netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'. IPv6: ADDRCONF(NETDEV_UP): veth1261: link is not ready netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. rcu: INFO: rcu_preempt self-detected stall on CPU rcu: 1-....: (1 GPs behind) idle=a3e/1/0x4000000000000004 softirq=88112/88113 fqs=5232 rcu: (t=10500 jiffies g=133865 q=19689) NMI backtrace for cpu 1 CPU: 1 PID: 12014 Comm: syz-executor.4 Not tainted 4.19.136-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2fe lib/dump_stack.c:118 nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1a6/0x1eb lib/nmi_backtrace.c:62 trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline] rcu_dump_cpu_stacks+0x15f/0x19c kernel/rcu/tree.c:1340 print_cpu_stall kernel/rcu/tree.c:1478 [inline] check_cpu_stall kernel/rcu/tree.c:1550 [inline] __rcu_pending kernel/rcu/tree.c:3293 [inline] rcu_pending kernel/rcu/tree.c:3336 [inline] rcu_check_callbacks.cold+0x62d/0xe19 kernel/rcu/tree.c:2682 update_process_times+0x2a/0x70 kernel/time/timer.c:1649 tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:168 tick_sched_timer+0xfc/0x290 kernel/time/tick-sched.c:1278 __run_hrtimer kernel/time/hrtimer.c:1401 [inline] __hrtimer_run_queues+0x3f6/0xe60 kernel/time/hrtimer.c:1463 hrtimer_interrupt+0x32a/0x930 kernel/time/hrtimer.c:1521 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1067 [inline] smp_apic_timer_interrupt+0x10c/0x550 arch/x86/kernel/apic/apic.c:1092 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:rcu_lockdep_current_cpu_online kernel/rcu/tree.c:1079 [inline] RIP: 0010:rcu_lockdep_current_cpu_online+0xe4/0x1b0 kernel/rcu/tree.c:1068 Code: 9c 88 48 89 fa 48 c1 ea 03 80 3c 2a 00 0f 85 ac 00 00 00 48 03 1c c5 00 0f 9c 88 48 8d 7b 20 48 89 f8 48 c1 e8 03 80 3c 28 00 <0f> 85 a8 00 00 00 48 8d 7b 28 4c 8b 6b 20 48 89 f8 48 c1 e8 03 80 RSP: 0018:ffff8880ae707cd0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: 1ffff11015ce5a14 RBX: ffff8880ae72d080 RCX: ffffffff83608c83 RDX: 1ffffffff11381e1 RSI: ffffffff83608c91 RDI: ffff8880ae72d0a0 RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: ffffffff88d95b00 R13: 1ffff11015ce0fa5 R14: 0000000000000000 R15: 0000000000000000 rcu_read_lock_sched_held+0xd3/0x1d0 kernel/rcu/update.c:115 trace_timer_expire_exit include/trace/events/timer.h:121 [inline] call_timer_fn+0x617/0x700 kernel/time/timer.c:1338 expire_timers+0x243/0x4e0 kernel/time/timer.c:1374 __run_timers kernel/time/timer.c:1695 [inline] run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1708 __do_softirq+0x26c/0x9a0 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:544 [inline] smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1094 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:__write_once_size include/linux/compiler.h:220 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x44/0x50 kernel/kcov.c:109 Code: 75 2b 8b 90 d8 12 00 00 83 fa 02 75 20 48 8b 88 e0 12 00 00 8b 80 dc 12 00 00 48 8b 11 48 83 c2 01 48 39 d0 76 07 48 89 34 d1 <48> 89 11 c3 0f 1f 84 00 00 00 00 00 49 89 f1 49 89 fa 65 48 8b 34 RSP: 0018:ffff8880251c7798 EFLAGS: 00000216 ORIG_RAX: ffffffffffffff13 RAX: 0000000000040000 RBX: 0000000000000001 RCX: ffffc9000e2fa000 RDX: 00000000000012b5 RSI: ffffffff81746ade RDI: 0000000000000005 RBP: 000000000045cc79 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000005 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: ffff8880aa00a9c0 R15: 00000000000001c8 bpf_prog_kallsyms_find include/linux/rcupdate.h:628 [inline] is_bpf_text_address+0x18e/0x1b0 kernel/bpf/core.c:546 kernel_text_address kernel/extable.c:152 [inline] kernel_text_address+0xbd/0xf0 kernel/extable.c:122 __kernel_text_address+0x9/0x30 kernel/extable.c:107 unwind_get_return_address arch/x86/kernel/unwind_orc.c:297 [inline] unwind_get_return_address+0x51/0x90 arch/x86/kernel/unwind_orc.c:292 __save_stack_trace+0xaf/0x190 arch/x86/kernel/stacktrace.c:45 save_stack mm/kasan/kasan.c:448 [inline] set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:553 slab_post_alloc_hook mm/slab.h:445 [inline] slab_alloc mm/slab.c:3397 [inline] kmem_cache_alloc+0x110/0x370 mm/slab.c:3557 kmem_cache_zalloc include/linux/slab.h:699 [inline] __alloc_file+0x21/0x330 fs/file_table.c:100 alloc_empty_file+0x6d/0x170 fs/file_table.c:150 alloc_file+0x5e/0x4d0 fs/file_table.c:192 alloc_file_pseudo+0x165/0x250 fs/file_table.c:231 hugetlb_file_setup+0x3e8/0x66e fs/hugetlbfs/inode.c:1378 newseg+0x46b/0xdf0 ipc/shm.c:652 ipcget_new ipc/util.c:315 [inline] ipcget+0xe6/0xcd0 ipc/util.c:614 ksys_shmget ipc/shm.c:742 [inline] __do_sys_shmget ipc/shm.c:747 [inline] __se_sys_shmget ipc/shm.c:745 [inline] __x64_sys_shmget+0x139/0x1a0 ipc/shm.c:745 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45cc79 Code: 2d b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 fb b5 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fcbe7cd5c78 EFLAGS: 00000246 ORIG_RAX: 000000000000001d RAX: ffffffffffffffda RBX: 0000000000031a00 RCX: 000000000045cc79 RDX: 0000000000007a00 RSI: 0000000000400000 RDI: 0000000000000000 RBP: 000000000078bf48 R08: 0000000000000000 R09: 0000000000000000 R10: 000000002000e000 R11: 0000000000000246 R12: 000000000078bf0c R13: 00007ffc244c5bcf R14: 00007fcbe7cd69c0 R15: 000000000078bf0c