bond1: making interface bridge2 the new active one
bond1: Enslaving bridge2 as an active interface with an up link
==================================================================
netlink: 'syz-executor.1': attribute type 1 has an invalid length.
BUG: KASAN: use-after-free in __read_once_size include/linux/compiler.h:193 [inline]
BUG: KASAN: use-after-free in dev_queue_xmit_nit+0x87e/0xa20 net/core/dev.c:2004
Read of size 8 at addr ffff8880a1a359f0 by task syz-executor.5/14427

CPU: 1 PID: 14427 Comm: syz-executor.5 Not tainted 4.19.163-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2fe lib/dump_stack.c:118
 print_address_description.cold+0x54/0x219 mm/kasan/report.c:256
 kasan_report_error.cold+0x8a/0x1c7 mm/kasan/report.c:354
 kasan_report mm/kasan/report.c:412 [inline]
 __asan_report_load8_noabort+0x88/0x90 mm/kasan/report.c:433
 __read_once_size include/linux/compiler.h:193 [inline]
 dev_queue_xmit_nit+0x87e/0xa20 net/core/dev.c:2004
 xmit_one net/core/dev.c:3252 [inline]
 dev_hard_start_xmit+0xaa/0x920 net/core/dev.c:3272
 __dev_queue_xmit+0x269d/0x2e00 net/core/dev.c:3838
 neigh_hh_output include/net/neighbour.h:491 [inline]
 neigh_output include/net/neighbour.h:499 [inline]
 ip6_finish_output2+0xde7/0x2290 net/ipv6/ip6_output.c:120
 ip6_finish_output+0x7eb/0xc10 net/ipv6/ip6_output.c:154
 NF_HOOK_COND include/linux/netfilter.h:278 [inline]
 ip6_output+0x205/0x770 net/ipv6/ip6_output.c:171
 dst_output include/net/dst.h:455 [inline]
 ip6_local_out+0xaf/0x170 net/ipv6/output_core.c:178
 ip6_send_skb+0xb3/0x300 net/ipv6/ip6_output.c:1699
 ip6_push_pending_frames+0xbd/0xe0 net/ipv6/ip6_output.c:1719
 icmpv6_push_pending_frames+0x294/0x470 net/ipv6/icmp.c:288
 icmp6_send+0x1bfa/0x22a0 net/ipv6/icmp.c:584
 icmpv6_send+0xde/0x210 net/ipv6/ip6_icmp.c:43
 ip6_link_failure+0x26/0x4e0 net/ipv6/route.c:2297
 dst_link_failure include/net/dst.h:438 [inline]
 ndisc_error_report+0xc7/0x190 net/ipv6/ndisc.c:695
 neigh_invalidate+0x22c/0x540 net/core/neighbour.c:900
 neigh_timer_handler+0x9b2/0xc70 net/core/neighbour.c:986
 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+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
 </IRQ>
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 81 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 dc a8 db 01 00 74 15 48 89 df 57 9d <0f> 1f 44 00 00 eb b2 e8 8a 6a ea f8 eb c0 0f 0b 0f 0b 48 c7 c7 88
RSP: 0018:ffff88808c9a7918 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff13e3031 RBX: 0000000000000286 RCX: 1ffff1100ba58d2a
RDX: dffffc0000000000 RSI: ffff88805d2c6958 RDI: 0000000000000286
RBP: ffffffff89f88358 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88805d2c6080
R13: 0000000000000000 R14: 0000000000007185 R15: ffffffff89f87f40
 rcu_report_unblock_qs_rnp kernel/rcu/tree.c:2372 [inline]
 rcu_read_unlock_special+0xa9b/0xfc0 kernel/rcu/tree_plugin.h:585
 __rcu_read_unlock+0x158/0x160 kernel/rcu/tree_plugin.h:428
 rcu_read_unlock include/linux/rcupdate.h:680 [inline]
 count_memcg_event_mm include/linux/memcontrol.h:767 [inline]
 handle_mm_fault+0x326/0xb10 mm/memory.c:4275
 __do_page_fault+0x68e/0xd60 arch/x86/mm/fault.c:1412
 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1205
RIP: 0010:copy_user_enhanced_fast_string+0xe/0x20 arch/x86/lib/copy_user_64.S:181
Code: 89 d1 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 31 c0 0f 1f 00 c3 0f 1f 80 00 00 00 00 0f 1f 00 83 fa 40 0f 82 70 ff ff ff 89 d1 <f3> a4 31 c0 0f 1f 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 83
RSP: 0018:ffff88808c9a7b98 EFLAGS: 00010206
RAX: ffffed100b982800 RBX: 0000000000001000 RCX: 0000000000000200
RDX: 0000000000001000 RSI: ffff88805cc13e00 RDI: 000000002002f000
RBP: 000000002002e200 R08: 0000000000000000 R09: ffffed100b9827ff
R10: ffff88805cc13fff R11: 0000000000000000 R12: ffff88805cc13000
R13: 000000002002f200 R14: 00007ffffffff000 R15: 0000000000000000
 copy_user_generic arch/x86/include/asm/uaccess_64.h:37 [inline]
 raw_copy_to_user arch/x86/include/asm/uaccess_64.h:128 [inline]
 copyout+0xcd/0xf0 lib/iov_iter.c:137
 copy_page_to_iter_iovec lib/iov_iter.c:206 [inline]
 copy_page_to_iter+0x3ac/0xe00 lib/iov_iter.c:853
 pipe_read+0x285/0x960 fs/pipe.c:294
 call_read_iter include/linux/fs.h:1815 [inline]
 new_sync_read fs/read_write.c:406 [inline]
 __vfs_read+0x518/0x750 fs/read_write.c:418
 vfs_read+0x194/0x3c0 fs/read_write.c:452
 ksys_read+0x12b/0x2a0 fs/read_write.c:579
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45e159
Code: 0d b4 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 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fa6b970cc68 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045e159
RDX: 0000000050c7e3e3 RSI: 0000000020000200 RDI: 0000000000000007
RBP: 000000000119bfc0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000119bf8c
R13: 00007ffffb9308bf R14: 00007fa6b970d9c0 R15: 000000000119bf8c

