watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.2:4376] Modules linked in: irq event stamp: 4289999 hardirqs last enabled at (4289998): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (4289999): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (4248334): [] irq_exit_rcu+0x93/0xc0 softirqs last disabled at (4248349): [] irq_exit_rcu+0x93/0xc0 CPU: 0 PID: 4376 Comm: syz-executor.2 Not tainted 6.4.0-rc2-next-20230515 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:mac80211_hwsim_tx_frame_no_nl.isra.0+0xb14/0x1330 Code: c6 88 04 24 e8 bd 40 3a fe 0f b6 04 24 84 c0 0f 85 e9 02 00 00 e8 6c 45 3a fe be 20 08 00 00 4c 89 ef e8 0f d3 51 00 49 89 c2 <48> 85 c0 0f 84 53 fc ff ff 4c 89 14 24 e8 4a 45 3a fe 48 8b 44 24 RSP: 0018:ffff88806ce09b90 EFLAGS: 00000282 RAX: ffff8880397d7640 RBX: ffff8880435e33e0 RCX: 0000000000000100 RDX: ffff8880455b3680 RSI: ffffffff83638942 RDI: ffff888042eb7458 RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000000 R10: ffff8880397d7640 R11: 0000000000000000 R12: ffff888043ef33e0 R13: ffff8880397d7500 R14: ffff888043ef3678 R15: ffff8880397d7570 FS: 00007f060848e700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055fae7e21e90 CR3: 0000000019e56000 CR4: 0000000000350ef0 Call Trace: 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:qlist_free_all+0xb3/0x1a0 Code: 0f 82 f8 00 00 00 48 c7 c0 00 00 00 80 48 2b 05 6b 29 aa 03 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 49 29 aa 03 48 8b 48 08 <48> 89 c2 f6 c1 01 0f 85 ba 00 00 00 0f 1f 44 00 00 48 8b 02 f6 c4 RSP: 0018:ffff88804527f580 EFLAGS: 00000282 RAX: ffffea00003a5280 RBX: ffff88800e94ae40 RCX: ffff88800844f780 RDX: ffff88808e94ae40 RSI: ffffea00005a8600 RDI: 0000000040000000 RBP: 0000000000000000 R08: ffff88800e94ae40 R09: 00000000800d0008 R10: ffffea00005a8600 R11: 0000000000000000 R12: dffffc0000000000 R13: ffff88804527f5c0 R14: 0000000000000000 R15: ffff888016a18850 kasan_quarantine_reduce+0x199/0x230 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc+0x172/0x390 __create_object+0x3c/0xc90 kmem_cache_alloc+0x213/0x390 __proc_create+0x2b3/0x8b0 proc_create_reg+0xb6/0x180 proc_create_net_data+0x90/0x1c0 nfs_fs_proc_net_init+0xf1/0x1e0 ops_init+0xbb/0x6b0 setup_net+0x3d9/0x990 copy_net_ns+0x321/0x770 create_new_namespaces+0x3f6/0xb30 copy_namespaces+0x414/0x500 copy_process+0x2b78/0x73b0 kernel_clone+0xeb/0x7d0 __do_sys_clone3+0x1d5/0x250 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f060af18b19 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:00007f060848e188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007f060b02bf60 RCX: 00007f060af18b19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020004c00 RBP: 00007f060af72f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd2ff6c84f R14: 00007f060848e300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.4.0-rc2-next-20230515 #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 5a 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:ffff88806cf09a38 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff844e436b RDX: fffffbfff0b4b959 RSI: 0000000000000004 RDI: ffffffff85a5cac0 RBP: ffffffff85a5cac0 R08: 0000000000000000 R09: fffffbfff0b4b958 R10: ffffffff85a5cac3 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0b4b958 R14: 0000000000000001 R15: 1ffff1100d9e1348 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055fae7e18618 CR3: 000000000f0c4000 CR4: 0000000000350ee0 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+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 a3 64 36 00 fb f4 e9 9b 4b 02 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 RSP: 0018:ffff888008dcfe68 EFLAGS: 00000202 RAX: 000000000019a2ab RBX: 0000000000000001 RCX: ffffffff844c0a0e RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff81288625 RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed100d9e69f8 R10: ffff88806cf34fc3 R11: 0000000000000001 R12: ffffffff85d33710 R13: 1ffff110011b9fd2 R14: 0000000000000000 R15: 0000000000000000 default_idle_call+0x67/0xa0 do_idle+0x305/0x3c0 cpu_startup_entry+0x18/0x20 start_secondary+0x1ca/0x220 secondary_startup_64_no_verify+0x106/0x10b ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 88 04 24 mov %al,(%rsp) 3: e8 bd 40 3a fe callq 0xfe3a40c5 8: 0f b6 04 24 movzbl (%rsp),%eax c: 84 c0 test %al,%al e: 0f 85 e9 02 00 00 jne 0x2fd 14: e8 6c 45 3a fe callq 0xfe3a4585 19: be 20 08 00 00 mov $0x820,%esi 1e: 4c 89 ef mov %r13,%rdi 21: e8 0f d3 51 00 callq 0x51d335 26: 49 89 c2 mov %rax,%r10 * 29: 48 85 c0 test %rax,%rax <-- trapping instruction 2c: 0f 84 53 fc ff ff je 0xfffffc85 32: 4c 89 14 24 mov %r10,(%rsp) 36: e8 4a 45 3a fe callq 0xfe3a4585 3b: 48 rex.W 3c: 8b .byte 0x8b 3d: 44 rex.R 3e: 24 .byte 0x24