/sched/core.c:6786 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6845 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x967/0x1340 kernel/locking/mutex.c:747 addrconf_dad_work+0xcf/0x1410 net/ipv6/addrconf.c:4093 process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2600 worker_thread+0x687/0x1110 kernel/workqueue.c:2751 kthread+0x33a/0x430 kernel/kthread.c:389 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304 INFO: task kworker/1:9:15046 blocked for more than 143 seconds. Not tainted 6.5.0-rc7-syzkaller-00022-ga5e505a99ca7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:9 state:D stack:24336 pid:15046 ppid:2 flags:0x00004000 Workqueue: events linkwatch_event Call Trace: context_switch kernel/sched/core.c:5381 [inline] __schedule+0xee1/0x59f0 kernel/sched/core.c:6710 schedule+0xe7/0x1b0 kernel/sched/core.c:6786 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6845 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x967/0x1340 kernel/locking/mutex.c:747 linkwatch_event+0x51/0xc0 net/core/link_watch.c:277 process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2600 process_scheduled_works kernel/workqueue.c:2667 [inline] worker_thread+0x896/0x1110 kernel/workqueue.c:2753 kthread+0x33a/0x430 kernel/kthread.c:389 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304 INFO: task kworker/1:2:19992 blocked for more than 144 seconds. Not tainted 6.5.0-rc7-syzkaller-00022-ga5e505a99ca7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:2 state:D stack:24528 pid:19992 ppid:2 flags:0x00004000 Workqueue: events switchdev_deferred_process_work Call Trace: context_switch kernel/sched/core.c:5381 [inline] __schedule+0xee1/0x59f0 kernel/sched/core.c:6710 schedule+0xe7/0x1b0 kernel/sched/core.c:6786 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6845 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x967/0x1340 kernel/locking/mutex.c:747 switchdev_deferred_process_work+0xe/0x20 net/switchdev/switchdev.c:75 process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2600 worker_thread+0x687/0x1110 kernel/workqueue.c:2751 kthread+0x33a/0x430 kernel/kthread.c:389 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304 INFO: task kworker/0:18:21867 blocked for more than 144 seconds. Not tainted 6.5.0-rc7-syzkaller-00022-ga5e505a99ca7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/0:18 state:D stack:26848 pid:21867 ppid:2 flags:0x00004000 Workqueue: ipv6_addrconf addrconf_verify_work Call Trace: context_switch kernel/sched/core.c:5381 [inline] __schedule+0xee1/0x59f0 kernel/sched/core.c:6710 schedule+0xe7/0x1b0 kernel/sched/core.c:6786 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6845 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x967/0x1340 kernel/locking/mutex.c:747 addrconf_verify_work+0x12/0x30 net/ipv6/addrconf.c:4635 process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2600 worker_thread+0x687/0x1110 kernel/workqueue.c:2751 kthread+0x33a/0x430 kernel/kthread.c:389 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304 INFO: task syz-executor.0:22766 blocked for more than 145 seconds. Not tainted 6.5.0-rc7-syzkaller-00022-ga5e505a99ca7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.0 state:D stack:24080 pid:22766 ppid:1 flags:0x20004006 Call Trace: context_switch kernel/sched/core.c:5381 [inline] __schedule+0xee1/0x59f0 kernel/sched/core.c:6710 schedule+0xe7/0x1b0 kernel/sched/core.c:6786 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6845 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x967/0x1340 kernel/locking/mutex.c:747 wiphy_lock include/net/cfg80211.h:5776 [inline] reg_process_self_managed_hints+0x78/0x170 net/wireless/reg.c:3181 wiphy_register+0x2232/0x2ce0 net/wireless/core.c:983 ieee80211_register_hw+0x24d1/0x4250 net/mac80211/main.c:1392 mac80211_hwsim_new_radio+0x2893/0x50f0 drivers/net/wireless/virtual/mac80211_hwsim.c:5303 hwsim_new_radio_nl+0xaf8/0x1240 drivers/net/wireless/virtual/mac80211_hwsim.c:5983 genl_family_rcv_msg_doit.isra.0+0x1ef/0x2d0 net/netlink/genetlink.c:970 genl_family_rcv_msg net/netlink/genetlink.c:1050 [inline] genl_rcv_msg+0x559/0x800 net/netlink/genetlink.c:1067 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2549 