netlink: 12 bytes leftover after parsing attributes in process `syz-executor.3'. device vlan1052 entered promiscuous mode bridge2419: port 1(vlan1052) entered blocking state bridge2419: port 1(vlan1052) entered disabled state watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.5:27247] Modules linked in: irq event stamp: 4095023 hardirqs last enabled at (4095022): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] hardirqs last enabled at (4095022): [] _raw_spin_unlock_irqrestore+0x79/0xe0 kernel/locking/spinlock.c:184 hardirqs last disabled at (4095023): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (164016): [] __do_softirq+0x678/0x980 kernel/softirq.c:318 softirqs last disabled at (165193): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (165193): [] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 0 PID: 27247 Comm: syz-executor.5 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline] RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0xa3/0xe0 kernel/locking/spinlock.c:184 Code: 48 c7 c0 88 82 f1 89 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 2f 48 83 3d 7c 31 d8 01 00 74 15 48 89 df 57 9d <0f> 1f 44 00 00 eb b2 e8 fb eb e6 f8 eb c0 0f 0b 0f 0b 48 c7 c7 88 RSP: 0018:ffff8880ba007c28 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff13e3051 RBX: 0000000000000286 RCX: 1ffff1101440d5aa RDX: dffffc0000000000 RSI: ffff8880a206ad30 RDI: 0000000000000286 RBP: ffff8880ba022b40 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000022b40 R14: 0000000000000000 R15: ffff8880ba022b40 FS: 00007fed2708e700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fed2708dfc8 CR3: 00000000abede000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __mod_timer kernel/time/timer.c:1071 [inline] mod_timer+0x4ea/0x1010 kernel/time/timer.c:1114 call_timer_fn+0x177/0x700 kernel/time/timer.c:1338 expire_timers+0x243/0x4e0 kernel/time/timer.c:1375 __run_timers kernel/time/timer.c:1696 [inline] run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709 __do_softirq+0x265/0x980 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x215/0x260 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline] RIP: 0010:_raw_spin_unlock_irq+0x50/0x80 kernel/locking/spinlock.c:192 Code: c0 98 82 f1 89 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 31 48 83 3d 01 31 d8 01 00 74 25 fb 66 0f 1f 44 00 00 01 00 00 00 e8 26 1b 28 f9 65 8b 05 9f 8d e8 77 85 c0 74 02 5d RSP: 0018:ffff888029787850 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff13e3053 RBX: ffff8880297879b8 RCX: 1ffff1101440d5a5 RDX: dffffc0000000000 RSI: ffff8880a206ad08 RDI: ffff8880a206ad04 ieee802154 phy0 wpan0: encryption failed: -22 RBP: ffff8880297879c0 R08: 0000000000000000 R09: 0000000000000000 ieee802154 phy1 wpan1: encryption failed: -22 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880297879c0 R13: 7fffffffffffffff R14: ffff8880297879f8 R15: dffffc0000000000 spin_unlock_irq include/linux/spinlock.h:379 [inline] __wait_for_common kernel/sched/completion.c:105 [inline] wait_for_common+0xdb/0x470 kernel/sched/completion.c:115 wait_for_completion_killable+0x14/0x30 kernel/sched/completion.c:241 __kthread_create_on_node+0x250/0x410 kernel/kthread.c:324 kthread_create_on_node+0xbb/0xf0 kernel/kthread.c:392 loop_prepare_queue drivers/block/loop.c:929 [inline] loop_set_fd drivers/block/loop.c:979 [inline] lo_ioctl+0xae5/0x20e0 drivers/block/loop.c:1576 __blkdev_driver_ioctl block/ioctl.c:303 [inline] blkdev_ioctl+0x5cb/0x1a80 block/ioctl.c:601 block_ioctl+0xe9/0x130 fs/block_dev.c:1906 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:501 [inline] do_vfs_ioctl+0xcdb/0x12e0 fs/ioctl.c:688 ksys_ioctl+0x9b/0xc0 fs/ioctl.c:705 __do_sys_ioctl fs/ioctl.c:712 [inline] __se_sys_ioctl fs/ioctl.c:710 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:710 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fed28718e07 Code: 3c 1c 48 f7 d8 49 39 c4 72 b8 e8 04 54 02 00 85 c0 78 bd 48 83 c4 08 4c 89 e0 5b 41 5c c3 0f 1f 44 00 00 b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fed2708df28 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fed287629c8 RCX: 00007fed28718e07 RDX: 0000000000000004 RSI: 0000000000004c00 RDI: 0000000000000005 RBP: 0000000000000005 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000004 R13: 0000000000000004 R14: 0000000020000200 R15: 0000000000000000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 27301 Comm: syz-executor.4 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:clear_page_erms+0x7/0x10 arch/x86/lib/clear_page_64.S:48 Code: 48 89 47 18 48 89 47 20 48 89 47 28 48 89 47 30 48 89 47 38 48 8d 7f 40 75 d9 90 c3 0f 1f 80 00 00 00 00 b9 00 10 00 00 31 c0 aa c3 90 90 90 90 90 90 41 57 41 56 41 55 41 54 55 53 48 89 fb RSP: 0000:ffff888028eafb88 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff888000000000 RCX: 0000000000000540 RDX: 1ffff1100725273f RSI: ffffffff818aeed1 RDI: ffff8880254e3ac0 RBP: ffff888039292640 R08: ffffffffffffffe8 R09: 0000000000000000 R10: 0000000000000004 R11: 0000000000440549 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: ffff888028eafd48 FS: 000055555661b400(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000740 CR3: 00000000a2dca000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: clear_page arch/x86/include/asm/page_64.h:49 [inline] clear_user_page arch/x86/include/asm/page.h:28 [inline] clear_user_highpage include/linux/highmem.h:137 [inline] clear_subpage.constprop.0+0x7d/0x100 mm/memory.c:4849 process_huge_page mm/memory.c:4803 [inline] clear_huge_page+0xa2/0x460 mm/memory.c:4863 __do_huge_pmd_anonymous_page mm/huge_memory.c:583 [inline] do_huge_pmd_anonymous_page+0xbb5/0x1e60 mm/huge_memory.c:740 create_huge_pmd mm/memory.c:4066 [inline] __handle_mm_fault+0x289c/0x41c0 mm/memory.c:4270 handle_mm_fault+0x436/0xb10 mm/memory.c:4336 __do_page_fault+0x68e/0xd60 arch/x86/mm/fault.c:1412 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1205 RIP: 0033:0x7f8b2356121a Code: 30 48 8b 34 24 48 85 f6 74 17 8b 44 24 18 0f c8 89 c0 48 89 44 24 18 48 83 fe 01 0f 85 a1 01 00 00 48 8b 44 24 10 8b 74 24 18 <89> 30 e9 d2 fc ff ff 48 8b 44 24 10 8b 10 48 8b 04 24 48 85 c0 0f RSP: 002b:00007ffd0889b540 EFLAGS: 00010246 RAX: 0000000020000740 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 582cc99fce5cb8cf RSI: 0000000000000001 RDI: 000055555661b2e8 RBP: 00007ffd0889b638 R08: 0000000000000000 R09: 0000000000000000 R10: 0015732e2e3fc81b R11: 0000000000000001 R12: 0000000000000001 R13: 0000000000000000 R14: 0000000000000001 R15: 00007ffd0889b820 ---------------- Code disassembly (best guess): 0: 48 c7 c0 88 82 f1 89 mov $0xffffffff89f18288,%rax 7: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx e: fc ff df 11: 48 c1 e8 03 shr $0x3,%rax 15: 80 3c 10 00 cmpb $0x0,(%rax,%rdx,1) 19: 75 2f jne 0x4a 1b: 48 83 3d 7c 31 d8 01 cmpq $0x0,0x1d8317c(%rip) # 0x1d8319f 22: 00 23: 74 15 je 0x3a 25: 48 89 df mov %rbx,%rdi 28: 57 push %rdi 29: 9d popfq * 2a: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) <-- trapping instruction 2f: eb b2 jmp 0xffffffe3 31: e8 fb eb e6 f8 callq 0xf8e6ec31 36: eb c0 jmp 0xfffffff8 38: 0f 0b ud2 3a: 0f 0b ud2 3c: 48 rex.W 3d: c7 .byte 0xc7 3e: c7 (bad) 3f: 88 .byte 0x88