watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [syz-executor.0:20534] Modules linked in: irq event stamp: 12973035 hardirqs last enabled at (12973034): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (12973035): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (12944864): [] irq_exit_rcu+0x93/0xc0 softirqs last disabled at (12944867): [] irq_exit_rcu+0x93/0xc0 CPU: 1 PID: 20534 Comm: syz-executor.0 Not tainted 6.5.0-rc3-next-20230728 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0x48b/0x2490 Code: 85 48 c7 c0 25 66 4c 85 eb 49 48 c7 c1 60 66 4c 85 48 ba 00 00 00 00 00 fc ff df 48 8d 41 05 48 89 c6 48 c1 ee 03 0f b6 14 16 <48> 89 c6 83 e6 07 40 38 f2 7f 08 84 d2 0f 85 1d 17 00 00 0f b6 51 RSP: 0018:ffff88806cf09700 EFLAGS: 00000212 RAX: ffffffff864e31c1 RBX: 0000000000000001 RCX: ffffffff864e31bc RDX: 0000000000000000 RSI: 1ffffffff0c9c638 RDI: ffffffff8606d9b8 RBP: ffff88806cf097c8 R08: ffffffff864e3186 R09: ffff88806cf097b0 R10: 0000000000038001 R11: 00000000000b9429 R12: ffff88806cf097d0 R13: ffff88806cf097b8 R14: ffff88806cf097b1 R15: ffff88806cf09770 FS: 00007f6d5cb5d700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005631450e0618 CR3: 00000000464a2000 CR4: 0000000000350ee0 Call Trace: arch_stack_walk+0x87/0xf0 stack_trace_save+0x90/0xd0 set_track_prepare+0x74/0xd0 __create_object+0x3b2/0xc90 kmem_cache_alloc_node+0x23d/0x3b0 kmalloc_reserve+0x169/0x270 __alloc_skb+0x129/0x330 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:__sanitizer_cov_trace_pc+0x0/0x70 Code: be b0 01 00 00 e8 a0 ff ff ff 31 c0 e9 d9 4a 0f 03 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 65 8b 05 bd c4 b6 7e 89 c1 48 8b 34 24 81 e1 00 01 00 RSP: 0018:ffff8880099f7ac0 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 1ffff1100133ef6b RSI: ffffffff84532644 RDI: ffff8880099f7b50 RBP: ffff8880099f7b40 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffffffffffffffff R13: ffff8880451e940c R14: ffff8880099f7b58 R15: ffff8880099f7b48 mas_find+0x208/0x340 acct_collect+0x1ce/0x880 do_exit+0x7a0/0x2740 do_group_exit+0xd4/0x2a0 get_signal+0x2693/0x2720 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: 0033:0x7f6d5f5e7b19 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:00007f6d5cb5d188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: 0000000000000007 RBX: 00007f6d5f6faf60 RCX: 00007f6d5f5e7b19 RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000000020000580 RBP: 00007f6d5f641f6d R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe06d926df R14: 00007f6d5cb5d300 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-rc3-next-20230728 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:kasan_check_range+0x107/0x1b0 Code: 74 f2 48 89 c2 b8 01 00 00 00 48 85 d2 0f 84 4c ff ff ff 41 83 e2 07 49 39 d1 0f 85 34 ff ff ff 45 3a 11 0f 8d 2b ff ff ff 5b 01 00 00 00 5d 41 5c e9 0c 03 da 02 41 bc 08 00 00 00 48 89 ea RSP: 0018:ffff88806ce09a20 EFLAGS: 00000246 RAX: fffffbfff0b4de91 RBX: 0000000000000001 RCX: ffffffff845bef2b RDX: fffffbfff0b4de91 RSI: 0000000000000004 RDI: ffffffff85a6f480 RBP: fffffbfff0b4de90 R08: 0000000000000000 R09: fffffbfff0b4de90 R10: ffffffff85a6f483 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0b4de90 R14: 0000000000000001 R15: 1ffff1100d9c1348 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f78e759f8e0 CR3: 000000000eb2e000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: queued_spin_lock_slowpath+0xab/0xb20 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+0xf/0x20 Code: 4c 01 c7 4c 29 c2 e9 72 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d 63 e9 28 00 fb f4 e9 fb 7a 02 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 RSP: 0018:ffffffff85407e10 EFLAGS: 00000206 RAX: 0000000000a3b8b7 RBX: 0000000000000000 RCX: ffffffff8459866e RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8128e645 RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed100d9c6a00 R10: ffff88806ce35003 R11: 0000000000000001 R12: ffffffff85d4a7d0 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): 0: 85 48 c7 test %ecx,-0x39(%rax) 3: c0 25 66 4c 85 eb 49 shlb $0x49,-0x147ab39a(%rip) # 0xeb854c70 a: 48 c7 c1 60 66 4c 85 mov $0xffffffff854c6660,%rcx 11: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx 18: fc ff df 1b: 48 8d 41 05 lea 0x5(%rcx),%rax 1f: 48 89 c6 mov %rax,%rsi 22: 48 c1 ee 03 shr $0x3,%rsi 26: 0f b6 14 16 movzbl (%rsi,%rdx,1),%edx * 2a: 48 89 c6 mov %rax,%rsi <-- trapping instruction 2d: 83 e6 07 and $0x7,%esi 30: 40 38 f2 cmp %sil,%dl 33: 7f 08 jg 0x3d 35: 84 d2 test %dl,%dl 37: 0f 85 1d 17 00 00 jne 0x175a 3d: 0f .byte 0xf 3e: b6 51 mov $0x51,%dh