Warning: Permanently added '10.128.1.41' (ED25519) to the list of known hosts. executing program [ 51.654975][ T3487] [ 51.657319][ T3487] ===================================================== [ 51.664236][ T3487] WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected [ 51.671707][ T3487] 5.15.126-syzkaller #0 Not tainted [ 51.676892][ T3487] ----------------------------------------------------- [ 51.683827][ T3487] syz-executor289/3487 [HC0[0]:SC0[2]:HE1:SE0] is trying to acquire: [ 51.691914][ T3487] ffffffff8c9dfba0 (fs_reclaim){+.+.}-{0:0}, at: slab_pre_alloc_hook+0x22/0xc0 [ 51.700881][ T3487] [ 51.700881][ T3487] and this task is already holding: [ 51.708232][ T3487] ffffffff8da20808 (noop_qdisc.q.lock){+.-.}-{2:2}, at: netem_change+0x257/0x20c0 [ 51.717452][ T3487] which would create a new lock dependency: [ 51.723516][ T3487] (noop_qdisc.q.lock){+.-.}-{2:2} -> (fs_reclaim){+.+.}-{0:0} [ 51.731089][ T3487] [ 51.731089][ T3487] but this new dependency connects a SOFTIRQ-irq-safe lock: [ 51.740531][ T3487] (noop_qdisc.q.lock){+.-.}-{2:2} [ 51.740554][ T3487] [ 51.740554][ T3487] ... which became SOFTIRQ-irq-safe at: [ 51.753426][ T3487] lock_acquire+0x1db/0x4f0 [ 51.758013][ T3487] _raw_spin_lock+0x2a/0x40 [ 51.762591][ T3487] net_tx_action+0x6c5/0x8e0 [ 51.767269][ T3487] __do_softirq+0x3b3/0x93a [ 51.771858][ T3487] do_softirq+0x162/0x240 [ 51.776267][ T3487] __local_bh_enable_ip+0x1b1/0x1f0 [ 51.781543][ T3487] dev_deactivate_many+0x524/0xbf0 [ 51.786731][ T3487] dev_deactivate+0x177/0x270 [ 51.791492][ T3487] linkwatch_do_dev+0x104/0x160 [ 51.796418][ T3487] __linkwatch_run_queue+0x4ca/0x7f0 [ 51.801777][ T3487] linkwatch_event+0x48/0x50 [ 51.806444][ T3487] process_one_work+0x8a1/0x10c0 [ 51.811483][ T3487] worker_thread+0xaca/0x1280 [ 51.816243][ T3487] kthread+0x3f6/0x4f0 [ 51.820388][ T3487] ret_from_fork+0x1f/0x30 [ 51.824903][ T3487] [ 51.824903][ T3487] to a SOFTIRQ-irq-unsafe lock: [ 51.831904][ T3487] (fs_reclaim){+.+.}-{0:0} [ 51.831925][ T3487] [ 51.831925][ T3487] ... which became SOFTIRQ-irq-unsafe at: [ 51.844357][ T3487] ... [ 51.844363][ T3487] lock_acquire+0x1db/0x4f0 [ 51.851513][ T3487] fs_reclaim_acquire+0x83/0x120 [ 51.856530][ T3487] slab_pre_alloc_hook+0x22/0xc0 [ 51.861552][ T3487] kmem_cache_alloc_trace+0x49/0x290 [ 51.866999][ T3487] wq_numa_init+0x122/0x49f [ 51.871580][ T3487] workqueue_init+0x18/0x5e1 [ 51.876246][ T3487] kernel_init_freeable+0x40a/0x5c5 [ 51.881521][ T3487] kernel_init+0x19/0x290 [ 51.885925][ T3487] ret_from_fork+0x1f/0x30 [ 51.890421][ T3487] [ 51.890421][ T3487] other info that might help us debug this: [ 51.890421][ T3487] [ 51.900633][ T3487] Possible interrupt unsafe locking scenario: [ 51.900633][ T3487] [ 51.908934][ T3487] CPU0 CPU1 [ 51.914282][ T3487] ---- ---- [ 51.919633][ T3487] lock(fs_reclaim); [ 51.923601][ T3487] local_irq_disable(); [ 51.930337][ T3487] lock(noop_qdisc.q.lock); [ 51.937588][ T3487] lock(fs_reclaim); [ 51.944378][ T3487] [ 51.947844][ T3487] lock(noop_qdisc.q.lock); [ 51.952611][ T3487] [ 51.952611][ T3487] *** DEADLOCK *** [ 51.952611][ T3487] [ 51.960744][ T3487] 2 locks held by syz-executor289/3487: [ 51.966279][ T3487] #0: ffffffff8d9e1148 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x94c/0xee0 [ 51.975715][ T3487] #1: ffffffff8da20808 (noop_qdisc.q.lock){+.