UDPLite6: UDP-Lite is deprecated and scheduled to be removed in 2025, please contact the netdev mailing list watchdog: BUG: soft lockup - CPU#0 stuck for 25s! [syz-executor.6:6576] Modules linked in: irq event stamp: 3552545 hardirqs last enabled at (3552544): [<ffffffff8484a78b>] irqentry_exit+0x3b/0x90 hardirqs last disabled at (3552545): [<ffffffff8484914f>] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (3543720): [<ffffffff811a977c>] handle_softirqs+0x50c/0x770 softirqs last disabled at (3543723): [<ffffffff811a9b14>] __irq_exit_rcu+0xc4/0x100 CPU: 0 UID: 0 PID: 6576 Comm: syz-executor.6 Not tainted 6.12.0-rc7-next-20241115 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__orc_find+0x6f/0xf0 Code: 77 4d 4c 89 e0 48 29 e8 48 89 c2 48 c1 e8 3f 48 c1 fa 02 48 01 d0 48 d1 f8 48 8d 5c 85 00 48 89 d8 48 c1 e8 03 42 0f b6 14 38 <48> 89 d8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 50 48 63 03 48 01 RSP: 0018:ffff88806ce08ca0 EFLAGS: 00000217 RAX: 1ffffffff0ce7cde RBX: ffffffff8673e6f4 RCX: ffffffff8484431b RDX: 0000000000000000 RSI: ffffffff86bf02e0 RDI: ffffffff8673e6ec RBP: ffffffff8673e6ec R08: ffffffff86bf02e0 R09: ffff88806ce08d98 R10: 000000000003c001 R11: 00000000000c19a4 R12: ffffffff8673e6fc R13: ffffffff8673e6ec R14: ffffffff8673e6ec R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555566388c98 CR3: 0000000025da6000 CR4: 0000000000350ef0 Call Trace: <IRQ> unwind_next_frame+0x2b7/0x2490 arch_stack_walk+0x87/0xf0 stack_trace_save+0x8f/0xc0 kasan_save_stack+0x24/0x50 kasan_save_track+0x14/0x30 __kasan_slab_alloc+0x59/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 __alloc_object+0x2f/0x270 __create_object+0x1d/0x80 kmem_cache_alloc_node_noprof+0x311/0x3e0 __alloc_skb+0x2ad/0x370 __tcp_send_ack.part.0+0x67/0x650 tcp_send_ack+0x81/0xa0 __tcp_ack_snd_check+0x188/0xc20 tcp_rcv_established+0x8ab/0x2060 tcp_v4_do_rcv+0x5cf/0xa50 tcp_v4_rcv+0x31a0/0x42d0 ip_protocol_deliver_rcu+0xba/0x480 ip_local_deliver_finish+0x2f0/0x500 ip_local_deliver+0x1a3/0x200 ip_sublist_rcv_finish+0x274/0x570 ip_list_rcv_finish.constprop.0+0x3fe/0x580 ip_list_rcv+0x2c5/0x3e0 __netif_receive_skb_list_core+0x695/0x8d0 netif_receive_skb_list_internal+0x6c2/0xc90 napi_complete_done+0x219/0x830 e1000_clean+0x9ae/0x2540 __napi_poll+0xb9/0x540 net_rx_action+0xa06/0xe00 handle_softirqs+0x1b1/0x770 __irq_exit_rcu+0xc4/0x100 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x70/0x80 </IRQ> <TASK> asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:kasan_check_range+0x14b/0x1b0 Code: 8d 1c 2c eb 0c 48 83 c2 01 4c 89 d8 4c 39 da 74 0e 80 3a 00 74 ef 49 8d 04 2c 48 85 d2 75 b0 48 89 da 48 29 c2 e9 4c ff ff ff <48> 85 d2 74 b6 48 01 ea eb 09 48 83 c0 01 48 39 d0 74 a8 80 38 00 RSP: 0018:ffff888040a4f698 EFLAGS: 00000283 RAX: fffffbfff0c7f472 RBX: fffffbfff0c7f473 RCX: ffffffff812f2906 RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffffff863fa390 RBP: fffffbfff0c7f472 R08: 0000000000000000 R09: fffffbfff0c7f472 R10: ffffffff863fa397 R11: 00000000000c3893 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000002 R15: 000000000003a6cc trace_lock_acquire+0x36/0x1b0 lock_acquire+0x32/0xc0 __virt_addr_valid+0x1e2/0x5d0 kasan_addr_to_slab+0xd/0xa0 __kasan_record_aux_stack+0xe/0xa0 __call_rcu_common.constprop.0+0x6a/0xaa0 