FAT-fs (loop7): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [syz-executor.1:5527] Modules linked in: irq event stamp: 4863127 hardirqs last enabled at (4863126): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (4863127): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (4844268): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (4844271): [] __irq_exit_rcu+0x11b/0x180 CPU: 0 PID: 5527 Comm: syz-executor.1 Not tainted 6.2.0-rc1-next-20221226 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:lock_is_held_type+0xfc/0x130 Code: 40 02 87 84 e8 b5 0e 00 00 b8 ff ff ff ff 65 0f c1 05 10 e7 c3 7b 83 f8 01 75 26 48 f7 04 24 00 02 00 00 74 01 fb 48 83 c4 08 <44> 89 e8 5b 5d 41 5c 41 5d 41 5e 41 5f e9 06 39 02 00 45 31 ed eb RSP: 0018:ffff88806ce09728 EFLAGS: 00000286 RAX: 0000000000000001 RBX: 0000000000000005 RCX: 0000000000000001 RDX: 0000000000000000 RSI: 0000000000000101 RDI: 0000000000000000 RBP: ffffffff85608520 R08: 0000000000000000 R09: ffffffff85d09417 R10: fffffbfff0ba1282 R11: 0000000000000001 R12: ffff88800cec5040 R13: 0000000000000000 R14: 00000000ffffffff R15: ffff88800cec5a40 FS: 00007f90f629e700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f31d3e48fe8 CR3: 0000000014422000 CR4: 0000000000350ef0 Call Trace: rcu_read_lock_sched_held+0x42/0x80 trace_lock_acquire+0x14c/0x1c0 lock_acquire+0x32/0xc0 __is_insn_slot_addr+0x41/0x250 kernel_text_address+0x48/0xc0 __kernel_text_address+0xd/0x40 unwind_get_return_address+0x59/0xa0 arch_stack_walk+0x9d/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 kasan_save_free_info+0x2e/0x50 __kasan_slab_free+0x10a/0x190 __kmem_cache_free+0xcf/0x410 skb_release_data+0x6d8/0x810 consume_skb+0xcb/0x170 mac80211_hwsim_tx_frame+0x1f6/0x2a0 mac80211_hwsim_beacon_tx+0x566/0xab0 __iterate_interfaces+0x2d3/0x560 ieee80211_iterate_active_interfaces_atomic+0x74/0x180 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xc70 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x1c7/0x8f9 __irq_exit_rcu+0x11b/0x180 irq_exit_rcu+0x9/0x30 sysvec_apic_timer_interrupt+0x92/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:kasan_quarantine_put+0x91/0x1f0 Code: c7 45 00 00 00 00 00 48 03 58 10 48 89 58 10 48 81 fb 00 00 10 00 77 63 41 bc 01 00 00 00 4d 85 ed 74 43 e8 d1 f3 d2 ff fb 5b <44> 89 e0 5d 41 5c 41 5d 41 5e e9 04 dc c3 02 e8 fb f4 d2 ff 48 c7 RSP: 0018:ffff88804649f750 EFLAGS: 00000206 RAX: 0000000000373e17 RBX: ffff88802068fb00 RCX: ffffffff812b3b2f RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff88802068fb00 R08: 0000000000000001 R09: ffffffff8763291f R10: fffffbfff0ec6523 R11: 0000000000000001 R12: 0000000000000001 R13: 0000000000000200 R14: ffff88802068fb00 R15: ffff888008441780 __kmem_cache_free+0xcf/0x410 ext4_ext_map_blocks+0x9b7/0x5d40 ext4_map_blocks+0xb15/0x19e0 ext4_append+0x1af/0x530 ext4_init_new_dir+0x262/0x4c0 ext4_mkdir+0x3d3/0xb20 vfs_mkdir+0x495/0x740 do_mkdirat+0x16e/0x2d0 __x64_sys_mkdir+0xf6/0x150 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f90f8d27c27 Code: 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 53 00 00 00 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:00007f90f629dfa8 EFLAGS: 00000213 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 0000000020000040 RCX: 00007f90f8d27c27 RDX: 0000000000000007 RSI: 00000000000001ff RDI: 00000000200000c0 RBP: 00007f90f629e040 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000213 R12: 0000000020000000 R13: 00000000200000c0 R14: 00007f90f629e000 R15: 0000000020000040 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at default_idle+0xf/0x20 ---------------- Code disassembly (best guess): 0: 40 02 87 84 e8 b5 0e add 0xeb5e884(%rdi),%al 7: 00 00 add %al,(%rax) 9: b8 ff ff ff ff mov $0xffffffff,%eax e: 65 0f c1 05 10 e7 c3 xadd %eax,%gs:0x7bc3e710(%rip) # 0x7bc3e726 15: 7b 16: 83 f8 01 cmp $0x1,%eax 19: 75 26 jne 0x41 1b: 48 f7 04 24 00 02 00 testq $0x200,(%rsp) 22: 00 23: 74 01 je 0x26 25: fb sti 26: 48 83 c4 08 add $0x8,%rsp * 2a: 44 89 e8 mov %r13d,%eax <-- trapping instruction 2d: 5b pop %rbx 2e: 5d pop %rbp 2f: 41 5c pop %r12 31: 41 5d pop %r13 33: 41 5e pop %r14 35: 41 5f pop %r15 37: e9 06 39 02 00 jmpq 0x23942 3c: 45 31 ed xor %r13d,%r13d 3f: eb .byte 0xeb