RBP: 000000c000970d40 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 000000c000970e80 R13: 0000000000000001 R14: 000000c0000061a0 R15: 0000000000000010 watchdog: BUG: soft lockup - CPU#0 stuck for 222s! [syz-fuzzer:295] Modules linked in: CPU: 0 PID: 295 Comm: syz-fuzzer Tainted: G W 5.15.148-syzkaller-00718-g993bed180178 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:pv_wait_head_or_lock kernel/locking/qspinlock_paravirt.h:434 [inline] RIP: 0010:__pv_queued_spin_lock_slowpath+0x5ba/0xc40 kernel/locking/qspinlock.c:508 Code: 00 00 49 89 dc c6 03 00 48 8b 44 24 10 0f b6 04 10 84 c0 0f 85 48 01 00 00 48 8b 44 24 08 c6 00 01 bb 00 80 ff ff eb 06 f3 90 c3 74 5e 41 0f b6 44 15 00 84 c0 75 36 41 80 3f 00 75 ea 4c 89 RSP: 0018:ffffc90000987820 EFLAGS: 00000206 RAX: 0000000000000000 RBX: 00000000ffffd199 RCX: ffffffff8154f88f RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffff8881183e0088 RBP: ffffc90000987910 R08: dffffc0000000000 R09: ffffed102307c012 R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8881f7037ed4 R13: 1ffff1102307c011 R14: 1ffff1103ee00001 R15: ffff8881183e0088 FS: 000000c0004f4c90(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b32123000 CR3: 0000000119db2000 CR4: 00000000003506b0 Call Trace: 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 spin_lock_bh include/linux/spinlock.h:368 [inline] lock_sock_nested+0x97/0x300 net/core/sock.c:3258 lock_sock include/net/sock.h:1676 [inline] tcp_sendmsg+0x21/0x50 net/ipv4/tcp.c:1454 inet_sendmsg+0xa1/0xc0 net/ipv4/af_inet.c:827 sock_sendmsg_nosec net/socket.c:704 [inline] __sock_sendmsg net/socket.c:716 [inline] sock_write_iter+0x39b/0x530 net/socket.c:1079 call_write_iter include/linux/fs.h:2202 [inline] new_sync_write fs/read_write.c:507 [inline] vfs_write+0xd5d/0x1110 fs/read_write.c:594 ksys_write+0x199/0x2c0 fs/read_write.c:647 __do_sys_write fs/read_write.c:659 [inline] __se_sys_write fs/read_write.c:656 [inline] __x64_sys_write+0x7b/0x90 fs/read_write.c:656 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: 0033:0x40720e Code: 48 83 ec 38 e8 13 00 00 00 48 83 c4 38 5d c3 cc cc cc cc cc cc cc cc cc cc cc cc cc 49 89 f2 48 89 fa 48 89 ce 48 89 df 0f 05 <48> 3d 01 f0 ff ff 76 15 48 f7 d8 48 89 c1 48 c7 c0 ff ff ff ff 48 RSP: 002b:000000c000970d00 EFLAGS: 00000212 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 000000000040720e RDX: 00000000000000f0 RSI: 000000c000430200 RDI: 0000000000000007 RBP: 000000c000970d40 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 000000c000970e80 R13: 0000000000000001 R14: 000000c0000061a0 R15: 0000000000000010 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 355 Comm: syz-fuzzer Tainted: G W 5.15.148-syzkaller-00718-g993bed180178 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:native_halt arch/x86/include/asm/irqflags.h:57 [inline] RIP: 0010:halt arch/x86/include/asm/irqflags.h:98 [inline] RIP: 0010:kvm_wait+0x117/0x180 arch/x86/kernel/kvm.c:912 Code: 48 c1 e8 03 42 0f b6 04 20 84 c0 44 8b 74 24 1c 75 53 41 0f b6 45 00 44 38 f0 0f 85 63 ff ff ff 66 90 0f 00 2d 8a 03 f3 03 f4 54 ff ff ff fa 4c 89 e8 48 c1 e8 03 42 0f b6 04 20 84 c0 44 8b RSP: 0018:ffffc900001cf5e0 EFLAGS: 00000046 RAX: 0000000000000003 RBX: 1ffff92000039ec0 RCX: ffffffff8154f88f RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffff88810dcc3480 RBP: ffffc900001cf690 R08: dffffc0000000000 R09: ffffed1021b98691 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff88810dcc3480 R14: 0000000000000003 R15: 1ffff92000039ec4 FS: 000000c000fd2c90(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f522000 CR3: 0000000119db2000 CR4: 00000000003506a0 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_flags include/linux/spinlock.h:199 [inline] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:119 [inline] _raw_spin_lock_irqsave+0x1a0/0x210 kernel/locking/spinlock.c:162 __lock_task_sighand kernel/signal.c:1413 [inline] lock_task_sighand include/linux/sched/signal.h:710 [inline] do_send_sig_info+0x7e/0x230 kernel/signal.c:1302 group_send_sig_info+0x113/0x460 kernel/signal.c:1451 