kmem_cache_free+0x2ae/0x470 unlink_anon_vmas+0x11d/0x740 free_pgtables+0xc8/0x8e0 exit_mmap+0x3a2/0xac0 mmput+0xd5/0x350 do_exit+0x9ae/0x2a30 do_group_exit+0xd3/0x2a0 get_signal+0x2240/0x2320 arch_do_signal_or_restart+0x81/0x780 syscall_exit_to_user_mode+0x123/0x1e0 do_syscall_64+0xcc/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f22e1e19b19 Code: Unable to access opcode bytes at 0x7f22e1e19aef. RSP: 002b:00007f22df38f188 EFLAGS: 00000246 ORIG_RAX: 000000000000011d RAX: ffffffffffffffe5 RBX: 00007f22e1f2cf60 RCX: 00007f22e1e19b19 RDX: 0000000000000472 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 00007f22e1e73f6d R08: 0000000000000000 R09: 0000000000000000 R10: 00000000087ffffc R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe7ce4253f R14: 00007f22df38f300 R15: 0000000000022000 </TASK> Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 259 Comm: sshd Not tainted 6.12.0-rc7-next-20241115 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:queued_spin_lock_slowpath+0x242/0xb60 Code: 02 48 89 e8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 85 08 00 00 b8 01 00 00 00 66 89 45 00 e9 bf fe ff ff 89 44 24 38 f3 90 <e9> 5b fe ff ff 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 RSP: 0018:ffff8880169f78d0 EFLAGS: 00000202 RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff8486d2bf RDX: ffffed1002ca3b29 RSI: 0000000000000004 RDI: ffff88801651d940 RBP: ffff88801651d940 R08: 0000000000000000 R09: ffffed1002ca3b28 R10: ffff88801651d943 R11: 0000000000000001 R12: 1ffff11002d3ef1b R13: 0000000000000003 R14: ffffed1002ca3b28 R15: ffff8880169f7908 FS: 00007f04d8a5d900(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055688abb3fb0 CR3: 000000000c2e6000 CR4: 0000000000350ef0 Call Trace: <NMI> </NMI> <TASK> do_raw_spin_lock+0x1de/0x270 lock_sock_nested+0x5f/0xf0 tcp_recvmsg+0xf8/0x630 inet_recvmsg+0x12b/0x6b0 sock_recvmsg+0x198/0x240 sock_read_iter+0x2bb/0x3b0 vfs_read+0xa28/0xbd0 ksys_read+0x1fe/0x240 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f04d8f3fe8e Code: c0 e9 b6 fe ff ff 50 48 8d 3d 6e 18 0a 00 e8 b9 e7 01 00 66 0f 1f 84 00 00 00 00 00 64 8b 04 25 18 00 00 00 85 c0 75 14 0f 05 <48> 3d 00 f0 ff ff 77 5a c3 66 0f 1f 84 00 00 00 00 00 48 83 ec 28 RSP: 002b:00007ffdd4ee3cc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 00007ffdd4ee7d5f RCX: 00007f04d8f3fe8e RDX: 0000000000004000 RSI: 00007ffdd4ee3cd0 RDI: 0000000000000004 RBP: 0000000000000004 R08: 00236b8350988340 R09: 00007f04d95d4000 R10: 00007f04d95d4070 R11: 0000000000000246 R12: 0000556f46de8ec0 R13: 00007ffdd4ee3cd0 R14: 0000000000000004 R15: 0000556f19db9a80 </TASK> ---------------- Code disassembly (best guess): 0: 77 4d ja 0x4f 2: 4c 89 e0 mov %r12,%rax 5: 48 29 e8 sub %rbp,%rax 8: 48 89 c2 mov %rax,%rdx b: 48 c1 e8 3f shr $0x3f,%rax f: 48 c1 fa 02 sar $0x2,%rdx 13: 48 01 d0 add %rdx,%rax 16: 48 d1 f8 sar %rax 19: 48 8d 5c 85 00 lea 0x0(%rbp,%rax,4),%rbx 1e: 48 89 d8 mov %rbx,%rax 21: 48 c1 e8 03 shr $0x3,%rax 25: 42 0f b6 14 38 movzbl (%rax,%r15,1),%edx * 2a: 48 89 d8 mov %rbx,%rax <-- trapping instruction 2d: 83 e0 07 and $0x7,%eax 30: 83 c0 03 add $0x3,%eax 33: 38 d0 cmp %dl,%al 35: 7c 04 jl 0x3b 37: 84 d2 test %dl,%dl 39: 75 50 jne 0x8b 3b: 48 63 03 movslq (%rbx),%rax 3e: 48 rex.W 3f: 01 .byte 0x1