nla_parse: 49 callbacks suppressed
netlink: 12 bytes leftover after parsing attributes in process `syz-executor.0'.
==================================================================
BUG: KASAN: slab-out-of-bounds in ether_addr_equal include/linux/etherdevice.h:321 [inline]
BUG: KASAN: slab-out-of-bounds in ipvlan_xmit_mode_l2 drivers/net/ipvlan/ipvlan_core.c:605 [inline]
BUG: KASAN: slab-out-of-bounds in ipvlan_queue_xmit+0x69b/0x18e0 drivers/net/ipvlan/ipvlan_core.c:651
Read of size 4 at addr ffff8880a02bd77f by task syz-executor.4/27710

CPU: 1 PID: 27710 Comm: syz-executor.4 Not tainted 4.19.202-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/0x2ef lib/dump_stack.c:118
 print_address_description.cold+0x54/0x219 mm/kasan/report.c:256
 kasan_report_error.cold+0x8a/0x1b9 mm/kasan/report.c:354
 kasan_report mm/kasan/report.c:412 [inline]
 __asan_report_load4_noabort+0x88/0x90 mm/kasan/report.c:432
netlink: 25 bytes leftover after parsing attributes in process `syz-executor.3'.
 ether_addr_equal include/linux/etherdevice.h:321 [inline]
 ipvlan_xmit_mode_l2 drivers/net/ipvlan/ipvlan_core.c:605 [inline]
 ipvlan_queue_xmit+0x69b/0x18e0 drivers/net/ipvlan/ipvlan_core.c:651
 ipvlan_start_xmit+0x4f/0x190 drivers/net/ipvlan/ipvlan_main.c:290
 __netdev_start_xmit include/linux/netdevice.h:4345 [inline]
 netdev_start_xmit include/linux/netdevice.h:4359 [inline]
 dev_direct_xmit+0x3f9/0x6d0 net/core/dev.c:3905
 packet_snd net/packet/af_packet.c:2988 [inline]
 packet_sendmsg+0x25ae/0x7720 net/packet/af_packet.c:3013
 sock_sendmsg_nosec net/socket.c:651 [inline]
 sock_sendmsg+0xc3/0x120 net/socket.c:661
 ___sys_sendmsg+0x7bb/0x8e0 net/socket.c:2225
 __sys_sendmsg net/socket.c:2263 [inline]
 __do_sys_sendmsg net/socket.c:2272 [inline]
 __se_sys_sendmsg net/socket.c:2270 [inline]
 __x64_sys_sendmsg+0x132/0x220 net/socket.c:2270
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4665e9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f11439c8188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9
RDX: 0000000000000000 RSI: 0000000020000600 RDI: 0000000000000003
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007ffeadeac3af R14: 00007f11439c8300 R15: 0000000000022000

Allocated by task 25596:
 kmem_cache_alloc+0x122/0x370 mm/slab.c:3559
 getname_flags+0xce/0x590 fs/namei.c:140
 getname fs/namei.c:211 [inline]
 user_path_create fs/namei.c:3696 [inline]
 do_symlinkat+0xce/0x2c0 fs/namei.c:4149
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

Freed by task 25596:
 __cache_free mm/slab.c:3503 [inline]
 kmem_cache_free+0x7f/0x260 mm/slab.c:3765
 putname+0xe1/0x120 fs/namei.c:261
 filename_create+0x22e/0x490 fs/namei.c:3661
 user_path_create fs/namei.c:3696 [inline]
 do_symlinkat+0xe1/0x2c0 fs/namei.c:4149
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

The buggy address belongs to the object at ffff8880a02bc3c0
 which belongs to the cache names_cache of size 4096
The buggy address is located 959 bytes to the right of
 4096-byte region [ffff8880a02bc3c0, ffff8880a02bd3c0)
The buggy address belongs to the page:
page:ffffea000280af00 count:1 mapcount:0 mapping:ffff88823b843380 index:0x0 compound_mapcount: 0
flags: 0xfff00000008100(slab|head)
raw: 00fff00000008100 ffffea0002cfc188 ffffea000088bd88 ffff88823b843380
raw: 0000000000000000 ffff8880a02bc3c0 0000000100000001 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8880a02bd600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8880a02bd680: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff8880a02bd700: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                                                                ^
 ffff8880a02bd780: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8880a02bd800: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================