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1078 netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline] netlink_unicast+0x539/0x800 net/netlink/af_netlink.c:1365 netlink_sendmsg+0x93c/0xe30 net/netlink/af_netlink.c:1914 sock_sendmsg_nosec net/socket.c:725 [inline] sock_sendmsg+0xd9/0x180 net/socket.c:748 __sys_sendto+0x255/0x340 net/socket.c:2134 __do_compat_sys_socketcall+0x5df/0x700 net/compat.c:475 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0x61/0xe0 arch/x86/entry/common.c:178 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203 entry_SYSENTER_compat_after_hwframe+0x70/0x82 RIP: 0023:0xf7fb3579 RSP: 002b:00000000f749fe50 EFLAGS: 00000293 ORIG_RAX: 0000000000000066 RAX: ffffffffffffffda RBX: 000000000000000b RCX: 00000000f749fe64 RDX: 0000000000000000 RSI: 00000000f7ea4568 RDI: 00000000f7353ff4 RBP: 00000000f7ea4568 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 INFO: task syz-executor.3:22769 blocked for more than 146 seconds. Not tainted 6.5.0-rc7-syzkaller-00022-ga5e505a99ca7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.3 state:D stack:24208 pid:22769 ppid:1 flags:0x20000006 Call Trace: context_switch kernel/sched/core.c:5381 [inline] __schedule+0xee1/0x59f0 kernel/sched/core.c:6710 schedule+0xe7/0x1b0 kernel/sched/core.c:6786 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6845 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x967/0x1340 kernel/locking/mutex.c:747 rtnl_lock net/core/rtnetlink.c:78 [inline] rtnetlink_rcv_msg+0x3e2/0xd30 net/core/rtnetlink.c:6425 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2549 netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline] netlink_unicast+0x539/0x800 net/netlink/af_netlink.c:1365 netlink_sendmsg+0x93c/0xe30 net/netlink/af_netlink.c:1914 sock_sendmsg_nosec net/socket.c:725 [inline] sock_sendmsg+0xd9/0x180 net/socket.c:748 __sys_sendto+0x255/0x340 net/socket.c:2134 __do_compat_sys_socketcall+0x5df/0x700 net/compat.c:475 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0x61/0xe0 arch/x86/entry/common.c:178 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203 entry_SYSENTER_compat_after_hwframe+0x70/0x82 RIP: 0023:0xf7fd9579 RSP: 002b:00000000f749f7c0 EFLAGS: 00000293 ORIG_RAX: 0000000000000066 RAX: ffffffffffffffda RBX: 000000000000000b RCX: 00000000f749f7d4 RDX: 0000000000000000 RSI: 00000000f7ea4568 RDI: 00000000f7353ff4 RBP: 00000000f7ea4568 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 INFO: task syz-executor.1:22780 blocked for more than 146 seconds. Not tainted 6.5.0-rc7-syzkaller-00022-ga5e505a99ca7 #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.1 state:D stack:24208 pid:22780 ppid:1 flags:0x20004006 Call Trace: context_switch kernel/sched/core.c:5381 [inline] __schedule+0xee1/0x59f0 kernel/sched/core.c:6710 schedule+0xe7/0x1b0 kernel/sched/core.c:6786 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6845 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x967/0x1340 kernel/locking/mutex.c:747 rtnl_lock net/core/rtnetlink.c:78 [inline] rtnetlink_rcv_msg+0x3e2/0xd30 net/core/rtnetlink.c:6425 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2549 netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline] netlink_unicast+0x539/0x800 net/netlink/af_netlink.c:1365 netlink_sendmsg+0x93c/0xe30 net/netlink/af_netlink.c:1914 sock_sendmsg_nosec net/socket.c:725 [inline] sock_sendmsg+0xd9/0x180 net/socket.c:748 __sys_sendto+0x255/0x340 net/socket.c:2134 __do_compat_sys_socketcall+0x5df/0x700 net/compat.c:475 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0x61/0xe0 arch/x86/entry/common.c:178 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203 entry_SYSENTER_compat_after_hwframe+0x70/0x82 RIP: 0023:0xf7fab579 RSP: 002b:00000000f749f7c0 EFLAGS: 00000293 ORIG_RAX: 0000000000000066 RAX: ffffffffffffffda RBX: 000000000000000b RCX: 00000000f749f7d4 RDX: 0000000000000000 RSI: 00000000f7ea4568 RDI: 00000000f7353ff4 RBP: 00000000f7ea4568 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Showing all locks held in the system: 4 locks held by kworker/0:0/7: 8 locks held by kworker/0:1/9: 1 lock held by rcu_tasks_kthre/13: #0: ffffffff8c9a67f0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x2c/0xe20 