netlink: 'syz-executor.2': attribute type 7 has an invalid length. netlink: 'syz-executor.2': attribute type 39 has an invalid length. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.1'. watchdog: BUG: soft lockup - CPU#1 stuck for 24s! [syz-executor.5:10294] Modules linked in: irq event stamp: 3501453 hardirqs last enabled at (3501452): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (3501452): [] _raw_spin_unlock_irq+0x24/0x80 kernel/locking/spinlock.c:192 hardirqs last disabled at (3501453): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (3498126): [] __do_softirq+0x678/0x980 kernel/softirq.c:318 softirqs last disabled at (3498129): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (3498129): [] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 1 PID: 10294 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:__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: 0000:ffff8880ba107de0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff13e3053 RBX: dffffc0000000000 RCX: 1ffff1101278bd65 RDX: dffffc0000000000 RSI: ffff888093c5eb30 RDI: ffff888093c5eb04 RBP: ffff8880ba122b40 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff869a4ab0 R13: ffff8880ba122b40 R14: ffff8880ba107e78 R15: 0000000000000000 FS: 00005555557b4400(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b3152b000 CR3: 0000000009e6d000 CR4: 00000000003426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 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:__sanitizer_cov_trace_pc+0x0/0x50 kernel/kcov.c:97 Code: ff 48 89 df e8 11 dd 35 00 e9 ab fe ff ff 4c 89 ef e8 04 dd 35 00 e9 23 fe ff ff 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <48> 8b 34 24 65 48 8b 04 25 c0 df 01 00 65 8b 15 cc 59 9f 7e 81 e2 RSP: 0000:ffff88821f18f700 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff818fb155 RDX: 0000000000000000 RSI: ffff888093c5e280 RDI: 0000000000000001 RBP: ffffea0000466f40 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: ffffea0000466f40 R15: 00007fb35b769000 page_remove_file_rmap+0x6a/0xa30 mm/rmap.c:1246 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+0x277/0x2d0 arch/x86/entry/common.c:198 retint_user+0x8/0x18 RIP: 0033:0x7fb35d73fab6 Code: Bad RIP value. RSP: 002b:00007fff829ad2e0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 000000002df37860 RBX: 00007fb35d509008 RCX: 0000001b31520000 RDX: 0000001b3152bf1c RSI: ffffffff81b09c4a RDI: 000000000000b37a RBP: 0000000000000001 R08: 0000000081b09c4a R09: 0000001b31529574 R10: ffffffff81b09beb R11: 000000002df37862 R12: 000000000000b37a R13: 00007fb35d889000 R14: ffffffff81b09c4a R15: 00007fb35d894ff0 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:check_memory_region+0xb1/0x170 mm/kasan/kasan.c:268 Code: 08 48 39 d0 74 7b 48 83 38 00 74 f1 48 8d 50 08 eb 09 48 83 c0 01 48 39 d0 74 0e 80 38 00 74 f2 48 85 c0 0f 85 9c 00 00 00 5b <5d> 41 5c c3 48 85 d2 74 f6 48 01 ea eb 09 48 83 c0 01 48 39 d0 74 RSP: 0018:ffff8880ba007a68 EFLAGS: 00000046 RAX: fffffbfff19abed8 RBX: 0000000000000000 RCX: ffffffff814afa31 RDX: fffffbfff19abed8 RSI: 0000000000000004 RDI: ffffffff8cd5f6b8 RBP: fffffbfff19abed7 R08: 0000000000000001 R09: fffffbfff19abed7 R10: ffffffff8cd5f6bb R11: ffffffff8c66501b R12: 0000000000000001 R13: ffffffff89e78080 R14: ffffffff8d3cd7a0 R15: 0000000000000001 FS: 0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c00064c78c CR3: 000000009b265000 CR4: 00000000003426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: atomic_inc include/asm-generic/atomic-instrumented.h:109 [inline] __lock_acquire+0x251/0x3ff0 kernel/locking/lockdep.c:3308 lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3908 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0x8c/0xc0 kernel/locking/spinlock.c:152 debug_object_activate+0x12f/0x450 lib/debugobjects.c:472 debug_hrtimer_activate kernel/time/hrtimer.c:416 [inline] debug_activate kernel/time/hrtimer.c:465 [inline] enqueue_hrtimer+0x27/0x3d0 kernel/time/hrtimer.c:972 __run_hrtimer kernel/time/hrtimer.c:1480 [inline] __hrtimer_run_queues+0xae6/0xe60 kernel/time/hrtimer.c:1527 hrtimer_interrupt+0x326/0x9e0 kernel/time/hrtimer.c:1585 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1071 [inline] smp_apic_timer_interrupt+0x10c/0x550 arch/x86/kernel/apic/apic.c:1096 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:native_safe_halt+0xe/0x10 arch/x86/include/asm/irqflags.h:61 Code: 48 89 df e8 f4 20 7f f9 e9 2e ff ff ff 48 89 df e8 e7 20 7f f9 eb 82 90 90 90 90 90 e9 07 00 00 00 0f 00 2d 14 43 4e 00 fb f4 90 e9 07 00 00 00 0f 00 2d 04 43 4e 00 f4 c3 90 90 41 56 41 55 RSP: 0018:ffffffff89e07d40 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff13e3054 RBX: dffffc0000000000 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffffffff89e78904 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff89f18290 R13: 1ffffffff13c0fb2 R14: 0000000000000000 R15: 0000000000000000 arch_safe_halt arch/x86/include/asm/paravirt.h:94 [inline] default_idle+0x49/0x310 arch/x86/kernel/process.c:557 cpuidle_idle_call kernel/sched/idle.c:153 [inline] do_idle+0x2ec/0x4b0 kernel/sched/idle.c:263 cpu_startup_entry+0xc5/0xe0 kernel/sched/idle.c:369 start_kernel+0x8d6/0x911 init/main.c:736 secondary_startup_64+0xa4/0xb0 arch/x86/kernel/head_64.S:243 ---------------- 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