8021q: adding VLAN 0 to HW filter on device bond841 netlink: 'syz-executor.0': attribute type 1 has an invalid length. watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor.3:29454] Modules linked in: irq event stamp: 4062379 hardirqs last enabled at (4062378): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (4062379): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (2430906): [] __do_softirq+0x678/0x980 kernel/softirq.c:318 softirqs last disabled at (2430909): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (2430909): [] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 0 PID: 29454 Comm: syz-executor.3 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 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:ffff8880ba007de0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff13e3053 RBX: dffffc0000000000 RCX: 1ffff110424c01ad RDX: dffffc0000000000 RSI: ffff888212600d70 RDI: ffff888212600d44 RBP: ffff8880ba022b40 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff85d9bcc0 R13: ffff8880ba022b40 R14: ffff8880ba007e78 R15: 0000000000000000 FS: 00007eff037f5700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 device bridge771 entered promiscuous mode CR2: 00007faea15a23a5 CR3: 00000000b263a000 CR4: 00000000003426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: expire_timers+0x238/0x4e0 kernel/time/timer.c:1374 __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:get_current arch/x86/include/asm/current.h:15 [inline] RIP: 0010:__unlock_page_memcg+0x2b/0x100 mm/memcontrol.c:1946 Code: 85 ff 53 74 37 48 b8 00 00 00 00 00 fc ff df 48 89 fb 48 8d bf 88 06 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 b8 00 00 00 <65> 48 8b 04 25 c0 df 01 00 48 39 83 88 06 00 00 74 5a e8 9e d8 b1 RSP: 0018:ffff8882152f7730 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: ffff8880b59f68c0 RCX: ffffffff818fb155 RDX: 1ffff11016b3ede9 RSI: ffffffff818fb11a RDI: ffff8880b59f6f48 RBP: ffffea0002388b40 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: ffffea0002388b08 R15: 00007eff04f10000 page_remove_rmap+0xe5/0x120 mm/rmap.c:1297 zap_pte_range mm/memory.c:1350 [inline] zap_pmd_range mm/memory.c:1463 [inline] zap_pud_range mm/memory.c:1492 [inline] zap_p4d_range mm/memory.c:1513 [inline] unmap_page_range+0x147d/0x2c50 mm/memory.c:1534 unmap_single_vma+0x198/0x300 mm/memory.c:1579 unmap_vmas+0xa9/0x180 mm/memory.c:1609 exit_mmap+0x2b9/0x530 mm/mmap.c:3093 __mmput kernel/fork.c:1016 [inline] mmput+0x14e/0x4a0 kernel/fork.c:1037 exit_mm kernel/exit.c:549 [inline] do_exit+0xaec/0x2be0 kernel/exit.c:857 do_group_exit+0x125/0x310 kernel/exit.c:967 get_signal+0x3f2/0x1f70 kernel/signal.c:2589 do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:799 exit_to_usermode_loop+0x204/0x2a0 arch/x86/entry/common.c:163 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7eff04e7feb9 Code: Bad RIP value. RSP: 002b:00007eff037f5168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: 00000000000000a0 RBX: 00007eff04f92f60 RCX: 00007eff04e7feb9 RDX: 00000000000000a0 RSI: 00000000200004c0 RDI: 0000000000000004 RBP: 00007eff04eda08d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff7c417eef R14: 00007eff037f5300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 8095 Comm: syz-fuzzer Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0033:0x420c4c Code: ee 03 48 83 e6 03 4c 8d 82 ff ff 1f 00 49 89 f9 48 c1 ef 0d 48 81 e7 ff 1f 00 00 48 8b bc fa 00 00 20 00 84 02 90 48 8b 57 68 <48> 85 d2 0f 84 dd 02 00 00 66 0f 1f 84 00 00 00 00 00 66 90 48 81 RSP: 002b:000000c000039ea8 EFLAGS: 00000202 RAX: 0000000000203003 RBX: 00007fc2880fe775 RCX: 000000c000000c00 RDX: 0000000000000020 RSI: 0000000000000000 RDI: 00007fc2882dcfe8 RBP: 000000c000039f28 R08: 00007fc288295fff R09: 000000c00cd0eea0 R10: 000000000000002e R11: 000000000000002d R12: 0000000000000059 R13: 000000c000000c00 R14: 00000000008ddf52 R15: 0000000000000000 FS: 000000c00002e890 GS: 0000000000000000 ---------------- Code disassembly (best guess), 5 bytes skipped: 0: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx 7: fc ff df a: 48 c1 e8 03 shr $0x3,%rax e: 80 3c 10 00 cmpb $0x0,(%rax,%rdx,1) 12: 75 31 jne 0x45 14: 48 83 3d 01 31 d8 01 cmpq $0x0,0x1d83101(%rip) # 0x1d8311d 1b: 00 1c: 74 25 je 0x43 1e: fb sti 1f: 66 0f 1f 44 00 00 nopw 0x0(%rax,%rax,1) * 25: bf 01 00 00 00 mov $0x1,%edi <-- trapping instruction 2a: e8 26 1b 28 f9 callq 0xf9281b55 2f: 65 8b 05 9f 8d e8 77 mov %gs:0x77e88d9f(%rip),%eax # 0x77e88dd5 36: 85 c0 test %eax,%eax 38: 74 02 je 0x3c 3a: 5d pop %rbp