Warning: Permanently added '10.128.0.218' (ED25519) to the list of known hosts. executing program [ 46.541348][ T3486] [ 46.543695][ T3486] ===================================================== [ 46.550612][ T3486] WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected [ 46.558056][ T3486] 5.15.126-syzkaller #0 Not tainted [ 46.563232][ T3486] ----------------------------------------------------- [ 46.570149][ T3486] syz-executor727/3486 [HC0[0]:SC0[2]:HE1:SE0] is trying to acquire: [ 46.578206][ T3486] ffffffff8c9dfba0 (fs_reclaim){+.+.}-{0:0}, at: slab_pre_alloc_hook+0x22/0xc0 [ 46.588369][ T3486] [ 46.588369][ T3486] and this task is already holding: [ 46.595716][ T3486] ffffffff8da20808 (noop_qdisc.q.lock){+.-.}-{2:2}, at: netem_change+0x257/0x20c0 [ 46.604918][ T3486] which would create a new lock dependency: [ 46.610785][ T3486] (noop_qdisc.q.lock){+.-.}-{2:2} -> (fs_reclaim){+.+.}-{0:0} [ 46.618327][ T3486] [ 46.618327][ T3486] but this new dependency connects a SOFTIRQ-irq-safe lock: [ 46.627756][ T3486] (noop_qdisc.q.lock){+.-.}-{2:2} [ 46.627773][ T3486] [ 46.627773][ T3486] ... which became SOFTIRQ-irq-safe at: [ 46.640631][ T3486] lock_acquire+0x1db/0x4f0 [ 46.645408][ T3486] _raw_spin_lock+0x2a/0x40 [ 46.649994][ T3486] net_tx_action+0x6c5/0x8e0 [ 46.654657][ T3486] __do_softirq+0x3b3/0x93a [ 46.659321][ T3486] do_softirq+0x162/0x240 [ 46.663718][ T3486] __local_bh_enable_ip+0x1b1/0x1f0 [ 46.668983][ T3486] dev_deactivate_many+0x524/0xbf0 [ 46.674164][ T3486] dev_deactivate+0x177/0x270 [ 46.678909][ T3486] linkwatch_do_dev+0x104/0x160 [ 46.683831][ T3486] __linkwatch_run_queue+0x4ca/0x7f0 [ 46.689189][ T3486] linkwatch_event+0x48/0x50 [ 46.693851][ T3486] process_one_work+0x8a1/0x10c0 [ 46.698947][ T3486] worker_thread+0xaca/0x1280 [ 46.703694][ T3486] kthread+0x3f6/0x4f0 [ 46.707828][ T3486] ret_from_fork+0x1f/0x30 [ 46.712315][ T3486] [ 46.712315][ T3486] to a SOFTIRQ-irq-unsafe lock: [ 46.719311][ T3486] (fs_reclaim){+.+.}-{0:0} [ 46.719330][ T3486] [ 46.719330][ T3486] ... which became SOFTIRQ-irq-unsafe at: [ 46.731677][ T3486] ... [ 46.731685][ T3486] lock_acquire+0x1db/0x4f0 [ 46.738826][ T3486] fs_reclaim_acquire+0x83/0x120 [ 46.743932][ T3486] slab_pre_alloc_hook+0x22/0xc0 [ 46.748973][ T3486] kmem_cache_alloc_trace+0x49/0x290 [ 46.754340][ T3486] wq_numa_init+0x122/0x49f [ 46.758925][ T3486] workqueue_init+0x18/0x5e1 [ 46.763696][ T3486] kernel_init_freeable+0x40a/0x5c5 [ 46.769062][ T3486] kernel_init+0x19/0x290 [ 46.773464][ T3486] ret_from_fork+0x1f/0x30 [ 46.777976][ T3486] [ 46.777976][ T3486] other info that might help us debug this: [ 46.777976][ T3486] [ 46.788269][ T3486] Possible interrupt unsafe locking scenario: [ 46.788269][ T3486] [ 46.796655][ T3486] CPU0 CPU1 [ 46.801999][ T3486] ---- ---- [ 46.807384][ T3486] lock(fs_reclaim); [ 46.811351][ T3486] local_irq_disable(); [ 46.818082][ T3486] lock(noop_qdisc.q.lock); [ 46.825186][ T3486] lock(fs_reclaim); [ 46.831667][ T3486] [ 46.835097][ T3486] lock(noop_qdisc.q.lock); [ 46.839834][ T3486] [ 46.839834][ T3486] *** DEADLOCK *** [ 46.839834][ T3486] [ 46.848045][ T3486] 2 locks held by syz-executor727/3486: [ 46.853571][ T3486] #0: ffffffff8d9e1148 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x94c/0xee0 [ 46.863054][ T3486] #1: ffffffff8da20808 (noop_qdisc.q.lock){+.