Warning: Permanently added '10.128.1.88' (ED25519) to the list of known hosts. executing program [ 52.486684][ T3488] [ 52.489036][ T3488] ===================================================== [ 52.495958][ T3488] WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected [ 52.503400][ T3488] 5.15.126-syzkaller #0 Not tainted [ 52.508585][ T3488] ----------------------------------------------------- [ 52.515502][ T3488] syz-executor361/3488 [HC0[0]:SC0[2]:HE1:SE0] is trying to acquire: [ 52.523566][ T3488] ffffffff8c9dfba0 (fs_reclaim){+.+.}-{0:0}, at: slab_pre_alloc_hook+0x22/0xc0 [ 52.532563][ T3488] [ 52.532563][ T3488] and this task is already holding: [ 52.540051][ T3488] ffffffff8da20808 (noop_qdisc.q.lock){+.-.}-{2:2}, at: netem_change+0x257/0x20c0 [ 52.549361][ T3488] which would create a new lock dependency: [ 52.555324][ T3488] (noop_qdisc.q.lock){+.-.}-{2:2} -> (fs_reclaim){+.+.}-{0:0} [ 52.562890][ T3488] [ 52.562890][ T3488] but this new dependency connects a SOFTIRQ-irq-safe lock: [ 52.572323][ T3488] (noop_qdisc.q.lock){+.-.}-{2:2} [ 52.572345][ T3488] [ 52.572345][ T3488] ... which became SOFTIRQ-irq-safe at: [ 52.585252][ T3488] lock_acquire+0x1db/0x4f0 [ 52.589839][ T3488] _raw_spin_lock+0x2a/0x40 [ 52.594416][ T3488] net_tx_action+0x6c5/0x8e0 [ 52.599081][ T3488] __do_softirq+0x3b3/0x93a [ 52.604010][ T3488] do_softirq+0x162/0x240 [ 52.608415][ T3488] __local_bh_enable_ip+0x1b1/0x1f0 [ 52.613688][ T3488] dev_deactivate_many+0x524/0xbf0 [ 52.618876][ T3488] dev_deactivate+0x177/0x270 [ 52.623751][ T3488] linkwatch_do_dev+0x104/0x160 [ 52.628682][ T3488] __linkwatch_run_queue+0x4ca/0x7f0 [ 52.634048][ T3488] linkwatch_event+0x48/0x50 [ 52.638739][ T3488] process_one_work+0x8a1/0x10c0 [ 52.643758][ T3488] worker_thread+0xaca/0x1280 [ 52.648508][ T3488] kthread+0x3f6/0x4f0 [ 52.652657][ T3488] ret_from_fork+0x1f/0x30 [ 52.657151][ T3488] [ 52.657151][ T3488] to a SOFTIRQ-irq-unsafe lock: [ 52.664154][ T3488] (fs_reclaim){+.+.}-{0:0} [ 52.664178][ T3488] [ 52.664178][ T3488] ... which became SOFTIRQ-irq-unsafe at: [ 52.676528][ T3488] ... [ 52.676534][ T3488] lock_acquire+0x1db/0x4f0 [ 52.683684][ T3488] fs_reclaim_acquire+0x83/0x120 [ 52.688698][ T3488] slab_pre_alloc_hook+0x22/0xc0 [ 52.693712][ T3488] kmem_cache_alloc_trace+0x49/0x290 [ 52.699073][ T3488] wq_numa_init+0x122/0x49f [ 52.703654][ T3488] workqueue_init+0x18/0x5e1 [ 52.708318][ T3488] kernel_init_freeable+0x40a/0x5c5 [ 52.713593][ T3488] kernel_init+0x19/0x290 [ 52.717995][ T3488] ret_from_fork+0x1f/0x30 [ 52.722489][ T3488] [ 52.722489][ T3488] other info that might help us debug this: [ 52.722489][ T3488] [ 52.732725][ T3488] Possible interrupt unsafe locking scenario: [ 52.732725][ T3488] [ 52.741049][ T3488] CPU0 CPU1 [ 52.746400][ T3488] ---- ---- [ 52.751750][ T3488] lock(fs_reclaim); [ 52.755723][ T3488] local_irq_disable(); [ 52.762463][ T3488] lock(noop_qdisc.q.lock); [ 52.769585][ T3488] lock(fs_reclaim); [ 52.776077][ T3488] [ 52.779514][ T3488] lock(noop_qdisc.q.lock); [ 52.784275][ T3488] [ 52.784275][ T3488] *** DEADLOCK *** [ 52.784275][ T3488] [ 52.792404][ T3488] 2 locks held by syz-executor361/3488: [ 52.797938][ T3488] #0: ffffffff8d9e1148 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x94c/0xee0 [ 52.807329][ T3488] #1: ffffffff8da20808 (noop_qdisc.q.lock){+.