watchdog: BUG: soft lockup - CPU#0 stuck for 246s! [syz-executor.3:12813] Modules linked in: CPU: 0 PID: 12813 Comm: syz-executor.3 Not tainted 5.15.149-syzkaller-00131-g79bd336c7a94 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline] RIP: 0010:arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline] RIP: 0010:kvm_wait+0x147/0x180 arch/x86/kernel/kvm.c:918 Code: 4c 89 e8 48 c1 e8 03 42 0f b6 04 20 84 c0 44 8b 74 24 1c 75 34 41 0f b6 45 00 44 38 f0 75 10 66 90 0f 00 2d cb 03 f3 03 fb f4 24 ff ff ff fb e9 1e ff ff ff 44 89 e9 80 e1 07 38 c1 7c a3 4c RSP: 0018:ffffc900000074c0 EFLAGS: 00000246 RAX: 0000000000000001 RBX: 1ffff92000000e9c RCX: 1ffffffff0d1aa9c RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffff8881f7038ad4 RBP: ffffc90000007570 R08: dffffc0000000000 R09: ffffed103ee0715b R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff8881f7038ad4 R14: 0000000000000001 R15: 1ffff92000000ea0 FS: 0000555556cef480(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000129011000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: pv_wait arch/x86/include/asm/paravirt.h:597 [inline] pv_wait_node kernel/locking/qspinlock_paravirt.h:325 [inline] __pv_queued_spin_lock_slowpath+0x41b/0xc40 kernel/locking/qspinlock.c:473 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:585 [inline] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline] queued_spin_lock include/asm-generic/qspinlock.h:85 [inline] do_raw_spin_lock include/linux/spinlock.h:187 [inline] __raw_spin_lock_bh include/linux/spinlock_api_smp.h:136 [inline] _raw_spin_lock_bh+0x139/0x1b0 kernel/locking/spinlock.c:178 sock_hash_delete_elem+0xb1/0x2f0 net/core/sock_map.c:937 bpf_prog_2c29ac5cdc6b1842+0x3a/0x270 bpf_dispatcher_nop_func include/linux/bpf.h:785 [inline] __bpf_prog_run include/linux/filter.h:625 [inline] bpf_prog_run include/linux/filter.h:632 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:1880 [inline] bpf_trace_run4+0x13f/0x270 kernel/trace/bpf_trace.c:1919 __bpf_trace_mm_page_alloc+0xbf/0xf0 include/trace/events/kmem.h:201 trace_mm_page_alloc include/trace/events/kmem.h:201 [inline] __alloc_pages+0x3cb/0x8f0 mm/page_alloc.c:5798 allocate_slab mm/slub.c:1932 [inline] new_slab+0x9a/0x4e0 mm/slub.c:1995 ___slab_alloc+0x39e/0x830 mm/slub.c:3028 __slab_alloc+0x4a/0x90 mm/slub.c:3115 slab_alloc_node mm/slub.c:3206 [inline] slab_alloc mm/slub.c:3248 [inline] kmem_cache_alloc+0x134/0x200 mm/slub.c:3253 kmem_cache_alloc_node include/linux/slab.h:474 [inline] __alloc_skb+0xbe/0x550 net/core/skbuff.c:416 alloc_skb include/linux/skbuff.h:1183 [inline] ndisc_alloc_skb+0xf3/0x2d0 net/ipv6/ndisc.c:421 ndisc_send_rs+0x26c/0x6a0 net/ipv6/ndisc.c:687 addrconf_rs_timer+0x2d1/0x600 net/ipv6/addrconf.c:3962 call_timer_fn+0x3b/0x2d0 kernel/time/timer.c:1427 expire_timers kernel/time/timer.c:1472 [inline] __run_timers+0x72a/0xa10 kernel/time/timer.c:1743 run_timer_softirq+0x69/0xf0 kernel/time/timer.c:1756 __do_softirq+0x26d/0x5bf kernel/softirq.c:565 invoke_softirq kernel/softirq.c:425 [inline] __irq_exit_rcu+0x50/0xf0 kernel/softirq.c:648 irq_exit_rcu+0x9/0x10 kernel/softirq.c:660 sysvec_apic_timer_interrupt+0x9a/0xc0 arch/x86/kernel/apic/apic.c:1096 asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:638 RIP: 0010:finish_task_switch+0x16f/0x7b0 kernel/sched/core.c:5024 Code: 74 08 4c 89 ff e8 91 66 65 00 49 8b 1f 48 85 db 4c 8b 6d c0 0f 85 ce 00 00 00 4c 89 e7 e8 e9 1f 7c 03 fb 49 8d 9d 38 0b 00 00 <48> 89 d8 48 c1 e8 03 49 be 00 00 00 00 00 fc ff df 42 0f b6 04 30 RSP: 0018:ffffc90000de7a40 EFLAGS: 00000282 RAX: 0000000080000001 RBX: ffff88810cc8b2b8 RCX: 0000000000000002 RDX: 0000000000000001 RSI: ffffffff85830e40 RDI: 