INFO: task kworker/u4:0:8 blocked for more than 143 seconds. Not tainted 5.15.0-rc6-next-20211020-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u4:0 state:D stack:26408 pid: 8 ppid: 2 flags:0x00004000 Workqueue: netns cleanup_net Call Trace: context_switch kernel/sched/core.c:4965 [inline] __schedule+0xa9a/0x4940 kernel/sched/core.c:6246 schedule+0xd2/0x260 kernel/sched/core.c:6319 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6378 __mutex_lock_common kernel/locking/mutex.c:672 [inline] __mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:732 wg_netns_pre_exit+0x15/0x190 drivers/net/wireguard/device.c:402 ops_pre_exit_list net/core/net_namespace.c:158 [inline] cleanup_net+0x451/0xb00 net/core/net_namespace.c:581 process_one_work+0x9b2/0x1690 kernel/workqueue.c:2297 worker_thread+0x658/0x11f0 kernel/workqueue.c:2444 kthread+0x405/0x4f0 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 INFO: task syz-executor.1:9004 can't die for more than 143 seconds. task:syz-executor.1 state:D stack:26120 pid: 9004 ppid: 6562 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:4965 [inline] __schedule+0xa9a/0x4940 kernel/sched/core.c:6246 schedule+0xd2/0x260 kernel/sched/core.c:6319 schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1881 dev_deactivate_many+0x710/0xc60 net/sched/sch_generic.c:1302 dev_deactivate+0xe9/0x1b0 net/sched/sch_generic.c:1312 qdisc_graft+0xdac/0x1260 net/sched/sch_api.c:1061 tc_modify_qdisc+0xb92/0x1980 net/sched/sch_api.c:1671 rtnetlink_rcv_msg+0x413/0xb80 net/core/rtnetlink.c:5572 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2491 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x86d/0xda0 net/netlink/af_netlink.c:1916 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:724 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2409 ___sys_sendmsg+0xf3/0x170 net/socket.c:2463 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2492 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fba4f1e6a39 RSP: 002b:00007fba4c73b188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fba4f2ea020 RCX: 00007fba4f1e6a39 RDX: 0000000000000000 RSI: 0000000020000800 RDI: 0000000000000004 RBP: 00007fba4f240c5f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdb3706bff R14: 00007fba4c73b300 R15: 0000000000022000 INFO: task syz-executor.2:9040 can't die for more than 143 seconds. task:syz-executor.2 state:D stack:26728 pid: 9040 ppid: 6564 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:4965 [inline] __schedule+0xa9a/0x4940 kernel/sched/core.c:6246 schedule+0xd2/0x260 kernel/sched/core.c:6319 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6378 __mutex_lock_common kernel/locking/mutex.c:672 [inline] __mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:732 rtnl_lock net/core/rtnetlink.c:72 [inline] rtnetlink_rcv_msg+0x3be/0xb80 net/core/rtnetlink.c:5569 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2491 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x86d/0xda0 net/netlink/af_netlink.c:1916 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:724 ____sys_sendmsg+0x331/0x810 net/socket.c:2409 ___sys_sendmsg+0xf3/0x170 net/socket.c:2463 __sys_sendmmsg+0x195/0x470 net/socket.c:2549 __do_sys_sendmmsg net/socket.c:2578 [inline] __se_sys_sendmmsg net/socket.c:2575 [inline] __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2575 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7ff2918e0a39 RSP: 002b:00007ff28ee56188 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007ff2919e3f60 RCX: 00007ff2918e0a39 RDX: 0492492492492642 RSI: 0000000020000180 RDI: 0000000000000007 RBP: 00007ff29193ac5f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd6e53e4bf R14: 00007ff28ee56300 R15: 0000000000022000 INFO: task syz-executor.2:9040 blocked for more than 144 seconds. Not tainted 5.15.0-rc6-next-20211020-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:26728 