bpf_send_signal_common+0x2d8/0x420 kernel/trace/bpf_trace.c:827 ____bpf_send_signal kernel/trace/bpf_trace.c:832 [inline] bpf_send_signal+0x19/0x20 kernel/trace/bpf_trace.c:830 bpf_prog_8cc4ff36b5985b6a+0x15/0x8b8 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:1883 [inline] bpf_trace_run3+0x11e/0x250 kernel/trace/bpf_trace.c:1921 __bpf_trace_kmem_cache_free+0x99/0xc0 include/trace/events/kmem.h:138 __traceiter_kmem_cache_free+0x32/0x50 include/trace/events/kmem.h:138 trace_kmem_cache_free include/trace/events/kmem.h:138 [inline] kmem_cache_free+0x2c3/0x2e0 mm/slub.c:3536 kfree_skbmem+0x104/0x170 __kfree_skb+0x58/0x70 net/core/skbuff.c:758 sk_wmem_free_skb include/net/sock.h:1634 [inline] tcp_rtx_queue_unlink_and_free+0x203/0x720 include/net/tcp.h:1907 tcp_clean_rtx_queue net/ipv4/tcp_input.c:3343 [inline] tcp_ack+0x23e0/0x68a0 net/ipv4/tcp_input.c:3900 tcp_rcv_established+0xcd6/0x1ac0 net/ipv4/tcp_input.c:5904 tcp_v4_do_rcv+0x3d7/0xa00 net/ipv4/tcp_ipv4.c:1722 tcp_v4_rcv+0x23dd/0x2a70 net/ipv4/tcp_ipv4.c:2125 ip_protocol_deliver_rcu+0x32f/0x710 net/ipv4/ip_input.c:204 ip_local_deliver_finish net/ipv4/ip_input.c:231 [inline] NF_HOOK include/linux/netfilter.h:305 [inline] ip_local_deliver+0x2c6/0x590 net/ipv4/ip_input.c:252 dst_input include/net/dst.h:454 [inline] ip_sublist_rcv_finish net/ipv4/ip_input.c:577 [inline] ip_list_rcv_finish net/ipv4/ip_input.c:628 [inline] ip_sublist_rcv+0x7e2/0x980 net/ipv4/ip_input.c:636 ip_list_rcv+0x422/0x470 net/ipv4/ip_input.c:671 __netif_receive_skb_list_ptype net/core/dev.c:5535 [inline] __netif_receive_skb_list_core+0x6b1/0x890 net/core/dev.c:5583 __netif_receive_skb_list net/core/dev.c:5635 [inline] netif_receive_skb_list_internal+0x967/0xcc0 net/core/dev.c:5726 gro_normal_list net/core/dev.c:5880 [inline] napi_complete_done+0x344/0x770 net/core/dev.c:6618 virtqueue_napi_complete drivers/net/virtio_net.c:357 [inline] virtnet_poll+0xbee/0x1260 drivers/net/virtio_net.c:1592 __napi_poll+0xc4/0x5a0 net/core/dev.c:7042 napi_poll net/core/dev.c:7109 [inline] net_rx_action+0x47d/0xc50 net/core/dev.c:7196 __do_softirq+0x26d/0x5bf kernel/softirq.c:565 do_softirq+0xf6/0x150 kernel/softirq.c:452 __local_bh_enable_ip+0x75/0x80 kernel/softirq.c:379 __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:176 [inline] _raw_spin_unlock_bh+0x51/0x60 kernel/locking/spinlock.c:210 __sock_map_delete net/core/sock_map.c:426 [inline] sock_map_delete_elem+0xcb/0x130 net/core/sock_map.c:448 bpf_prog_2c29ac5cdc6b1842+0x3a/0xc48 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:1883 [inline] bpf_trace_run3+0x11e/0x250 kernel/trace/bpf_trace.c:1921 __bpf_trace_kmem_cache_free+0x99/0xc0 include/trace/events/kmem.h:138 __traceiter_kmem_cache_free+0x32/0x50 include/trace/events/kmem.h:138 trace_kmem_cache_free include/trace/events/kmem.h:138 [inline] kmem_cache_free+0x2c3/0x2e0 mm/slub.c:3536 __sigqueue_free kernel/signal.c:462 [inline] collect_signal kernel/signal.c:601 [inline] __dequeue_signal+0x4f8/0x600 kernel/signal.c:623 dequeue_signal+0x10c/0x520 kernel/signal.c:643 get_signal+0x7cf/0x1630 kernel/signal.c:2777 arch_do_signal_or_restart+0xbd/0x1680 arch/x86/kernel/signal.c:867 handle_signal_work kernel/entry/common.c:148 [inline] exit_to_user_mode_loop+0xa0/0xe0 kernel/entry/common.c:172 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:208 __syscall_exit_to_user_mode_work kernel/entry/common.c:290 [inline] syscall_exit_to_user_mode+0x26/0x160 kernel/entry/common.c:301 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x472463 Code: 24 20 c3 cc cc cc cc 48 8b 7c 24 08 8b 74 24 10 8b 54 24 14 4c 8b 54 24 18 4c 8b 44 24 20 44 8b 4c 24 28 b8 ca 00 00 00 0f 05 <89> 44 24 30 c3 cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc RSP: 002b:000000c000af1d70 EFLAGS: 00000286 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 0000000000000000 RCX: 0000000000472463 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000c000fd2d48 RBP: 000000c000af1db8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000286 R12: 000000c000af1dc8 R13: 0000000000000005 R14: 000000c0004889c0 R15: 0000000000000007