watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.4:25151] Modules linked in: irq event stamp: 7255303 hardirqs last enabled at (7255302): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (7255303): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (7235612): [] irq_exit_rcu+0x93/0xc0 softirqs last disabled at (7235615): [] irq_exit_rcu+0x93/0xc0 CPU: 0 PID: 25151 Comm: syz-executor.4 Not tainted 6.5.0-rc6-next-20230817 #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 59 0c 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 bd fc 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:ffff88806ce097e0 EFLAGS: 00000216 RAX: 0000000000000103 RBX: ffffffff85e321e0 RCX: ffffffff8113aba4 RDX: ffff88803a0ed1c0 RSI: 0000000000000100 RDI: 0000000000000006 RBP: ffffffff85e32200 R08: 0000000000000006 R09: ffffffff819d98a0 R10: ffffffff819d9866 R11: 0000000000000001 R12: ffffffff819d98a0 R13: ffffffff819d9866 R14: dffffc0000000000 R15: ffffffff85e321f0 FS: 00007f838a3d1700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe36e6e2b58 CR3: 0000000039e64000 CR4: 0000000000350ef0 Call Trace: __orc_find+0x63/0x130 unwind_next_frame+0x31d/0x25d0 arch_stack_walk+0xe6/0x160 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 __kasan_record_aux_stack+0x8e/0xa0 __call_rcu_common.constprop.0+0x6a/0xbd0 kmem_cache_free+0xc1/0x4d0 kfree_skbmem+0xef/0x1b0 consume_skb+0x126/0x2e0 mac80211_hwsim_tx_frame+0x1f6/0x2a0 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:perf_trace_lock_acquire+0xbc/0x500 Code: 48 89 45 d0 31 c0 48 8d 46 18 48 89 85 40 ff ff ff 48 c1 e8 03 80 3c 10 00 0f 85 2e 03 00 00 48 8b 85 50 ff ff ff 48 8b 78 18 <48> c7 c0 80 1a 87 84 48 85 ff 48 0f 44 f8 e8 f1 b2 29 03 49 8d 7f RSP: 0018:ffff88803a65f408 EFLAGS: 00000246 RAX: ffff888038c775b8 RBX: 1ffff110074cbea3 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: ffff888038c775b8 RDI: ffffffff84857180 RBP: ffff88803a65f4e8 R08: 0000000000000000 R09: 0000000000000001 R10: ffffffff85d51c57 R11: 0000000000000001 R12: 0000000000000000 R13: 1ffff110074cbe88 R14: ffff88803a65f4c0 R15: ffffffff85511d80 lock_acquire+0x416/0x4c0 _raw_spin_lock+0x2b/0x40 __pte_offset_map_lock+0x121/0x340 unmap_page_range+0x805/0x2300 unmap_single_vma+0x19a/0x2b0 unmap_vmas+0x1b2/0x300 unmap_region.constprop.0+0x1f3/0x3d0 do_vmi_align_munmap.constprop.0+0xaca/0x11b0 do_vmi_munmap+0x1e7/0x430 __vm_munmap+0x137/0x370 kill_ioctx+0x261/0x2f0 __x64_sys_io_destroy+0x113/0x1b0 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 RIP: 0033:0x7f838ce5bb19 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:00007f838a3d1188 EFLAGS: 00000246 ORIG_RAX: 00000000000000cf RAX: ffffffffffffffda RBX: 00007f838cf6ef60 RCX: 00007f838ce5bb19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007f838a3a0000 RBP: 00007f838ceb5f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff4a5286df R14: 00007f838a3d1300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at default_idle+0x1e/0x30 hpet: Lost 7 RTC interrupts syz-executor.6[25241]: memfd_create() called without MFD_EXEC or MFD_NOEXEC_SEAL set ---------------- Code disassembly (best guess), 1 bytes skipped: 0: e9 59 0c 0f 03 jmpq 0x30f0c5e 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 bd fc b5 7e mov %gs:0x7eb5fcbd(%rip),%eax # 0x7eb5fce6 * 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