pid: 9040 ppid: 6564 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:4965 [inline] __schedule+0xa9a/0x4940 kernel/sched/core.c:6246 schedule+0xd2/0x260 kernel/sched/core.c:6319 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6378 __mutex_lock_common kernel/locking/mutex.c:672 [inline] __mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:732 rtnl_lock net/core/rtnetlink.c:72 [inline] rtnetlink_rcv_msg+0x3be/0xb80 net/core/rtnetlink.c:5569 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2491 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x86d/0xda0 net/netlink/af_netlink.c:1916 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:724 ____sys_sendmsg+0x331/0x810 net/socket.c:2409 ___sys_sendmsg+0xf3/0x170 net/socket.c:2463 __sys_sendmmsg+0x195/0x470 net/socket.c:2549 __do_sys_sendmmsg net/socket.c:2578 [inline] __se_sys_sendmmsg net/socket.c:2575 [inline] __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2575 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7ff2918e0a39 RSP: 002b:00007ff28ee56188 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007ff2919e3f60 RCX: 00007ff2918e0a39 RDX: 0492492492492642 RSI: 0000000020000180 RDI: 0000000000000007 RBP: 00007ff29193ac5f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd6e53e4bf R14: 00007ff28ee56300 R15: 0000000000022000 INFO: task syz-executor.5:9041 can't die for more than 144 seconds. task:syz-executor.5 state:D stack:28216 pid: 9041 ppid: 6937 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:4965 [inline] __schedule+0xa9a/0x4940 kernel/sched/core.c:6246 schedule+0xd2/0x260 kernel/sched/core.c:6319 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6378 __mutex_lock_common kernel/locking/mutex.c:672 [inline] __mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:732 ipv6_route_ioctl+0x3c7/0x570 net/ipv6/route.c:4469 inet6_ioctl+0x242/0x280 net/ipv6/af_inet6.c:566 sock_do_ioctl+0xcc/0x230 net/socket.c:1118 sock_ioctl+0x2f1/0x640 net/socket.c:1235 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fbf6cc96a39 RSP: 002b:00007fbf6a20c188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fbf6cd99f60 RCX: 00007fbf6cc96a39 RDX: 0000000020000140 RSI: 000000000000890b RDI: 0000000000000005 RBP: 00007fbf6ccf0c5f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdc88d6baf R14: 00007fbf6a20c300 R15: 0000000000022000 INFO: task syz-executor.5:9041 blocked for more than 144 seconds. Not tainted 5.15.0-rc6-next-20211020-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:28216 pid: 9041 ppid: 6937 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:4965 [inline] __schedule+0xa9a/0x4940 kernel/sched/core.c:6246 schedule+0xd2/0x260 kernel/sched/core.c:6319 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6378 __mutex_lock_common kernel/locking/mutex.c:672 [inline] __mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:732 ipv6_route_ioctl+0x3c7/0x570 net/ipv6/route.c:4469 inet6_ioctl+0x242/0x280 net/ipv6/af_inet6.c:566 sock_do_ioctl+0xcc/0x230 net/socket.c:1118 sock_ioctl+0x2f1/0x640 net/socket.c:1235 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fbf6cc96a39 RSP: 002b:00007fbf6a20c188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fbf6cd99f60 RCX: 00007fbf6cc96a39 RDX: 0000000020000140 RSI: 000000000000890b RDI: 0000000000000005 RBP: 00007fbf6ccf0c5f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdc88d6baf R14: 00007fbf6a20c300 R15: 0000000000022000 INFO: task syz-executor.5:9057 can't die for more than 145 seconds. task:syz-executor.5 state:D stack:28688 pid: 9057 ppid: 6937 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:4965 [inline] __schedule+0xa9a/0x4940 kernel/sched/core.c:6246 schedule+0xd2/0x260 kernel/sched/core.c:6319 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6378 __mutex_lock_common kernel/locking/mutex.c:672 [inline] __mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:732 ipv6_route_ioctl+0x3c7/0x570 net/ipv6/route.c:4469 inet6_ioctl+0x242/0x280 net/ipv6/af_inet6.c:566 sock_do_ioctl+0xcc/0x230 net/socket.c:1118 sock_ioctl+0x2f1/0x640 net/socket.c:1235 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fbf6cc96a39 RSP: 002b:00007fbf6a1ca188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fbf6cd9a0e0 RCX: 00007fbf6cc96a39 RDX: 0000000020000140 RSI: 000000000000890b RDI: 0000000000000005 RBP: 00007fbf6ccf0c5f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdc88d6baf R14: 00007fbf6a1ca300 R15: 0000000000022000 INFO: task syz-executor.5:9057 blocked for more than 145 seconds. Not tainted 5.15.0-rc6-next-20211020-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.5 state:D stack:28688 pid: 9057 ppid: 6937 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:4965 [inline] __schedule+0xa9a/0x4940 kernel/sched/core.c:6246 schedule+0xd2/0x260 kernel/sched/core.c:6319 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6378 __mutex_lock_common kernel/locking/mutex.c:672 [inline] __mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:732 ipv6_route_ioctl+0x3c7/0x570 net/ipv6/route.c:4469 inet6_ioctl+0x242/0x280 net/ipv6/af_inet6.c:566 sock_do_ioctl+0xcc/0x230 net/socket.c:1118 sock_ioctl+0x2f1/0x640 net/socket.c:1235 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fbf6cc96a39 RSP: 002b:00007fbf6a1ca188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fbf6cd9a0e0 RCX: 00007fbf6cc96a39 RDX: 0000000020000140 RSI: 000000000000890b RDI: 0000000000000005 RBP: 00007fbf6ccf0c5f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffdc88d6baf R14: 00007fbf6a1ca300 R15: 0000000000022000 Showing all locks held in the system: 4 locks held by kworker/u4:0/8: #0: ffff888011a73138 ((wq_completion)netns){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888011a73138 ((wq_completion)netns){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888011a73138 ((wq_completion)netns){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline] #0: ffff888011a73138 ((wq_completion)netns){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:634 [inline] #0: ffff888011a73138 ((wq_completion)netns){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:661 [inline] #0: ffff888011a73138 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x896/0x1690 kernel/workqueue.c:2268 #1: ffffc90000cd7db0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x8ca/0x1690 kernel/workqueue.c:2272 #2: ffffffff8d2e9390 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x9b/0xb00 net/core/net_namespace.c:555 #3: ffffffff8d2fcb68 (rtnl_mutex){+.+.}-{3:3}, at: wg_netns_pre_exit+0x15/0x190 drivers/net/wireguard/device.c:402 1 lock held by khungtaskd/27: #0: ffffffff8bb835a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6458 3 locks held by kworker/1:5/8257: #0: ffff88814a757538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff88814a757538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff88814a757538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline] #0: ffff88814a757538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:634 [inline] #0: ffff88814a757538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:661 [inline] #0: ffff88814a757538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x896/0x1690 kernel/workqueue.c:2268 #1: ffffc9000c967db0 ((addr_chk_work).work){+.+.}-{0:0}, at: process_one_work+0x8ca/0x1690 kernel/workqueue.c:2272 #2: ffffffff8d2fcb68 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0xa/0x20 net/ipv6/addrconf.c:4590 3 locks held by kworker/1:9/8548: #0: ffff888010c65d38 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888010c65d38 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline] #0: ffff888010c65d38 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline] #0: ffff888010c65d38 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:634 [inline] #0: ffff888010c65d38 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:661 [inline] #0: ffff888010c65d38 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x896/0x1690 kernel/workqueue.c:2268 #1: ffffc9000285fdb0 ((reg_check_chans).work){+.