watchdog: BUG: soft lockup - CPU#0 stuck for 26s! [syz-executor.4:12405] Modules linked in: irq event stamp: 4544813 hardirqs last enabled at (4544812): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (4544813): [] sysvec_apic_timer_interrupt+0xf/0xc0 softirqs last enabled at (4497186): [] __irq_exit_rcu+0x11b/0x180 softirqs last disabled at (4497189): [] __irq_exit_rcu+0x11b/0x180 CPU: 0 PID: 12405 Comm: syz-executor.4 Not tainted 6.1.0-rc8-next-20221207 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__orc_find+0x8f/0xf0 Code: 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 d8 48 39 c1 73 b0 4c 8d 63 fc <49> 39 ec 73 b3 4d 29 ee 49 c1 fe 02 4b 8d 04 76 48 8d 04 46 48 83 RSP: 0018:ffff88806ce09668 EFLAGS: 00000293 RAX: ffffffff817d3be9 RBX: ffffffff85dbec80 RCX: ffffffff817d3be4 RDX: 0000000000000000 RSI: ffffffff860ee60c RDI: ffffffff85dbec48 RBP: ffffffff85dbec7c R08: ffffffff860ee60c R09: ffffffff860ee63a R10: ffffed100d9c12f3 R11: 0000000000038001 R12: ffffffff85dbec7c R13: ffffffff85dbec48 R14: ffffffff85dbec78 R15: dffffc0000000000 FS: 00007f4378025700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffdd2b9a918 CR3: 0000000044484000 CR4: 0000000000350ef0 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_kmalloc+0x82/0x90 __kmalloc_node_track_caller+0x53/0xb0 __alloc_skb+0xe9/0x310 skb_copy+0x13d/0x3d0 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb6d/0x1360 mac80211_hwsim_tx_frame+0x1ee/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/0xba0 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:memcg_slab_post_alloc_hook+0x1ac/0x440 Code: d8 8b 4d 18 49 8b 07 48 83 c1 08 f6 45 0a 02 0f 94 c2 48 c1 e8 3a 48 8b 34 c5 e0 79 d0 85 83 c2 05 e8 68 36 03 00 49 83 c5 01 <4c> 39 2c 24 0f 85 83 fe ff ff e8 15 00 b7 ff b9 02 00 00 00 45 31 RSP: 0018:ffff8880470bfa08 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff8880470bf990 RDX: 1ffff110020f87da RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff888008c95640 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffff888021ed3000 R13: 0000000000000001 R14: ffff8880470bfa58 R15: ffffea0000397280 kmem_cache_alloc+0x219/0x410 __alloc_file+0x21/0x240 alloc_empty_file+0x71/0x170 path_openat+0xd4/0x29b0 do_filp_open+0x1ba/0x410 do_sys_openat2+0x171/0x4c0 __x64_sys_openat+0x143/0x200 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f437aa62a04 Code: 84 00 00 00 00 00 44 89 54 24 0c e8 96 f9 ff ff 44 8b 54 24 0c 44 89 e2 48 89 ee 41 89 c0 bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 34 44 89 c7 89 44 24 0c e8 c8 f9 ff ff 8b 44 RSP: 002b:00007f4378024ed0 EFLAGS: 00000293 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f437aaf9970 RCX: 00007f437aa62a04 RDX: 0000000000000002 RSI: 00007f4378025000 RDI: 00000000ffffff9c RBP: 00007f4378025000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000002 R13: 0000000000000007 R14: 0000000020000070 R15: 0000000000000002 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 12406 Comm: syz-executor.2 Not tainted 6.1.0-rc8-next-20221207 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:kasan_check_range+0x174/0x1d0 Code: d0 0f 8d e0 fe ff ff 41 bb 01 00 00 00 5b 5d 44 89 d8 41 5c e9 f1 ce c4 02 48 85 d2 74 e9 48 01 ea eb 09 48 83 c0 01 48 39 d0 <74> db 80 38 00 74 f2 e9 64 ff ff ff 41 bb 01 00 00 00 44 89 d8 e9 RSP: 0018:ffff88806cf091c8 EFLAGS: 00000046 RAX: fffffbfff0ec5d22 RBX: fffffbfff0ec5d22 RCX: ffffffff812bd6ca RDX: fffffbfff0ec5d22 RSI: 0000000000000008 RDI: ffffffff8762e908 RBP: fffffbfff0ec5d21 R08: 