binder_alloc: 4215: binder_alloc_buf, no vma
binder: 4215:4235 transaction failed 29189/-3, size 0-0 line 2890
binder: undelivered TRANSACTION_ERROR: 29189
8021q: VLANs not supported on lo
==================================================================
BUG: KASAN: slab-out-of-bounds in memcpy include/linux/string.h:341 [inline]
BUG: KASAN: slab-out-of-bounds in sha3_update+0xdf/0x2e0 crypto/sha3_generic.c:161
Write of size 204 at addr ffff8801cbbc917c by task syz-executor2/4287

CPU: 1 PID: 4287 Comm: syz-executor2 Not tainted 4.15.0-rc2+ #125
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+0x194/0x257 lib/dump_stack.c:53
 print_address_description+0x73/0x250 mm/kasan/report.c:252
 kasan_report_error mm/kasan/report.c:351 [inline]
 kasan_report+0x25b/0x340 mm/kasan/report.c:409
 check_memory_region_inline mm/kasan/kasan.c:260 [inline]
 check_memory_region+0x137/0x190 mm/kasan/kasan.c:267
 memcpy+0x37/0x50 mm/kasan/kasan.c:303
 memcpy include/linux/string.h:341 [inline]
 sha3_update+0xdf/0x2e0 crypto/sha3_generic.c:161
 crypto_shash_update+0xcb/0x220 crypto/shash.c:109
 hmac_update+0x7e/0xa0 crypto/hmac.c:122
 crypto_shash_update+0xcb/0x220 crypto/shash.c:109
 kdf_ctr security/keys/dh.c:181 [inline]
 keyctl_dh_compute_kdf security/keys/dh.c:226 [inline]
 __keyctl_dh_compute+0x16d8/0x1a00 security/keys/dh.c:398
 compat_keyctl_dh_compute+0x2bb/0x3e0 security/keys/compat_dh.c:39
 C_SYSC_keyctl security/keys/compat.c:136 [inline]
 compat_SyS_keyctl+0x72/0x2c0 security/keys/compat.c:59
 do_syscall_32_irqs_on arch/x86/entry/common.c:327 [inline]
 do_fast_syscall_32+0x3ee/0xf9d arch/x86/entry/common.c:389
 entry_SYSENTER_compat+0x51/0x60 arch/x86/entry/entry_64_compat.S:125
RIP: 0023:0xf7f34c79
RSP: 002b:00000000f773008c EFLAGS: 00000296 ORIG_RAX: 0000000000000120
RAX: ffffffffffffffda RBX: 0000000000000017 RCX: 0000000020cf1ff4
RDX: 00000000205cd000 RSI: 0000000000000030 RDI: 0000000020550000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000

Allocated by task 4287:
 save_stack+0x43/0xd0 mm/kasan/kasan.c:447
 set_track mm/kasan/kasan.c:459 [inline]
 kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:551
 __do_kmalloc mm/slab.c:3711 [inline]
 __kmalloc+0x162/0x760 mm/slab.c:3720
 kmalloc include/linux/slab.h:504 [inline]
 kdf_alloc security/keys/dh.c:111 [inline]
 __keyctl_dh_compute+0x2a1/0x1a00 security/keys/dh.c:288
 compat_keyctl_dh_compute+0x2bb/0x3e0 security/keys/compat_dh.c:39
 C_SYSC_keyctl security/keys/compat.c:136 [inline]
 compat_SyS_keyctl+0x72/0x2c0 security/keys/compat.c:59
 do_syscall_32_irqs_on arch/x86/entry/common.c:327 [inline]
 do_fast_syscall_32+0x3ee/0xf9d arch/x86/entry/common.c:389
 entry_SYSENTER_compat+0x51/0x60 arch/x86/entry/entry_64_compat.S:125

Freed by task 2860:
 save_stack+0x43/0xd0 mm/kasan/kasan.c:447
 set_track mm/kasan/kasan.c:459 [inline]
 kasan_slab_free+0x71/0xc0 mm/kasan/kasan.c:524
 __cache_free mm/slab.c:3491 [inline]
 kfree+0xca/0x250 mm/slab.c:3806
 skb_free_head+0x74/0xb0 net/core/skbuff.c:550
 skb_release_data+0x58c/0x790 net/core/skbuff.c:570
 skb_release_all+0x4a/0x60 net/core/skbuff.c:627
 __kfree_skb net/core/skbuff.c:641 [inline]
 consume_skb+0x153/0x490 net/core/skbuff.c:701
 netlink_unicast_kernel net/netlink/af_netlink.c:1273 [inline]
 netlink_unicast+0x4f0/0x6f0 net/netlink/af_netlink.c:1298
 netlink_sendmsg+0xa4a/0xe70 net/netlink/af_netlink.c:1861
 sock_sendmsg_nosec net/socket.c:636 [inline]
 sock_sendmsg+0xca/0x110 net/socket.c:646
 ___sys_sendmsg+0x75b/0x8a0 net/socket.c:2026
 __sys_sendmsg+0xe5/0x210 net/socket.c:2060
 SYSC_sendmsg net/socket.c:2071 [inline]
 SyS_sendmsg+0x2d/0x50 net/socket.c:2067
 entry_SYSCALL_64_fastpath+0x1f/0x96

The buggy address belongs to the object at ffff8801cbbc9080
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 252 bytes inside of
 512-byte region [ffff8801cbbc9080, ffff8801cbbc9280)
The buggy address belongs to the page:
page:00000000c37d5754 count:1 mapcount:0 mapping:000000002a14a393 index:0x0
flags: 0x2fffc0000000100(slab)
raw: 02fffc0000000100 ffff8801cbbc9080 0000000000000000 0000000100000006
raw: ffffea000741c5a0 ffffea0006f6c160 ffff8801db000940 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8801cbbc9100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8801cbbc9180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff8801cbbc9200: 00 fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                      ^
 ffff8801cbbc9280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8801cbbc9300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================