kernel/rcu/tasks.h:522 1 lock held by rcu_tasks_trace/14: #0: ffffffff8c9a64f0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x2c/0xe20 kernel/rcu/tasks.h:522 3 locks held by kworker/1:0/22: #0: ffff88814a599938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:20 [inline] #0: ffff88814a599938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: raw_atomic64_set include/linux/atomic/atomic-arch-fallback.h:2608 [inline] #0: ffff88814a599938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: raw_atomic_long_set include/linux/atomic/atomic-long.h:79 [inline] #0: ffff88814a599938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:3196 [inline] #0: ffff88814a599938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:678 [inline] #0: ffff88814a599938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:705 [inline] #0: ffff88814a599938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x96a/0x16f0 kernel/workqueue.c:2570 #1: ffffc900001c7d80 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x99e/0x16f0 kernel/workqueue.c:2574 #2: ffffffff8e3e1128 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xcf/0x1410 net/ipv6/addrconf.c:4093 1 lock held by khungtaskd/28: #0: ffffffff8c9a7400 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x340 kernel/locking/lockdep.c:6615 3 locks held by kworker/u4:2/41: 2 locks held by getty/4780: #0: ffff888028f09098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243 #1: ffffc900015a02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfcb/0x1480 drivers/tty/n_tty.c:2187 4 locks held by kworker/0:5/5113: 4 locks held by kworker/0:10/5142: 4 locks held by kworker/0:4/11821: 3 locks held by kworker/1:9/15046: #0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:20 [inline] #0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: raw_atomic64_set include/linux/atomic/atomic-arch-fallback.h:2608 [inline] #0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: raw_atomic_long_set include/linux/atomic/atomic-long.h:79 [inline] #0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:3196 [inline] #0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:678 [inline] #0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:705 [inline] #0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x96a/0x16f0 kernel/workqueue.c:2570 #1: ffffc9000328fd80 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x99e/0x16f0 kernel/workqueue.c:2574 #2: ffffffff8e3e1128 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0x51/0xc0 net/core/link_watch.c:277 4 locks held by kworker/0:3/19244: 4 locks held by kworker/0:6/19276: 3 locks held by kworker/1:2/19992: #0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:20 [inline] #0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: raw_atomic64_set include/linux/atomic/atomic-arch-fallback.h:2608 [inline] #0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: raw_atomic_long_set include/linux/atomic/atomic-long.h:79 [inline] #0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:3196 [inline] #0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:678 [inline] #0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:705 [inline] #0: ffff888012870d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x96a/0x16f0 kernel/workqueue.c:2570 #1: ffffc90005be7d80 (deferred_process_work){+.+.}-{0:0}, at: process_one_work+0x99e/0x16f0 kernel/workqueue.c:2574 #2: ffffffff8e3e1128 (rtnl_mutex){+.+.}-{3:3}, at: switchdev_deferred_process_work+0xe/0x20 net/switchdev/switchdev.c:75 7 locks held by kworker/0:12/20908: 2 locks held by kworker/0:14/20968: 3 locks held by kworker/0:16/21334: 3 locks held by kworker/0:18/21867: #0: ffff88814a599938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:20 [inline] #0: ffff88814a599938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: raw_atomic64_set include/linux/atomic/atomic-arch-fallback.h:2608 [inline] #0: ffff88814a599938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: raw_atomic_long_set include/linux/atomic/atomic-long.h:79 [inline] #0: ffff88814a599938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:3196 [inline] #0: ffff88814a599938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:678 [inline] #0: ffff88814a599938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:705 [inline] #0: ffff88814a599938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x96a/0x16f0 kernel/workqueue.c:2570 #1: ffffc90004effd80 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x99e/0x16f0 kernel/workqueue.c:2574 #2: ffffffff8e3e1128 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x12/0x30 net/ipv6/addrconf.c:4635 2 locks held by syz-executor.0/22715: #0: ffffffff8e3cc150 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x2d5/0x670 net/core/net_namespace.c:487 #1: ffffffff8e3e1128 (rtnl_mutex){+.