netlink: 'syz-executor6': attribute type 1 has an invalid length.
QAT: Invalid ioctl
netlink: 4 bytes leftover after parsing attributes in process `syz-executor6'.
QAT: Invalid ioctl
==================================================================
BUG: KASAN: use-after-free in nla_strlcpy+0x13d/0x150 lib/nlattr.c:314
Read of size 1 at addr ffff8801bcf231c7 by task syz-executor2/27241

CPU: 1 PID: 27241 Comm: syz-executor2 Not tainted 4.17.0-rc7+ #74
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+0x1b9/0x294 lib/dump_stack.c:113
 print_address_description+0x6c/0x20b mm/kasan/report.c:256
 kasan_report_error mm/kasan/report.c:354 [inline]
 kasan_report.cold.7+0x242/0x2fe mm/kasan/report.c:412
 __asan_report_load1_noabort+0x14/0x20 mm/kasan/report.c:430
 nla_strlcpy+0x13d/0x150 lib/nlattr.c:314
 nfnl_acct_new+0x574/0xc50 net/netfilter/nfnetlink_acct.c:118
 nfnetlink_rcv_msg+0xdb5/0xff0 net/netfilter/nfnetlink.c:212
 netlink_rcv_skb+0x172/0x440 net/netlink/af_netlink.c:2448
 nfnetlink_rcv+0x1fe/0x1ba0 net/netfilter/nfnetlink.c:513
 netlink_unicast_kernel net/netlink/af_netlink.c:1310 [inline]
 netlink_unicast+0x58b/0x740 net/netlink/af_netlink.c:1336
 netlink_sendmsg+0x9f0/0xfa0 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:629 [inline]
 sock_sendmsg+0xd5/0x120 net/socket.c:639
 ___sys_sendmsg+0x805/0x940 net/socket.c:2117
 __sys_sendmsg+0x115/0x270 net/socket.c:2155
 __do_sys_sendmsg net/socket.c:2164 [inline]
 __se_sys_sendmsg net/socket.c:2162 [inline]
 __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2162
 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x455a09
RSP: 002b:00007f8ebc011c68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f8ebc0126d4 RCX: 0000000000455a09
RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000013
RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000000005cf R14: 00000000006fdc08 R15: 0000000000000000

Allocated by task 26747:
 save_stack+0x43/0xd0 mm/kasan/kasan.c:448
 set_track mm/kasan/kasan.c:460 [inline]
 kasan_kmalloc+0xc4/0xe0 mm/kasan/kasan.c:553
 kmem_cache_alloc_trace+0x152/0x780 mm/slab.c:3620
 kmalloc include/linux/slab.h:512 [inline]
 kzalloc include/linux/slab.h:701 [inline]
 alloc_perf_context+0x4c/0xf0 kernel/events/core.c:4066
 find_get_context.isra.92+0x189/0x720 kernel/events/core.c:4155
 __do_sys_perf_event_open+0xe54/0x2fa0 kernel/events/core.c:10550
 __se_sys_perf_event_open kernel/events/core.c:10384 [inline]
 __x64_sys_perf_event_open+0xbe/0x150 kernel/events/core.c:10384
 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

Freed by task 26756:
 save_stack+0x43/0xd0 mm/kasan/kasan.c:448
 set_track mm/kasan/kasan.c:460 [inline]
 __kasan_slab_free+0x11a/0x170 mm/kasan/kasan.c:521
 kasan_slab_free+0xe/0x10 mm/kasan/kasan.c:528
 __cache_free mm/slab.c:3498 [inline]
 kfree+0xd9/0x260 mm/slab.c:3813
 free_ctx+0x47/0x60 kernel/events/core.c:1183
 __rcu_reclaim kernel/rcu/rcu.h:178 [inline]
 rcu_do_batch kernel/rcu/tree.c:2675 [inline]
 invoke_rcu_callbacks kernel/rcu/tree.c:2930 [inline]
 __rcu_process_callbacks kernel/rcu/tree.c:2897 [inline]
 rcu_process_callbacks+0x941/0x15f0 kernel/rcu/tree.c:2914
 __do_softirq+0x2e0/0xaf5 kernel/softirq.c:285

The buggy address belongs to the object at ffff8801bcf23000
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 455 bytes inside of
 512-byte region [ffff8801bcf23000, ffff8801bcf23200)
The buggy address belongs to the page:
page:ffffea0006f3c8c0 count:1 mapcount:0 mapping:ffff8801bcf23000 index:0xffff8801bcf23500
flags: 0x2fffc0000000100(slab)
raw: 02fffc0000000100 ffff8801bcf23000 ffff8801bcf23500 0000000100000001
raw: ffffea0006e30a20 ffffea00075fe0e0 ffff8801da800940 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8801bcf23080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff8801bcf23100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff8801bcf23180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                           ^
 ffff8801bcf23200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff8801bcf23280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================