watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [syz-executor.4:5927] Modules linked in: irq event stamp: 7192233 hardirqs last enabled at (7192232): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (7192233): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (7138932): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (7138935): [] irq_exit_rcu+0x94/0xc0 CPU: 1 UID: 0 PID: 5927 Comm: syz-executor.4 Not tainted 6.12.0-rc3-next-20241016 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:stack_trace_consume_entry+0x0/0x170 Code: 49 c7 c4 ea ff ff ff eb c7 e8 bc 98 43 03 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 48 b8 00 00 00 00 00 fc ff df 55 53 48 89 fb 48 83 c7 RSP: 0018:ffff88806cf09880 EFLAGS: 00000282 RAX: ffffffff818b364a RBX: ffffffff813e8f70 RCX: ffffffff86832101 RDX: 1ffff1100d9e131c RSI: ffffffff818b364a RDI: ffff88806cf09950 RBP: ffff88806cf09920 R08: ffffffff868321c2 R09: ffff88806cf098c8 R10: 000000000003c001 R11: 0000000000023a45 R12: ffff88806cf09950 R13: 0000000000000000 R14: ffff88803f01b700 R15: ffff888016fd6a00 FS: 00007f1ed3c53700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000004 CR3: 000000003e78e000 CR4: 0000000000350ef0 Call Trace: arch_stack_walk+0x77/0xf0 stack_trace_save+0x8f/0xc0 kasan_save_stack+0x24/0x50 kasan_save_track+0x14/0x30 kasan_save_free_info+0x3a/0x60 __kasan_slab_free+0x38/0x50 kmem_cache_free+0x138/0x470 kfree_skbmem+0x18a/0x1f0 consume_skb+0xdd/0x160 mac80211_hwsim_tx_frame+0x1f6/0x2a0 mac80211_hwsim_beacon_tx+0x546/0x950 __iterate_interfaces+0x2cb/0x5d0 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+0x94/0xc0 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:qlist_free_all+0x96/0x160 Code: 0f 82 e0 00 00 00 48 c7 c2 00 00 00 80 48 2b 15 f8 ed f1 03 48 01 ca 48 c1 ea 0c 48 c1 e2 06 48 03 15 d6 ed f1 03 48 8b 72 08 <48> 89 d1 40 f6 c6 01 0f 85 a1 00 00 00 66 90 80 79 33 f5 ba 00 00 RSP: 0018:ffff8880409978f0 EFLAGS: 00000286 RAX: ffff888041e34400 RBX: ffff888041e34400 RCX: ffff8880c1e34400 RDX: ffffea0001078d00 RSI: ffffea0001078c01 RDI: ffff88806cf41500 RBP: 0000000000000000 R08: 0000000000000000 R09: ffffed100d9e82a0 R10: ffff88806cf41503 R11: 00000000000007e0 R12: 0000000000000000 R13: ffff888040997928 R14: ffff88801a21b738 R15: ffff88801a21b738 kasan_quarantine_reduce+0x19c/0x230 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 __alloc_object+0x2f/0x270 __create_object+0x1d/0x80 kmem_cache_alloc_noprof+0x300/0x3d0 alloc_empty_file+0x76/0x1e0 path_openat+0xe1/0x2980 do_filp_open+0x369/0x410 do_sys_openat2+0x164/0x1d0 __x64_sys_openat+0x143/0x200 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1ed66ddb19 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:00007f1ed3c53188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f1ed67f0f60 RCX: 00007f1ed66ddb19 RDX: 0000000000054100 RSI: 0000000020000000 RDI: ffffffffffffff9c RBP: 00007f1ed6737f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe249b245f R14: 00007f1ed3c53300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at default_idle+0x1e/0x30 ---------------- Code disassembly (best guess): 0: 49 c7 c4 ea ff ff ff mov $0xffffffffffffffea,%r12 7: eb c7 jmp 0xffffffd0 9: e8 bc 98 43 03 callq 0x34398ca e: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1) 15: 00 00 00 18: 66 90 xchg %ax,%ax 1a: 90 nop 1b: 90 nop 1c: 90 nop 1d: 90 nop 1e: 90 nop 1f: 90 nop 20: 90 nop 21: 90 nop 22: 90 nop 23: 90 nop 24: 90 nop 25: 90 nop 26: 90 nop 27: 90 nop 28: 90 nop 29: 90 nop * 2a: f3 0f 1e fa endbr64 <-- trapping instruction 2e: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 35: fc ff df 38: 55 push %rbp 39: 53 push %rbx 3a: 48 89 fb mov %rdi,%rbx 3d: 48 rex.W 3e: 83 .byte 0x83 3f: c7 .byte 0xc7