-.}-{2:2}, at: netem_change+0x257/0x20c0 [ 51.985386][ T3487] [ 51.985386][ T3487] the dependencies between SOFTIRQ-irq-safe lock and the holding lock: [ 51.995794][ T3487] -> (noop_qdisc.q.lock){+.-.}-{2:2} { [ 52.001256][ T3487] HARDIRQ-ON-W at: [ 52.005221][ T3487] lock_acquire+0x1db/0x4f0 [ 52.011368][ T3487] _raw_spin_lock+0x2a/0x40 [ 52.017510][ T3487] __dev_queue_xmit+0xad6/0x3230 [ 52.024088][ T3487] tx+0x64/0x100 [ 52.029272][ T3487] kthread+0x234/0x440 [ 52.034985][ T3487] kthread+0x3f6/0x4f0 [ 52.040695][ T3487] ret_from_fork+0x1f/0x30 [ 52.046751][ T3487] IN-SOFTIRQ-W at: [ 52.050719][ T3487] lock_acquire+0x1db/0x4f0 [ 52.056861][ T3487] _raw_spin_lock+0x2a/0x40 [ 52.063014][ T3487] net_tx_action+0x6c5/0x8e0 [ 52.069241][ T3487] __do_softirq+0x3b3/0x93a [ 52.075383][ T3487] do_softirq+0x162/0x240 [ 52.081362][ T3487] __local_bh_enable_ip+0x1b1/0x1f0 [ 52.088200][ T3487] dev_deactivate_many+0x524/0xbf0 [ 52.094952][ T3487] dev_deactivate+0x177/0x270 [ 52.101273][ T3487] linkwatch_do_dev+0x104/0x160 [ 52.107760][ T3487] __linkwatch_run_queue+0x4ca/0x7f0 [ 52.114683][ T3487] linkwatch_event+0x48/0x50 [ 52.120911][ T3487] process_one_work+0x8a1/0x10c0 [ 52.127486][ T3487] worker_thread+0xaca/0x1280 [ 52.133817][ T3487] kthread+0x3f6/0x4f0 [ 52.139546][ T3487] ret_from_fork+0x1f/0x30 [ 52.145621][ T3487] INITIAL USE at: [ 52.149521][ T3487] lock_acquire+0x1db/0x4f0 [ 52.155583][ T3487] _raw_spin_lock+0x2a/0x40 [ 52.161644][ T3487] __dev_queue_xmit+0xad6/0x3230 [ 52.168159][ T3487] tx+0x64/0x100 [ 52.173264][ T3487] kthread+0x234/0x440 [ 52.178902][ T3487] kthread+0x3f6/0x4f0 [ 52.184610][ T3487] ret_from_fork+0x1f/0x30 [ 52.190577][ T3487] } [ 52.193072][ T3487] ... key at: [] noop_qdisc+0x108/0x320 [ 52.200719][ T3487] [ 52.200719][ T3487] the dependencies between the lock to be acquired [ 52.200730][ T3487] and SOFTIRQ-irq-unsafe lock: [ 52.214386][ T3487] -> (fs_reclaim){+.+.}-{0:0} { [ 52.219262][ T3487] HARDIRQ-ON-W at: [ 52.223234][ T3487] lock_acquire+0x1db/0x4f0 [ 52.229389][ T3487] fs_reclaim_acquire+0x83/0x120 [ 52.236189][ T3487] slab_pre_alloc_hook+0x22/0xc0 [ 52.242784][ T3487] kmem_cache_alloc_trace+0x49/0x290 [ 52.249716][ T3487] wq_numa_init+0x122/0x49f [ 52.255863][ T3487] workqueue_init+0x18/0x5e1 [ 52.262095][ T3487] kernel_init_freeable+0x40a/0x5c5 [ 52.268935][ T3487] kernel_init+0x19/0x290 [ 52.274906][ T3487] ret_from_fork+0x1f/0x30 [ 52.280966][ T3487] SOFTIRQ-ON-W at: [ 52.284964][ T3487] lock_acquire+0x1db/0x4f0 [ 52.291116][ T3487] fs_reclaim_acquire+0x83/0x120 [ 52.297703][ T3487] slab_pre_alloc_hook+0x22/0xc0 [ 52.304284][ T3487] kmem_cache_alloc_trace+0x49/0x290 [ 52.311212][ T3487] wq_numa_init+0x122/0x49f [ 52.317358][ T3487] workqueue_init+0x18/0x5e1 [ 52.323609][ T3487] kernel_init_freeable+0x40a/0x5c5 [ 52.330447][ T3487] kernel_init+0x19/0x290 [ 52.336414][ T3487] ret_from_fork+0x1f/0x30 [ 52.342470][ T3487] INITIAL USE at: [ 52.346363][ T3487] lock_acquire+0x1db/0x4f0 [ 52.352442][ T3487] fs_reclaim_acquire+0x83/0x120 [ 52.358958][ T3487] slab_pre_alloc_hook+0x22/0xc0 [ 52.365457][ T3487] kmem_cache_alloc_trace+0x49/0x290 [ 52.372295][ T3487] wq_numa_init+0x122/0x49f [ 52.378377][ T3487] workqueue_init+0x18/0x5e1 [ 52.384525][ T3487] kernel_init_freeable+0x40a/0x5c5 [ 52.391291][ T3487] kernel_init+0x19/0x290 [ 52.397290][ T3487] ret_from_fork+0x1f/0x30 [ 52.403267][ T3487] } [ 52.405754][ T3487] ... key at: [] __fs_reclaim_map+0x0/0x160 [ 52.413723][ T3487] ... acquired at: [ 52.417510][ T3487] lock_acquire+0x1db/0x4f0 [ 52.422191][ T3487] fs_reclaim_acquire+0x83/0x120 [ 52.427301][ T3487] slab_pre_alloc_hook+0x22/0xc0 [ 52.432400][ T3487] __kmalloc_node+0x71/0x390 [ 52.437151][ T3487] kvmalloc_node+0x80/0x140 [ 52.441906][ T3487] get_dist_table+0x83/0x2c0 [ 52.446677][ T3487] netem_change+0xa05/0x20c0 [ 52.451430][ T3487] netem_init+0x58/0xb0 [ 52.455749][ T3487] qdisc_create+0x8ae/0x1390 [ 52.460624][ T3487] tc_modify_qdisc+0xac5/0x1710 [ 52.465641][ T3487] rtnetlink_rcv_msg+0x993/0xee0 [ 52.470742][ T3487] netlink_rcv_skb+0x1cf/0x410 [ 52.475672][ T3487] netlink_unicast+0x7b6/0x980 [ 52.480601][ T3487] netlink_sendmsg+0xa30/0xd60 [ 52.485529][ T3487] ____sys_sendmsg+0x59e/0x8f0 [ 52.490457][ T3487] ___sys_sendmsg+0x252/0x2e0 [ 52.495292][ T3487] __se_sys_sendmsg+0x19a/0x260 [ 52.500306][ T3487] do_syscall_64+0x3d/0xb0 [ 52.504884][ T3487] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 52.510943][ T3487] [ 52.513256][ T3487] [ 52.513256][ T3487] stack backtrace: [ 52.519140][ T3487] CPU: 0 PID: 3487 Comm: syz-executor289 Not tainted 5.15.126-syzkaller #0 [ 52.527768][ T3487] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 52.537816][ T3487] Call Trace: [ 52.541088][ T3487] [ 52.544008][ T3487] dump_stack_lvl+0x1e3/0x2cb [ 52.548678][ T3487] ? io_uring_drop_tctx_refs+0x19d/0x19d [ 52.554300][ T3487] ? panic+0x84d/0x84d [ 52.558362][ T3487] ? print_shortest_lock_dependencies+0xee/0x150 [ 52.564680][ T3487] validate_chain+0x4cfe/0x58b0 [ 52.569527][ T3487] ? reacquire_held_locks+0x660/0x660 [ 52.574889][ T3487] ? validate_chain+0x112/0x58b0 [ 52.579822][ T3487] ? reacquire_held_locks+0x660/0x660 [ 52.585184][ T3487] ? mark_lock+0x98/0x340 [ 52.589501][ T3487] __lock_acquire+0x1295/0x1ff0 [ 52.594349][ T3487] lock_acquire+0x1db/0x4f0 [ 52.598855][ T3487] ? slab_pre_alloc_hook+0x22/0xc0 [ 52.603959][ T3487] ? read_lock_is_recursive+0x10/0x10 [ 52.609338][ T3487] fs_reclaim_acquire+0x83/0x120 [ 52.614269][ T3487] ? slab_pre_alloc_hook+0x22/0xc0 [ 52.619370][ T3487] slab_pre_alloc_hook+0x22/0xc0 [ 52.624298][ T3487] __kmalloc_node+0x71/0x390 [ 52.628889][ T3487] ? kvmalloc_node+0x80/0x140 [ 52.633555][ T3487] ? __bpf_trace_softirq+0x10/0x10 [ 52.638660][ T3487] kvmalloc_node+0x80/0x140 [ 52.643158][ T3487] get_dist_table+0x83/0x2c0 [ 52.647739][ T3487] netem_change+0xa05/0x20c0 [ 52.652327][ T3487] ? netem_destroy+0xb0/0xb0 [ 52.656910][ T3487] ? debug_object_init+0x10/0x10 [ 52.661838][ T3487] ? memset+0x1f/0x40 [ 52.665810][ T3487] ? lockdep_init_map_type+0x9d/0x8d0 [ 52.671179][ T3487] ? memset+0x1f/0x40 [ 52.675155][ T3487] ? __hrtimer_init+0x181/0x260 [ 52.680004][ T3487] netem_init+0x58/0xb0 [ 52.684152][ T3487] ? qdisc_peek_dequeued+0x220/0x220 [ 52.689428][ T3487] qdisc_create+0x8ae/0x1390 [ 52.694012][ T3487] ? qdisc_notify+0x380/0x380 [ 52.698677][ T3487] ? apparmor_capable+0x12e/0x190 [ 52.703706][ T3487] tc_modify_qdisc+0xac5/0x1710 [ 52.708557][ T3487] ? rcu_lock_release+0x20/0x20 [ 52.713535][ T3487] ? rcu_lock_release+0x20/0x20 [ 52.718386][ T3487] rtnetlink_rcv_msg+0x993/0xee0 [ 52.723417][ T3487] ? reacquire_held_locks+0x660/0x660 [ 52.728901][ T3487] ? rtnetlink_bind+0x80/0x80 [ 52.733566][ T3487] ? is_bpf_text_address+0x24f/0x260 [ 52.738843][ T3487] ? stack_trace_save+0x1c0/0x1c0 [ 52.743855][ T3487] ? __kernel_text_address+0x94/0x100 [ 52.749218][ T3487] ? unwind_get_return_address+0x49/0x80 [ 52.754848][ T3487] ? arch_stack_walk+0xf3/0x140 [ 52.759693][ T3487] ? mark_lock+0x98/0x340 [ 52.764013][ T3487] ? mark_lock+0x98/0x340 [ 52.768334][ T3487] ? __lock_acquire+0x1295/0x1ff0 [ 52.773367][ T3487] netlink_rcv_skb+0x1cf/0x410 [ 52.778125][ T3487] ? rtnetlink_bind+0x80/0x80 [ 52.782792][ T3487] ? netlink_ack+0xb10/0xb10 [ 52.787374][ T3487] netlink_unicast+0x7b6/0x980 [ 52.792132][ T3487] ? netlink_detachskb+0x90/0x90 [ 52.797062][ T3487] ? 0xffffffff81000000 [ 52.801205][ T3487] ? __check_object_size+0x300/0x410 [ 52.806480][ T3487] ? bpf_lsm_netlink_send+0x5/0x10 [ 52.811589][ T3487] netlink_sendmsg+0xa30/0xd60 [ 52.816348][ T3487] ? netlink_getsockopt+0x5b0/0x5b0 [ 52.821543][ T3487] ? aa_sock_msg_perm+0x91/0x150 [ 52.826561][ T3487] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 52.831835][ T3487] ? security_socket_sendmsg+0x7d/0xa0 [ 52.837295][ T3487] ? netlink_getsockopt+0x5b0/0x5b0 [ 52.842485][ T3487] ____sys_sendmsg+0x59e/0x8f0 [ 52.847241][ T3487] ? iovec_from_user+0x300/0x390 [ 52.852172][ T3487] ? __sys_sendmsg_sock+0x30/0x30 [ 52.857193][ T3487] ___sys_sendmsg+0x252/0x2e0 [ 52.861891][ T3487] ? __sys_sendmsg+0x260/0x260 [ 52.866644][ T3487] ? __lock_acquire+0x1295/0x1ff0 [ 52.871671][ T3487] ? __context_tracking_enter+0x5f/0x90 [ 52.877210][ T3487] ? __context_tracking_exit+0x4c/0x80 [ 52.882660][ T3487] ? __fdget+0x158/0x220 [ 