cgroup: Unknown subsys name 'appraise_type' watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.1:4972] Modules linked in: irq event stamp: 3998695 hardirqs last enabled at (3998694): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 hardirqs last disabled at (3998695): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1094 softirqs last enabled at (3930142): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (3930145): [] asm_call_irq_on_stack+0x12/0x20 CPU: 1 PID: 4972 Comm: syz-executor.1 Not tainted 5.10.226 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:kasan_set_track mm/kasan/common.c:56 [inline] RIP: 0010:__kasan_kmalloc.constprop.0+0xae/0xd0 mm/kasan/common.c:461 Code: 08 75 20 48 83 c4 08 4c 89 e0 5b 5d 41 5c 41 5d 41 5e 41 5f e9 c3 cf b3 02 e8 ce 28 00 00 e9 7a ff ff ff 49 63 9e bc 00 00 00 <89> ef 65 48 8b 04 25 80 6f 02 00 8b 80 98 04 00 00 4c 01 e3 89 03 RSP: 0018:ffff88806cf09a80 EFLAGS: 00000202 RAX: ffffed100948315d RBX: 00000000000000e8 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 00000000000000fc RDI: ffffed100948315d RBP: 0000000000000a20 R08: ffffed1009483140 R09: ffffed100948315d R10: 0000000000000000 R11: 0000000000000001 R12: ffff88804a418a00 R13: 0000000000000000 R14: ffff888008805a00 R15: 00000000000000e8 FS: 00007f2b7a85e700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2cf23000 CR3: 0000000048b12000 CR4: 0000000000350ee0 Call Trace: slab_post_alloc_hook mm/slab.h:532 [inline] slab_alloc_node mm/slub.c:2896 [inline] kmem_cache_alloc_node+0x14b/0x330 mm/slub.c:2932 __alloc_skb+0x6d/0x5b0 net/core/skbuff.c:199 skb_copy+0x183/0x350 net/core/skbuff.c:1529 mac80211_hwsim_tx_frame_no_nl.isra.0+0xb1d/0x13d0 drivers/net/wireless/mac80211_hwsim.c:1499 mac80211_hwsim_tx_frame+0x152/0x1e0 drivers/net/wireless/mac80211_hwsim.c:1716 mac80211_hwsim_beacon_tx+0x494/0x940 drivers/net/wireless/mac80211_hwsim.c:1770 __iterate_interfaces+0x1f0/0x550 net/mac80211/util.c:792 ieee80211_iterate_active_interfaces_atomic+0x71/0x1c0 net/mac80211/util.c:828 mac80211_hwsim_beacon+0xd1/0x1d0 drivers/net/wireless/mac80211_hwsim.c:1793 __run_hrtimer kernel/time/hrtimer.c:1586 [inline] __hrtimer_run_queues+0x632/0xb40 kernel/time/hrtimer.c:1650 hrtimer_run_softirq+0x148/0x310 kernel/time/hrtimer.c:1667 __do_softirq+0x1b8/0x7c9 kernel/softirq.c:298 asm_call_irq_on_stack+0x12/0x20 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline] do_softirq_own_stack+0x80/0xa0 arch/x86/kernel/irq_64.c:77 invoke_softirq kernel/softirq.c:393 [inline] __irq_exit_rcu kernel/softirq.c:423 [inline] irq_exit_rcu+0x114/0x1b0 kernel/softirq.c:435 sysvec_apic_timer_interrupt+0x43/0xa0 arch/x86/kernel/apic/apic.c:1094 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0010:do_slab_free mm/slub.c:3114 [inline] RIP: 0010:___cache_free+0x1e2/0x360 mm/slub.c:3156 Code: ff 0d 42 12 96 7e e8 0d 9c c1 ff 48 c7 c7 20 8c ff 84 48 c7 c6 f7 5c 6c 81 e8 7a d5 ba ff 48 89 ef e8 02 82 ff ff 