netlink: 68 bytes leftover after parsing attributes in process `syz-executor.6'. EXT4-fs (loop3): #blocks per group too big: 16384 watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor.2:7154] Modules linked in: irq event stamp: 16026371 hardirqs last enabled at (16026370): [] asm_sysvec_apic_timer_interrupt+0x12/0x20 arch/x86/include/asm/idtentry.h:635 hardirqs last disabled at (16026371): [] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1094 softirqs last enabled at (16013950): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (16013953): [] asm_call_irq_on_stack+0x12/0x20 CPU: 0 PID: 7154 Comm: syz-executor.2 Not tainted 5.10.223 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:on_stack arch/x86/include/asm/stacktrace.h:48 [inline] RIP: 0010:stack_access_ok arch/x86/kernel/unwind_orc.c:347 [inline] RIP: 0010:deref_stack_reg+0x1c/0x160 arch/x86/kernel/unwind_orc.c:357 Code: 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 b8 00 00 00 00 00 fc ff df 41 55 41 54 49 89 fc 55 48 89 f5 53 48 89 d3 48 89 fa <48> c1 ea 03 48 83 ec 08 0f b6 04 02 84 c0 74 08 3c 03 0f 8e df 00 RSP: 0018:ffff88806ce09678 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: ffff88806ce097c0 RCX: ffffffff859863bc RDX: ffff88806ce09778 RSI: ffff88804b59fc78 RDI: ffff88806ce09778 RBP: ffff88804b59fc78 R08: ffffffff859863c1 R09: ffff88804b59fc80 R10: 0000000000032042 R11: 1ffff1100d9c12dc R12: ffff88806ce09778 R13: ffff88806ce09778 R14: 1ffff1100d9c12dc R15: ffffffff859863c0 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055a09a430678 CR3: 000000000f7a0000 CR4: 0000000000350ef0 Call Trace: unwind_next_frame+0xbf8/0x1a90 arch/x86/kernel/unwind_orc.c:536 arch_stack_walk+0x83/0xf0 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:121 kasan_save_stack+0x1b/0x40 mm/kasan/common.c:48 kasan_set_track mm/kasan/common.c:56 [inline] __kasan_kmalloc.constprop.0+0xc9/0xd0 mm/kasan/common.c:461 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 mem_pool_alloc mm/kmemleak.c:423 [inline] create_object.isra.0+0x3a/0xa20 mm/kmemleak.c:578 kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline] slab_post_alloc_hook mm/slab.h:534 [inline] slab_alloc_node mm/slub.c:2896 [inline] __kmalloc_node_track_caller+0x1a6/0x3b0 mm/slub.c:4496 __kmalloc_reserve net/core/skbuff.c:143 [inline] __alloc_skb+0xb1/0x5b0 net/core/skbuff.c:211 __napi_alloc_skb+0x6b/0x2d0 net/core/skbuff.c:521 napi_alloc_skb include/linux/skbuff.h:2901 [inline] e1000_alloc_rx_skb drivers/net/ethernet/intel/e1000/e1000_main.c:4111 [inline] e1000_copybreak drivers/net/ethernet/intel/e1000/e1000_main.c:4330 [inline] e1000_clean_rx_irq+0x7cc/0x1170 drivers/net/ethernet/intel/e1000/e1000_main.c:4382 e1000_clean+0x963/0x1c50 drivers/net/ethernet/intel/e1000/e1000_main.c:3803 napi_poll net/core/dev.c:6847 [inline] net_rx_action+0x3ff/0xf40 net/core/dev.c:6917 __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:arch_atomic_read arch/x86/include/asm/atomic.h:29 [inline] RIP: 0010:rcu_dynticks_curr_cpu_in_eqs kernel/rcu/tree.c:322 [inline] RIP: 0010:rcu_is_watching+0x44/0x70 kernel/rcu/tree.c:1112 Code: 28 01 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 04 84 