watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.7:33638] Modules linked in: irq event stamp: 5010871 hardirqs last enabled at (5010870): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (5010871): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (4879978): [] irq_exit_rcu+0x93/0xc0 softirqs last disabled at (4879981): [] irq_exit_rcu+0x93/0xc0 CPU: 1 PID: 33638 Comm: syz-executor.7 Not tainted 6.5.0-rc6-next-20230817 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:write_comp_data+0x32/0x90 Code: f8 65 8b 05 d8 02 b6 7e 89 c6 81 e6 00 01 00 00 65 48 8b 14 25 80 8d 03 00 a9 00 01 ff 00 74 0e 85 f6 74 59 8b 82 9c 14 00 00 <85> c0 74 4f 8b 82 78 14 00 00 83 f8 03 75 44 48 8b 82 80 14 00 00 RSP: 0018:ffff88806cf09720 EFLAGS: 00000206 RAX: 0000000000000000 RBX: ffff88806cf097a8 RCX: ffffffff8113c36e RDX: ffff88802de79b40 RSI: 0000000000000100 RDI: 0000000000000001 RBP: ffffffff860c3338 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 1ffff1100d9e69d4 R12: 0000000000000002 R13: ffff88806cf09ff8 R14: ffff88806cf09ff0 R15: ffffffff860c333c FS: 00007f07fd0bf700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2ec29000 CR3: 000000003acf8000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: unwind_next_frame+0xd0e/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+0x22/0xa0 Code: 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 b8 00 00 00 00 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 RSP: 0018:ffff88803b307ca0 EFLAGS: 00000286 RAX: 0000000000000000 RBX: 1ffff11007660fba RCX: 0000000000000000 RDX: 1ffffffff0921910 RSI: ffffffff856e8ed8 RDI: ffffffff8490c880 RBP: ffffffff8490c880 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff85d51c57 R11: 1ffff1100d9e69bf R12: 0000000000000001 R13: 1ffff11007660f9f R14: ffff88803b307d78 R15: ffffffff85511d80 perf_trace_lock_acquire+0xcf/0x500 lock_acquire+0x416/0x4c0 _raw_read_lock+0x5c/0x70 __get_fs_type+0x21/0x160 get_fs_type+0xb1/0x1b0 __x64_sys_fsopen+0xc8/0x240 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 RIP: 0033:0x7f07ffb49b19 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:00007f07fd0bf188 EFLAGS: 00000246 ORIG_RAX: 00000000000001ae RAX: ffffffffffffffda RBX: 00007f07ffc5cf60 RCX: 00007f07ffb49b19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000040 RBP: 00007f07ffba3f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe0a35c00f R14: 00007f07fd0bf300 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-rc6-next-20230817 #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 ba 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: ffffffff845c7acb RDX: fffffbfff0b4e5b1 RSI: 0000000000000004 RDI: ffffffff85a72d80 RBP: ffffffff85a72d80 R08: 0000000000000000 R09: fffffbfff0b4e5b0 R10: ffffffff85a72d83 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0b4e5b0 R14: 0000000000000001 R15: 1ffff1100d9c1348 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f65a1685688 CR3: 000000000bee6000 CR4: 0000000000350ef0 DR0: 0000000000000000 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 6d 28 00 0f 1f 44 00 00 fb f4 e9 9c 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: 000000000039e9bf RBX: 0000000000000000 RCX: ffffffff845a0fbe RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff81299855 RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed100d9c6a08 R10: ffff88806ce35043 R11: 0000000000000001 R12: ffffffff85d51c50 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+0x178/0x17b ---------------- Code disassembly (best guess): 0: f8 clc 1: 65 8b 05 d8 02 b6 7e mov %gs:0x7eb602d8(%rip),%eax # 0x7eb602e0 8: 89 c6 mov %eax,%esi a: 81 e6 00 01 00 00 and $0x100,%esi 10: 65 48 8b 14 25 80 8d mov %gs:0x38d80,%rdx 17: 03 00 19: a9 00 01 ff 00 test $0xff0100,%eax 1e: 74 0e je 0x2e 20: 85 f6 test %esi,%esi 22: 74 59 je 0x7d 24: 8b 82 9c 14 00 00 mov 0x149c(%rdx),%eax * 2a: 85 c0 test %eax,%eax <-- trapping instruction 2c: 74 4f je 0x7d 2e: 8b 82 78 14 00 00 mov 0x1478(%rdx),%eax 34: 83 f8 03 cmp $0x3,%eax 37: 75 44 jne 0x7d 39: 48 8b 82 80 14 00 00 mov 0x1480(%rdx),%rax