+.}-{3:3}, at: ip_tunnel_init_net+0x225/0x5e0 net/ipv4/ip_tunnel.c:1090 1 lock held by syz-executor.3/22707: #0: ffffffff8e3e1128 (rtnl_mutex){+.+.}-{3:3}, at: tun_detach drivers/net/tun.c:697 [inline] #0: ffffffff8e3e1128 (rtnl_mutex){+.+.}-{3:3}, at: tun_chr_close+0x3e/0x240 drivers/net/tun.c:3491 1 lock held by syz-executor.1/22726: #0: ffffffff8e3e1128 (rtnl_mutex){+.+.}-{3:3}, at: tun_detach drivers/net/tun.c:697 [inline] #0: ffffffff8e3e1128 (rtnl_mutex){+.+.}-{3:3}, at: tun_chr_close+0x3e/0x240 drivers/net/tun.c:3491 4 locks held by syz-executor.0/22766: #0: ffffffff8e47b0f0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1077 #1: ffffffff8e47b1a8 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline] #1: ffffffff8e47b1a8 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x573/0x800 net/netlink/genetlink.c:1065 #2: ffffffff8e3e1128 (rtnl_mutex){+.+.}-{3:3}, at: wiphy_register+0x207c/0x2ce0 net/wireless/core.c:962 #3: ffff88802d858768 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: wiphy_lock include/net/cfg80211.h:5776 [inline] #3: ffff88802d858768 (&rdev->wiphy.mtx){+.+.}-{3:3}, at: reg_process_self_managed_hints+0x78/0x170 net/wireless/reg.c:3181 1 lock held by syz-executor.3/22769: #0: ffffffff8e3e1128 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8e3e1128 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e2/0xd30 net/core/rtnetlink.c:6425 1 lock held by syz-executor.1/22780: #0: ffffffff8e3e1128 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8e3e1128 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e2/0xd30 net/core/rtnetlink.c:6425 2 locks held by syz-executor.0/22802: #0: ffffffff8e3cc150 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x2d5/0x670 net/core/net_namespace.c:487 #1: ffffffff8e3e1128 (rtnl_mutex){+.+.}-{3:3}, at: smc_pnet_create_pnetids_list net/smc/smc_pnet.c:809 [inline] #1: ffffffff8e3e1128 (rtnl_mutex){+.+.}-{3:3}, at: smc_pnet_net_init+0x136/0x230 net/smc/smc_pnet.c:878 2 locks held by syz-executor.3/22807: #0: ffffffff8e3cc150 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x2d5/0x670 net/core/net_namespace.c:487 #1: ffffffff8e3e1128 (rtnl_mutex){+.+.}-{3:3}, at: smc_pnet_create_pnetids_list net/smc/smc_pnet.c:809 [inline] #1: ffffffff8e3e1128 (rtnl_mutex){+.+.}-{3:3}, at: smc_pnet_net_init+0x136/0x230 net/smc/smc_pnet.c:878 2 locks held by syz-executor.1/22809: #0: ffffffff8e3cc150 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x2d5/0x670 net/core/net_namespace.c:487 #1: ffffffff8e3e1128 (rtnl_mutex){+.+.}-{3:3}, at: smc_pnet_create_pnetids_list net/smc/smc_pnet.c:809 [inline] #1: ffffffff8e3e1128 (rtnl_mutex){+.+.}-{3:3}, at: smc_pnet_net_init+0x136/0x230 net/smc/smc_pnet.c:878 2 locks held by syz-executor.0/22819: #0: ffffffff8e3cc150 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x2d5/0x670 net/core/net_namespace.c:487 #1: ffffffff8e3e1128 (rtnl_mutex){+.+.}-{3:3}, at: smc_pnet_create_pnetids_list net/smc/smc_pnet.c:809 [inline] #1: ffffffff8e3e1128 (rtnl_mutex){+.+.}-{3:3}, at: smc_pnet_net_init+0x136/0x230 net/smc/smc_pnet.c:878 2 locks held by syz-executor.3/22823: #0: ffffffff8e3cc150 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x2d5/0x670 net/core/net_namespace.c:487 #1: ffffffff8e3e1128 (rtnl_mutex){+.+.}-{3:3}, at: smc_pnet_create_pnetids_list net/smc/smc_pnet.c:809 [inline] #1: ffffffff8e3e1128 (rtnl_mutex){+.+.}-{3:3}, at: smc_pnet_net_init+0x136/0x230 net/smc/smc_pnet.c:878 2 locks held by syz-executor.1/22825: #0: ffffffff8e3cc150 (pernet_ops_rwsem){++++}-{3:3}, at: copy_net_ns+0x2d5/0x670 net/core/net_namespace.c:487 #1: ffffffff8e3e1128 (rtnl_mutex){+.