49 8b 04 24 <65> 48 8b 50 08 65 48 03 05 49 b8 95 7e 48 8b 3c 24 48 39 78 10 0f RSP: 0018:ffff88801e43f800 EFLAGS: 00000246 RAX: 000000000003e7f0 RBX: ffff88801778a800 RCX: ffffea00005de200 RDX: 0000000000000001 RSI: ffffea0000000000 RDI: 0000000000000000 RBP: dffffc0000000000 R08: 000000000000000b R09: ffffffff816c9401 R10: ffff88801e787280 R11: 0000000000000001 R12: ffff888008041140 R13: ffffea00005de200 R14: ffffffff80000000 R15: ffff88801b1373c0 qlink_free mm/kasan/quarantine.c:151 [inline] qlist_free_all+0x59/0xe0 mm/kasan/quarantine.c:170 quarantine_reduce+0x184/0x210 mm/kasan/quarantine.c:267 __kasan_kmalloc.constprop.0+0xa2/0xd0 mm/kasan/common.c:442 slab_post_alloc_hook mm/slab.h:532 [inline] slab_alloc_node mm/slub.c:2896 [inline] slab_alloc mm/slub.c:2904 [inline] kmem_cache_alloc+0x13b/0x310 mm/slub.c:2909 kmem_cache_zalloc include/linux/slab.h:654 [inline] seq_open+0x57/0x180 fs/seq_file.c:63 single_open+0xf9/0x1f0 fs/seq_file.c:572 snd_info_text_entry_open+0x253/0x2e0 sound/core/info.c:387 proc_reg_open+0x25d/0x5d0 fs/proc/inode.c:538 do_dentry_open+0x4b7/0x1090 fs/open.c:817 do_open fs/namei.c:3307 [inline] path_openat+0x19ba/0x2770 fs/namei.c:3425 do_filp_open+0x190/0x3e0 fs/namei.c:3452 do_sys_openat2+0x171/0x4d0 fs/open.c:1227 do_sys_open fs/open.c:1243 [inline] __do_sys_openat fs/open.c:1259 [inline] __se_sys_openat fs/open.c:1254 [inline] __x64_sys_openat+0x13f/0x1f0 fs/open.c:1254 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f2b7d2e8b19 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:00007f2b7a85e188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f2b7d3fbf60 RCX: 00007f2b7d2e8b19 RDX: 0000000000000000 RSI: 0000000020000340 RDI: ffffffffffffff9c RBP: 00007f2b7d342f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc9f13591f R14: 00007f2b7a85e300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 4980 Comm: syz-executor.4 Not tainted 5.10.226 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:check_memory_region+0xc/0x1f0 mm/kasan/generic.c:191 Code: f2 be f5 00 00 00 e9 53 7d 96 00 0f 1f 00 48 89 f2 be f8 00 00 00 e9 43 7d 96 00 0f 1f 00 48 85 f6 0f 84 ca 01 00 00 49 89 f9 <41> 54 44 0f b6 c2 55 53 49 01 f1 0f 82 d8 00 00 00 e9 c0 00 00 00 RSP: 0018:ffff88806ce09760 EFLAGS: 00000002 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff812736af RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff85675ec8 RBP: 1ffff1100d9c12ef R08: 0000000000000000 R09: ffffffff85675ec8 R10: 0000000000000046 R11: 0000000000000001 R12: ffffffff8500fb08 R13: dffffc0000000000 R14: ffff88806ce2eba8 R15: 0000000000000000 FS: 00007fe8d2d8f700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000557b383e5678 CR3: 000000004933c000 CR4: 0000000000350ef0 Call Trace: instrument_atomic_read include/linux/instrumented.h:71 [inline] test_bit include/asm-generic/bitops/instrumented-non-atomic.h:134 [inline] cpumask_test_cpu include/linux/cpumask.h:367 [inline] trace_lock_release