IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready
IPv6: ADDRCONF(NETDEV_UP): veth1_vlan: link is not ready
==================================================================
BUG: KASAN: slab-out-of-bounds in memcpy include/linux/string.h:376 [inline]
BUG: KASAN: slab-out-of-bounds in ext4_write_inline_data.isra.4+0x27a/0x480 fs/ext4/inline.c:251
Write of size 70 at addr ffff88809ceea4ef by task syz-executor.4/9625

CPU: 1 PID: 9625 Comm: syz-executor.4 Not tainted 4.14.228-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x14b/0x1e7 lib/dump_stack.c:58
 print_address_description.cold.6+0x9/0x1ca mm/kasan/report.c:252
 kasan_report_error mm/kasan/report.c:351 [inline]
 kasan_report mm/kasan/report.c:409 [inline]
 kasan_report.cold.7+0x11a/0x2d3 mm/kasan/report.c:393
 check_memory_region_inline mm/kasan/kasan.c:260 [inline]
 check_memory_region+0x13c/0x1b0 mm/kasan/kasan.c:267
 memcpy+0x37/0x50 mm/kasan/kasan.c:303
 memcpy include/linux/string.h:376 [inline]
 ext4_write_inline_data.isra.4+0x27a/0x480 fs/ext4/inline.c:251
 ext4_write_inline_data_end+0x1dd/0x450 fs/ext4/inline.c:760
 ext4_write_end+0x4ee/0xb20 fs/ext4/inode.c:1422
 ext4_da_write_end+0x616/0x990 fs/ext4/inode.c:3177
 generic_perform_write+0x2ce/0x450 mm/filemap.c:3066
 __generic_file_write_iter+0x205/0x590 mm/filemap.c:3180
 ext4_file_write_iter+0x279/0xe30 fs/ext4/file.c:270
 call_write_iter include/linux/fs.h:1778 [inline]
 new_sync_write fs/read_write.c:469 [inline]
 __vfs_write+0x413/0x840 fs/read_write.c:482
 vfs_write+0x150/0x4f0 fs/read_write.c:544
 SYSC_write fs/read_write.c:590 [inline]
 SyS_write+0x100/0x250 fs/read_write.c:582
 do_syscall_64+0x1c7/0x5b0 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x465b09
RSP: 002b:00007fb40e437188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 0000000000465b09
RDX: 0000000000000082 RSI: 0000000020000180 RDI: 0000000000000003
RBP: 00000000004b069f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60
R13: 00007ffee37e8f6f R14: 00007fb40e437300 R15: 0000000000022000

Allocated by task 8304:
 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:59
 save_stack mm/kasan/kasan.c:447 [inline]
 set_track mm/kasan/kasan.c:459 [inline]
 kasan_kmalloc.part.1+0x62/0xf0 mm/kasan/kasan.c:551
 kasan_kmalloc+0xaf/0xc0 mm/kasan/kasan.c:536
 __do_kmalloc_node mm/slab.c:3682 [inline]
 __kmalloc_node_track_caller+0x50/0x70 mm/slab.c:3696
 __kmalloc_reserve.isra.7+0x2c/0xc0 net/core/skbuff.c:137
 __alloc_skb+0xc1/0x540 net/core/skbuff.c:205
 alloc_skb include/linux/skbuff.h:980 [inline]
 netlink_alloc_large_skb net/netlink/af_netlink.c:1159 [inline]
 netlink_sendmsg+0x90d/0xbe0 net/netlink/af_netlink.c:1853
 sock_sendmsg_nosec net/socket.c:646 [inline]
 sock_sendmsg+0xac/0xf0 net/socket.c:656
 SYSC_sendto net/socket.c:1763 [inline]
 SyS_sendto+0x1e4/0x2c0 net/socket.c:1731
 do_syscall_64+0x1c7/0x5b0 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb

Freed by task 8304:
 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:59
 save_stack mm/kasan/kasan.c:447 [inline]
 set_track mm/kasan/kasan.c:459 [inline]
 kasan_slab_free+0xab/0x190 mm/kasan/kasan.c:524
 __cache_free mm/slab.c:3496 [inline]
 kfree+0xcc/0x270 mm/slab.c:3815
 skb_free_head+0x74/0x90 net/core/skbuff.c:563
 skb_release_data+0x4e0/0x820 net/core/skbuff.c:583
 skb_release_all+0x3d/0x50 net/core/skbuff.c:640
 __kfree_skb net/core/skbuff.c:654 [inline]
 consume_skb+0x84/0x2a0 net/core/skbuff.c:714
 netlink_unicast_kernel net/netlink/af_netlink.c:1288 [inline]
 netlink_unicast+0x413/0x610 net/netlink/af_netlink.c:1313
 netlink_sendmsg+0x639/0xbe0 net/netlink/af_netlink.c:1878
 sock_sendmsg_nosec net/socket.c:646 [inline]
 sock_sendmsg+0xac/0xf0 net/socket.c:656
 SYSC_sendto net/socket.c:1763 [inline]
 SyS_sendto+0x1e4/0x2c0 net/socket.c:1731
 do_syscall_64+0x1c7/0x5b0 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb

The buggy address belongs to the object at ffff88809ceea280
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 111 bytes to the right of
 512-byte region [ffff88809ceea280, ffff88809ceea480)
The buggy address belongs to the page:
page:ffffea000273ba80 count:1 mapcount:0 mapping:ffff88809ceea000 index:0x0
flags: 0xfff00000000100(slab)
raw: 00fff00000000100 ffff88809ceea000 0000000000000000 0000000100000006
raw: ffffea000273d860 ffffea00027bace0 ffff88813fe60940 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff88809ceea380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88809ceea400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88809ceea480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                                                          ^
 ffff88809ceea500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88809ceea580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================