d2 75 18 <8b> 83 28 01 00 00 d1 e8 5b 83 e0 01 65 ff 0d a9 7a d4 7e e9 24 4b RSP: 0018:ffff88804b59fa40 EFLAGS: 00000246 RAX: 0000000000000003 RBX: ffff88806ce3c000 RCX: ffffffff81273138 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff88806ce3c128 RBP: 1ffff110096b3f4c R08: 0000000000000000 R09: ffffffff8567580f R10: fffffbfff0aceb01 R11: 0000000000000001 R12: ffff888008833920 R13: ffff88801acb2268 R14: ffff888008833908 R15: ffff88803bd6cd00 trace_lock_release include/trace/events/lock.h:58 [inline] lock_release+0x4d1/0x680 kernel/locking/lockdep.c:5577 __raw_spin_unlock include/linux/spinlock_api_smp.h:150 [inline] _raw_spin_unlock+0x12/0x30 kernel/locking/spinlock.c:183 spin_unlock include/linux/spinlock.h:394 [inline] exit_fs+0xba/0x170 fs/fs_struct.c:105 do_exit+0xb3d/0x2600 kernel/exit.c:856 do_group_exit+0x125/0x310 kernel/exit.c:982 get_signal+0x4bc/0x22e0 kernel/signal.c:2751 arch_do_signal_or_restart+0x2b7/0x1990 arch/x86/kernel/signal.c:805 handle_signal_work kernel/entry/common.c:145 [inline] exit_to_user_mode_loop kernel/entry/common.c:169 [inline] exit_to_user_mode_prepare+0x10f/0x190 kernel/entry/common.c:199 syscall_exit_to_user_mode+0x38/0x1d0 kernel/entry/common.c:274 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f35e6b11b19 Code: Unable to access opcode bytes at RIP 0x7f35e6b11aef. RSP: 002b:00007f35e4087188 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: 0000000000000007 RBX: 00007f35e6c24f60 RCX: 00007f35e6b11b19 RDX: 0000000000000001 RSI: 0000000000000003 RDI: 0000000000000002 RBP: 00007f35e6b6bf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd5da7445f R14: 00007f35e4087300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 7144 Comm: syz-executor.4 Not tainted 5.10.223 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:strcpy+0x5b/0xb0 lib/string.c:93 Code: c1 e8 03 83 e2 07 42 0f b6 04 28 38 d0 7f 04 84 c0 75 3c 48 89 e8 48 89 ea 44 0f b6 66 ff 48 c1 e8 03 83 e2 07 42 0f b6 04 28 <38> d0 7f 04 84 c0 75 2c 44 88 63 ff 45 84 e4 75 b0 48 83 c4 08 4c RSP: 0018:ffff88806cf096d8 EFLAGS: 00000002 RAX: 0000000000000000 RBX: ffffe8ffffd44023 RCX: 0000000000000000 RDX: 0000000000000002 RSI: ffffffff844869eb RDI: ffffffff844869ea RBP: ffffe8ffffd44022 R08: 0000000000000001 R09: ffffe8ffffd4402c R10: ffffe8ffffd44000 R11: 1ffff1100d9e6fd5 R12: 0000000000000071 R13: dffffc0000000000 R14: ffffe8ffffd44018 R15: ffff88806cf097c0 FS: 0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa92eb05010 CR3: 000000001594e000 CR4: 0000000000350ee0 Call Trace: strcpy include/linux/string.h:474 [inline] perf_trace_lock+0x270/0x490 include/trace/events/lock.h:39 trace_lock_release include/trace/events/lock.h:58 [inline] lock_release+0x470/0x680 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:1692 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:slab_alloc_node mm/slub.c:2861 [inline] RIP: 0010:kmem_cache_alloc_node+0x2e9/0x330 mm/slub.c:2932 Code: 85 ea fe ff ff 0f 0b e9 e3 fe ff ff 9c 5b fa f6 c7 02 75 22 4c 89 e1 44 89 f2 44 89 ee 48 89 ef e8 6c ef ff ff 49 89 c0 53 9d <4c> 89 44 24 08 e9 29 fe ff ff 0f 0b 4c 89 04 24 e8 82 e0 da ff 4c RSP: 0018:ffff88806cf09ac0 EFLAGS: 00000246 