watchdog: BUG: soft lockup - CPU#1 stuck for 21s! [syz-executor.1:101349] Modules linked in: irq event stamp: 7167863 hardirqs last enabled at (7167862): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (7167863): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (7161130): [] irq_exit_rcu+0x93/0xc0 softirqs last disabled at (7161133): [] irq_exit_rcu+0x93/0xc0 CPU: 1 PID: 101349 Comm: syz-executor.1 Not tainted 6.5.0-rc5-next-20230808 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__sanitizer_cov_trace_switch+0xa/0x90 Code: 00 00 00 e9 f8 fd ff ff 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 41 56 41 55 41 54 <49> 89 fc 55 48 89 f5 53 48 8b 46 08 48 83 f8 20 74 6b 77 48 48 83 RSP: 0018:ffff88806cf09708 EFLAGS: 00000202 RAX: 0000000000000000 RBX: ffff88806cf097a8 RCX: 0000000000000100 RDX: ffff88800e58b680 RSI: ffffffff84853b60 RDI: 0000000000000002 RBP: ffffffff864e5724 R08: 0000000000000001 R09: 0000000000000009 R10: 0000000000000009 R11: 0000000000000001 R12: 0000000000000002 R13: ffff88803266f3f8 R14: 0000000000000002 R15: ffffffff864e5728 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc21a0b6000 CR3: 0000000005482000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: unwind_next_frame+0x73f/0x25d0 arch_stack_walk+0xe6/0x160 stack_trace_save+0x90/0xd0 set_track_prepare+0x74/0xd0 __create_object+0x3b2/0xc90 kmem_cache_alloc_node+0x23d/0x3b0 __alloc_skb+0x28c/0x330 skb_copy+0x13d/0x3f0 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb11/0x1330 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x427/0x730 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x59d/0xb60 hrtimer_run_softirq+0x14c/0x310 __do_softirq+0x1b7/0x7d4 irq_exit_rcu+0x93/0xc0 sysvec_apic_timer_interrupt+0x6e/0x90 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:strlen+0x34/0xa0 Code: 00 fc ff df 55 48 89 fa 48 89 fd 53 48 c1 ea 03 48 83 ec 08 0f b6 04 02 48 89 fa 83 e2 07 38 d0 7f 04 84 c0 75 50 80 7d 00 00 <74> 3d 48 bb 00 00 00 00 00 fc ff df 48 89 e8 48 83 c0 01 48 89 c2 RSP: 0018:ffff88803266f4a8 EFLAGS: 00000206 RAX: 0000000000000005 RBX: ffff88800cb93390 RCX: ffffffff812edbeb RDX: 0000000000000000 RSI: ffff88806cf35800 RDI: ffffffff848eeea0 RBP: ffffffff848eeea0 R08: 0000000000000000 R09: fffffbfff0baa372 R10: ffffffff85d51b97 R11: 0000000000000001 R12: 1ffff110064cde9f R13: ffff88803266f578 R14: ffffffff85510e00 R15: 0000000000000008 perf_trace_lock+0xc1/0x480 lock_release+0x4a9/0x680 mlock_drain_local+0x1d1/0x3f0 free_pages_and_swap_cache+0x1c/0xa0 tlb_batch_pages_flush+0xa8/0x1b0 unmap_page_range+0x168a/0x2580 unmap_single_vma+0x19a/0x2b0 unmap_vmas+0x1b2/0x300 exit_mmap+0x16a/0x9b0 mmput+0xd5/0x390 do_exit+0x99f/0x2740 do_group_exit+0xd4/0x2a0 get_signal+0x2693/0x2720 arch_do_signal_or_restart+0x81/0x790 exit_to_user_mode_prepare+0xeb/0x180 syscall_exit_to_user_mode+0x1d/0x50 do_syscall_64+0x4c/0x90 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 RIP: 0033:0x7fdf84741b19 Code: Unable to access opcode bytes at 0x7fdf84741aef. RSP: 002b:00007fdf81cb7188 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: 0000000000000006 RBX: 00007fdf84854f60 RCX: 00007fdf84741b19 RDX: 0000000000000000 RSI: 0000000000000002 RDI: 000000000000000a RBP: 00007fdf8479bf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffef70dc71f R14: 00007fdf81cb7300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.5.0-rc5-next-20230808 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:queued_spin_lock_slowpath+0x128/0xb20 Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 5c 09 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 4a 21 00 00 f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e4 00 00 RSP: 0018:ffff88806ce09a38 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff845e2b3b RDX: fffffbfff0b4e591 RSI: 0000000000000004 RDI: ffffffff85a72c80 RBP: ffffffff85a72c80 R08: 0000000000000000 R09: fffffbfff0b4e590 R10: ffffffff85a72c83 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0b4e590 R14: 0000000000000001 R15: 1ffff1100d9c1348 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe28b16dd8 CR3: 000000000e0a0000 CR4: 0000000000350ef0 DR0: ffff7fffffff01dd DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: do_raw_spin_lock+0x1e0/0x270 mac80211_hwsim_tx_frame_no_nl.isra.0+0x6e7/0x1330 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x427/0x730 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x59d/0xb60 hrtimer_run_softirq+0x14c/0x310 __do_softirq+0x1b7/0x7d4 irq_exit_rcu+0x93/0xc0 sysvec_apic_timer_interrupt+0x6e/0x90 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 bd 26 00 0f 1f 44 00 00 fb f4 e9 1c 7d 02 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 RSP: 0018:ffffffff85407e10 EFLAGS: 00000202 RAX: 0000000000a83c7f RBX: 0000000000000000 RCX: ffffffff845bc03e RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8129cac5 RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed100d9c6a08 R10: ffff88806ce35043 R11: 0000000000000001 R12: ffffffff85d51b90 R13: 1ffffffff0a80fc7 R14: 0000000000000000 R15: 0000000000000000 default_idle_call+0x67/0xa0 do_idle+0x305/0x3c0 cpu_startup_entry+0x18/0x20 rest_init+0x168/0x290 arch_call_rest_init+0x13/0x40 start_kernel+0x3c4/0x4e0 x86_64_start_reservations+0x18/0x30 x86_64_start_kernel+0xcf/0xe0 secondary_startup_64_no_verify+0x179/0x17b ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 00 00 add %al,(%rax) 2: e9 f8 fd ff ff jmpq 0xfffffdff 7: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1) e: 00 f: 90 nop 10: 90 nop 11: 90 nop 12: 90 nop 13: 90 nop 14: 90 nop 15: 90 nop 16: 90 nop 17: 90 nop 18: 90 nop 19: 90 nop 1a: 90 nop 1b: 90 nop 1c: 90 nop 1d: 90 nop 1e: 90 nop 1f: f3 0f 1e fa endbr64 23: 41 56 push %r14 25: 41 55 push %r13 27: 41 54 push %r12 * 29: 49 89 fc mov %rdi,%r12 <-- trapping instruction 2c: 55 push %rbp 2d: 48 89 f5 mov %rsi,%rbp 30: 53 push %rbx 31: 48 8b 46 08 mov 0x8(%rsi),%rax 35: 48 83 f8 20 cmp $0x20,%rax 39: 74 6b je 0xa6 3b: 77 48 ja 0x85 3d: 48 rex.W 3e: 83 .byte 0x83