rcu_tasks_wait_gp: rcu_tasks grace period number 49 (since boot) is 10435 jiffies old. watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor.0:13257] Modules linked in: irq event stamp: 2167069 hardirqs last enabled at (2167068): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2167069): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2133306): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2133325): [] __irq_exit_rcu+0xc4/0x100 CPU: 0 UID: 0 PID: 13257 Comm: syz-executor.0 Not tainted 6.12.0-next-20241126 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:kernel_text_address+0x1e/0xc0 Code: 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 55 48 89 fd 48 83 ec 08 e8 3f ff ff ff 85 c0 74 0f b8 01 00 00 00 48 83 c4 08 <5d> e9 6c 2c 65 03 e8 e7 32 17 00 84 c0 74 33 48 89 ef e8 fb 54 1c RSP: 0018:ffff88806ce09680 EFLAGS: 00000292 RAX: 0000000000000001 RBX: ffffffff839019ea RCX: 0000000000000001 RDX: 1ffff1100d9c12e2 RSI: ffff88806ce09b40 RDI: ffffffff839019ea RBP: ffffffff839019ea R08: 0000000000000001 R09: ffff88806ce096f8 R10: 000000000003c001 R11: 0000000000095b3b R12: ffff88806ce09780 R13: 0000000000000000 R14: ffff888034d6d280 R15: 0000000000000820 FS: 00007fd802b8a700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055e143c32ce8 CR3: 000000001ae5c000 CR4: 0000000000350ef0 Call Trace: __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/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 e4 92 ab ff 4d 85 ed 74 06 e8 6a 5f 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:ffff88803e337400 EFLAGS: 00000246 RAX: 0000000000208d4b RBX: ffffea00003672c0 RCX: 1ffffffff0fe00b6 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8184a5e6 RBP: ffff888008c4f780 R08: 0000000000000001 R09: fffffbfff0fddff1 R10: ffffffff87eeff8f R11: 00000000000007e0 R12: ffff88806ce40350 R13: 0000000000000200 R14: 0000000000000000 R15: ffff88800d9cb000 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 jbd2__journal_start+0x193/0x6b0 __ext4_journal_start_sb+0x183/0x600 __ext4_new_inode+0x2d1e/0x4df0 ext4_create+0x2e3/0x4e0 lookup_open.isra.0+0x1133/0x1550 path_openat+0xc91/0x2980 do_filp_open+0x1e9/0x450 do_sys_openat2+0x164/0x1d0 __x64_sys_openat+0x143/0x200 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fd805635b19 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:00007fd802b8a188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fd805749020 RCX: 00007fd805635b19 RDX: 00000000001c1a42 RSI: 0000000020000100 RDI: ffffffffffffff9c RBP: 00007fd80568ff6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffeec78ad5f R14: 00007fd802b8a300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.12.0-next-20241126 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0xa75/0x2490 Code: 24 20 48 89 4c 24 18 48 89 74 24 10 e8 c4 f3 ff ff 4d 8d 4f 40 84 c0 0f 84 9e f8 ff ff 48 8b 74 24 10 48 89 f7 e8 ab eb ff ff <48> 89 ef 48 8b 74 24 10 48 ba 00 00 00 00 00 fc ff df 48 c1 ef 03 RSP: 0018:ffff88806cf097a8 EFLAGS: 00000202 RAX: ffffffff8484f1b0 RBX: 0000000000000002 RCX: 0000000000000002 RDX: ffff88806cf09f01 RSI: ffff88806cf09ff0 RDI: ffff88806cf09ff0 RBP: ffff88806cf09870 R08: ffffffff86796abe R09: ffff88806cf09858 R10: 000000000003c001 R11: 0000000000008053 R12: ffff88806cf09878 R13: ffff88806cf09860 R14: ffff88806cf09ff8 R15: ffff88806cf09818 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd6447258d8 CR3: 00000000191a4000 CR4: 0000000000350ef0 Call Trace: arch_stack_walk+0x87/0xf0 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 skb_release_data+0x814/0x990 consume_skb+0xd0/0x160 mac80211_hwsim_tx_frame+0x1f6/0x2a0 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 e9 70 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:ffff8880096cfe68 EFLAGS: 00000206 RAX: 00000000003040d1 RBX: 0000000000000001 RCX: ffffffff84850af7 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff812b10ea RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed100d9e6cba R10: ffff88806cf365d3 R11: 0000000000000000 R12: ffffffff863f9d10 R13: 1ffff110012d9fd2 R14: 0000000000000000 R15: 0000000000000000 default_idle_call+0x6d/0xb0 do_idle+0x2fa/0x3b0 cpu_startup_entry+0x4f/0x60 start_secondary+0x1c1/0x220 common_startup_64+0x12c/0x138 ---------------- Code disassembly (best guess): 0: 90 nop 1: 90 nop 2: 90 nop 3: 90 nop 4: 90 nop 5: 90 nop 6: 90 nop 7: 90 nop 8: 90 nop 9: 90 nop a: 90 nop b: 90 nop c: 66 0f 1f 00 nopw (%rax) 10: 55 push %rbp 11: 48 89 fd mov %rdi,%rbp 14: 48 83 ec 08 sub $0x8,%rsp 18: e8 3f ff ff ff callq 0xffffff5c 1d: 85 c0 test %eax,%eax 1f: 74 0f je 0x30 21: b8 01 00 00 00 mov $0x1,%eax 26: 48 83 c4 08 add $0x8,%rsp * 2a: 5d pop %rbp <-- trapping instruction 2b: e9 6c 2c 65 03 jmpq 0x3652c9c 30: e8 e7 32 17 00 callq 0x17331c 35: 84 c0 test %al,%al 37: 74 33 je 0x6c 39: 48 89 ef mov %rbp,%rdi 3c: e8 .byte 0xe8 3d: fb sti 3e: 54 push %rsp 3f: 1c .byte 0x1c