-.}-{2:2}, at: netem_change+0x257/0x20c0 [ 46.872741][ T3486] [ 46.872741][ T3486] the dependencies between SOFTIRQ-irq-safe lock and the holding lock: [ 46.883129][ T3486] -> (noop_qdisc.q.lock){+.-.}-{2:2} { [ 46.888712][ T3486] HARDIRQ-ON-W at: [ 46.892680][ T3486] lock_acquire+0x1db/0x4f0 [ 46.898915][ T3486] _raw_spin_lock+0x2a/0x40 [ 46.905046][ T3486] __dev_queue_xmit+0xad6/0x3230 [ 46.911620][ T3486] tx+0x64/0x100 [ 46.916882][ T3486] kthread+0x234/0x440 [ 46.922593][ T3486] kthread+0x3f6/0x4f0 [ 46.928299][ T3486] ret_from_fork+0x1f/0x30 [ 46.934368][ T3486] IN-SOFTIRQ-W at: [ 46.938326][ T3486] lock_acquire+0x1db/0x4f0 [ 46.944460][ T3486] _raw_spin_lock+0x2a/0x40 [ 46.950595][ T3486] net_tx_action+0x6c5/0x8e0 [ 46.956914][ T3486] __do_softirq+0x3b3/0x93a [ 46.963049][ T3486] do_softirq+0x162/0x240 [ 46.969014][ T3486] __local_bh_enable_ip+0x1b1/0x1f0 [ 46.975850][ T3486] dev_deactivate_many+0x524/0xbf0 [ 46.982631][ T3486] dev_deactivate+0x177/0x270 [ 46.988941][ T3486] linkwatch_do_dev+0x104/0x160 [ 46.995420][ T3486] __linkwatch_run_queue+0x4ca/0x7f0 [ 47.002329][ T3486] linkwatch_event+0x48/0x50 [ 47.008546][ T3486] process_one_work+0x8a1/0x10c0 [ 47.015120][ T3486] worker_thread+0xaca/0x1280 [ 47.021437][ T3486] kthread+0x3f6/0x4f0 [ 47.027148][ T3486] ret_from_fork+0x1f/0x30 [ 47.033206][ T3486] INITIAL USE at: [ 47.037082][ T3486] lock_acquire+0x1db/0x4f0 [ 47.043126][ T3486] _raw_spin_lock+0x2a/0x40 [ 47.049173][ T3486] __dev_queue_xmit+0xad6/0x3230 [ 47.055656][ T3486] tx+0x64/0x100 [ 47.060751][ T3486] kthread+0x234/0x440 [ 47.066361][ T3486] kthread+0x3f6/0x4f0 [ 47.071970][ T3486] ret_from_fork+0x1f/0x30 [ 47.077928][ T3486] } [ 47.080422][ T3486] ... key at: [] noop_qdisc+0x108/0x320 [ 47.088046][ T3486] [ 47.088046][ T3486] the dependencies between the lock to be acquired [ 47.088051][ T3486] and SOFTIRQ-irq-unsafe lock: [ 47.101566][ T3486] -> (fs_reclaim){+.+.}-{0:0} { [ 47.106526][ T3486] HARDIRQ-ON-W at: [ 47.110480][ T3486] lock_acquire+0x1db/0x4f0 [ 47.116618][ T3486] fs_reclaim_acquire+0x83/0x120 [ 47.123182][ T3486] slab_pre_alloc_hook+0x22/0xc0 [ 47.129750][ T3486] kmem_cache_alloc_trace+0x49/0x290 [ 47.136663][ T3486] wq_numa_init+0x122/0x49f [ 47.142925][ T3486] workqueue_init+0x18/0x5e1 [ 47.149149][ T3486] kernel_init_freeable+0x40a/0x5c5 [ 47.155976][ T3486] kernel_init+0x19/0x290 [ 47.162028][ T3486] ret_from_fork+0x1f/0x30 [ 47.168079][ T3486] SOFTIRQ-ON-W at: [ 47.172037][ T3486] lock_acquire+0x1db/0x4f0 [ 47.178255][ T3486] fs_reclaim_acquire+0x83/0x120 [ 47.184824][ T3486] slab_pre_alloc_hook+0x22/0xc0 [ 47.191388][ T3486] kmem_cache_alloc_trace+0x49/0x290 [ 47.198303][ T3486] wq_numa_init+0x122/0x49f [ 47.204438][ T3486] workqueue_init+0x18/0x5e1 [ 47.210661][ T3486] kernel_init_freeable+0x40a/0x5c5 [ 47.217485][ T3486] kernel_init+0x19/0x290 [ 47.223441][ T3486] ret_from_fork+0x1f/0x30 [ 47.229488][ T3486] INITIAL USE at: [ 47.233363][ T3486] lock_acquire+0x1db/0x4f0 [ 47.239408][ T3486] fs_reclaim_acquire+0x83/0x120 [ 47.245889][ T3486] slab_pre_alloc_hook+0x22/0xc0 [ 47.252364][ T3486] kmem_cache_alloc_trace+0x49/0x290 [ 47.259191][ T3486] wq_numa_init+0x122/0x49f [ 47.265239][ T3486] workqueue_init+0x18/0x5e1 [ 47.271367][ T3486] kernel_init_freeable+0x40a/0x5c5 [ 47.278105][ T3486] kernel_init+0x19/0x290 [ 47.283976][ T3486] ret_from_fork+0x1f/0x30 [ 47.289935][ T3486] } [ 47.292410][ T3486] ... key at: [] __fs_reclaim_map+0x0/0x160 [ 47.300366][ T3486] ... acquired at: [ 47.304204][ T3486] lock_acquire+0x1db/0x4f0 [ 47.308860][ T3486] fs_reclaim_acquire+0x83/0x120 [ 47.313949][ T3486] slab_pre_alloc_hook+0x22/0xc0 [ 47.319037][ T3486] __kmalloc_node+0x71/0x390 [ 47.323774][ T3486] kvmalloc_node+0x80/0x140 [ 47.328430][ T3486] get_dist_table+0x83/0x2c0 [ 47.333170][ T3486] netem_change+0xa05/0x20c0 [ 47.337920][ T3486] netem_init+0x58/0xb0 [ 47.342260][ T3486] qdisc_create+0x8ae/0x1390 [ 47.347000][ T3486] tc_modify_qdisc+0xac5/0x1710 [ 47.352002][ T3486] rtnetlink_rcv_msg+0x993/0xee0 [ 47.357088][ T3486] netlink_rcv_skb+0x1cf/0x410 [ 47.362007][ T3486] netlink_unicast+0x7b6/0x980 [ 47.366930][ T3486] netlink_sendmsg+0xa30/0xd60 [ 47.371845][ T3486] ____sys_sendmsg+0x59e/0x8f0 [ 47.376757][ T3486] ___sys_sendmsg+0x252/0x2e0 [ 47.381583][ T3486] __se_sys_sendmsg+0x19a/0x260 [ 47.386589][ T3486] do_syscall_64+0x3d/0xb0 [ 47.391162][ T3486] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 47.397213][ T3486] [ 47.399518][ T3486] [ 47.399518][ T3486] stack backtrace: [ 47.405382][ T3486] CPU: 1 PID: 3486 Comm: syz-executor727 Not tainted 5.15.126-syzkaller #0 [ 47.413941][ T3486] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 47.423978][ T3486] Call Trace: [ 47.427244][ T3486] [ 47.430161][ T3486] dump_stack_lvl+0x1e3/0x2cb [ 47.434820][ T3486] ? io_uring_drop_tctx_refs+0x19d/0x19d [ 47.440434][ T3486] ? panic+0x84d/0x84d [ 47.444483][ T3486] ? print_shortest_lock_dependencies+0xee/0x150 [ 47.450790][ T3486] validate_chain+0x4cfe/0x58b0 [ 47.455626][ T3486] ? reacquire_held_locks+0x660/0x660 [ 47.460973][ T3486] ? validate_chain+0x112/0x58b0 [ 47.465895][ T3486] ? reacquire_held_locks+0x660/0x660 [ 47.471269][ T3486] ? mark_lock+0x98/0x340 [ 47.475580][ T3486] __lock_acquire+0x1295/0x1ff0 [ 47.480414][ T3486] lock_acquire+0x1db/0x4f0 [ 47.484898][ T3486] ? slab_pre_alloc_hook+0x22/0xc0 [ 47.489989][ T3486] ? read_lock_is_recursive+0x10/0x10 [ 47.495348][ T3486] fs_reclaim_acquire+0x83/0x120 [ 47.500261][ T3486] ? slab_pre_alloc_hook+0x22/0xc0 [ 47.505349][ T3486] slab_pre_alloc_hook+0x22/0xc0 [ 47.510267][ T3486] __kmalloc_node+0x71/0x390 [ 47.514835][ T3486] ? kvmalloc_node+0x80/0x140 [ 47.519490][ T3486] ? __bpf_trace_softirq+0x10/0x10 [ 47.524581][ T3486] kvmalloc_node+0x80/0x140 [ 47.529065][ T3486] get_dist_table+0x83/0x2c0 [ 47.533638][ T3486] netem_change+0xa05/0x20c0 [ 47.538207][ T3486] ? netem_destroy+0xb0/0xb0 [ 47.542780][ T3486] ? debug_object_init+0x10/0x10 [ 47.547695][ T3486] ? memset+0x1f/0x40 [ 47.551663][ T3486] ? lockdep_init_map_type+0x9d/0x8d0 [ 47.557016][ T3486] ? memset+0x1f/0x40 [ 47.560975][ T3486] ? __hrtimer_init+0x181/0x260 [ 47.565803][ T3486] netem_init+0x58/0xb0 [ 47.569934][ T3486] ? qdisc_peek_dequeued+0x220/0x220 [ 47.575196][ T3486] qdisc_create+0x8ae/0x1390 [ 47.579768][ T3486] ? qdisc_notify+0x380/0x380 [ 47.584428][ T3486] ? apparmor_capable+0x12e/0x190 [ 47.589518][ T3486] tc_modify_qdisc+0xac5/0x1710 [ 47.594366][ T3486] ? rcu_lock_release+0x20/0x20 [ 47.599202][ T3486] ? rcu_lock_release+0x20/0x20 [ 47.604031][ T3486] rtnetlink_rcv_msg+0x993/0xee0 [ 47.608946][ T3486] ? reacquire_held_locks+0x660/0x660 [ 47.614297][ T3486] ? rtnetlink_bind+0x80/0x80 [ 47.618949][ T3486] ? is_bpf_text_address+0x24f/0x260 [ 47.624216][ T3486] ? stack_trace_save+0x1c0/0x1c0 [ 47.629222][ T3486] ? __kernel_text_address+0x94/0x100 [ 47.634582][ T3486] ? unwind_get_return_address+0x49/0x80 [ 47.640195][ T3486] ? arch_stack_walk+0xf3/0x140 [ 47.645023][ T3486] ? mark_lock+0x98/0x340 [ 47.649328][ T3486] ? mark_lock+0x98/0x340 [ 47.653634][ T3486] ? __lock_acquire+0x1295/0x1ff0 [ 47.658644][ T3486] netlink_rcv_skb+0x1cf/0x410 [ 47.663391][ T3486] ? rtnetlink_bind+0x80/0x80 [ 47.668045][ T3486] ? netlink_ack+0xb10/0xb10 [ 47.672616][ T3486] netlink_unicast+0x7b6/0x980 [ 47.677363][ T3486] ? netlink_detachskb+0x90/0x90 [ 47.682281][ T3486] ? 0xffffffff81000000 [ 47.686415][ T3486] ? __check_object_size+0x300/0x410 [ 47.691680][ T3486] ? bpf_lsm_netlink_send+0x5/0x10 [ 47.696775][ T3486] netlink_sendmsg+0xa30/0xd60 [ 47.701523][ T3486] ? netlink_getsockopt+0x5b0/0x5b0 [ 47.706703][ T3486] ? aa_sock_msg_perm+0x91/0x150 [ 47.711618][ T3486] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 47.716882][ T3486] ? security_socket_sendmsg+0x7d/0xa0 [ 47.722330][ T3486] ? netlink_getsockopt+0x5b0/0x5b0 [ 47.727508][ T3486] ____sys_sendmsg+0x59e/0x8f0 [ 47.732257][ T3486] ? iovec_from_user+0x300/0x390 [ 47.737176][ T3486] ? __sys_sendmsg_sock+0x30/0x30 [ 47.742190][ T3486] ___sys_sendmsg+0x252/0x2e0 [ 47.746847][ T3486] ? __sys_sendmsg+0x260/0x260 [ 47.751592][ T3486] ? __lock_acquire+0x1295/0x1ff0 [ 47.756611][ T3486] ? __context_tracking_enter+0x5f/0x90 [ 47.762136][ T3486] ? __context_tracking_exit+0x4c/0x80 [ 47.767575][ T3486] ? __fdget+0x158/0x220 [ 47.771798][ T3486] __se_sys_sendmsg+0x19a/0x260 [ 47.776627][ T3486] ? __x64_sys_sendmsg+0x80/0x80 [ 47.781550][ T3486] ? syscall_enter_from_user_mode+0x2e/0x230 [ 47.787508][ T3486] ? lockdep_hardirqs_on+0x94/0x130 [ 47.792693][ T3486] ? syscall_enter_from_user_mode+0x2e/0x230 [ 47.798648][ T3486] do_syscall_64+0x3d/0xb0 [ 47.803045][ T3486] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 47.808918][ T3486] RIP: 0033:0x7ff223e557a9 [ 47.813312][ T3486] 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 [ 47.832980][ T3486] RSP: 002b:00007fff8576b968 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 47.841376][ T3486] RAX: ffffffffffffffda RBX: 00007fff8576bb38 RCX: 00007ff223e557a9 [ 47.849335][ T3486] RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000003 [ 47.857670][ T3486] RBP: 00007ff223ec8610 R08: 0000000000000001 R09: 00007fff8576bb38 [ 47.865622][ T3486] R10: 0000000000000018 R11: 0000000000000246 R12: 0000000000000001 [ 47.873670][ T3486] R13: 00007fff8576bb28 R14: 0000000000000001 R15: 0000000000000001 [ 47.881646][ T3486] [ 47.884747][ T3486] BUG: sleeping function called from invalid context at include/linux/sched/mm.h:209 [ 47.894240][ T3486] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 3486, name: syz-executor727 [ 47.903718][ T3486] INFO: lockdep is turned off. [ 47.908485][ T3486] Preemption disabled at: [ 47.908494][ T3486] [<0000000000000000>] 0x0 [ 47.917232][ T3486] CPU: 1 PID: 3486 Comm: syz-executor727 Not tainted 5.15.126-syzkaller #0 [ 47.925813][ T3486] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 47.936021][ T3486] Call Trace: [ 47.939291][ T3486] [ 47.942211][ T3486] dump_stack_lvl+0x1e3/0x2cb [ 47.946869][ T3486] ? io_uring_drop_tctx_refs+0x19d/0x19d [ 47.952482][ T3486] ? panic+0x84d/0x84d [ 47.956537][ T3486] ? rcu_is_watching+0x11/0xa0 [ 47.961280][ T3486] ? rcu_is_watching+0x11/0xa0 [ 47.966021][ T3486] ___might_sleep+0x547/0x6a0 [ 47.970679][ T3486] ? __might_sleep+0xc0/0xc0 [ 47.975346][ T3486] slab_pre_alloc_hook+0x44/0xc0 [ 47.980316][ T3486] __kmalloc_node+0x71/0x390 [ 47.984899][ T3486] ? kvmalloc_node+0x80/0x140 [ 47.989557][ T3486] ? __bpf_trace_softirq+0x10/0x10 [ 47.994655][ T3486] kvmalloc_node+0x80/0x140 [ 47.999223][ T3486] get_dist_table+0x83/0x2c0 [ 48.003792][ T3486] netem_change+0xa05/0x20c0 [ 48.008364][ T3486] ? netem_destroy+0xb0/0xb0 [ 48.012932][ T3486] ? debug_object_init+0x10/0x10 [ 48.017875][ T3486] ? memset+0x1f/0x40 [ 48.022012][ T3486] ? lockdep_init_map_type+0x9d/0x8d0 [ 48.027471][ T3486] ? memset+0x1f/0x40 [ 48.031444][ T3486] ? __hrtimer_init+0x181/0x260 [ 48.036274][ T3486] netem_init+0x58/0xb0 [ 48.040409][ T3486] ? qdisc_peek_dequeued+0x220/0x220 [ 48.045670][ T3486] qdisc_create+0x8ae/0x1390 [ 48.050239][ T3486] ? qdisc_notify+0x380/0x380 [ 48.054896][ T3486] ? apparmor_capable+0x12e/0x190 [ 48.059987][ T3486] tc_modify_qdisc+0xac5/0x1710 [ 48.064823][ T3486] ? rcu_lock_release+0x20/0x20 [ 48.069654][ T3486] ? rcu_lock_release+0x20/0x20 [ 48.074495][ T3486] rtnetlink_rcv_msg+0x993/0xee0 [ 48.079411][ T3486] ? reacquire_held_locks+0x660/0x660 [ 48.084761][ T3486] ? rtnetlink_bind+0x80/0x80 [ 48.089416][ T3486] ? is_bpf_text_address+0x24f/0x260 [ 48.094679][ T3486] ? stack_trace_save+0x1c0/0x1c0 [ 48.099686][ T3486] ? __kernel_text_address+0x94/0x100 [ 48.105144][ T3486] ? unwind_get_return_address+0x49/0x80 [ 48.110864][ T3486] ? arch_stack_walk+0xf3/0x140 [ 48.115715][ T3486] ? mark_lock+0x98/0x340 [ 48.120046][ T3486] ? mark_lock+0x98/0x340 [ 48.124364][ T3486] ? __lock_acquire+0x1295/0x1ff0 [ 48.129373][ T3486] netlink_rcv_skb+0x1cf/0x410 [ 48.134164][ T3486] ? rtnetlink_bind+0x80/0x80 [ 48.138918][ T3486] ? netlink_ack+0xb10/0xb10 [ 48.143507][ T3486] netlink_unicast+0x7b6/0x980 [ 48.148340][ T3486] ? netlink_detachskb+0x90/0x90 [ 48.153255][ T3486] ? 0xffffffff81000000 [ 48.157384][ T3486] ? __check_object_size+0x300/0x410 [ 48.162648][ T3486] ? bpf_lsm_netlink_send+0x5/0x10 [ 48.167734][ T3486] netlink_sendmsg+0xa30/0xd60 [ 48.172479][ T3486] ? netlink_getsockopt+0x5b0/0x5b0 [ 48.177652][ T3486] ? aa_sock_msg_perm+0x91/0x150 [ 48.182564][ T3486] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 48.187822][ T3486] ? security_socket_sendmsg+0x7d/0xa0 [ 48.193257][ T3486] ? netlink_getsockopt+0x5b0/0x5b0 [ 48.198435][ T3486] ____sys_sendmsg+0x59e/0x8f0 [ 48.203177][ T3486] ? iovec_from_user+0x300/0x390 [ 48.208094][ T3486] ? __sys_sendmsg_sock+0x30/0x30 [ 48.213101][ T3486] ___sys_sendmsg+0x252/0x2e0 [ 48.217758][ T3486] ? __sys_sendmsg+0x260/0x260 [ 48.222501][ T3486] ? __lock_acquire+0x1295/0x1ff0 [ 48.227627][ T3486] ? __context_tracking_enter+0x5f/0x90 [ 48.233164][ T3486] ? __context_tracking_exit+0x4c/0x80 [ 48.238604][ T3486] ? __fdget+0x158/0x220 [ 48.242830][ T3486] __se_sys_sendmsg+0x19a/0x260 [ 48.247659][ T3486] ? __x64_sys_sendmsg+0x80/0x80 [ 48.252577][ T3486] ? syscall_enter_from_user_mode+0x2e/0x230 [ 48.258535][ T3486] ? lockdep_hardirqs_on+0x94/0x130 [ 48.263713][ T3486] ? syscall_enter_from_user_mode+0x2e/0x230 [ 48.269672][ T3486] do_syscall_64+0x3d/0xb0 [ 48.274158][ T3486] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 48.280043][ T3486] RIP: 0033:0x7ff223e557a9 [ 48.284440][ T3486] 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 [ 48.304026][ T3486] RSP: 002b:00007fff8576b968 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 48.312421][ T3486] RAX: ffffffffffffffda RBX: 00007fff8576bb38 RCX: 00007ff223e557a9 [ 48.320376][ T3486] RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000003 [ 48.328327][ T3486] RBP: 00007ff223ec8610 R08: 0000000000000001 R09: 00007fff8576bb38 [ 48.336277][ T3486] R10: 0000000000000018 R11: 0000000000000246 R12: 0000000000000001 [ 48.344240][ T3486] R13: 00007fff8576bb28 R14: 0000000000000001 R15: 0000000000000001 [ 48.352209][ T3486]