include/trace/events/lock.h:58 [inline] lock_release+0x41f/0x680 kernel/locking/lockdep.c:5577 seqcount_lockdep_reader_access include/linux/seqlock.h:104 [inline] ktime_get_update_offsets_now+0xac/0x360 kernel/time/timekeeping.c:2298 hrtimer_update_base kernel/time/hrtimer.c:631 [inline] hrtimer_interrupt+0x10e/0x9b0 kernel/time/hrtimer.c:1694 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1083 [inline] __sysvec_apic_timer_interrupt+0xfb/0x310 arch/x86/kernel/apic/apic.c:1100 run_sysvec_on_irqstack_cond arch/x86/include/asm/irq_stack.h:91 [inline] sysvec_apic_timer_interrupt+0x3e/0xa0 arch/x86/kernel/apic/apic.c:1094 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0010:cpu_relax arch/x86/include/asm/vdso/processor.h:19 [inline] RIP: 0010:virt_spin_lock arch/x86/include/asm/qspinlock.h:100 [inline] RIP: 0010:queued_spin_lock_slowpath+0x122/0x8c0 kernel/locking/qspinlock.c:326 Code: 00 00 00 65 48 2b 04 25 28 00 00 00 0f 85 09 07 00 00 48 81 c4 88 00 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f e9 00 a4 f8 02 f3 90 73 ff ff ff 44 8b 74 24 48 41 81 fe 00 01 00 00 0f 84 e1 00 00 RSP: 0018:ffff88806ce09a38 EFLAGS: 00000202 RAX: 0000000000000000 RBX: ffffffff87a04080 RCX: ffffffff81279b47 RDX: fffffbfff0f40811 RSI: 0000000000000004 RDI: ffffffff87a04080 RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff87a04083 R10: fffffbfff0f40810 R11: 0000000000000001 R12: 0000000000000003 R13: fffffbfff0f40810 R14: 0000000000000001 R15: 1ffff1100d9c1348 queued_spin_lock include/asm-generic/qspinlock.h:85 [inline] do_raw_spin_lock+0x1dc/0x260 kernel/locking/spinlock_debug.c:113 spin_lock include/linux/spinlock.h:354 [inline] mac80211_hwsim_tx_frame_no_nl.isra.0+0x695/0x13d0 drivers/net/wireless/mac80211_hwsim.c:1450 mac80211_hwsim_tx_frame+0x152/0x1e0 drivers/net/wireless/mac80211_hwsim.c:1716 mac80211_hwsim_beacon_tx+0x494/0x940 drivers/net/wireless/mac80211_hwsim.c:1770 __iterate_interfaces+0x1f0/0x550 net/mac80211/util.c:792 ieee80211_iterate_active_interfaces_atomic+0x71/0x1c0 net/mac80211/util.c:828 mac80211_hwsim_beacon+0xd1/0x1d0 drivers/net/wireless/mac80211_hwsim.c:1793 __run_hrtimer kernel/time/hrtimer.c:1586 [inline] __hrtimer_run_queues+0x632/0xb40 kernel/time/hrtimer.c:1650 hrtimer_run_softirq+0x148/0x310 kernel/time/hrtimer.c:1667 __do_softirq+0x1b8/0x7c9 kernel/softirq.c:298 asm_call_irq_on_stack+0x12/0x20 __run_on_irqstack arch/x86/include/asm/irq_stack.h:26 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:77 [inline] do_softirq_own_stack+0x80/0xa0 arch/x86/kernel/irq_64.c:77 invoke_softirq kernel/softirq.c:393 [inline] __irq_exit_rcu kernel/softirq.c:423 [inline] irq_exit_rcu+0x114/0x1b0 kernel/softirq.c:435 sysvec_apic_timer_interrupt+0x43/0xa0 arch/x86/kernel/apic/apic.c:1094 asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 RIP: 0010:__preempt_count_sub arch/x86/include/asm/preempt.h:84 [inline] RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0x25/0x40 