watchdog: BUG: soft lockup - CPU#1 stuck for 21s! [syz-executor.2:5214] Modules linked in: irq event stamp: 4022357 hardirqs last enabled at (4022356): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (4022357): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (4007904): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (4007907): [] __irq_exit_rcu+0x11b/0x180 CPU: 1 PID: 5214 Comm: syz-executor.2 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:__orc_find+0x6f/0xf0 Code: 72 4d 4c 89 e0 48 29 e8 48 89 c2 48 c1 e8 3f 48 c1 fa 02 48 01 d0 48 d1 f8 48 8d 5c 85 00 48 89 d8 48 c1 e8 03 42 0f b6 14 38 <48> 89 d8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 50 48 63 03 48 01 RSP: 0018:ffff88806cf09630 EFLAGS: 00000217 RAX: 1ffffffff0c02db4 RBX: ffffffff86016da4 RCX: ffffffff846000ad RDX: 0000000000000000 RSI: ffffffff86472532 RDI: ffffffff86016da4 RBP: ffffffff86016da4 R08: ffffffff86472532 R09: ffffffff8646899c R10: ffff88806cf09ff8 R11: 0000000000038001 R12: ffffffff86016da8 R13: ffffffff86016da4 R14: ffffffff86016da4 R15: dffffc0000000000 FS: 00007f81dd5bb700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055bc94a1f180 CR3: 0000000046c3c000 CR4: 0000000000350ee0 Call Trace: unwind_next_frame+0x2b1/0x2130 arch_stack_walk+0x87/0xf0 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:unwind_get_return_address+0x4/0xa0 Code: 6a 00 eb ac e8 2d d2 6a 00 e9 75 ff ff ff 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 <48> b8 00 00 00 00 00 fc ff df 48 89 fa 55 48 c1 ea 03 53 48 89 fb RSP: 0018:ffff888016e27140 EFLAGS: 00000202 RAX: 0000000000000001 RBX: ffffffff81385a60 RCX: 0000000000000000 RDX: 0000000000000001 RSI: ffff888016e27f58 RDI: ffff888016e27148 RBP: ffff888016e271e0 R08: ffffffff86472538 R09: ffffffff8647253c R10: ffffed1002dc4e36 R11: 0000000000038001 R12: ffff888016e27210 R13: 0000000000000000 R14: ffff888045230000 R15: 00000000000000f0 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+0x204/0x300 __es_insert_extent+0x3a9/0x12f0 ext4_es_insert_extent+0x2db/0xc20 ext4_ext_map_blocks+0x1a58/0x5dd0 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: 0033:0x7f81e0044c27 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:00007f81dd5bafa8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f81e0044c27 RDX: 0000000000000000 RSI: 00000000000001ff RDI: 0000000020000100 RBP: 00007f81dd5bb040 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000020000100 R14: 00007f81dd5bb000 R15: 0000000000000000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 5224 Comm: syz-executor.4 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:idle_cpu+0xe/0x120 Code: ed 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 48 b8 00 00 00 00 00 fc ff df <55> 48 63 ef 48 8d 3c ed c0 e8 2a 85 53 48 c7 c3 00 93 03 00 48 89 RSP: 0018:ffff88806ce09588 EFLAGS: 00000002 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000010102 RSI: 0000000000000102 RDI: 0000000000000000 RBP: ffff88806ce095c8 R08: 0000000000000000 R09: ffffffff85d0c5d7 R10: fffffbfff0ba18ba R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555556f42c58 CR3: 000000001593e000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: __irq_exit_rcu+0x2e/0x180 irq_exit_rcu+0x9/0x30 sysvec_apic_timer_interrupt+0x44/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:unwind_next_frame+0x1c2/0x2130 Code: 8d 43 ff 39 c6 0f 83 8c 15 00 00 48 b8 00 00 00 00 00 fc ff df 89 f2 48 8d 3c 95 10 b7 49 86 48 89 f9 48 c1 e9 03 0f b6 0c 01 <48> 89 f8 83 e0 07 83 c0 03 38 c8 7c 27 84 c9 74 23 48 89 54 24 28 RSP: 0018:ffff88806ce09678 EFLAGS: 00000213 RAX: dffffc0000000000 RBX: 0000000000000002 RCX: 0000000000000000 RDX: 0000000000034233 RSI: 0000000000034233 RDI: ffffffff8656bfdc RBP: ffff88806ce09750 R08: ffffffff8605f624 R09: ffffffff8605f628 R10: ffffed100d9c12ec R11: 0000000000038001 R12: ffff88806ce09739 R13: ffff88806ce09758 R14: ffff88806ce096f8 R15: ffffffff84423381 arch_stack_walk+0x87/0xf0 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:__sanitizer_cov_trace_pc+0x11/0x70 Code: 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 0d 17 ba 7e 89 c1 48 8b 34 24 <81> e1 00 01 00 00 65 48 8b 14 25 80 89 03 00 a9 00 01 ff 00 74 0e RSP: 0018:ffff888043cef6f8 EFLAGS: 00000246 RAX: 0000000080000001 RBX: 0000000000000002 RCX: 0000000080000001 RDX: ffff888045e39ac0 RSI: ffffffff816d9b51 RDI: 0000000000000005 RBP: dffffc0000000000 R08: 0000000000000005 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000001 R12: ffff88801f42cea8 R13: ffffea0001054dc0 R14: 0000000000000000 R15: ffff888043cefad8 unmap_page_range+0x2151/0x2c90 unmap_single_vma+0x190/0x2a0 unmap_vmas+0x226/0x380 exit_mmap+0x158/0x6a0 mmput+0xd5/0x390 do_exit+0x99b/0x2780 do_group_exit+0xd4/0x2a0 get_signal+0x2255/0x2390 arch_do_signal_or_restart+0x79/0x5a0 exit_to_user_mode_prepare+0xf5/0x190 syscall_exit_to_user_mode+0x1d/0x50 do_syscall_64+0x4c/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f09b294eb19 Code: Unable to access opcode bytes at 0x7f09b294eaef. RSP: 002b:00007f09afe82218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007f09b2a620e8 RCX: 00007f09b294eb19 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f09b2a620e8 RBP: 00007f09b2a620e0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f09b2a620ec R13: 00007ffd367be71f R14: 00007f09afe82300 R15: 0000000000022000 ---------------- Code disassembly (best guess): 0: 72 4d jb 0x4f 2: 4c 89 e0 mov %r12,%rax 5: 48 29 e8 sub %rbp,%rax 8: 48 89 c2 mov %rax,%rdx b: 48 c1 e8 3f shr $0x3f,%rax f: 48 c1 fa 02 sar $0x2,%rdx 13: 48 01 d0 add %rdx,%rax 16: 48 d1 f8 sar %rax 19: 48 8d 5c 85 00 lea 0x0(%rbp,%rax,4),%rbx 1e: 48 89 d8 mov %rbx,%rax 21: 48 c1 e8 03 shr $0x3,%rax 25: 42 0f b6 14 38 movzbl (%rax,%r15,1),%edx * 2a: 48 89 d8 mov %rbx,%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 04 jl 0x3b 37: 84 d2 test %dl,%dl 39: 75 50 jne 0x8b 3b: 48 63 03 movslq (%rbx),%rax 3e: 48 rex.W 3f: 01 .byte 0x1