0000000000000001 RBP: ffffc90000de7a90 R08: dffffc0000000000 R09: fffffbfff0d03a51 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f70378c0 R13: ffff88810cc8a780 R14: 1ffff1103ee07081 R15: ffff8881f7038408 context_switch kernel/sched/core.c:5155 [inline] __schedule+0xcd4/0x1590 kernel/sched/core.c:6512 schedule+0x11f/0x1e0 kernel/sched/core.c:6595 freezable_schedule include/linux/freezer.h:197 [inline] do_nanosleep+0x181/0x6a0 kernel/time/hrtimer.c:2044 hrtimer_nanosleep+0x1c5/0x3f0 kernel/time/hrtimer.c:2097 common_nsleep+0x91/0xb0 kernel/time/posix-timers.c:1267 __do_sys_clock_nanosleep kernel/time/posix-timers.c:1308 [inline] __se_sys_clock_nanosleep+0x323/0x3b0 kernel/time/posix-timers.c:1285 __x64_sys_clock_nanosleep+0x9b/0xb0 kernel/time/posix-timers.c:1285 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7fde24d73375 Code: 24 0c 89 3c 24 48 89 4c 24 18 e8 f6 b9 ff ff 4c 8b 54 24 18 48 8b 54 24 10 41 89 c0 8b 74 24 0c 8b 3c 24 b8 e6 00 00 00 0f 05 <44> 89 c7 48 89 04 24 e8 4f ba ff ff 48 8b 04 24 48 83 c4 28 f7 d8 RSP: 002b:00007ffd36ecc520 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6 RAX: ffffffffffffffda RBX: 00007fde24e7ef80 RCX: 00007fde24d73375 RDX: 00007ffd36ecc560 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007fde24e80980 R08: 0000000000000000 R09: 00007ffd36f1a0b0 R10: 0000000000000000 R11: 0000000000000293 R12: 000000000004b5be R13: 00007fde24e7ef8c R14: 0000000000000032 R15: 00007fde24e80980 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 12814 Comm: syz-executor.3 Not tainted 5.15.149-syzkaller-00131-g79bd336c7a94 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 RIP: 0010:native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline] RIP: 0010:arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline] RIP: 0010:kvm_wait+0x147/0x180 arch/x86/kernel/kvm.c:918 Code: 4c 89 e8 48 c1 e8 03 42 0f b6 04 20 84 c0 44 8b 74 24 1c 75 34 41 0f b6 45 00 44 38 f0 75 10 66 90 0f 00 2d cb 03 f3 03 fb f4 24 ff ff ff fb e9 1e ff ff ff 44 89 e9 80 e1 07 38 c1 7c a3 4c RSP: 0018:ffffc900012460e0 EFLAGS: 00000246 RAX: 0000000000000003 RBX: 1ffff92000248c20 RCX: ffffffff8154fa3f RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffff88810c048ad8 RBP: ffffc90001246190 R08: dffffc0000000000 R09: ffffed102180915c R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff88810c048ad8 R14: 0000000000000003 R15: 1ffff92000248c24 FS: 00007fde240c26c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000129011000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: pv_wait arch/x86/include/asm/paravirt.h:597 [inline] pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:470 [inline] __pv_queued_spin_lock_slowpath+0x6bc/0xc40 kernel/locking/qspinlock.c:508 pv_queued_spin_lock_slowpath arch/x86/include/asm/paravirt.h:585 [inline] queued_spin_lock_slowpath arch/x86/include/asm/qspinlock.h:51 [inline] queued_spin_lock include/asm-generic/qspinlock.h:85 [inline] do_raw_spin_lock include/linux/spinlock.h:187 [inline] __raw_spin_lock_bh include/linux/spinlock_api_smp.h:136 [inline] _raw_spin_lock_bh+0x139/0x1b0 kernel/locking/spinlock.c:178 sock_hash_delete_elem+0xb1/0x2f0 net/core/sock_map.c:937 bpf_prog_2c29ac5cdc6b1842+0x3a/0x270 bpf_dispatcher_nop_func include/linux/bpf.h:785 [inline] __bpf_prog_run include/linux/filter.h:625 [inline] bpf_prog_run include/linux/filter.h:632 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:1880 [inline] bpf_trace_run4+0x13f/0x270 kernel/trace/bpf_trace.c:1919 __bpf_trace_mm_page_alloc+0xbf/0xf0 include/trace/events/kmem.h:201 trace_mm_page_alloc include/trace/events/kmem.h:201 [inline] __alloc_pages+0x3cb/0x8f0 mm/page_alloc.c:5798 __alloc_pages_node include/linux/gfp.h:591 [inline] alloc_pages_node include/linux/gfp.h:605 [inline] alloc_pages include/linux/gfp.h:618 [inline] __stack_depot_save+0x38d/0x470 lib/stackdepot.c:326 kasan_save_stack mm/kasan/common.c:39 [inline] kasan_set_track+0x5d/0x70 mm/kasan/common.c:45 kasan_set_free_info+0x23/0x40 mm/kasan/generic.c:370 ____kasan_slab_free+0x126/0x160 mm/kasan/common.c:365 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:373 kasan_slab_free include/linux/kasan.h:193 [inline] slab_free_hook mm/slub.c:1723 [inline] slab_free_freelist_hook+0xbd/0x190 mm/slub.c:1749 slab_free mm/slub.c:3519 [inline] kfree+0xc8/0x220 mm/slub.c:4579 sk_psock_free_link include/linux/skmsg.h:420 [inline] sock_map_del_link net/core/sock_map.c:160 [inline] sock_map_unref+0x352/0x4d0 net/core/sock_map.c:182 sock_hash_delete_elem+0x274/0x2f0 net/core/sock_map.c:941 bpf_prog_2c29ac5cdc6b1842+0x3a/0x270 bpf_dispatcher_nop_func include/linux/bpf.h:785 [inline] __bpf_prog_run include/linux/filter.h:625 [inline] bpf_prog_run include/linux/filter.h:632 [inline] __bpf_trace_run kernel/trace/bpf_trace.c:1880 [inline] bpf_trace_run4+0x13f/0x270 kernel/trace/bpf_trace.c:1919 __bpf_trace_mm_page_alloc+0xbf/0xf0 include/trace/events/kmem.h:201 trace_mm_page_alloc include/trace/events/kmem.h:201 [inline] __alloc_pages+0x3cb/0x8f0 mm/page_alloc.c:5798 __alloc_pages_node include/linux/gfp.h:591 [inline] alloc_pages_node include/linux/gfp.h:605 [inline] alloc_pages include/linux/gfp.h:618 [inline] __stack_depot_save+0x38d/0x470 lib/stackdepot.c:326 stack_depot_save+0xe/0x10 lib/stackdepot.c:383 save_stack+0x104/0x1e0 mm/page_owner.c:140 __set_page_owner+0x28/0x2e0 mm/page_owner.c:200 set_page_owner include/linux/page_owner.h:33 [inline] post_alloc_hook+0x1a3/0x1b0 mm/page_alloc.c:2604 prep_new_page+0x1b/0x110 mm/page_alloc.c:2610 get_page_from_freelist+0x3550/0x35d0 mm/page_alloc.c:4484 __alloc_pages+0x27e/0x8f0 mm/page_alloc.c:5776 __alloc_pages_node include/linux/gfp.h:591 [inline] alloc_pages_node include/linux/gfp.h:605 [inline] alloc_pages include/linux/gfp.h:618 [inline] __stack_depot_save+0x38d/0x470 lib/stackdepot.c:326 kasan_save_stack mm/kasan/common.c:39 [inline] kasan_set_track mm/kasan/common.c:45 [inline] set_alloc_info mm/kasan/common.c:433 [inline] ____kasan_kmalloc+0xed/0x110 mm/kasan/common.c:512 __kasan_kmalloc+0x9/0x10 mm/kasan/common.c:521 kasan_kmalloc include/linux/kasan.h:227 [inline] __kmalloc+0x13a/0x270 mm/slub.c:4427 __kmalloc_node include/linux/slab.h:469 [inline] kmalloc_node include/linux/slab.h:626 [inline] kvmalloc_node+0x1f0/0x4d0 mm/util.c:628 kvmalloc include/linux/mm.h:851 [inline] seq_buf_alloc fs/seq_file.c:38 [inline] seq_read_iter+0x1ff/0xd00 fs/seq_file.c:210 proc_reg_read_iter+0x1ba/0x290 fs/proc/inode.c:300 call_read_iter include/linux/fs.h:2196 [inline] generic_file_splice_read+0x4aa/0x780 fs/splice.c:311 do_splice_to fs/splice.c:796 [inline] splice_direct_to_actor+0x439/0xbe0 fs/splice.c:870 do_splice_direct+0x27f/0x3c0 fs/splice.c:979 do_sendfile+0x616/0xfe0 fs/read_write.c:1249 __do_sys_sendfile64 fs/read_write.c:1317 [inline] __se_sys_sendfile64 fs/read_write.c:1303 [inline] __x64_sys_sendfile64+0x1ce/0x230 fs/read_write.c:1303 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7fde24d47f69 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fde240c20c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007fde24e7ef80 RCX: 00007fde24d47f69 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000003 RBP: 00007fde24da56fe R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000f2a R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007fde24e7ef80 R15: 00007ffd36ecc4a8