Warning: Permanently added '10.128.10.40' (ECDSA) to the list of known hosts. syzkaller login: [ 50.756220][ T3591] BUG: sleeping function called from invalid context at kernel/locking/rwsem.c:1479 [ 50.765786][ T3591] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 3591, name: syz-executor342 [ 50.775235][ T3591] 1 lock held by syz-executor342/3591: [ 50.780679][ T3591] #0: ffffffff8c941f98 (css_set_lock){....}-{2:2}, at: cgroup_get_from_path+0x24/0x290 [ 50.790439][ T3591] irq event stamp: 14784 [ 50.794686][ T3591] hardirqs last enabled at (14783): [] _raw_spin_unlock_irqrestore+0x8b/0x130 [ 50.805175][ T3591] hardirqs last disabled at (14784): [] _raw_spin_lock_irq+0xa9/0x110 [ 50.814884][ T3591] softirqs last enabled at (14770): [] ipv6_setsockopt+0x2ee1/0x43c0 [ 50.824594][ T3591] softirqs last disabled at (14768): [] release_sock+0x2c/0x1c0 [ 50.833780][ T3591] Preemption disabled at: [ 50.833788][ T3591] [<0000000000000000>] 0x0 [ 50.842495][ T3591] CPU: 1 PID: 3591 Comm: syz-executor342 Not tainted 5.15.98-syzkaller #0 [ 50.850983][ T3591] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 50.861024][ T3591] Call Trace: [ 50.864297][ T3591] [ 50.867223][ T3591] dump_stack_lvl+0x1e3/0x2cb [ 50.871920][ T3591] ? ipv6_setsockopt+0x2ee1/0x43c0 [ 50.877037][ T3591] ? io_uring_drop_tctx_refs+0x19d/0x19d [ 50.882670][ T3591] ? panic+0x84d/0x84d [ 50.886742][ T3591] ___might_sleep+0x535/0x690 [ 50.891425][ T3591] ? __might_sleep+0xc0/0xc0 [ 50.896016][ T3591] ? rcu_lock_release+0x5/0x20 [ 50.900777][ T3591] down_read+0x17/0x50 [ 50.904847][ T3591] kernfs_walk_and_get_ns+0x7e/0x2b0 [ 50.910163][ T3591] ? kernfs_find_ns+0x500/0x500 [ 50.915029][ T3591] ? current_cgns_cgroup_from_root+0x277/0x2c0 [ 50.921181][ T3591] cgroup_get_from_path+0x5c/0x290 [ 50.926303][ T3591] cgroup_mt_check_v1+0x1a0/0x2b0 [ 50.931340][ T3591] xt_check_match+0x363/0xa30 [ 50.936028][ T3591] ? xt_find_match+0x6d/0x200 [ 50.940705][ T3591] ? mutex_unlock+0x10/0x10 [ 50.945208][ T3591] ? xt_check_proc_name+0x110/0x110 [ 50.950412][ T3591] ? pcpu_alloc+0x10fb/0x1900 [ 50.955134][ T3591] ? xt_find_match+0x1cf/0x200 [ 50.959926][ T3591] translate_table+0x1669/0x2320 [ 50.964893][ T3591] ? ip6t_register_table+0x6b0/0x6b0 [ 50.970181][ T3591] ? __might_fault+0xb8/0x110 [ 50.974861][ T3591] ? __might_sleep+0xc0/0xc0 [ 50.979446][ T3591] ? __lock_acquire+0x1ff0/0x1ff0 [ 50.984475][ T3591] ? __might_fault+0xb4/0x110 [ 50.989242][ T3591] do_ip6t_set_ctl+0x2cf3/0x3f50 [ 50.994202][ T3591] ? rcu_read_lock_sched_held+0x89/0x130 [ 50.999834][ T3591] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 51.005813][ T3591] ? read_lock_is_recursive+0x10/0x10 [ 51.011181][ T3591] ? cleanup_entry+0x4d0/0x4d0 [ 51.015945][ T3591] ? nf_setsockopt+0x238/0x2b0 [ 51.020716][ T3591] ? __mutex_lock_common+0x444/0x25a0 [ 51.026125][ T3591] ? __mutex_unlock_slowpath+0x218/0x750 [ 51.031761][ T3591] ? nf_setsockopt+0x38/0x2b0 [ 51.036427][ T3591] ? print_irqtrace_events+0x210/0x210 [ 51.041887][ T3591] ? mutex_unlock+0x10/0x10 [ 51.046390][ T3591] ? lockdep_hardirqs_on+0x94/0x130 [ 51.051595][ T3591] ? __local_bh_enable_ip+0x164/0x1f0 [ 51.056968][ T3591] nf_setsockopt+0x28a/0x2b0 [ 51.061566][ T3591] ipv6_setsockopt+0x2f5c/0x43c0 [ 51.066521][ T3591] ? reacquire_held_locks+0x660/0x660 [ 51.071897][ T3591] ? ipv6_update_options+0x3f0/0x3f0 [ 51.077177][ T3591] ? mark_lock+0x98/0x340 [ 51.081524][ T3591] ? mark_lock+0x98/0x340 [ 51.085882][ T3591] ? validate_chain+0x112/0x58b0 [ 51.090834][ T3591] ? rcu_read_lock_sched_held+0x89/0x130 [ 51.096458][ T3591] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 51.102446][ T3591] ? reacquire_held_locks+0x660/0x660 [ 51.107825][ T3591] ? aa_label_sk_perm+0x453/0x630 [ 51.112851][ T3591] ? aa_sk_perm+0x9d0/0x9d0 [ 51.117361][ T3591] ? do_raw_spin_unlock+0x137/0x8b0 [ 51.122568][ T3591] ? __might_sleep+0xc0/0xc0 [ 51.127167][ T3591] ? __lock_acquire+0x1295/0x1ff0 [ 51.132218][ T3591] ? aa_sk_perm+0x89b/0x9d0 [ 51.136865][ T3591] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 51.142998][ T3591] ? aa_af_perm+0x350/0x350 [ 51.147514][ T3591] ? aa_sock_opt_perm+0x79/0x110 [ 51.152472][ T3591] ? udpv6_setsockopt+0x77/0xa0 [ 51.157457][ T3591] ? sock_common_recvmsg+0x240/0x240 [ 51.162749][ T3591] __sys_setsockopt+0x57e/0x990 [ 51.167606][ T3591] ? __ia32_sys_recv+0xb0/0xb0 [ 51.172371][ T3591] ? syscall_enter_from_user_mode+0x2e/0x290 [ 51.178356][ T3591] __x64_sys_setsockopt+0xb1/0xc0 [ 51.183378][ T3591] do_syscall_64+0x3d/0xb0 [ 51.187793][ T3591] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 51.193691][ T3591] RIP: 0033:0x7fd36ebc4fd9 [ 51.198100][ T3591] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 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 c0 ff ff ff f7 d8 64 89 01 48 [ 51.217695][ T3591] RSP: 002b:00007ffdfa266958 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 51.226111][ T3591] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd36ebc4fd9 [ 51.234084][ T3591] RDX: 0000000000000040 RSI: 0000000000000029 RDI: 0000000000000003 [ 51.242046][ T3591] RBP: 00007fd36eb88fc0 R08: 0000000000000001 R09: 0000000000000000 [ 51.250016][ T3591] R10: 0000000020002680 R11: 0000000000000246 R12: 00007fd36eb89050 [ 51.257982][ T3591] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 51.265955][ T3591] [ 51.268977][ T3591] [ 51.271286][ T3591] ============================= [ 51.276134][ T3591] [ BUG: Invalid wait context ] [ 51.280963][ T3591] 5.15.98-syzkaller #0 Tainted: G W [ 51.287537][ T3591] ----------------------------- [ 51.292387][ T3591] syz-executor342/3591 is trying to lock: [ 51.298095][ T3591] ffffffff8ca4dfd0 (kernfs_rwsem){++++}-{3:3}, at: kernfs_walk_and_get_ns+0x7e/0x2b0 [ 51.307580][ T3591] other info that might help us debug this: [ 51.313455][ T3591] context-{4:4} [ 51.316896][ T3591] 1 lock held by syz-executor342/3591: [ 51.322335][ T3591] #0: ffffffff8c941f98 (css_set_lock){....}-{2:2}, at: cgroup_get_from_path+0x24/0x290 [ 51.332075][ T3591] stack backtrace: [ 51.335794][ T3591] CPU: 1 PID: 3591 Comm: syz-executor342 Tainted: G W 5.15.98-syzkaller #0 [ 51.345674][ T3591] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 51.355721][ T3591] Call Trace: [ 51.358990][ T3591] [ 51.361912][ T3591] dump_stack_lvl+0x1e3/0x2cb [ 51.366582][ T3591] ? io_uring_drop_tctx_refs+0x19d/0x19d [ 51.372211][ T3591] ? panic+0x84d/0x84d [ 51.376273][ T3591] __lock_acquire+0x14f5/0x1ff0 [ 51.381120][ T3591] lock_acquire+0x1f6/0x560 [ 51.385621][ T3591] ? kernfs_walk_and_get_ns+0x7e/0x2b0 [ 51.391069][ T3591] ? read_lock_is_recursive+0x10/0x10 [ 51.396429][ T3591] ? __might_sleep+0xc0/0xc0 [ 51.401009][ T3591] ? rcu_lock_release+0x5/0x20 [ 51.405775][ T3591] down_read+0x3b/0x50 [ 51.409833][ T3591] ? kernfs_walk_and_get_ns+0x7e/0x2b0 [ 51.415298][ T3591] kernfs_walk_and_get_ns+0x7e/0x2b0 [ 51.420573][ T3591] ? kernfs_find_ns+0x500/0x500 [ 51.425416][ T3591] ? current_cgns_cgroup_from_root+0x277/0x2c0 [ 51.431558][ T3591] cgroup_get_from_path+0x5c/0x290 [ 51.436674][ T3591] cgroup_mt_check_v1+0x1a0/0x2b0 [ 51.441699][ T3591] xt_check_match+0x363/0xa30 [ 51.446363][ T3591] ? xt_find_match+0x6d/0x200 [ 51.451025][ T3591] ? mutex_unlock+0x10/0x10 [ 51.455512][ T3591] ? xt_check_proc_name+0x110/0x110 [ 51.460700][ T3591] ? pcpu_alloc+0x10fb/0x1900 [ 51.465368][ T3591] ? xt_find_match+0x1cf/0x200 [ 51.470133][ T3591] translate_table+0x1669/0x2320 [ 51.475066][ T3591] ? ip6t_register_table+0x6b0/0x6b0 [ 51.480336][ T3591] ? __might_fault+0xb8/0x110 [ 51.484996][ T3591] ? __might_sleep+0xc0/0xc0 [ 51.489597][ T3591] ? __lock_acquire+0x1ff0/0x1ff0 [ 51.494624][ T3591] ? __might_fault+0xb4/0x110 [ 51.499303][ T3591] do_ip6t_set_ctl+0x2cf3/0x3f50 [ 51.504240][ T3591] ? rcu_read_lock_sched_held+0x89/0x130 [ 51.509874][ T3591] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 51.516297][ T3591] ? read_lock_is_recursive+0x10/0x10 [ 51.521659][ T3591] ? cleanup_entry+0x4d0/0x4d0 [ 51.526419][ T3591] ? nf_setsockopt+0x238/0x2b0 [ 51.531174][ T3591] ? __mutex_lock_common+0x444/0x25a0 [ 51.536534][ T3591] ? __mutex_unlock_slowpath+0x218/0x750 [ 51.542154][ T3591] ? nf_setsockopt+0x38/0x2b0 [ 51.546818][ T3591] ? print_irqtrace_events+0x210/0x210 [ 51.552264][ T3591] ? mutex_unlock+0x10/0x10 [ 51.556763][ T3591] ? lockdep_hardirqs_on+0x94/0x130 [ 51.561948][ T3591] ? __local_bh_enable_ip+0x164/0x1f0 [ 51.567314][ T3591] nf_setsockopt+0x28a/0x2b0 [ 51.571980][ T3591] ipv6_setsockopt+0x2f5c/0x43c0 [ 51.577016][ T3591] ? reacquire_held_locks+0x660/0x660 [ 51.582398][ T3591] ? ipv6_update_options+0x3f0/0x3f0 [ 51.587680][ T3591] ? mark_lock+0x98/0x340 [ 51.592011][ T3591] ? mark_lock+0x98/0x340 [ 51.596424][ T3591] ? validate_chain+0x112/0x58b0 [ 51.601359][ T3591] ? rcu_read_lock_sched_held+0x89/0x130 [ 51.606984][ T3591] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 51.612973][ T3591] ? reacquire_held_locks+0x660/0x660 [ 51.618351][ T3591] ? aa_label_sk_perm+0x453/0x630 [ 51.623383][ T3591] ? aa_sk_perm+0x9d0/0x9d0 [ 51.627883][ T3591] ? do_raw_spin_unlock+0x137/0x8b0 [ 51.633079][ T3591] ? __might_sleep+0xc0/0xc0 [ 51.637670][ T3591] ? __lock_acquire+0x1295/0x1ff0 [ 51.642691][ T3591] ? aa_sk_perm+0x89b/0x9d0 [ 51.647221][ T3591] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 51.653324][ T3591] ? aa_af_perm+0x350/0x350 [ 51.657841][ T3591] ? aa_sock_opt_perm+0x79/0x110 [ 51.662774][ T3591] ? udpv6_setsockopt+0x77/0xa0 [ 51.667632][ T3591] ? sock_common_recvmsg+0x240/0x240 [ 51.672926][ T3591] __sys_setsockopt+0x57e/0x990 [ 51.677776][ T3591] ? __ia32_sys_recv+0xb0/0xb0 [ 51.682544][ T3591] ? syscall_enter_from_user_mode+0x2e/0x290 [ 51.688534][ T3591] __x64_sys_setsockopt+0xb1/0xc0 [ 51.693562][ T3591] do_syscall_64+0x3d/0xb0 [ 51.697981][ T3591] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 51.703873][ T3591] RIP: 0033:0x7fd36ebc4fd9 [ 51.708293][ T3591] Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 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 c0 ff ff ff f7 d8 64 89 01 48 [ 51.727899][ T3591] RSP: 002b:00007ffdfa266958 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 51.736310][ T3591] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd36ebc4fd9 [ 51.744285][ T3591] RDX: 0000000000000040 RSI: 0000000000000029 RDI: 0000000000000003 [ 51.752251][ T3591] RBP: 00007fd36eb88fc0 R08: 0000000000000001 R09: 0000000000000000 executing program [ 51.7