watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.4:9009] Modules linked in: irq event stamp: 4545313 hardirqs last enabled at (4545312): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (4545313): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (4512222): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (4512225): [] irq_exit_rcu+0x94/0xc0 CPU: 1 UID: 0 PID: 9009 Comm: syz-executor.4 Not tainted 6.12.0-rc3-next-20241016 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:skb_copy_from_linear_data_offset+0x45/0x70 Code: bc 24 d0 00 00 00 89 ea 48 b8 00 00 00 00 00 fc ff df 48 89 f9 48 c1 e9 03 80 3c 01 00 75 1d 48 63 f3 49 03 b4 24 d0 00 00 00 <48> 83 c4 08 4c 89 ef 5b 5d 41 5c 41 5d e9 69 93 fe fd 48 89 14 24 RSP: 0018:ffff88806cf09a50 EFLAGS: 00000287 RAX: dffffc0000000000 RBX: 00000000ffffffb0 RCX: 1ffff110073f77d2 RDX: 000000000000009c RSI: ffff88804045f000 RDI: ffff888039fbbe90 RBP: 000000000000009c R08: 0000000000000001 R09: ffffed100808be8c R10: 000000000000009c R11: 0000000000000000 R12: ffff888039fbbdc0 R13: ffff88804045f300 R14: 0000000000000000 R15: 00000000ffffffb0 FS: 00007f9af86e7700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020004c00 CR3: 000000003d90a000 CR4: 0000000000350ef0 Call Trace: skb_copy_bits+0x6c2/0x850 skb_copy+0x2d2/0x3b0 mac80211_hwsim_tx_frame_no_nl.isra.0+0xafb/0x1320 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x546/0x950 __iterate_interfaces+0x2cb/0x5d0 ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x1ab/0xa70 hrtimer_run_softirq+0x14c/0x310 handle_softirqs+0x1b1/0x770 irq_exit_rcu+0x94/0xc0 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:tcp_metrics_flush_all+0x85/0x3f0 Code: c7 01 49 83 c6 08 44 89 fe 89 df e8 f5 1b 81 fd 44 39 fb 0f 84 fa 02 00 00 e8 77 19 81 fd 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 <0f> 85 3e 03 00 00 49 8b 06 48 85 c0 74 bd e8 58 19 81 fd 48 c7 c7 RSP: 0018:ffff88802b32f7d8 EFLAGS: 00000246 RAX: 1ffff110015ccfcd RBX: 0000000000004000 RCX: ffffc9000de76000 RDX: 0000000000040000 RSI: ffffffff83d062a9 RDI: 0000000000000004 RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed10027365c8 R10: 0000000000000fcd R11: 0000000000000000 R12: dffffc0000000000 R13: 0000000000000000 R14: ffff88800ae67e68 R15: 0000000000000fcd ops_exit_list+0x12b/0x180 setup_net+0x492/0x7a0 copy_net_ns+0x2e3/0x6f0 create_new_namespaces+0x3f6/0xaf0 copy_namespaces+0x45c/0x580 copy_process+0x2704/0x8e00 kernel_clone+0xeb/0x850 __do_sys_clone3+0x1d5/0x250 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9afb192b19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f9af86e7188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007f9afb2a6020 RCX: 00007f9afb192b19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020004c00 RBP: 00007f9afb1ecf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd22a28c7f R14: 00007f9af86e7300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.12.0-rc3-next-20241016 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:srso_safe_ret+0x0/0x20 Code: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 48 b8 <48> 8d 64 24 08 c3 cc cc 0f ae e8 e8 f0 ff ff ff 0f 0b 66 66 2e 0f RSP: 0018:ffff88806ce09978 EFLAGS: 00000046 RAX: 0000000000000000 RBX: ffff88806ce2ce80 RCX: ffffffff81306634 RDX: ffffffff85a2a740 RSI: ffffffff813fb50c RDI: ffff88806ce3c340 RBP: ffff88806ce3c340 R08: 0000000000000001 R09: ffffed100d9c1329 R10: 0000000000000003 R11: 1ffff1100d9c7860 R12: ffff88806ce2ce00 R13: 000000000003a6cc R14: 0000000000000008 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055d9beee5618 CR3: 000000000e20c000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: srso_return_thunk+0x5/0x5f enqueue_hrtimer+0x2c/0x340 hrtimer_start_range_ns+0x776/0xab0 start_dl_timer+0x2e7/0x4b0 enqueue_dl_entity+0xdf0/0x2450 dl_server_start+0xb9/0x870 enqueue_task_fair+0x67e/0x1ad0 enqueue_task+0x70/0x1a0 ttwu_do_activate+0x136/0x740 try_to_wake_up+0x515/0x1790 call_timer_fn+0x198/0x5c0 __run_timer_base.part.0+0x688/0x950 run_timer_softirq+0xf9/0x1d0 handle_softirqs+0x1b1/0x770 irq_exit_rcu+0x94/0xc0 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:default_idle+0x1e/0x30 Code: 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 0f 1f 44 00 00 eb 0c 0f 1f 44 00 00 0f 00 2d 69 41 40 00 0f 1f 44 00 00 fb f4 e9 5c 28 02 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 RSP: 0018:ffffffff85a07e10 EFLAGS: 00000202 RAX: 0000000000290a89 RBX: 0000000000000000 RCX: ffffffff848238d7 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff812ad1ed RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed100d9c6c70 R10: ffff88806ce36383 R11: 0000000000000000 R12: ffffffff863f2748 R13: 1ffffffff0b40fc7 R14: 0000000000000000 R15: 0000000000000000 default_idle_call+0x6d/0xb0 do_idle+0x2fd/0x3b0 cpu_startup_entry+0x4f/0x60 rest_init+0x164/0x290 start_kernel+0x40d/0x530 x86_64_start_reservations+0x18/0x30 x86_64_start_kernel+0xcb/0xe0 common_startup_64+0x12c/0x138 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: d0 00 rolb (%rax) 2: 00 00 add %al,(%rax) 4: 89 ea mov %ebp,%edx 6: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax d: fc ff df 10: 48 89 f9 mov %rdi,%rcx 13: 48 c1 e9 03 shr $0x3,%rcx 17: 80 3c 01 00 cmpb $0x0,(%rcx,%rax,1) 1b: 75 1d jne 0x3a 1d: 48 63 f3 movslq %ebx,%rsi 20: 49 03 b4 24 d0 00 00 add 0xd0(%r12),%rsi 27: 00 * 28: 48 83 c4 08 add $0x8,%rsp <-- trapping instruction 2c: 4c 89 ef mov %r13,%rdi 2f: 5b pop %rbx 30: 5d pop %rbp 31: 41 5c pop %r12 33: 41 5d pop %r13 35: e9 69 93 fe fd jmpq 0xfdfe93a3 3a: 48 89 14 24 mov %rdx,(%rsp)