watchdog: BUG: soft lockup - CPU#0 stuck for 27s! [syz-executor.5:10377] Modules linked in: irq event stamp: 5207357 hardirqs last enabled at (5207356): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (5207357): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (5153476): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (5153479): [] __irq_exit_rcu+0x11b/0x180 CPU: 0 PID: 10377 Comm: syz-executor.5 Not tainted 6.2.0-rc3-next-20230109 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0x92e/0x2130 Code: b6 40 1f 03 e8 d3 c6 6a 00 e9 24 f7 ff ff 4c 89 e7 e8 66 c6 6a 00 e9 16 f8 ff ff 0f 1f 44 00 00 e9 b1 fa ff ff 48 8b 44 24 18 08 00 00 00 4c 89 f7 4c 89 4c 24 30 4c 89 44 24 28 48 8d 70 f8 RSP: 0018:ffff88806ce09808 EFLAGS: 00000246 RAX: ffff88801baf7bb0 RBX: 0000000000000001 RCX: ffff88801baf7b80 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000001 RBP: ffff88806ce098e0 R08: ffffffff8613bd4c R09: ffffffff8613bd50 R10: ffff88806ce09ff8 R11: 0000000000038001 R12: ffff88806ce098c9 R13: ffff88806ce098e8 R14: ffff88806ce09888 R15: ffffffff8613bd51 FS: 00007fd05f040700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020fff000 CR3: 000000001f71a000 CR4: 0000000000350ef0 Call Trace: arch_stack_walk+0x87/0xf0 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+0xd1/0x2f0 skb_release_data+0x6d8/0x810 consume_skb+0xcb/0x170 mac80211_hwsim_tx_frame+0x1f6/0x2a0 mac80211_hwsim_beacon_tx+0x566/0xb10 __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:put_cpu_partial+0x115/0x1c0 Code: 39 43 28 75 61 48 c7 43 28 00 00 00 00 48 c7 c6 e0 01 7d 81 48 89 df e8 39 15 af ff 48 85 ed 74 06 e8 3f 87 d3 ff fb 4d 85 ed <74> 21 5b 4c 89 ee 5d 4c 89 e7 41 5c 41 5d 41 5e 41 5f e9 54 fa ff RSP: 0018:ffff88801baf78c8 EFLAGS: 00000246 RAX: 00000000004d7231 RBX: ffff88806ce3d960 RCX: ffffffff812b799f RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000200 R08: 0000000000000001 R09: ffffffff8764e97f R10: fffffbfff0ec9d2f R11: 0000000000000001 R12: ffff88800844f780 R13: 0000000000000000 R14: ffffea00002714c0 R15: 0000000000000001 qlist_free_all+0x6d/0x1a0 kasan_quarantine_reduce+0x196/0x230 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc+0x172/0x300 jbd2_journal_add_journal_head+0x374/0x5d0 jbd2_journal_get_create_access+0x44/0x560 __ext4_journal_get_create_access+0x54/0x1f0 ext4_getblk+0x374/0x7b0 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: 0033:0x7fd061acab19 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:00007fd05f040188 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 00007fd061bddf60 RCX: 00007fd061acab19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000040 RBP: 00007fd061b24f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffef6c6620f R14: 00007fd05f040300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at default_idle+0xf/0x20 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 40 1f rex (bad) 2: 03 e8 add %eax,%ebp 4: d3 c6 rol %cl,%esi 6: 6a 00 pushq $0x0 8: e9 24 f7 ff ff jmpq 0xfffff731 d: 4c 89 e7 mov %r12,%rdi 10: e8 66 c6 6a 00 callq 0x6ac67b 15: e9 16 f8 ff ff jmpq 0xfffff830 1a: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) 1f: e9 b1 fa ff ff jmpq 0xfffffad5 24: 48 8b 44 24 18 mov 0x18(%rsp),%rax * 29: ba 08 00 00 00 mov $0x8,%edx <-- trapping instruction 2e: 4c 89 f7 mov %r14,%rdi 31: 4c 89 4c 24 30 mov %r9,0x30(%rsp) 36: 4c 89 44 24 28 mov %r8,0x28(%rsp) 3b: 48 8d 70 f8 lea -0x8(%rax),%rsi