0000000000000000 R09: ffffffff8762e90f R10: fffffbfff0ec5d21 R11: 0000000000000001 R12: ffff888045b11ac0 R13: ffff888045b124e8 R14: 0000000000000005 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000056304aa820a0 CR3: 0000000017dd0000 CR4: 0000000000350ee0 Call Trace: __lock_acquire+0x144a/0x5e70 lock_acquire+0x1a6/0x530 perf_event_output_forward+0xa9/0x280 __perf_event_overflow+0x3ed/0x760 perf_swevent_hrtimer+0x361/0x3d0 __hrtimer_run_queues+0x17f/0xba0 hrtimer_interrupt+0x319/0x770 __sysvec_apic_timer_interrupt+0x148/0x500 sysvec_apic_timer_interrupt+0x3f/0xc0 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:__kasan_check_read+0x8/0x20 Code: 02 eb dd 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 0c 24 <89> f6 31 d2 e9 8f f4 ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f RSP: 0018:ffff88806cf09a20 EFLAGS: 00000202 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff84420f8b RDX: fffffbfff0b483a1 RSI: 0000000000000004 RDI: ffffffff85a41d00 RBP: ffffffff85a41d00 R08: 0000000000000000 R09: ffffffff85a41d03 R10: fffffbfff0b483a0 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0b483a0 R14: 0000000000000001 R15: 1ffff1100d9e1346 queued_spin_lock_slowpath+0xab/0xc80 do_raw_spin_lock+0x1e0/0x270 mac80211_hwsim_tx_frame_no_nl.isra.0+0x6f1/0x1360 mac80211_hwsim_tx_frame+0x1ee/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/0xba0 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:block_dirty_folio+0x4a/0x1d0 Code: 89 3c 24 e8 e8 4c b6 ff 4c 89 ff e8 70 fd ae 02 49 8d 7c 24 28 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 <0f> 85 5d 01 00 00 4d 8b 6c 24 28 4d 85 ed 0f 84 89 00 00 00 48 bd RSP: 0018:ffff88801fe4f6a0 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: ffff88801e56ca68 RCX: ffffffff812ca1c5 RDX: 1ffffd40001aac65 RSI: 0000000000000004 RDI: ffffea0000d56328 RBP: ffffea0000d56300 R08: 0000000000000001 R09: ffff88801fe4f633 R10: ffffed1003fc9ec6 R11: 0000000000000001 R12: ffffea0000d56300 R13: ffffea0000d56300 R14: 0000000000000040 R15: ffff88801e56cc30 folio_mark_dirty+0xc3/0x140 unmap_page_range+0x1f51/0x2c10 unmap_single_vma+0x190/0x2a0 unmap_vmas+0x226/0x380 exit_mmap+0x158/0x680 mmput+0xd5/0x390 do_exit+0x99b/0x2720 do_group_exit+0xd4/0x2a0 get_signal+0x21b7/0x22f0 arch_do_signal_or_restart+0x79/0x5a0 exit_to_user_mode_prepare+0x131/0x1a0 syscall_exit_to_user_mode+0x1d/0x50 do_syscall_64+0x4c/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7f4d33182b19 Code: Unable to access opcode bytes at 0x7f4d33182aef. RSP: 002b:00007f4d306f8188 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffed RBX: 00007f4d33295f60 RCX: 00007f4d33182b19 RDX: 0000000020000080 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 00007f4d331dcf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe0292549f R14: 00007f4d306f8300 R15: 0000000000022000 ---------------- Code disassembly (best guess): 0: d8 48 c1 fmuls -0x3f(%rax) 3: e8 03 42 0f b6 callq 0xb60f420b 8: 14 38 adc $0x38,%al a: 48 89 d8 mov %rbx,%rax d: 83 e0 07 and $0x7,%eax 10: 83 c0 03 add $0x3,%eax 13: 38 d0 cmp %dl,%al 15: 7c 04 jl 0x1b 17: 84 d2 test %dl,%dl 19: 75 50 jne 0x6b 1b: 48 63 03 movslq (%rbx),%rax 1e: 48 01 d8 add %rbx,%rax 21: 48 39 c1 cmp %rax,%rcx 24: 73 b0 jae 0xffffffd6 26: 4c 8d 63 fc lea -0x4(%rbx),%r12 * 2a: 49 39 ec cmp %rbp,%r12 <-- trapping instruction 2d: 73 b3 jae 0xffffffe2 2f: 4d 29 ee sub %r13,%r14 32: 49 c1 fe 02 sar $0x2,%r14 36: 4b 8d 04 76 lea (%r14,%r14,2),%rax 3a: 48 8d 04 46 lea (%rsi,%rax,2),%rax 3e: 48 rex.W 3f: 83 .byte 0x83