watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.7:60106] Modules linked in: irq event stamp: 5025399 hardirqs last enabled at (5025398): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (5025399): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (5019152): [] irq_exit_rcu+0x93/0xc0 softirqs last disabled at (5019165): [] irq_exit_rcu+0x93/0xc0 CPU: 0 PID: 60106 Comm: syz-executor.7 Not tainted 6.5.0-rc5-next-20230807 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__orc_find+0x6f/0xf0 Code: 72 4d 4c 89 e0 48 29 e8 48 89 c2 48 c1 e8 3f 48 c1 fa 02 48 01 d0 48 d1 f8 48 8d 5c 85 00 48 89 d8 48 c1 e8 03 42 0f b6 14 38 <48> 89 d8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 50 48 63 03 48 01 RSP: 0018:ffff88806ce094f0 EFLAGS: 00000213 RAX: 1ffffffff0bb3870 RBX: ffffffff85d9c384 RCX: ffffffff810bde12 RDX: 0000000000000000 RSI: ffffffff860a770a RDI: ffffffff85d9c378 RBP: ffffffff85d9c378 R08: ffffffff860a770a R09: ffff88806ce09638 R10: 0000000000038001 R11: 0000000000003c83 R12: ffffffff85d9c390 R13: ffffffff85d9c378 R14: ffffffff85d9c378 R15: dffffc0000000000 FS: 00007f98a0905700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020005038 CR3: 0000000045a46000 CR4: 0000000000350ef0 Call Trace: unwind_next_frame+0x2b1/0x2490 __unwind_start+0x513/0x7c0 arch_stack_walk+0x63/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 __kasan_slab_alloc+0x59/0x70 kmem_cache_alloc+0x17b/0x390 __create_object+0x3c/0xc90 kmem_cache_alloc_node+0x23d/0x3b0 __alloc_skb+0x28c/0x330 skb_copy+0x13d/0x3f0 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb11/0x1330 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x427/0x730 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x59d/0xb60 hrtimer_run_softirq+0x14c/0x310 __do_softirq+0x1b7/0x7d4 irq_exit_rcu+0x93/0xc0 sysvec_apic_timer_interrupt+0x6e/0x90 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:put_cpu_partial+0x107/0x1b0 Code: 39 45 28 75 5e 48 c7 45 28 00 00 00 00 48 c7 c6 72 cb 81 81 48 89 ef e8 17 22 ac ff 48 85 db 74 06 e8 7d 2f d2 ff fb 4d 85 f6 <74> 1e 5b 4c 89 f6 5d 4c 89 e7 41 5c 41 5d 41 5e 41 5f e9 12 fa ff RSP: 0018:ffff888045a76df0 EFLAGS: 00000246 RAX: 00000000004c961b RBX: 0000000000000200 RCX: ffffffff812d4b1f RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8181cb93 RBP: ffff88806ce3e0a0 R08: 0000000000000001 R09: fffffbfff0ee7d65 R10: ffffffff8773eb2f R11: 0000000000000001 R12: ffff88800844f780 R13: ffffea0000d50800 R14: 0000000000000000 R15: 0000000000000004 qlist_free_all+0x6d/0x1a0 kasan_quarantine_reduce+0x199/0x230 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc_node+0x199/0x3b0 __alloc_skb+0x28c/0x330 alloc_skb_with_frags+0x92/0x670 sock_alloc_send_pskb+0x7d2/0x960 __ip_append_data+0x1c8a/0x3d10 ip_make_skb+0x22e/0x2a0 udp_sendmsg+0x18fa/0x2110 udpv6_sendmsg+0x1792/0x2a50 inet6_sendmsg+0x109/0x150 sock_sendmsg+0xf8/0x200 ____sys_sendmsg+0x34d/0x9a0 ___sys_sendmsg+0x110/0x1b0 __sys_sendmmsg+0x18f/0x460 __x64_sys_sendmmsg+0x9d/0x110 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 RIP: 0033:0x7f98a338fb19 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:00007f98a0905188 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007f98a34a2f60 RCX: 00007f98a338fb19 RDX: 0000000004000101 RSI: 0000000020002880 RDI: 0000000000000007 RBP: 00007f98a33e9f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffbca83aef R14: 00007f98a0905300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.5.0-rc5-next-20230807 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:queued_spin_lock_slowpath+0x128/0xb20 Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 5c 09 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 7a 21 00 00 f3 90 71 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e4 00 00 RSP: 0018:ffff88806cf09a38 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff845cdb8b RDX: fffffbfff0b4e09d RSI: 0000000000000004 RDI: ffffffff85a704e0 RBP: ffffffff85a704e0 R08: 0000000000000000 R09: fffffbfff0b4e09c R10: ffffffff85a704e3 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0b4e09c R14: 0000000000000001 R15: 1ffff1100d9e1348 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000560adc60bc88 CR3: 00000000097d2000 CR4: 0000000000350ee0 Call Trace: do_raw_spin_lock+0x1e0/0x270 mac80211_hwsim_tx_frame_no_nl.isra.0+0x6e7/0x1330 mac80211_hwsim_tx_frame+0x1ee/0x2a0 mac80211_hwsim_beacon_tx+0x427/0x730 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x59d/0xb60 hrtimer_run_softirq+0x14c/0x310 __do_softirq+0x1b7/0x7d4 irq_exit_rcu+0x93/0xc0 sysvec_apic_timer_interrupt+0x6e/0x90 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:default_idle+0xf/0x20 Code: 4c 01 c7 4c 29 c2 e9 72 ff ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 07 0f 00 2d e3 fe 27 00 fb f4 e9 7b 7b 02 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 RSP: 0018:ffff888008e0fe70 EFLAGS: 00000206 RAX: 0000000000dbeeff RBX: 0000000000000001 RCX: ffffffff845a726e RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8128e0b5 RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed100d9e6a00 R10: ffff88806cf35003 R11: 0000000000000001 R12: ffffffff85d4eb50 R13: 1ffff110011c1fd3 R14: 0000000000000000 R15: 0000000000000000 default_idle_call+0x67/0xa0 do_idle+0x305/0x3c0 cpu_startup_entry+0x18/0x20 start_secondary+0x1ba/0x210 secondary_startup_64_no_verify+0x179/0x17b ---------------- Code disassembly (best guess): 0: 72 4d jb 0x4f 2: 4c 89 e0 mov %r12,%rax 5: 48 29 e8 sub %rbp,%rax 8: 48 89 c2 mov %rax,%rdx b: 48 c1 e8 3f shr $0x3f,%rax f: 48 c1 fa 02 sar $0x2,%rdx 13: 48 01 d0 add %rdx,%rax 16: 48 d1 f8 sar %rax 19: 48 8d 5c 85 00 lea 0x0(%rbp,%rax,4),%rbx 1e: 48 89 d8 mov %rbx,%rax 21: 48 c1 e8 03 shr $0x3,%rax 25: 42 0f b6 14 38 movzbl (%rax,%r15,1),%edx * 2a: 48 89 d8 mov %rbx,%rax <-- trapping instruction 2d: 83 e0 07 and $0x7,%eax 30: 83 c0 03 add $0x3,%eax 33: 38 d0 cmp %dl,%al 35: 7c 04 jl 0x3b 37: 84 d2 test %dl,%dl 39: 75 50 jne 0x8b 3b: 48 63 03 movslq (%rbx),%rax 3e: 48 rex.W 3f: 01 .byte 0x1