watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [syz-executor.6:12270] Modules linked in: irq event stamp: 2021533 hardirqs last enabled at (2021532): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2021533): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2006582): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2006595): [] __irq_exit_rcu+0xc4/0x100 CPU: 1 UID: 0 PID: 12270 Comm: syz-executor.6 Not tainted 6.12.0-rc7-next-20241115 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__kernel_text_address+0xf/0x40 Code: 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 53 48 89 fb e8 23 ff ff ff 85 c0 <75> 1b 48 81 fb 00 b0 d5 86 72 0c 31 c0 48 81 fb 7a ac eb 86 0f 92 RSP: 0018:ffff88806cf097b0 EFLAGS: 00000202 RAX: 0000000000000001 RBX: ffffffff845f00d0 RCX: 0000000000000001 RDX: 1ffff1100d9e1306 RSI: ffff88806cf09d38 RDI: ffffffff845f00d0 RBP: ffff88806cf09830 R08: 0000000000000001 R09: ffff88806cf09818 R10: 000000000003c001 R11: 00000000000824cf R12: ffff88806cf098a0 R13: 0000000000000000 R14: ffff88803772d280 R15: 0000000000082820 FS: 00007f86945f0700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fee69a16ae0 CR3: 000000000f680000 CR4: 0000000000350ef0 Call Trace: unwind_get_return_address+0x59/0xa0 arch_stack_walk+0x9d/0xf0 stack_trace_save+0x8f/0xc0 set_track_prepare+0x36/0x70 __alloc_object+0xf4/0x270 __create_object+0x1d/0x80 kmem_cache_alloc_node_noprof+0x311/0x3e0 kmalloc_reserve+0x189/0x2b0 __alloc_skb+0x162/0x370 __netdev_alloc_skb+0x7a/0x7c0 __ieee80211_beacon_get+0x3f4/0xfc0 ieee80211_beacon_get_tim+0xa6/0x280 mac80211_hwsim_beacon_tx+0x49b/0x950 __iterate_interfaces+0x2e0/0x650 ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x1ab/0xa70 hrtimer_run_softirq+0x14c/0x310 handle_softirqs+0x1b1/0x770 __irq_exit_rcu+0xc4/0x100 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:put_cpu_partial+0x10a/0x1b0 Code: 24 28 75 5b 49 c7 44 24 28 00 00 00 00 4c 89 e7 48 8d 35 00 00 00 00 e8 14 9a ab ff 4d 85 ed 74 06 e8 8a 62 d5 ff fb 4d 85 f6 <74> 1c 5b 4c 89 f6 48 89 ef 5d 41 5c 41 5d 41 5e e9 c1 fa ff ff 44 RSP: 0018:ffff8880343af470 EFLAGS: 00000286 RAX: 00000000001e9e41 RBX: ffffea0000395a40 RCX: 1ffffffff0fdfecf RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff81849d96 RBP: ffff888008c4f780 R08: 0000000000000001 R09: fffffbfff0fdddf1 R10: ffffffff87eeef8f R11: 00000000000007e0 R12: ffff88806cf40350 R13: 0000000000000200 R14: ffffea000027a000 R15: ffff88800e569000 qlist_free_all+0x50/0x160 kasan_quarantine_reduce+0x19f/0x240 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 security_inode_alloc+0x3e/0x130 inode_init_always_gfp+0xc94/0xff0 alloc_inode+0x89/0x240 sock_alloc+0x40/0x270 sock_create_lite+0x83/0x120 __netlink_kernel_create+0xbb/0x7c0 audit_net_init+0x1af/0x440 ops_init+0x1e1/0x650 setup_net+0x1d7/0x7a0 copy_net_ns+0x2e3/0x6f0 create_new_namespaces+0x3f6/0xaf0 copy_namespaces+0x45c/0x580 copy_process+0x2704/0x8e90 kernel_clone+0xeb/0x850 __do_sys_clone3+0x1d9/0x260 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f869707ab19 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:00007f86945f0188 EFLAGS: 00000246 ORIG_RAX: 00000000000001b3 RAX: ffffffffffffffda RBX: 