Allocated by task 14437:
 __do_kmalloc mm/slab.c:3727 [inline]
 __kmalloc+0x15a/0x3c0 mm/slab.c:3736
 kmalloc include/linux/slab.h:520 [inline]
 sk_prot_alloc+0x1e2/0x2d0 net/core/sock.c:1466
 sk_alloc+0x36/0xec0 net/core/sock.c:1520
 packet_create+0x117/0x850 net/packet/af_packet.c:3259
 __sock_create+0x3d8/0x740 net/socket.c:1276
 sock_create net/socket.c:1316 [inline]
 __sys_socket+0xef/0x200 net/socket.c:1346
 __do_sys_socket net/socket.c:1355 [inline]
 __se_sys_socket net/socket.c:1353 [inline]
 __x64_sys_socket+0x6f/0xb0 net/socket.c:1353
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

Freed by task 14435:
 __cache_free mm/slab.c:3503 [inline]
 kfree+0xcc/0x210 mm/slab.c:3822
 sk_prot_free net/core/sock.c:1503 [inline]
 __sk_destruct+0x684/0x8a0 net/core/sock.c:1584
 sk_destruct net/core/sock.c:1599 [inline]
 __sk_free+0x165/0x3b0 net/core/sock.c:1610
 sk_free+0x3b/0x50 net/core/sock.c:1621
 sock_put include/net/sock.h:1711 [inline]
 packet_release+0x890/0xb70 net/packet/af_packet.c:3088
 __sock_release+0xcd/0x2a0 net/socket.c:579
 sock_close+0x15/0x20 net/socket.c:1140
 __fput+0x2ce/0x890 fs/file_table.c:278
 task_work_run+0x148/0x1c0 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:193 [inline]
 exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167
 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

The buggy address belongs to the object at ffff8880a1a35200
 which belongs to the cache kmalloc-2048 of size 2048
The buggy address is located 2032 bytes inside of
 2048-byte region [ffff8880a1a35200, ffff8880a1a35a00)
The buggy address belongs to the page:
page:ffffea0002868d00 count:1 mapcount:0 mapping:ffff88813bff0c40 index:0x0 compound_mapcount: 0
flags: 0xfff00000008100(slab|head)
raw: 00fff00000008100 ffffea00028c1808 ffffea0001676008 ffff88813bff0c40
raw: 0000000000000000 ffff8880a1a34100 0000000100000003 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8880a1a35880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8880a1a35900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff8880a1a35980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                             ^
 ffff8880a1a35a00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8880a1a35a80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================