IPVS: Creating netns size=2536 id=1
==================================================================
BUG: KASAN: slab-out-of-bounds in pfkey_msg2xfrm_state net/key/af_key.c:1227 [inline]
BUG: KASAN: slab-out-of-bounds in pfkey_add+0x153e/0x3470 net/key/af_key.c:1506
Read of size 8160 at addr ffff8801c33691c0 by task syz-executor0/3815

CPU: 1 PID: 3815 Comm: syz-executor0 Not tainted 4.9.88-g71df7bb #8
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d790f718 ffffffff81d95f19 ffffea00070cda00 ffff8801c33691c0
 0000000000000000 ffff8801c3369380 ffff8801d790f958 ffff8801d790f750
 ffffffff8153e793 ffff8801c33691c0 0000000000001fe0 0000000000000000
Call Trace:
 [<ffffffff81d95f19>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81d95f19>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff8153e793>] print_address_description+0x73/0x280 mm/kasan/report.c:256
 [<ffffffff8153ec95>] kasan_report_error mm/kasan/report.c:355 [inline]
 [<ffffffff8153ec95>] kasan_report+0x255/0x380 mm/kasan/report.c:412
 [<ffffffff8153d5c7>] check_memory_region_inline mm/kasan/kasan.c:318 [inline]
 [<ffffffff8153d5c7>] check_memory_region+0x137/0x190 mm/kasan/kasan.c:325
 [<ffffffff8153dc03>] memcpy+0x23/0x50 mm/kasan/kasan.c:360
 [<ffffffff835794ae>] pfkey_msg2xfrm_state net/key/af_key.c:1227 [inline]
 [<ffffffff835794ae>] pfkey_add+0x153e/0x3470 net/key/af_key.c:1506
 [<ffffffff83571a1b>] pfkey_process+0x68b/0x750 net/key/af_key.c:2834
 [<ffffffff83573279>] pfkey_sendmsg+0x3a9/0x760 net/key/af_key.c:3678
 [<ffffffff82edabaa>] sock_sendmsg_nosec net/socket.c:635 [inline]
 [<ffffffff82edabaa>] sock_sendmsg+0xca/0x110 net/socket.c:645
 [<ffffffff82edc7c1>] ___sys_sendmsg+0x6d1/0x7e0 net/socket.c:1969
 [<ffffffff82ede7f6>] __sys_sendmsg+0xd6/0x190 net/socket.c:2003
 [<ffffffff82fe11ba>] C_SYSC_sendmsg net/compat.c:734 [inline]
 [<ffffffff82fe11ba>] compat_SyS_sendmsg+0x2a/0x40 net/compat.c:732
 [<ffffffff81006f95>] do_syscall_32_irqs_on arch/x86/entry/common.c:325 [inline]
 [<ffffffff81006f95>] do_fast_syscall_32+0x2f5/0x870 arch/x86/entry/common.c:387
 [<ffffffff838b9190>] entry_SYSENTER_compat+0x90/0xa2 arch/x86/entry/entry_64_compat.S:137

Allocated by task 3815:
 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57
 save_stack+0x43/0xd0 mm/kasan/kasan.c:505
 set_track mm/kasan/kasan.c:517 [inline]
 kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:609
 kasan_slab_alloc+0x12/0x20 mm/kasan/kasan.c:547
 slab_post_alloc_hook mm/slab.h:417 [inline]
 slab_alloc_node mm/slub.c:2715 [inline]
 slab_alloc mm/slub.c:2723 [inline]
 __kmalloc_track_caller+0xda/0x2b0 mm/slub.c:4232
 __kmalloc_reserve.isra.37+0x33/0xc0 net/core/skbuff.c:138
 __alloc_skb+0x119/0x600 net/core/skbuff.c:231
 alloc_skb include/linux/skbuff.h:919 [inline]
 pfkey_sendmsg+0x135/0x760 net/key/af_key.c:3665
 sock_sendmsg_nosec net/socket.c:635 [inline]
 sock_sendmsg+0xca/0x110 net/socket.c:645
 ___sys_sendmsg+0x6d1/0x7e0 net/socket.c:1969
 __sys_sendmsg+0xd6/0x190 net/socket.c:2003
 C_SYSC_sendmsg net/compat.c:734 [inline]
 compat_SyS_sendmsg+0x2a/0x40 net/compat.c:732
 do_syscall_32_irqs_on arch/x86/entry/common.c:325 [inline]
 do_fast_syscall_32+0x2f5/0x870 arch/x86/entry/common.c:387
 entry_SYSENTER_compat+0x90/0xa2 arch/x86/entry/entry_64_compat.S:137

Freed by task 2202:
 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:57
 save_stack+0x43/0xd0 mm/kasan/kasan.c:505
 set_track mm/kasan/kasan.c:517 [inline]
 kasan_slab_free+0x72/0xc0 mm/kasan/kasan.c:582
 slab_free_hook mm/slub.c:1355 [inline]
 slab_free_freelist_hook mm/slub.c:1377 [inline]
 slab_free mm/slub.c:2958 [inline]
 kfree+0x103/0x300 mm/slub.c:3878
 load_elf_binary+0x1cf1/0x4690 fs/binfmt_elf.c:1080
 search_binary_handler+0x142/0x6b0 fs/exec.c:1622
 exec_binprm fs/exec.c:1664 [inline]
 do_execveat_common.isra.37+0x1594/0x1f10 fs/exec.c:1786
 do_execve fs/exec.c:1830 [inline]
 SYSC_execve fs/exec.c:1911 [inline]
 SyS_execve+0x42/0x50 fs/exec.c:1906
 do_syscall_64+0x1a4/0x490 arch/x86/entry/common.c:282
 entry_SYSCALL_64_after_swapgs+0x5d/0xdb

The buggy address belongs to the object at ffff8801c3369180
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 64 bytes inside of
 512-byte region [ffff8801c3369180, ffff8801c3369380)
The buggy address belongs to the page:
page:ffffea00070cda00 count:1 mapcount:0 mapping:          (null) index:0x0 compound_mapcount: 0
flags: 0x8000000000004080(slab|head)
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8801c3369280: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8801c3369300: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff8801c3369380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                   ^
 ffff8801c3369400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8801c3369480: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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