lo: entered allmulticast mode watchdog: BUG: soft lockup - CPU#0 stuck for 21s! [syz-executor.4:8125] Modules linked in: irq event stamp: 2882079 hardirqs last enabled at (2882078): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2882079): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2849996): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2850017): [] __irq_exit_rcu+0xc4/0x100 CPU: 0 UID: 0 PID: 8125 Comm: syz-executor.4 Not tainted 6.12.0-next-20241128 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:core_kernel_text+0x82/0xa0 Code: 48 1d 05 01 76 0b 44 89 e0 5b 41 5c e9 e7 1c 65 03 48 81 fb 00 b0 d5 86 72 ec 48 81 fb 4a aa eb 86 73 e3 41 bc 01 00 00 00 5b <44> 89 e0 41 5c e9 c4 1c 65 03 48 c7 c7 c4 64 3f 86 e8 68 db 69 00 RSP: 0018:ffff88806ce09668 EFLAGS: 00000287 RAX: dffffc0000000000 RBX: ffffffff84871a84 RCX: ffffffff86bfd901 RDX: 1ffff1100d9c12e2 RSI: 0000000000000000 RDI: ffffffff84871a84 RBP: ffffffff84871a84 R08: ffffffff86bfd912 R09: ffff88806ce096f8 R10: 000000000003c001 R11: 00000000000c3d3e R12: 0000000000000001 R13: 0000000000000000 R14: ffff888045498000 R15: 0000000000000820 FS: 00007fbcbffbc700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000560fa6922618 CR3: 0000000013b04000 CR4: 0000000000350ef0 Call Trace: kernel_text_address+0x11/0xc0 __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_node_noprof+0x14c/0x3e0 __alloc_skb+0x2ad/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/0xa80 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:_raw_spin_unlock_irqrestore+0x34/0x50 Code: c7 18 53 48 89 f3 48 8b 74 24 10 e8 86 1c a9 fc 48 89 ef e8 5e 8f a9 fc 80 e7 02 74 06 e8 64 ee d2 fc fb 65 ff 0d 44 8c 7c 7b <74> 07 5b 5d e9 93 1e 00 00 0f 1f 44 00 00 5b 5d e9 87 1e 00 00 0f RSP: 0018:ffff88803fbff4f0 EFLAGS: 00000246 RAX: 00000000002b7cdf RBX: 0000000000000246 RCX: 1ffffffff0fdfeb6 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff84871a7c RBP: ffff888008c4e900 R08: 0000000000000001 R09: fffffbfff0fdddf1 R10: ffffffff87eeef8f R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: ffff888008c4f780 R15: 0000000000000246 __put_partials+0xc4/0x110 qlist_free_all+0x50/0x160 kasan_quarantine_reduce+0x19f/0x240 __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 mas_alloc_nodes+0x1f2/0x8b0 mas_node_count_gfp+0x106/0x140 mas_preallocate+0x1c1/0x590 __split_vma+0x2f7/0xfc0 vms_gather_munmap_vmas+0x326/0x10c0 do_vmi_align_munmap+0x25c/0x550 do_vmi_munmap+0x1eb/0x3c0 do_munmap+0xbe/0x100 __do_sys_mremap+0xa92/0x1570 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fbcc2a46b19 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:00007fbcbffbc188 EFLAGS: 00000246 ORIG_RAX: 0000000000000019 RAX: ffffffffffffffda RBX: 00007fbcc2b59f60 RCX: 00007fbcc2a46b19 RDX: 0000000000001000 RSI: 0000000000002000 RDI: 0000000020ffb000 RBP: 00007fbcc2aa0f6d R08: 0000000020fff000 R09: 0000000000000000 R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc37deb27f R14: 00007fbcbffbc300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at default_idle+0x1e/0x30 ---------------- Code disassembly (best guess): 0: 48 1d 05 01 76 0b sbb $0xb760105,%rax 6: 44 89 e0 mov %r12d,%eax 9: 5b pop %rbx a: 41 5c pop %r12 c: e9 e7 1c 65 03 jmpq 0x3651cf8 11: 48 81 fb 00 b0 d5 86 cmp $0xffffffff86d5b000,%rbx 18: 72 ec jb 0x6 1a: 48 81 fb 4a aa eb 86 cmp $0xffffffff86ebaa4a,%rbx 21: 73 e3 jae 0x6 23: 41 bc 01 00 00 00 mov $0x1,%r12d 29: 5b pop %rbx * 2a: 44 89 e0 mov %r12d,%eax <-- trapping instruction 2d: 41 5c pop %r12 2f: e9 c4 1c 65 03 jmpq 0x3651cf8 34: 48 c7 c7 c4 64 3f 86 mov $0xffffffff863f64c4,%rdi 3b: e8 68 db 69 00 callq 0x69dba8