ata2.00: qc timeout after 5000 msecs (cmd 0xa0) ata2: found unknown device (class 0) watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.6:12272] Modules linked in: irq event stamp: 5913587 hardirqs last enabled at (5913586): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (5913587): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (5910122): [] irq_exit_rcu+0x93/0xc0 softirqs last disabled at (5910125): [] irq_exit_rcu+0x93/0xc0 CPU: 1 PID: 12272 Comm: syz-executor.6 Not tainted 6.4.0-next-20230706 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:stack_trace_consume_entry+0xd7/0x170 Code: 02 00 0f 85 9a 00 00 00 8d 45 01 89 43 10 48 8b 03 48 8d 2c e8 48 b8 00 00 00 00 00 fc ff df 48 89 ea 48 c1 ea 03 80 3c 02 00 <75> 64 48 89 75 00 8b 43 08 39 43 10 0f 92 c0 48 83 c4 08 5b 5d e9 RSP: 0018:ffff88806cf09868 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: ffff88806cf09950 RCX: 0000000000000001 RDX: 1ffff1100d9e1344 RSI: ffffffff813c1c6d RDI: ffff88806cf0995c RBP: ffff88806cf09a20 R08: 0000000000000001 R09: ffff88806cf098c8 R10: 0000000000038001 R11: 00000000000791f8 R12: ffff88806cf09950 R13: 0000000000000000 R14: ffff888047408000 R15: ffff888042fa0e70 FS: 00007f108a3a5700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f799e2f24f8 CR3: 000000004487e000 CR4: 0000000000350ee0 Call Trace: arch_stack_walk+0x77/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 kasan_save_free_info+0x2b/0x50 __kasan_slab_free+0x10a/0x190 kmem_cache_free+0x10d/0x4d0 skb_release_data.isra.0+0x708/0x840 consume_skb+0x119/0x2e0 mac80211_hwsim_tx_frame+0x1f6/0x2a0 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:mas_next_slot+0xa1c/0x21e0 Code: 00 48 8b 44 24 48 48 8b 4c 24 10 0f b6 98 00 d5 e3 84 44 8d 63 ff 41 0f b6 c4 48 8d 2c c1 48 89 e8 48 c1 e8 03 42 80 3c 30 00 <0f> 85 0e 15 00 00 48 8b 6d 00 31 ff 48 89 ee e8 50 b0 00 fd 48 85 RSP: 0018:ffff888047f9fa08 EFLAGS: 00000246 RAX: 1ffff110083b684f RBX: 000000000000000f RCX: ffff888041db4208 RDX: 0000000000000001 RSI: ffffffff844b8a69 RDI: ffffffff84e3d501 RBP: ffff888041db4278 R08: 0000000000000005 R09: 0000000000000003 R10: 0000000000000001 R11: 0000000000000001 R12: 000000000000000e R13: ffff888041db4200 R14: dffffc0000000000 R15: ffff888047f9fb40 mas_find+0xcb/0x340 acct_collect+0x1ce/0x880 do_exit+0x7a0/0x2740 do_group_exit+0xd4/0x2a0 get_signal+0x263f/0x26c0 arch_do_signal_or_restart+0x79/0x590 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: 0033:0x7f108ce50b19 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:00007f108a3a5188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: 0000000000000005 RBX: 00007f108cf64020 RCX: 00007f108ce50b19 RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000000020000580 RBP: 00007f108ceaaf6d R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcfc0dde5f R14: 00007f108a3a5300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at default_idle+0xf/0x20 ---------------- Code disassembly (best guess): 0: 02 00 add (%rax),%al 2: 0f 85 9a 00 00 00 jne 0xa2 8: 8d 45 01 lea 0x1(%rbp),%eax b: 89 43 10 mov %eax,0x10(%rbx) e: 48 8b 03 mov (%rbx),%rax 11: 48 8d 2c e8 lea (%rax,%rbp,8),%rbp 15: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 1c: fc ff df 1f: 48 89 ea mov %rbp,%rdx 22: 48 c1 ea 03 shr $0x3,%rdx 26: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) * 2a: 75 64 jne 0x90 <-- trapping instruction 2c: 48 89 75 00 mov %rsi,0x0(%rbp) 30: 8b 43 08 mov 0x8(%rbx),%eax 33: 39 43 10 cmp %eax,0x10(%rbx) 36: 0f 92 c0 setb %al 39: 48 83 c4 08 add $0x8,%rsp 3d: 5b pop %rbx 3e: 5d pop %rbp 3f: e9 .byte 0xe9