52.886896][ T3487] __se_sys_sendmsg+0x19a/0x260 [ 52.891738][ T3487] ? __x64_sys_sendmsg+0x80/0x80 [ 52.896675][ T3487] ? syscall_enter_from_user_mode+0x2e/0x230 [ 52.902649][ T3487] ? lockdep_hardirqs_on+0x94/0x130 [ 52.907840][ T3487] ? syscall_enter_from_user_mode+0x2e/0x230 [ 52.913816][ T3487] do_syscall_64+0x3d/0xb0 [ 52.918226][ T3487] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 52.924115][ T3487] RIP: 0033:0x7f0347337869 [ 52.928520][ T3487] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 52.948120][ T3487] RSP: 002b:00007ffe47f65d18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 52.956531][ T3487] RAX: ffffffffffffffda RBX: 00007ffe47f65ee8 RCX: 00007f0347337869 [ 52.964493][ T3487] RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000003 [ 52.972814][ T3487] RBP: 00007f03473aa610 R08: 0000000000000018 R09: 00007ffe47f65ee8 [ 52.980802][ T3487] R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000001 [ 52.988795][ T3487] R13: 00007ffe47f65ed8 R14: 0000000000000001 R15: 0000000000000001 [ 52.997013][ T3487] [ 53.000132][ T3487] BUG: sleeping function called from invalid context at include/linux/sched/mm.h:209 [ 53.009649][ T3487] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 3487, name: syz-executor289 [ 53.019532][ T3487] INFO: lockdep is turned off. [ 53.024319][ T3487] Preemption disabled at: [ 53.024328][ T3487] [<0000000000000000>] 0x0 [ 53.033053][ T3487] CPU: 0 PID: 3487 Comm: syz-executor289 Not tainted 5.15.126-syzkaller #0 [ 53.041761][ T3487] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 53.051818][ T3487] Call Trace: [ 53.055124][ T3487] [ 53.058051][ T3487] dump_stack_lvl+0x1e3/0x2cb [ 53.062724][ T3487] ? io_uring_drop_tctx_refs+0x19d/0x19d [ 53.068347][ T3487] ? panic+0x84d/0x84d [ 53.072406][ T3487] ? rcu_is_watching+0x11/0xa0 [ 53.077162][ T3487] ? rcu_is_watching+0x11/0xa0 [ 53.081916][ T3487] ___might_sleep+0x547/0x6a0 [ 53.086619][ T3487] ? __might_sleep+0xc0/0xc0 [ 53.091240][ T3487] slab_pre_alloc_hook+0x44/0xc0 [ 53.096257][ T3487] __kmalloc_node+0x71/0x390 [ 53.100839][ T3487] ? kvmalloc_node+0x80/0x140 [ 53.105506][ T3487] ? __bpf_trace_softirq+0x10/0x10 [ 53.110610][ T3487] kvmalloc_node+0x80/0x140 [ 53.115105][ T3487] get_dist_table+0x83/0x2c0 [ 53.119700][ T3487] netem_change+0xa05/0x20c0 [ 53.124313][ T3487] ? netem_destroy+0xb0/0xb0 [ 53.128895][ T3487] ? debug_object_init+0x10/0x10 [ 53.133849][ T3487] ? memset+0x1f/0x40 [ 53.137895][ T3487] ? lockdep_init_map_type+0x9d/0x8d0 [ 53.143463][ T3487] ? memset+0x1f/0x40 [ 53.147436][ T3487] ? __hrtimer_init+0x181/0x260 [ 53.152294][ T3487] netem_init+0x58/0xb0 [ 53.156451][ T3487] ? qdisc_peek_dequeued+0x220/0x220 [ 53.161746][ T3487] qdisc_create+0x8ae/0x1390 [ 53.166350][ T3487] ? qdisc_notify+0x380/0x380 [ 53.171019][ T3487] ? apparmor_capable+0x12e/0x190 [ 53.176046][ T3487] tc_modify_qdisc+0xac5/0x1710 [ 53.180904][ T3487] ? rcu_lock_release+0x20/0x20 [ 53.185764][ T3487] ? rcu_lock_release+0x20/0x20 [ 53.190606][ T3487] rtnetlink_rcv_msg+0x993/0xee0 [ 53.195536][ T3487] ? reacquire_held_locks+0x660/0x660 [ 53.200905][ T3487] ? rtnetlink_bind+0x80/0x80 [ 53.205592][ T3487] ? is_bpf_text_address+0x24f/0x260 [ 53.210886][ T3487] ? stack_trace_save+0x1c0/0x1c0 [ 53.215904][ T3487] ? __kernel_text_address+0x94/0x100 [ 53.221273][ T3487] ? unwind_get_return_address+0x49/0x80 [ 53.226900][ T3487] ? arch_stack_walk+0xf3/0x140 [ 53.237238][ T3487] ? mark_lock+0x98/0x340 [ 53.241647][ T3487] ? mark_lock+0x98/0x340 [ 53.245966][ T3487] ? __lock_acquire+0x1295/0x1ff0 [ 53.251029][ T3487] netlink_rcv_skb+0x1cf/0x410 [ 53.255789][ T3487] ? rtnetlink_bind+0x80/0x80 [ 53.260456][ T3487] ? netlink_ack+0xb10/0xb10 [ 53.265055][ T3487] netlink_unicast+0x7b6/0x980 [ 53.269814][ T3487] ? netlink_detachskb+0x90/0x90 [ 53.274745][ T3487] ? 0xffffffff81000000 [ 53.278891][ T3487] ? __check_object_size+0x300/0x410 [ 53.284172][ T3487] ? bpf_lsm_netlink_send+0x5/0x10 [ 53.289280][ T3487] netlink_sendmsg+0xa30/0xd60 [ 53.294044][ T3487] ? netlink_getsockopt+0x5b0/0x5b0 [ 53.299237][ T3487] ? aa_sock_msg_perm+0x91/0x150 [ 53.304167][ T3487] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 53.309547][ T3487] ? security_socket_sendmsg+0x7d/0xa0 [ 53.314998][ T3487] ? netlink_getsockopt+0x5b0/0x5b0 [ 53.320199][ T3487] ____sys_sendmsg+0x59e/0x8f0 [ 53.324960][ T3487] ? iovec_from_user+0x300/0x390 [ 53.329889][ T3487] ? __sys_sendmsg_sock+0x30/0x30 [ 53.334912][ T3487] ___sys_sendmsg+0x252/0x2e0 [ 53.339586][ T3487] ? __sys_sendmsg+0x260/0x260 [ 53.344339][ T3487] ? __lock_acquire+0x1295/0x1ff0 [ 53.349367][ T3487] ? __context_tracking_enter+0x5f/0x90 [ 53.354927][ T3487] ? __context_tracking_exit+0x4c/0x80 [ 53.360376][ T3487] ? __fdget+0x158/0x220 [ 53.364608][ T3487] __se_sys_sendmsg+0x19a/0x260 [ 53.369469][ T3487] ? __x64_sys_sendmsg+0x80/0x80 [ 53.374428][ T3487] ? syscall_enter_from_user_mode+0x2e/0x230 [ 53.380542][ T3487] ? lockdep_hardirqs_on+0x94/0x130 [ 53.385762][ T3487] ? syscall_enter_from_user_mode+0x2e/0x230 [ 53.391746][ T3487] do_syscall_64+0x3d/0xb0 [ 53.396164][ T3487] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 53.402074][ T3487] RIP: 0033:0x7f0347337869 [ 53.406482][ T3487] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 53.426118][ T3487] RSP: 002b:00007ffe47f65d18 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 53.434531][ T3487] RAX: ffffffffffffffda RBX: 00007ffe47f65ee8 RCX: 00007f0347337869 [ 53.442508][ T3487] RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000003 [ 53.450484][ T3487] RBP: 00007f03473aa610 R08: 0000000000000018 R09: 00007ffe47f65ee8 [ 53.458452][ T3487] R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000001 [ 53.466424][ T3487] R13: 00007ffe47f65ed8 R14: 0000000000000001 R15: 0000000000000001 [ 53.474402][ T3487]