RBP: 000000c0009db8d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 000000c000233e10 R13: 000000000000226f R14: 000000c00047eea0 R15: 0000000000000053 watchdog: BUG: soft lockup - CPU#1 stuck for 246s! [syz-fuzzer:317] Modules linked in: CPU: 1 PID: 317 Comm: syz-fuzzer Not tainted 5.15.148-syzkaller-00013-gad06eaf051cd #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 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 5b 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:ffffc900051d6f80 EFLAGS: 00000246 RAX: 0000000000000003 RBX: 1ffff92000a3adf4 RCX: ffffffff8154f88f RDX: dffffc0000000000 RSI: 0000000000000003 RDI: ffff88811507d4d8 RBP: ffffc900051d7030 R08: dffffc0000000000 R09: ffffed1022a0fa9c R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff88811507d4d8 R14: 0000000000000003 R15: 1ffff92000a3adf8 FS: 000000c000981090(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005555560f0818 CR3: 000000011f2f7000 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/0xa2c 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_run2+0xec/0x210 kernel/trace/bpf_trace.c:1920 __bpf_trace_kfree+0x6f/0x90 include/trace/events/kmem.h:118 trace_kfree include/trace/events/kmem.h:118 [inline] kfree+0x1f3/0x220 mm/slub.c:4569 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/0xa2c 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_run2+0xec/0x210 kernel/trace/bpf_trace.c:1920 __bpf_trace_kfree+0x6f/0x90 include/trace/events/kmem.h:118 trace_kfree include/trace/events/kmem.h:118 [inline] kfree+0x1f3/0x220 mm/slub.c:4569 skb_free_head net/core/skbuff.c:656 [inline] skb_release_data+0x8a9/0xa80 net/core/skbuff.c:678 skb_release_all net/core/skbuff.c:743 [inline] __kfree_skb+0x50/0x70 net/core/skbuff.c:757 sk_eat_skb include/net/sock.h:2724 [inline] tcp_recvmsg_locked+0x17fd/0x2890 net/ipv4/tcp.c:2505 tcp_recvmsg+0x24e/0x7f0 net/ipv4/tcp.c:2551 inet_recvmsg+0x158/0x500 net/ipv4/af_inet.c:858 sock_recvmsg_nosec net/socket.c:966 [inline] sock_recvmsg net/socket.c:984 [inline] sock_read_iter+0x353/0x480 net/socket.c:1057 call_read_iter include/linux/fs.h:2196 [inline] new_sync_read fs/read_write.c:404 [inline] vfs_read+0xa7e/0xd40 fs/read_write.c:485 ksys_read+0x199/0x2c0 fs/read_write.c:623 __do_sys_read fs/read_write.c:633 [inline] __se_sys_read fs/read_write.c:631 [inline] __x64_sys_read+0x7b/0x90 fs/read_write.c:631 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:000000c0009db890 EFLAGS: 00000212 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 000000000040720e RDX: 0000000000001000 RSI: 000000c00098e000 RDI: 0000000000000007 RBP: 000000c0009db8d0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000212 R12: 000000c000233e10 R13: 000000000000226f R14: 000000c00047eea0 R15: 0000000000000053 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 10381 Comm: syz-executor.4 Not tainted 5.15.148-syzkaller-00013-gad06eaf051cd #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 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 5b 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:ffffc900012df500 EFLAGS: 00000246 RAX: 0000000000000001 RBX: 1ffff9200025bea4 RCX: 1ffffffff0d1aa9c RDX: 0000000000000001 RSI: 0000000000000001 RDI: ffff8881f7037ed4 RBP: ffffc900012df5b0 R08: dffffc0000000000 R09: ffffed103ee06fdb R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff8881f7037ed4 R14: 0000000000000001 R15: 1ffff9200025bea8 FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2bc22000 CR3: 000000011f2f7000 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/0xa2c 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_run2+0xec/0x210 kernel/trace/bpf_trace.c:1920 __bpf_trace_kfree+0x6f/0x90 include/trace/events/kmem.h:118 trace_kfree include/trace/events/kmem.h:118 [inline] kfree+0x1f3/0x220 mm/slub.c:4569 kvfree+0x35/0x40 mm/util.c:664 __free_fdtable fs/file.c:36 [inline] put_files_struct+0x284/0x320 fs/file.c:451 exit_files+0x80/0xa0 fs/file.c:464 do_exit+0xc11/0x2ca0 kernel/exit.c:873 do_group_exit+0x141/0x310 kernel/exit.c:1000 get_signal+0x7a3/0x1630 kernel/signal.c:2896 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: 0033:0x7fc1c11b9ea9 Code: Unable to access opcode bytes at RIP 0x7fc1c11b9e7f. RSP: 002b:00007fc1bff2d178 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007fc1c12e7f88 RCX: 00007fc1c11b9ea9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fc1c12e7f88 RBP: 00007fc1c12e7f80 R08: 00007fc1bff2d6c0 R09: 00007fc1bff2d6c0 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fc1c12e7f8c R13: 000000000000000b R14: 00007ffe1cb1ffa0 R15: 00007ffe1cb20088