RAX: 0000000000c666e0 RBX: 0000000000000246 RCX: 1ffffffff0d1085a RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff816c311c RBP: ffff888008805a00 R08: ffff88804a54d140 R09: ffffffff8686872f R10: fffffbfff0d0d0e5 R11: 0000000000000001 R12: ffffffff8312df8d R13: 0000000000000a20 R14: 00000000ffffffff R15: 0000000000000000 __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:1584 [inline] __hrtimer_run_queues+0x632/0xb40 kernel/time/hrtimer.c:1648 hrtimer_run_softirq+0x148/0x310 kernel/time/hrtimer.c:1665 __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:lock_release+0x50/0x680 kernel/locking/lockdep.c:5574 Code: 24 08 48 c7 44 24 10 b3 8a b5 41 48 c1 ed 03 48 c7 44 24 18 60 3f bd 84 48 01 e8 48 c7 44 24 20 a0 30 27 81 c7 00 f1 f1 f1 f1 40 04 f1 f1 04 f2 c7 40 08 04 f3 f3 f3 65 48 8b 04 25 28 00 00 RSP: 0018:ffff88804e4d7698 EFLAGS: 00000282 RAX: ffffed1009c9aed5 RBX: 0000000000000000 RCX: ffffffff81641ea7 RDX: 0000000000000000 RSI: ffffffff816dc796 RDI: ffffffff84ff8c20 RBP: 1ffff11009c9aed5 R08: 0000000000000000 R09: ffffea0000fa2547 R10: 0000000000000000 R11: 0000000000000001 R12: ffffffff84ff8c20 R13: ffff88804dac92d0 R14: dffffc0000000000 R15: 00007fa615a5b000 zap_pte_range mm/memory.c:1287 [inline] zap_pmd_range mm/memory.c:1404 [inline] zap_pud_range mm/memory.c:1433 [inline] zap_p4d_range mm/memory.c:1454 [inline] unmap_page_range+0x110f/0x1fe0 mm/memory.c:1475 unmap_single_vma+0x198/0x300 mm/memory.c:1520 unmap_vmas+0x16d/0x300 mm/memory.c:1552 exit_mmap+0x27f/0x4f0 mm/mmap.c:3235 __mmput kernel/fork.c:1101 [inline] mmput+0xca/0x340 kernel/fork.c:1122 exit_mm kernel/exit.c:536 [inline] do_exit+0xa96/0x2600 kernel/exit.c:847 do_group_exit+0x125/0x310 kernel/exit.c:982 get_signal+0x4bc/0x22e0 kernel/signal.c:2751 arch_do_signal_or_restart+0x2b7/0x1990 arch/x86/kernel/signal.c:805 handle_signal_work kernel/entry/common.c:145 [inline] exit_to_user_mode_loop kernel/entry/common.c:169 [inline] exit_to_user_mode_prepare+0x10f/0x190 kernel/entry/common.c:199 syscall_exit_to_user_mode+0x38/0x1d0 kernel/entry/common.c:274 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7fa61670db19 Code: Unable to access opcode bytes at RIP 0x7fa61670daef. RSP: 002b:00007fa613c83188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: fffffffffffffff7 RBX: 00007fa616820f60 RCX: 00007fa61670db19 RDX: 00000000200001c0 RSI: 00000000c0189372 RDI: ffffffffffffffff RBP: 00007fa616767f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffed32860af R14: 00007fa613c83300 R15: 0000000000022000 ---------------- Code disassembly (best guess): 0: 66 66 2e 0f 1f 84 00 data16 nopw %cs:0x0(%rax,%rax,1) 7: 00 00 00 00 b: 0f 1f 00 nopl (%rax) e: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 15: fc ff df 18: 41 55 push %r13 1a: 41 54 push %r12 1c: 49 89 fc mov %rdi,%r12 1f: 55 push %rbp 20: 48 89 f5 mov %rsi,%rbp 23: 53 push %rbx 24: 48 89 d3 mov %rdx,%rbx 27: 48 89 fa mov %rdi,%rdx * 2a: 48 c1 ea 03 shr $0x3,%rdx <-- trapping instruction 2e: 48 83 ec 08 sub $0x8,%rsp 32: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax 36: 84 c0 test %al,%al 38: 74 08 je 0x42 3a: 3c 03 cmp $0x3,%al 3c: 0f .byte 0xf 3d: 8e df mov %edi,%ds