+.}-{3:3}, at: smc_pnet_create_pnetids_list net/smc/smc_pnet.c:809 [inline] #1: ffffffff8e3e1128 (rtnl_mutex){+.+.}-{3:3}, at: smc_pnet_net_init+0x136/0x230 net/smc/smc_pnet.c:878 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.5.0-rc7-syzkaller-00022-ga5e505a99ca7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106 nmi_cpu_backtrace+0x277/0x380 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x2ac/0x310 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+0xf29/0x11b0 kernel/hung_task.c:379 kthread+0x33a/0x430 kernel/kthread.c:389 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 5113 Comm: kworker/0:5 Not tainted 6.5.0-rc7-syzkaller-00022-ga5e505a99ca7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 Workqueue: events cfg80211_wiphy_work RIP: 0010:on_stack arch/x86/include/asm/stacktrace.h:56 [inline] RIP: 0010:unwind_next_frame+0xde7/0x2020 arch/x86/kernel/unwind_orc.c:665 Code: 00 0f 85 c9 0e 00 00 49 8d 7d 08 49 8b 5d 38 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 9c 0e 00 00 <49> 8d 7d 10 49 8b 6d 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 RSP: 0018:ffffc90000006e18 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: ffffc9000497fa00 RCX: ffffc90004980000 RDX: 1ffff92000000dd2 RSI: ffffc9000497f9f0 RDI: ffffc90000006e90 RBP: ffffc9000497fc30 R08: ffffc90000006ebc R09: ffffffff8fcd5aea R10: ffffc90000006e88 R11: 000000000008a7cc R12: ffffc90000006ed8 R13: ffffc90000006e88 R14: ffffc9000497fa00 R15: ffffc9000497f9f8 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000007b4b9000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: arch_stack_walk+0x8b/0xf0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x96/0xd0 kernel/stacktrace.c:122 kasan_save_stack+0x33/0x50 mm/kasan/common.c:45 kasan_set_track+0x25/0x30 mm/kasan/common.c:52 __kasan_slab_alloc+0x81/0x90 mm/kasan/common.c:328 kasan_slab_alloc include/linux/kasan.h:186 [inline] slab_post_alloc_hook mm/slab.h:762 [inline] slab_alloc_node mm/slub.c:3470 [inline] kmem_cache_alloc_node+0x185/0x3f0 mm/slub.c:3515 kmalloc_reserve+0x167/0x270 net/core/skbuff.c:559 __alloc_skb+0x12b/0x330 net/core/skbuff.c:644 alloc_skb include/linux/skbuff.h:1289 [inline] nlmsg_new include/net/netlink.h:1003 [inline] fdb_notify+0x9f/0x190 net/bridge/br_fdb.c:198 br_fdb_update+0x326/0x760 net/bridge/br_fdb.c:900 br_handle_frame_finish+0x731/0x1dd0 net/bridge/br_input.c:138 br_nf_hook_thresh+0x2ff/0x410 net/bridge/br_netfilter_hooks.c:1048 br_nf_pre_routing_finish_ipv6+0x683/0xf20 net/bridge/br_netfilter_ipv6.c:148 NF_HOOK include/linux/netfilter.h:303 [inline] br_nf_pre_routing_ipv6+0x41b/0x850 net/bridge/br_netfilter_ipv6.c:178 br_nf_pre_routing+0x8d8/0x1950 net/bridge/br_netfilter_hooks.c:508 nf_hook_entry_hookfn include/linux/netfilter.h:143 [inline] nf_hook_bridge_pre net/bridge/br_input.c:272 [inline] br_handle_frame+0x9da/0x16d0 net/bridge/br_input.c:417 __netif_receive_skb_core.constprop.0+0xa78/0x3df0 net/core/dev.c:5346 __netif_receive_skb_one_core+0xaf/0x180 net/core/dev.c:5450 __netif_receive_skb+0x1f/0x1b0 net/core/dev.c:5566 process_backlog+0x101/0x6c0 net/core/dev.c:5894 __napi_poll.constprop.0+0xb4/0x530 net/core/dev.c:6460 napi_poll net/core/dev.c:6527 [inline] net_rx_action+0x956/0xe90 net/core/dev.c:6660 __do_softirq+0x218/0x965 kernel/softirq.c:553 do_softirq kernel/softirq.c:454 [inline] do_softirq+0xaa/0xe0 kernel/softirq.c:441 __local_bh_enable_ip+0xf8/0x120 kernel/softirq.c:381 spin_unlock_bh include/linux/spinlock.h:396 [inline] cfg80211_put_bss+0x1b4/0x280 net/wireless/scan.c:2959 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:1196 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1613 [inline] ieee80211_ibss_rx_queued_mgmt+0x1ada/0x2ee0 net/mac80211/ibss.c:1642 ieee80211_iface_process_skb net/mac80211/iface.c:1604 [inline] ieee80211_iface_work+0xa1f/0xd40 net/mac80211/iface.c:1658 cfg80211_wiphy_work+0x24e/0x330 net/wireless/core.c:435 process_one_work+0xaa2/0x16f0 kernel/workqueue.c:2600 worker_thread+0x687/0x1110 kernel/workqueue.c:2751 kthread+0x33a/0x430 kernel/kthread.c:389 ret_from_fork+0x2c/0x70 arch/x86/kernel/process.c:145 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304