watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.6:12856] Modules linked in: irq event stamp: 5131203 hardirqs last enabled at (5131202): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (5131203): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (5068620): [] irq_exit_rcu+0x93/0xc0 softirqs last disabled at (5068623): [] irq_exit_rcu+0x93/0xc0 CPU: 0 PID: 12856 Comm: syz-executor.6 Not tainted 6.5.0-rc7-next-20230821 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__sanitizer_cov_trace_pc+0xb/0x70 Code: c0 e9 49 7b 0f 03 66 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 65 8b 05 6d fb b5 7e <89> c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b 14 25 80 8d 03 00 a9 RSP: 0018:ffff88806ce09720 EFLAGS: 00000246 RAX: 0000000000000102 RBX: ffff88806ce097a8 RCX: 0000000000000100 RDX: 1ffff1100d9c12ff RSI: ffffffff8113aab9 RDI: ffff88806ce097f8 RBP: 0000000000000001 R08: ffff88806ce097e8 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000002 R13: ffff88806ce09db8 R14: ffff88806ce09de0 R15: 0000000000000001 FS: 00007fcf6df0a700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005618684d3f80 CR3: 00000000430ae000 CR4: 0000000000350ef0 Call Trace: unwind_next_frame+0x117c/0x25d0 arch_stack_walk+0xe6/0x160 stack_trace_save+0x90/0xd0 set_track_prepare+0x74/0xd0 __create_object+0x3b2/0xc90 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:should_failslab+0x4/0x20 Code: 5b e9 f0 47 c2 ff e8 6b b2 eb 02 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 f7 b4 14 00 3c 01 19 c0 f7 d0 83 e0 f4 e9 b9 4c ee 02 66 0f 1f RSP: 0018:ffff888042bdf6f8 EFLAGS: 00000246 RAX: 0000000000000001 RBX: 0000000000092cc0 RCX: ffffffff812422c3 RDX: ffffed10029ff6f1 RSI: 0000000000092cc0 RDI: ffff88800844f780 RBP: ffff888042bdf748 R08: 0000000000000001 R09: ffffed10029ff6f0 R10: ffff888014ffb783 R11: 0000000000000001 R12: ffff88800844f780 R13: 0000000000000000 R14: 0000000000092cc0 R15: ffffffff8186e4fc kmem_cache_alloc+0x61/0x390 __create_object+0x3c/0xc90 kmem_cache_alloc_lru+0x2ec/0x680 proc_alloc_inode+0x27/0x210 alloc_inode+0x63/0x240 new_inode+0x1c/0x1e0 proc_pid_make_inode+0x26/0x1f0 proc_pident_instantiate+0x85/0x320 proc_pident_lookup+0x1e2/0x2c0 lookup_open.isra.0+0x745/0x1400 path_openat+0x96c/0x2710 do_filp_open+0x1ba/0x410 do_sys_openat2+0x164/0x1d0 __x64_sys_openat+0x143/0x200 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 RIP: 0033:0x7fcf70947a04 Code: 84 00 00 00 00 00 44 89 54 24 0c e8 96 f9 ff ff 44 8b 54 24 0c 44 89 e2 48 89 ee 41 89 c0 bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 89 44 24 0c e8 c8 f9 ff ff 8b 44 RSP: 002b:00007fcf6df0a060 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fcf70aa7f60 RCX: 00007fcf70947a04 RDX: 0000000000000002 RSI: 00007fcf6df0a0f0 RDI: 00000000ffffff9c RBP: 00007fcf6df0a0f0 R08: 0000000000000000 R09: 00007fcf6df09f70 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002 R13: 00007fffc982238f R14: 00007fcf6df0a300 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-rc7-next-20230821 #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 8a 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: ffffffff845ceb3b RDX: fffffbfff0b4e5ed RSI: 0000000000000004 RDI: ffffffff85a72f60 RBP: ffffffff85a72f60 R08: 0000000000000000 R09: fffffbfff0b4e5ec R10: ffffffff85a72f63 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0b4e5ec R14: 0000000000000001 R15: 1ffff1100d9e1348 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff236a0e650 CR3: 0000000014e4c000 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+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 b9 fd 27 00 0f 1f 44 00 00 fb f4 e9 6c 7d 02 00 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 RSP: 0018:ffff888008de7e70 EFLAGS: 00000202 RAX: 00000000001befb5 RBX: 0000000000000001 RCX: ffffffff845a802e RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff81299955 RBP: dffffc0000000000 R08: 0000000000000001 R09: ffffed100d9e6a08 R10: ffff88806cf35043 R11: 0000000000000001 R12: ffffffff85d52150 R13: 1ffff110011bcfd3 R14: 0000000000000000 R15: 0000000000000000 default_idle_call+0x67/0xa0 do_idle+0x305/0x3c0 cpu_startup_entry+0x18/0x20 start_secondary+0x1bf/0x220 secondary_startup_64_no_verify+0x178/0x17b ---------------- Code disassembly (best guess), 1 bytes skipped: 0: e9 49 7b 0f 03 jmpq 0x30f7b4e 5: 66 0f 1f 84 00 00 00 nopw 0x0(%rax,%rax,1) c: 00 00 e: 90 nop f: 90 nop 10: 90 nop 11: 90 nop 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: f3 0f 1e fa endbr64 22: 65 8b 05 6d fb b5 7e mov %gs:0x7eb5fb6d(%rip),%eax # 0x7eb5fb96 * 29: 89 c1 mov %eax,%ecx <-- trapping instruction 2b: 48 8b 34 24 mov (%rsp),%rsi 2f: 81 e1 00 01 00 00 and $0x100,%ecx 35: 65 48 8b 14 25 80 8d mov %gs:0x38d80,%rdx 3c: 03 00 3e: a9 .byte 0xa9