00007f869718df60 RCX: 00007f869707ab19 RDX: 0000000000000000 RSI: 0000000000000058 RDI: 0000000020004c00 RBP: 00007f86970d4f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc79d76d4f R14: 00007f86945f0300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.12.0-rc7-next-20241115 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:lock_release+0xa6/0x6f0 Code: a6 03 00 65 41 8b 2e 89 ed be 08 00 00 00 48 89 e8 48 c1 e8 06 48 8d 3c c5 90 a3 3f 86 e8 42 c0 5b 00 48 0f a3 2d 4a 6b 0f 05 <0f> 82 47 04 00 00 48 c7 c5 34 b1 3f 86 48 b8 00 00 00 00 00 fc ff RSP: 0018:ffff88806ce09440 EFLAGS: 00000247 RAX: 0000000000000001 RBX: 1ffff1100d9c128a RCX: ffffffff8130383e RDX: fffffbfff0c7f473 RSI: 0000000000000008 RDI: ffffffff863fa390 RBP: 0000000000000000 R08: 0000000000000000 R09: fffffbfff0c7f472 R10: ffffffff863fa397 R11: 00000000000c1e36 R12: ffffffff85c16180 R13: ffffffff815280c6 R14: 000000000003a6cc R15: 0000000000092820 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005617701ac618 CR3: 000000000f2da000 CR4: 0000000000350ef0 Call Trace: __is_insn_slot_addr+0x13b/0x290 kernel_text_address+0x48/0xc0 __kernel_text_address+0xd/0x40 unwind_get_return_address+0x59/0xa0 arch_stack_walk+0x9d/0xf0 stack_trace_save+0x8f/0xc0 kasan_save_stack+0x24/0x50 kasan_save_track+0x14/0x30 __kasan_slab_alloc+0x59/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 __alloc_object+0x2f/0x270 __create_object+0x1d/0x80 kmem_cache_alloc_node_noprof+0x311/0x3e0 __alloc_skb+0x2ad/0x370 skb_copy+0x1d5/0x3b0 mac80211_hwsim_tx_frame_no_nl.isra.0+0xafb/0x1320 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x546/0x950 __iterate_interfaces+0x2e0/0x650 ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x1ab/0xa70 hrtimer_run_softirq+0x14c/0x310 handle_softirqs+0x1b1/0x770 __irq_exit_rcu+0xc4/0x100 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x70/0x80 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 29 d0 3d 00 0f 1f 44 00 00 fb f4 e9 7c 2e 02 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 RSP: 0018:ffffffff85a07e10 EFLAGS: 00000202 RAX: 0000000000259a9d RBX: 0000000000000000 RCX: ffffffff8484aaf7 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff812b0fca RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed100d9c6cba R10: ffff88806ce365d3 R11: 0000000000000030 R12: ffffffff863fa390 R13: 1ffffffff0b40fc7 R14: 0000000000000000 R15: 0000000000000000 default_idle_call+0x6d/0xb0 do_idle+0x2fa/0x3b0 cpu_startup_entry+0x4f/0x60 rest_init+0x164/0x290 start_kernel+0x40d/0x530 x86_64_start_reservations+0x18/0x30 x86_64_start_kernel+0xcb/0xe0 common_startup_64+0x12c/0x138 ---------------- Code disassembly (best guess): 0: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1) 7: 00 00 00 a: 90 nop b: 90 nop c: 90 nop d: 90 nop e: 90 nop 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: 66 0f 1f 00 nopw (%rax) 1f: 53 push %rbx 20: 48 89 fb mov %rdi,%rbx 23: e8 23 ff ff ff callq 0xffffff4b 28: 85 c0 test %eax,%eax * 2a: 75 1b jne 0x47 <-- trapping instruction 2c: 48 81 fb 00 b0 d5 86 cmp $0xffffffff86d5b000,%rbx 33: 72 0c jb 0x41 35: 31 c0 xor %eax,%eax 37: 48 81 fb 7a ac eb 86 cmp $0xffffffff86ebac7a,%rbx 3e: 0f .byte 0xf 3f: 92 xchg %eax,%edx