audit: type=1800 audit(2000000189.340:275): pid=29823 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="collect_data" cause="failed(directio)" comm="syz-executor.1" name="file0" dev="sda1" ino=18002 res=0
TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies.  Check SNMP counters.
==================================================================
BUG: KASAN: use-after-free in tls_write_space+0x249/0x2a0 net/tls/tls_main.c:222
Read of size 1 at addr ffff8880a0159e70 by task syz-executor.3/29799

CPU: 0 PID: 29799 Comm: syz-executor.3 Not tainted 4.14.113 #3
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+0x138/0x19c lib/dump_stack.c:53
 print_address_description.cold+0x7c/0x1dc 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+0xaf/0x2b5 mm/kasan/report.c:393
 __asan_report_load1_noabort+0x14/0x20 mm/kasan/report.c:427
 tls_write_space+0x249/0x2a0 net/tls/tls_main.c:222
 tcp_new_space net/ipv4/tcp_input.c:5083 [inline]
 tcp_check_space+0x3c0/0x670 net/ipv4/tcp_input.c:5094
 tcp_data_snd_check net/ipv4/tcp_input.c:5104 [inline]
 tcp_rcv_established+0x635/0x1650 net/ipv4/tcp_input.c:5550
 tcp_v6_do_rcv+0x41a/0x1190 net/ipv6/tcp_ipv6.c:1301
 sk_backlog_rcv include/net/sock.h:912 [inline]
 __release_sock+0x132/0x350 net/core/sock.c:2262
 release_sock+0x59/0x1c0 net/core/sock.c:2777
 tls_sk_proto_close+0x14a/0x760 net/tls/tls_main.c:294
 inet_release+0xf2/0x1c0 net/ipv4/af_inet.c:425
 inet6_release+0x53/0x80 net/ipv6/af_inet6.c:450
 __sock_release+0xd3/0x2c0 net/socket.c:602
 sock_close+0x1b/0x30 net/socket.c:1139
 __fput+0x277/0x7a0 fs/file_table.c:210
 ____fput+0x16/0x20 fs/file_table.c:244
 task_work_run+0x119/0x190 kernel/task_work.c:113
 get_signal+0x1689/0x1a80 kernel/signal.c:2220
 do_signal+0x86/0x1980 arch/x86/kernel/signal.c:809
 exit_to_usermode_loop+0x15c/0x220 arch/x86/entry/common.c:159
 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:267 [inline]
 do_syscall_64+0x4a9/0x630 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x458da9
RSP: 002b:00007f350767cc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: 00000000002d48ad RBX: 0000000000000006 RCX: 0000000000458da9
RDX: fffffffffffffe75 RSI: 0000000020000000 RDI: 0000000000000004
RBP: 000000000073bfa0 R08: 0000000000000000 R09: fffffffffffffef1
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f350767d6d4
R13: 00000000004c6732 R14: 00000000004db0f0 R15: 00000000ffffffff

Allocated by task 29799:
 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:59
 save_stack+0x45/0xd0 mm/kasan/kasan.c:447
 set_track mm/kasan/kasan.c:459 [inline]
 kasan_kmalloc mm/kasan/kasan.c:551 [inline]
 kasan_kmalloc+0xce/0xf0 mm/kasan/kasan.c:529
 kmem_cache_alloc_trace+0x152/0x790 mm/slab.c:3618
 kmalloc include/linux/slab.h:488 [inline]
 kzalloc include/linux/slab.h:661 [inline]
 tls_init+0xb9/0x530 net/tls/tls_main.c:518
 tcp_set_ulp+0x19c/0x4a7 net/ipv4/tcp_ulp.c:127
 do_tcp_setsockopt.isra.0+0x235/0x1db0 net/ipv4/tcp.c:2521
 tcp_setsockopt+0xb9/0xe0 net/ipv4/tcp.c:2807
 sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:2966
 SYSC_setsockopt net/socket.c:1865 [inline]
 SyS_setsockopt+0x141/0x210 net/socket.c:1844
 do_syscall_64+0x1eb/0x630 arch/x86/entry/common.c:289
 entry_SYSCALL_64_after_hwframe+0x42/0xb7

Freed by task 29799:
 save_stack_trace+0x16/0x20 arch/x86/kernel/stacktrace.c:59
 save_stack+0x45/0xd0 mm/kasan/kasan.c:447
 set_track mm/kasan/kasan.c:459 [inline]
 kasan_slab_free+0x75/0xc0 mm/kasan/kasan.c:524
 __cache_free mm/slab.c:3496 [inline]
 kfree+0xcc/0x270 mm/slab.c:3815
 tls_ctx_free net/tls/tls_main.c:252 [inline]
 tls_ctx_free net/tls/tls_main.c:246 [inline]
 tls_sk_proto_close+0x13d/0x760 net/tls/tls_main.c:290
 inet_release+0xf2/0x1c0 net/ipv4/af_inet.c:425
 inet6_release+0x53/0x80 net/ipv6/af_inet6.c:450
 __sock_release+0xd3/0x2c0 net/socket.c:602
 sock_close+0x1b/0x30 net/socket.c:1139
 __fput+0x277/0x7a0 fs/file_table.c:210
 ____fput+0x16/0x20 fs/file_table.c:244
 task_work_run+0x119/0x190 kernel/task_work.c:113
 get_signal+0x1689/0x1a80 kernel/signal.c:2220
 do_signal+0x86/0x1980 arch/x86/kernel/signal.c:809
 exit_to_usermode_loop+0x15c/0x220 arch/x86/entry/common.c:159
 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:267 [inline]
 do_syscall_64+0x4a9/0x630 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x42/0xb7

The buggy address belongs to the object at ffff8880a0159e00
 which belongs to the cache kmalloc-192 of size 192
The buggy address is located 112 bytes inside of
 192-byte region [ffff8880a0159e00, ffff8880a0159ec0)
The buggy address belongs to the page:
page:ffffea0002805640 count:1 mapcount:0 mapping:ffff8880a0159000 index:0x0
flags: 0x1fffc0000000100(slab)
raw: 01fffc0000000100 ffff8880a0159000 0000000000000000 0000000100000010
raw: ffffea00018b1e20 ffffea00028072e0 ffff8880aa800040 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff8880a0159d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff8880a0159d80: 00 00 00 fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff8880a0159e00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                             ^
 ffff8880a0159e80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
 ffff8880a0159f00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1
protocol 88fb is buggy, dev hsr_slave_0
protocol 88fb is buggy, dev hsr_slave_1