kernel/locking/spinlock.c:191 Code: 38 00 0f 1f 00 55 48 89 fd 48 83 c7 18 53 48 89 f3 48 8b 74 24 10 e8 9a a1 3f fd 48 89 ef e8 62 5b 40 fd f6 c7 02 75 10 53 9d <65> ff 0d 34 de 1a 7c 5b 5d e9 ad ae 38 00 e8 a8 7c 5f fd eb e9 66 RSP: 0018:ffff88804a2cf410 EFLAGS: 00000246 RAX: 00000000000fbd95 RBX: 0000000000000246 RCX: 1ffffffff0d1700a RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff83e79118 RBP: ffffffff850a6880 R08: 0000000000000001 R09: ffffffff868687b7 R10: fffffbfff0d0d0f6 R11: 0000000000000001 R12: ffff88801d2530e0 R13: ffff88801d2521f8 R14: ffff8880083fec80 R15: ffff88801d76bbc8 find_and_remove_object+0xe4/0x120 mm/kmemleak.c:553 delete_object_full mm/kmemleak.c:684 [inline] kmemleak_free+0x1f/0x40 mm/kmemleak.c:966 kmemleak_free_recursive include/linux/kmemleak.h:49 [inline] slab_free_hook mm/slub.c:1517 [inline] slab_free_freelist_hook+0x13e/0x180 mm/slub.c:1576 slab_free mm/slub.c:3149 [inline] kmem_cache_free+0xa7/0x2d0 mm/slub.c:3165 free_buffer_head+0x42/0xa0 fs/buffer.c:3352 try_to_free_buffers+0x235/0x3e0 fs/buffer.c:3266 try_to_release_page+0x1e9/0x270 mm/filemap.c:3533 block_invalidatepage+0x445/0x4c0 fs/buffer.c:1544 do_invalidatepage mm/truncate.c:163 [inline] truncate_cleanup_page+0x205/0x2a0 mm/truncate.c:182 truncate_inode_pages_range+0x4bc/0x1290 mm/truncate.c:362 truncate_inode_pages mm/truncate.c:473 [inline] truncate_pagecache+0x63/0x90 mm/truncate.c:834 fat_setattr+0xbb2/0xf50 fs/fat/file.c:536 notify_change+0xc28/0x1160 fs/attr.c:410 do_truncate+0x134/0x1f0 fs/open.c:64 handle_truncate fs/namei.c:2970 [inline] do_open fs/namei.c:3311 [inline] path_openat+0x1dcd/0x2770 fs/namei.c:3425 do_filp_open+0x190/0x3e0 fs/namei.c:3452 do_sys_openat2+0x171/0x4d0 fs/open.c:1227 do_sys_open fs/open.c:1243 [inline] __do_sys_creat fs/open.c:1317 [inline] __se_sys_creat fs/open.c:1311 [inline] __x64_sys_creat+0xc9/0x120 fs/open.c:1311 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7fe8d583ab19 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:00007fe8d2d8f188 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 RAX: ffffffffffffffda RBX: 00007fe8d594e020 RCX: 00007fe8d583ab19 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000040 RBP: 00007fe8d5894f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffec7fe911f R14: 00007fe8d2d8f300 R15: 0000000000022000 ---------------- Code disassembly (best guess): 0: 08 75 20 or %dh,0x20(%rbp) 3: 48 83 c4 08 add $0x8,%rsp 7: 4c 89 e0 mov %r12,%rax a: 5b pop %rbx b: 5d pop %rbp c: 41 5c pop %r12 e: 41 5d pop %r13 10: 41 5e pop %r14 12: 41 5f pop %r15 14: e9 c3 cf b3 02 jmpq 0x2b3cfdc 19: e8 ce 28 00 00 callq 0x28ec 1e: e9 7a ff ff ff jmpq 0xffffff9d 23: 49 63 9e bc 00 00 00 movslq 0xbc(%r14),%rbx * 2a: 89 ef mov %ebp,%edi <-- trapping instruction 2c: 65 48 8b 04 25 80 6f mov %gs:0x26f80,%rax 33: 02 00 35: 8b 80 98 04 00 00 mov 0x498(%rax),%eax 3b: 4c 01 e3 add %r12,%rbx 3e: 89 03 mov %eax,(%rbx)