watchdog: BUG: soft lockup - CPU#1 stuck for 26s! [syz-executor.2:30211] Modules linked in: irq event stamp: 5396425 hardirqs last enabled at (5396424): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (5396425): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (5390850): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (5390853): [] __irq_exit_rcu+0x11b/0x180 CPU: 1 PID: 30211 Comm: syz-executor.2 Not tainted 6.2.0-rc3-next-20230111 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__rcu_read_unlock+0x31/0x520 Code: 55 41 54 55 65 48 8b 2c 25 80 89 03 00 53 48 8d bd f4 03 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 14 02 <48> 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 0d 02 00 00 65 RSP: 0018:ffff88806cf09658 EFLAGS: 00000217 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000100 RDX: 0000000000000000 RSI: ffffffff8149f41a RDI: ffff88804aa683f4 RBP: ffff88804aa68000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: ffffffff85651948 R15: 00000000000000f0 FS: 00007f20a130a700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc943f1bfd0 CR3: 0000000047116000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: __is_insn_slot_addr+0x12f/0x290 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_slab_alloc+0x59/0x70 kmem_cache_alloc+0x172/0x300 __create_object+0x3d/0xc40 kmem_cache_alloc_node+0x215/0x310 __alloc_skb+0x21a/0x310 __netdev_alloc_skb+0x76/0x3e0 __ieee80211_beacon_get+0x3d9/0x13c0 ieee80211_beacon_get_tim+0x99/0x540 mac80211_hwsim_beacon_tx+0x1d2/0xb10 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xcb0 hrtimer_run_softirq+0x176/0x350 __do_softirq+0x1c7/0x913 __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:__es_insert_extent+0x3d3/0x12f0 Code: 48 89 c3 48 85 c0 0f 84 2b 0f 00 00 e8 d6 bd 9d ff 48 8d 7b 18 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 <84> c0 74 08 3c 03 0f 8e a4 0e 00 00 48 8d 7b 1c 44 89 73 18 48 b8 RSP: 0018:ffff888039017790 EFLAGS: 00000212 RAX: 0000000000000000 RBX: ffff888044572230 RCX: ffffc90007e46000 RDX: 1ffff110088ae449 RSI: ffffffff81abb87a RDI: ffff888044572248 RBP: ffff88801b847ee0 R08: 00000000ffffffff R09: ffffffff8765595f R10: fffffbfff0ecab2b R11: 0000000000000001 R12: 080000000000305f R13: 0000000000000001 R14: 0000000000000000 R15: ffff88801b847ef0 ext4_es_insert_extent+0x2db/0xc20 ext4_map_blocks+0xa0d/0x19e0 ext4_getblk+0x604/0x7b0 ext4_bread+0x2e/0x1a0 ext4_append+0x21d/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: 0033:0x7f20a3d93c27 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:00007f20a1309fa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f20a3d93c27 RDX: 0000000000000000 RSI: 00000000000001ff RDI: 0000000020000100 RBP: 00007f20a130a040 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000020000100 R14: 00007f20a130a000 R15: 0000000000000000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at default_idle+0xf/0x20 audit: type=1326 audit(1673438719.201:41): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=30357 comm="syz-executor.6" exe="/syz-executor.6" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7f642e7beb19 code=0x0 ---------------- Code disassembly (best guess): 0: 55 push %rbp 1: 41 54 push %r12 3: 55 push %rbp 4: 65 48 8b 2c 25 80 89 mov %gs:0x38980,%rbp b: 03 00 d: 53 push %rbx e: 48 8d bd f4 03 00 00 lea 0x3f4(%rbp),%rdi 15: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 1c: fc ff df 1f: 48 89 fa mov %rdi,%rdx 22: 48 c1 ea 03 shr $0x3,%rdx 26: 0f b6 14 02 movzbl (%rdx,%rax,1),%edx * 2a: 48 89 f8 mov %rdi,%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 08 jl 0x3f 37: 84 d2 test %dl,%dl 39: 0f 85 0d 02 00 00 jne 0x24c 3f: 65 gs