-.}-{2:2}, at: netem_change+0x257/0x20c0 [ 52.816975][ T3488] [ 52.816975][ T3488] the dependencies between SOFTIRQ-irq-safe lock and the holding lock: [ 52.827363][ T3488] -> (noop_qdisc.q.lock){+.-.}-{2:2} { [ 52.832824][ T3488] HARDIRQ-ON-W at: [ 52.836790][ T3488] lock_acquire+0x1db/0x4f0 [ 52.842936][ T3488] _raw_spin_lock+0x2a/0x40 [ 52.849078][ T3488] __dev_queue_xmit+0xad6/0x3230 [ 52.855659][ T3488] tx+0x64/0x100 [ 52.860849][ T3488] kthread+0x234/0x440 [ 52.866558][ T3488] kthread+0x3f6/0x4f0 [ 52.872270][ T3488] ret_from_fork+0x1f/0x30 [ 52.878330][ T3488] IN-SOFTIRQ-W at: [ 52.882297][ T3488] lock_acquire+0x1db/0x4f0 [ 52.888445][ T3488] _raw_spin_lock+0x2a/0x40 [ 52.894586][ T3488] net_tx_action+0x6c5/0x8e0 [ 52.900818][ T3488] __do_softirq+0x3b3/0x93a [ 52.906960][ T3488] do_softirq+0x162/0x240 [ 52.912957][ T3488] __local_bh_enable_ip+0x1b1/0x1f0 [ 52.919793][ T3488] dev_deactivate_many+0x524/0xbf0 [ 52.926572][ T3488] dev_deactivate+0x177/0x270 [ 52.932891][ T3488] linkwatch_do_dev+0x104/0x160 [ 52.939383][ T3488] __linkwatch_run_queue+0x4ca/0x7f0 [ 52.946336][ T3488] linkwatch_event+0x48/0x50 [ 52.952568][ T3488] process_one_work+0x8a1/0x10c0 [ 52.959151][ T3488] worker_thread+0xaca/0x1280 [ 52.965471][ T3488] kthread+0x3f6/0x4f0 [ 52.971183][ T3488] ret_from_fork+0x1f/0x30 [ 52.977256][ T3488] INITIAL USE at: [ 52.981142][ T3488] lock_acquire+0x1db/0x4f0 [ 52.987204][ T3488] _raw_spin_lock+0x2a/0x40 [ 52.993264][ T3488] __dev_queue_xmit+0xad6/0x3230 [ 52.999752][ T3488] tx+0x64/0x100 [ 53.004851][ T3488] kthread+0x234/0x440 [ 53.010488][ T3488] kthread+0x3f6/0x4f0 [ 53.016151][ T3488] ret_from_fork+0x1f/0x30 [ 53.022129][ T3488] } [ 53.024621][ T3488] ... key at: [] noop_qdisc+0x108/0x320 [ 53.032279][ T3488] [ 53.032279][ T3488] the dependencies between the lock to be acquired [ 53.032288][ T3488] and SOFTIRQ-irq-unsafe lock: [ 53.045895][ T3488] -> (fs_reclaim){+.+.}-{0:0} { [ 53.050752][ T3488] HARDIRQ-ON-W at: [ 53.054722][ T3488] lock_acquire+0x1db/0x4f0 [ 53.060876][ T3488] fs_reclaim_acquire+0x83/0x120 [ 53.067456][ T3488] slab_pre_alloc_hook+0x22/0xc0 [ 53.074036][ T3488] kmem_cache_alloc_trace+0x49/0x290 [ 53.080964][ T3488] wq_numa_init+0x122/0x49f [ 53.087109][ T3488] workqueue_init+0x18/0x5e1 [ 53.093348][ T3488] kernel_init_freeable+0x40a/0x5c5 [ 53.100188][ T3488] kernel_init+0x19/0x290 [ 53.106157][ T3488] ret_from_fork+0x1f/0x30 [ 53.112241][ T3488] SOFTIRQ-ON-W at: [ 53.116209][ T3488] lock_acquire+0x1db/0x4f0 [ 53.122389][ T3488] fs_reclaim_acquire+0x83/0x120 [ 53.129057][ T3488] slab_pre_alloc_hook+0x22/0xc0 [ 53.135638][ T3488] kmem_cache_alloc_trace+0x49/0x290 [ 53.142759][ T3488] wq_numa_init+0x122/0x49f [ 53.148919][ T3488] workqueue_init+0x18/0x5e1 [ 53.155150][ T3488] kernel_init_freeable+0x40a/0x5c5 [ 53.161991][ T3488] kernel_init+0x19/0x290 [ 53.167964][ T3488] ret_from_fork+0x1f/0x30 [ 53.174036][ T3488] INITIAL USE at: [ 53.177927][ T3488] lock_acquire+0x1db/0x4f0 [ 53.183985][ T3488] fs_reclaim_acquire+0x83/0x120 [ 53.190481][ T3488] slab_pre_alloc_hook+0x22/0xc0 [ 53.196972][ T3488] kmem_cache_alloc_trace+0x49/0x290 [ 53.203811][ T3488] wq_numa_init+0x122/0x49f [ 53.209871][ T3488] workqueue_init+0x18/0x5e1 [ 53.216015][ T3488] kernel_init_freeable+0x40a/0x5c5 [ 53.222768][ T3488] kernel_init+0x19/0x290 [ 53.228653][ T3488] ret_from_fork+0x1f/0x30 [ 53.234627][ T3488] } [ 53.237126][ T3488] ... key at: [] __fs_reclaim_map+0x0/0x160 [ 53.245098][ T3488] ... acquired at: [ 53.248891][ T3488] lock_acquire+0x1db/0x4f0 [ 53.253570][ T3488] fs_reclaim_acquire+0x83/0x120 [ 53.258675][ T3488] slab_pre_alloc_hook+0x22/0xc0 [ 53.263779][ T3488] __kmalloc_node+0x71/0x390 [ 53.268707][ T3488] kvmalloc_node+0x80/0x140 [ 53.273374][ T3488] get_dist_table+0x83/0x2c0 [ 53.278331][ T3488] netem_change+0xa05/0x20c0 [ 53.283186][ T3488] netem_init+0x58/0xb0 [ 53.287526][ T3488] qdisc_create+0x8ae/0x1390 [ 53.292283][ T3488] tc_modify_qdisc+0xac5/0x1710 [ 53.297307][ T3488] rtnetlink_rcv_msg+0x993/0xee0 [ 53.302432][ T3488] netlink_rcv_skb+0x1cf/0x410 [ 53.307366][ T3488] netlink_unicast+0x7b6/0x980 [ 53.312296][ T3488] netlink_sendmsg+0xa30/0xd60 [ 53.317225][ T3488] ____sys_sendmsg+0x59e/0x8f0 [ 53.322154][ T3488] ___sys_sendmsg+0x252/0x2e0 [ 53.326996][ T3488] __se_sys_sendmsg+0x19a/0x260 [ 53.332011][ T3488] do_syscall_64+0x3d/0xb0 [ 53.336592][ T3488] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 53.342660][ T3488] [ 53.344986][ T3488] [ 53.344986][ T3488] stack backtrace: [ 53.350893][ T3488] CPU: 0 PID: 3488 Comm: syz-executor361 Not tainted 5.15.126-syzkaller #0 [ 53.359477][ T3488] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 53.369550][ T3488] Call Trace: [ 53.372826][ T3488] [ 53.375761][ T3488] dump_stack_lvl+0x1e3/0x2cb [ 53.380464][ T3488] ? io_uring_drop_tctx_refs+0x19d/0x19d [ 53.386096][ T3488] ? panic+0x84d/0x84d [ 53.390279][ T3488] ? print_shortest_lock_dependencies+0xee/0x150 [ 53.396613][ T3488] validate_chain+0x4cfe/0x58b0 [ 53.401462][ T3488] ? reacquire_held_locks+0x660/0x660 [ 53.406822][ T3488] ? validate_chain+0x112/0x58b0 [ 53.411768][ T3488] ? reacquire_held_locks+0x660/0x660 [ 53.417149][ T3488] ? mark_lock+0x98/0x340 [ 53.421483][ T3488] __lock_acquire+0x1295/0x1ff0 [ 53.426343][ T3488] lock_acquire+0x1db/0x4f0 [ 53.430870][ T3488] ? slab_pre_alloc_hook+0x22/0xc0 [ 53.436109][ T3488] ? read_lock_is_recursive+0x10/0x10 [ 53.441500][ T3488] fs_reclaim_acquire+0x83/0x120 [ 53.446448][ T3488] ? slab_pre_alloc_hook+0x22/0xc0 [ 53.451556][ T3488] slab_pre_alloc_hook+0x22/0xc0 [ 53.456487][ T3488] __kmalloc_node+0x71/0x390 [ 53.461070][ T3488] ? kvmalloc_node+0x80/0x140 [ 53.465738][ T3488] ? __bpf_trace_softirq+0x10/0x10 [ 53.471101][ T3488] kvmalloc_node+0x80/0x140 [ 53.475598][ T3488] get_dist_table+0x83/0x2c0 [ 53.480184][ T3488] netem_change+0xa05/0x20c0 [ 53.484773][ T3488] ? netem_destroy+0xb0/0xb0 [ 53.489364][ T3488] ? debug_object_init+0x10/0x10 [ 53.494309][ T3488] ? memset+0x1f/0x40 [ 53.498284][ T3488] ? lockdep_init_map_type+0x9d/0x8d0 [ 53.503659][ T3488] ? memset+0x1f/0x40 [ 53.507636][ T3488] ? __hrtimer_init+0x181/0x260 [ 53.512488][ T3488] netem_init+0x58/0xb0 [ 53.516640][ T3488] ? qdisc_peek_dequeued+0x220/0x220 [ 53.521920][ T3488] qdisc_create+0x8ae/0x1390 [ 53.526504][ T3488] ? qdisc_notify+0x380/0x380 [ 53.531167][ T3488] ? apparmor_capable+0x12e/0x190 [ 53.536187][ T3488] tc_modify_qdisc+0xac5/0x1710 [ 53.541039][ T3488] ? rcu_lock_release+0x20/0x20 [ 53.545888][ T3488] ? rcu_lock_release+0x20/0x20 [ 53.550730][ T3488] rtnetlink_rcv_msg+0x993/0xee0 [ 53.555665][ T3488] ? reacquire_held_locks+0x660/0x660 [ 53.561029][ T3488] ? rtnetlink_bind+0x80/0x80 [ 53.565693][ T3488] ? is_bpf_text_address+0x24f/0x260 [ 53.570970][ T3488] ? stack_trace_save+0x1c0/0x1c0 [ 53.575985][ T3488] ? __kernel_text_address+0x94/0x100 [ 53.581351][ T3488] ? unwind_get_return_address+0x49/0x80 [ 53.586979][ T3488] ? arch_stack_walk+0xf3/0x140 [ 53.591824][ T3488] ? mark_lock+0x98/0x340 [ 53.596148][ T3488] ? mark_lock+0x98/0x340 [ 53.600468][ T3488] ? __lock_acquire+0x1295/0x1ff0 [ 53.605497][ T3488] netlink_rcv_skb+0x1cf/0x410 [ 53.610282][ T3488] ? rtnetlink_bind+0x80/0x80 [ 53.614955][ T3488] ? netlink_ack+0xb10/0xb10 [ 53.619543][ T3488] netlink_unicast+0x7b6/0x980 [ 53.624308][ T3488] ? netlink_detachskb+0x90/0x90 [ 53.629238][ T3488] ? 0xffffffff81000000 [ 53.633381][ T3488] ? __check_object_size+0x300/0x410 [ 53.638680][ T3488] ? bpf_lsm_netlink_send+0x5/0x10 [ 53.643787][ T3488] netlink_sendmsg+0xa30/0xd60 [ 53.648548][ T3488] ? netlink_getsockopt+0x5b0/0x5b0 [ 53.653737][ T3488] ? release_pages+0x1bb9/0x1f40 [ 53.658664][ T3488] ? aa_sock_msg_perm+0x91/0x150 [ 53.663597][ T3488] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 53.668958][ T3488] ? security_socket_sendmsg+0x7d/0xa0 [ 53.674408][ T3488] ? netlink_getsockopt+0x5b0/0x5b0 [ 53.679602][ T3488] ____sys_sendmsg+0x59e/0x8f0 [ 53.684360][ T3488] ? iovec_from_user+0x300/0x390 [ 53.689293][ T3488] ? __sys_sendmsg_sock+0x30/0x30 [ 53.694337][ T3488] ___sys_sendmsg+0x252/0x2e0 [ 53.699010][ T3488] ? __sys_sendmsg+0x260/0x260 [ 53.703769][ T3488] ? __lock_acquire+0x1295/0x1ff0 [ 53.708797][ T3488] ? __context_tracking_enter+0x5f/0x90 [ 53.714337][ T3488] ? __context_tracking_exit+0x4c/0x80 [ 53.719787][ T3488] ? __fdget+0x158/0x220 [ 53.724021][ T3488] __se_sys_sendmsg+0x19a/0x260 [ 53.728867][ T3488] ? __x64_sys_sendmsg+0x80/0x80 [ 53.733798][ T3488] ? syscall_enter_from_user_mode+0x2e/0x230 [ 53.739772][ T3488] ? lockdep_hardirqs_on+0x94/0x130 [ 53.744963][ T3488] ? syscall_enter_from_user_mode+0x2e/0x230 [ 53.750936][ T3488] do_syscall_64+0x3d/0xb0 [ 53.755356][ T3488] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 53.761521][ T3488] RIP: 0033:0x7f227b4404e9 [ 53.765944][ T3488] 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 [ 53.785544][ T3488] RSP: 002b:00007fff1d945018 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 53.793954][ T3488] RAX: ffffffffffffffda RBX: 00007fff1d9451e8 RCX: 00007f227b4404e9 [ 53.801920][ T3488] RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000003 [ 53.809884][ T3488] RBP: 00007f227b4b3610 R08: 00000000ffffffff R09: 00007fff1d9451e8 [ 53.817849][ T3488] R10: 000000000000473c R11: 0000000000000246 R12: 0000000000000001 [ 53.825810][ T3488] R13: 00007fff1d9451d8 R14: 0000000000000001 R15: 0000000000000001 [ 53.833780][ T3488] [ 53.836863][ T3488] BUG: sleeping function called from invalid context at include/linux/sched/mm.h:209 [ 53.846354][ T3488] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 3488, name: syz-executor361 [ 53.855933][ T3488] INFO: lockdep is turned off. [ 53.860696][ T3488] Preemption disabled at: [ 53.860703][ T3488] [<0000000000000000>] 0x0 [ 53.869458][ T3488] CPU: 0 PID: 3488 Comm: syz-executor361 Not tainted 5.15.126-syzkaller #0 [ 53.878125][ T3488] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 [ 53.888170][ T3488] Call Trace: [ 53.891441][ T3488] [ 53.894363][ T3488] dump_stack_lvl+0x1e3/0x2cb [ 53.899039][ T3488] ? io_uring_drop_tctx_refs+0x19d/0x19d [ 53.904668][ T3488] ? panic+0x84d/0x84d [ 53.908744][ T3488] ? rcu_is_watching+0x11/0xa0 [ 53.913504][ T3488] ? rcu_is_watching+0x11/0xa0 [ 53.918293][ T3488] ___might_sleep+0x547/0x6a0 [ 53.922965][ T3488] ? __might_sleep+0xc0/0xc0 [ 53.927547][ T3488] slab_pre_alloc_hook+0x44/0xc0 [ 53.932476][ T3488] __kmalloc_node+0x71/0x390 [ 53.937071][ T3488] ? kvmalloc_node+0x80/0x140 [ 53.941784][ T3488] ? __bpf_trace_softirq+0x10/0x10 [ 53.946888][ T3488] kvmalloc_node+0x80/0x140 [ 53.951384][ T3488] get_dist_table+0x83/0x2c0 [ 53.955967][ T3488] netem_change+0xa05/0x20c0 [ 53.960678][ T3488] ? netem_destroy+0xb0/0xb0 [ 53.965273][ T3488] ? debug_object_init+0x10/0x10 [ 53.970243][ T3488] ? memset+0x1f/0x40 [ 53.974314][ T3488] ? lockdep_init_map_type+0x9d/0x8d0 [ 53.979686][ T3488] ? memset+0x1f/0x40 [ 53.983661][ T3488] ? __hrtimer_init+0x181/0x260 [ 53.988509][ T3488] netem_init+0x58/0xb0 [ 53.992659][ T3488] ? qdisc_peek_dequeued+0x220/0x220 [ 53.997934][ T3488] qdisc_create+0x8ae/0x1390 [ 54.002518][ T3488] ? qdisc_notify+0x380/0x380 [ 54.007185][ T3488] ? apparmor_capable+0x12e/0x190 [ 54.012300][ T3488] tc_modify_qdisc+0xac5/0x1710 [ 54.017166][ T3488] ? rcu_lock_release+0x20/0x20 [ 54.022026][ T3488] ? rcu_lock_release+0x20/0x20 [ 54.026878][ T3488] rtnetlink_rcv_msg+0x993/0xee0 [ 54.031814][ T3488] ? reacquire_held_locks+0x660/0x660 [ 54.037183][ T3488] ? rtnetlink_bind+0x80/0x80 [ 54.041852][ T3488] ? is_bpf_text_address+0x24f/0x260 [ 54.047128][ T3488] ? stack_trace_save+0x1c0/0x1c0 [ 54.052144][ T3488] ? __kernel_text_address+0x94/0x100 [ 54.057520][ T3488] ? unwind_get_return_address+0x49/0x80 [ 54.063144][ T3488] ? arch_stack_walk+0xf3/0x140 [ 54.067995][ T3488] ? mark_lock+0x98/0x340 [ 54.072317][ T3488] ? mark_lock+0x98/0x340 [ 54.076634][ T3488] ? __lock_acquire+0x1295/0x1ff0 [ 54.081661][ T3488] netlink_rcv_skb+0x1cf/0x410 [ 54.086419][ T3488] ? rtnetlink_bind+0x80/0x80 [ 54.091090][ T3488] ? netlink_ack+0xb10/0xb10 [ 54.095678][ T3488] netlink_unicast+0x7b6/0x980 [ 54.100467][ T3488] ? netlink_detachskb+0x90/0x90 [ 54.105402][ T3488] ? 0xffffffff81000000 [ 54.109546][ T3488] ? __check_object_size+0x300/0x410 [ 54.114827][ T3488] ? bpf_lsm_netlink_send+0x5/0x10 [ 54.119936][ T3488] netlink_sendmsg+0xa30/0xd60 [ 54.124710][ T3488] ? netlink_getsockopt+0x5b0/0x5b0 [ 54.129932][ T3488] ? release_pages+0x1bb9/0x1f40 [ 54.134881][ T3488] ? aa_sock_msg_perm+0x91/0x150 [ 54.139823][ T3488] ? bpf_lsm_socket_sendmsg+0x5/0x10 [ 54.145111][ T3488] ? security_socket_sendmsg+0x7d/0xa0 [ 54.150575][ T3488] ? netlink_getsockopt+0x5b0/0x5b0 [ 54.155781][ T3488] ____sys_sendmsg+0x59e/0x8f0 [ 54.160557][ T3488] ? iovec_from_user+0x300/0x390 [ 54.165513][ T3488] ? __sys_sendmsg_sock+0x30/0x30 [ 54.170537][ T3488] ___sys_sendmsg+0x252/0x2e0 [ 54.175212][ T3488] ? __sys_sendmsg+0x260/0x260 [ 54.179986][ T3488] ? __lock_acquire+0x1295/0x1ff0 [ 54.185027][ T3488] ? __context_tracking_enter+0x5f/0x90 [ 54.190573][ T3488] ? __context_tracking_exit+0x4c/0x80 [ 54.196026][ T3488] ? __fdget+0x158/0x220 [ 54.200262][ T3488] __se_sys_sendmsg+0x19a/0x260 [ 54.205120][ T3488] ? __x64_sys_sendmsg+0x80/0x80 [ 54.210052][ T3488] ? syscall_enter_from_user_mode+0x2e/0x230 [ 54.216023][ T3488] ? lockdep_hardirqs_on+0x94/0x130 [ 54.221212][ T3488] ? syscall_enter_from_user_mode+0x2e/0x230 [ 54.227181][ T3488] do_syscall_64+0x3d/0xb0 [ 54.231591][ T3488] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 54.237475][ T3488] RIP: 0033:0x7f227b4404e9 [ 54.241910][ T3488] 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 [ 54.261507][ T3488] RSP: 002b:00007fff1d945018 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 54.269921][ T3488] RAX: ffffffffffffffda RBX: 00007fff1d9451e8 RCX: 00007f227b4404e9 [ 54.277887][ T3488] RDX: 0000000000000000 RSI: 00000000200007c0 RDI: 0000000000000003 [ 54.285849][ T3488] RBP: 00007f227b4b3610 R08: 00000000ffffffff R09: 00007fff1d9451e8 [ 54.293812][ T3488] R10: 000000000000473c R11: 0000000000000246 R12: 0000000000000001 [ 54.301779][ T3488] R13: 00007fff1d9451d8 R14: 0000000000000001 R15: 0000000000000001 [ 54.309748][ T3488]