watchdog: BUG: soft lockup - CPU#0 stuck for 21s! [syz-executor.0:4704] Modules linked in: irq event stamp: 5545243 hardirqs last enabled at (5545242): [] asm_sysvec_irq_work+0x1a/0x20 hardirqs last disabled at (5545243): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (5533786): [] __irq_exit_rcu+0xcc/0x110 softirqs last disabled at (5533789): [] __irq_exit_rcu+0xcc/0x110 CPU: 0 PID: 4704 Comm: syz-executor.0 Not tainted 6.3.0-rc2-next-20230314 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:debug_check_no_locks_freed+0x4/0x2c0 Code: 2c b0 d2 85 e8 2d 1b 54 00 e9 df fe ff ff 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa <41> 57 48 c7 c0 30 b0 d2 85 48 ba 00 00 00 00 00 fc ff df 41 56 48 RSP: 0018:ffff88806ce09968 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: ffff888044ce3980 RCX: 0000000000000002 RDX: ffffffff87b34b40 RSI: 0000000000000040 RDI: ffff888044ce3980 RBP: ffffffff848fe7e0 R08: 0000000000000000 R09: ffff8880456aa418 R10: fffffbfff0ba53da R11: 0000000000000001 R12: ffffffff87b34b40 R13: 0000000000000002 R14: ffff888044ce39c8 R15: ffff888044ce3980 FS: 00007fee41951700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fee41930718 CR3: 000000001854e000 CR4: 0000000000350ef0 Call Trace: __raw_spin_lock_init+0x20/0x110 __create_object+0x121/0xc90 kmem_cache_alloc_node+0x21f/0x330 kmalloc_reserve+0x169/0x270 __alloc_skb+0x129/0x330 skb_copy+0x13d/0x3f0 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb08/0x1330 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x566/0xb10 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xcb0 hrtimer_run_softirq+0x14c/0x310 __do_softirq+0x258/0x8a2 __irq_exit_rcu+0xcc/0x110 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x6e/0x90 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:___cache_free+0x3d/0xf0 Code: 0f 82 c2 00 00 00 48 c7 c2 00 00 00 80 48 2b 15 11 1a aa 03 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 ef 19 aa 03 48 8b 50 08 <49> 89 c2 f6 c2 01 0f 85 87 00 00 00 66 90 49 8b 02 f6 c4 02 b8 00 RSP: 0018:ffff88801966f078 EFLAGS: 00000286 RAX: ffffea00003c3ac0 RBX: ffff88800f0eb4c0 RCX: ffff88800f0eb4c0 RDX: ffff88800844f780 RSI: ffff88800f0eb4c0 RDI: ffff88800844f780 RBP: 0000000000000000 R08: ffff88800f0eb4c0 R09: ffffffff818099cf R10: ffffea0001228940 R11: 0000000000000000 R12: dffffc0000000000 R13: ffff88801966f0c8 R14: ffff88800844f780 R15: ffff88800f0eb4c0 qlist_free_all+0x6d/0x1a0 kasan_quarantine_reduce+0x199/0x230 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc_node+0x187/0x330 __alloc_skb+0x28c/0x330 alloc_skb_with_frags+0x96/0x630 sock_alloc_send_pskb+0x7d2/0x960 __ip6_append_data.isra.0+0x21f4/0x4300 ip6_make_skb+0x2a0/0x4b0 udpv6_sendmsg+0x1e1a/0x2990 inet6_sendmsg+0x109/0x150 sock_sendmsg+0xf8/0x200 ____sys_sendmsg+0x337/0x980 ___sys_sendmsg+0x110/0x1b0 __sys_sendmmsg+0x18f/0x460 __x64_sys_sendmmsg+0x9d/0x110 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7fee443dbb19 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:00007fee41951188 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007fee444eef60 RCX: 00007fee443dbb19 RDX: 0000000004000101 RSI: 0000000020002880 RDI: 0000000000000006 RBP: 00007fee44435f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc8fba895f R14: 00007fee41951300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at default_idle+0xf/0x20 ---------------- Code disassembly (best guess), 4 bytes skipped: 0: e8 2d 1b 54 00 callq 0x541b32 5: e9 df fe ff ff jmpq 0xfffffee9 a: 0f 1f 84 00 00 00 00 nopl 0x0(%rax,%rax,1) 11: 00 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: 90 nop 1c: 90 nop 1d: 90 nop 1e: 90 nop 1f: 90 nop 20: 90 nop 21: 90 nop 22: f3 0f 1e fa endbr64 * 26: 41 57 push %r15 <-- trapping instruction 28: 48 c7 c0 30 b0 d2 85 mov $0xffffffff85d2b030,%rax 2f: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx 36: fc ff df 39: 41 56 push %r14 3b: 48 rex.W