+.}-{0:0}, at: process_one_work+0x8ca/0x1690 kernel/workqueue.c:2272 #2: ffffffff8d2fcb68 (rtnl_mutex){+.+.}-{3:3}, at: reg_check_chans_work+0x83/0xe10 net/wireless/reg.c:2423 1 lock held by syz-executor.1/9004: #0: ffffffff8d2fcb68 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffffffff8d2fcb68 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 net/core/rtnetlink.c:5569 1 lock held by syz-executor.2/9040: #0: ffffffff8d2fcb68 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline] #0: ffffffff8d2fcb68 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 net/core/rtnetlink.c:5569 1 lock held by syz-executor.5/9041: #0: ffffffff8d2fcb68 (rtnl_mutex){+.+.}-{3:3}, at: ipv6_route_ioctl+0x3c7/0x570 net/ipv6/route.c:4469 1 lock held by syz-executor.5/9057: #0: ffffffff8d2fcb68 (rtnl_mutex){+.+.}-{3:3}, at: ipv6_route_ioctl+0x3c7/0x570 net/ipv6/route.c:4469 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.0-rc6-next-20211020-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106 nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:105 nmi_trigger_cpumask_backtrace+0x1ae/0x220 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:254 [inline] watchdog+0xcb7/0xed0 kernel/hung_task.c:339 kthread+0x405/0x4f0 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 1056 Comm: kworker/u4:5 Not tainted 5.15.0-rc6-next-20211020-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: events_unbound toggle_allocation_gate RIP: 0010:mark_lock+0x12a/0x17b0 kernel/locking/lockdep.c:4583 Code: 76 48 c1 e0 06 48 05 20 6e f4 8f 48 8d 78 50 48 ba 00 00 00 00 00 fc ff df 48 89 f9 48 c1 e9 03 80 3c 11 00 0f 85 15 12 00 00 <48> 89 ee 48 23 70 50 41 ba 01 00 00 00 0f 84 79 01 00 00 48 b8 00 RSP: 0018:ffffc900049df750 EFLAGS: 00000046 RAX: ffffffff8ff47420 RBX: 1ffff9200093bef1 RCX: 1ffffffff1fe8e8e RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffffffff8ff47470 RBP: 0000000000000040 R08: 0000000000000000 R09: ffffffff8ff46a07 R10: fffffbfff1fe8d40 R11: 0000000000000000 R12: 0000000000000006 R13: ffff88801bcc27e0 R14: 0000000000000008 R15: ffff88801bcc2800 FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc2fe0e3000 CR3: 000000000b88e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: mark_usage kernel/locking/lockdep.c:4518 [inline] __lock_acquire+0x88f/0x54a0 kernel/locking/lockdep.c:4981 lock_acquire kernel/locking/lockdep.c:5637 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5602 __mutex_lock_common kernel/locking/mutex.c:599 [inline] __mutex_lock+0x12f/0x12f0 kernel/locking/mutex.c:732 jump_label_lock kernel/jump_label.c:27 [inline] static_key_disable_cpuslocked+0x108/0x1b0 kernel/jump_label.c:205 static_key_disable+0x16/0x20 kernel/jump_label.c:215 toggle_allocation_gate mm/kfence/core.c:745 [inline] toggle_allocation_gate+0x183/0x390 mm/kfence/core.c:723 process_one_work+0x9b2/0x1690 kernel/workqueue.c:2297 worker_thread+0x658/0x11f0 kernel/workqueue.c:2444 kthread+0x405/0x4f0 kernel/kthread.c:327 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 ---------------- Code disassembly (best guess): 0: 76 48 jbe 0x4a 2: c1 e0 06 shl $0x6,%eax 5: 48 05 20 6e f4 8f add $0xffffffff8ff46e20,%rax b: 48 8d 78 50 lea 0x50(%rax),%rdi f: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx 16: fc ff df 19: 48 89 f9 mov %rdi,%rcx 1c: 48 c1 e9 03 shr $0x3,%rcx 20: 80 3c 11 00 cmpb $0x0,(%rcx,%rdx,1) 24: 0f 85 15 12 00 00 jne 0x123f * 2a: 48 89 ee mov %rbp,%rsi <-- trapping instruction 2d: 48 23 70 50 and 0x50(%rax),%rsi 31: 41 ba 01 00 00 00 mov $0x1,%r10d 37: 0f 84 79 01 00 00 je 0x1b6 3d: 48 rex.W 3e: b8 .byte 0xb8