==================================================================
BUG: KASAN: use-after-free in tls_fill_prepend include/net/tls.h:379 [inline]
BUG: KASAN: use-after-free in tls_push_record+0x104c/0x1370 net/tls/tls_sw.c:220
Write of size 1 at addr ffff888097298d5e by task syz-executor.3/3441

CPU: 0 PID: 3441 Comm: syz-executor.3 Not tainted 4.19.211-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_store1_noabort+0x88/0x90 mm/kasan/report.c:435
 tls_fill_prepend include/net/tls.h:379 [inline]
 tls_push_record+0x104c/0x1370 net/tls/tls_sw.c:220
 tls_handle_open_record net/tls/tls_main.c:156 [inline]
 tls_sk_proto_close+0x8cf/0xc20 net/tls/tls_main.c:271
 inet_release+0xd7/0x1e0 net/ipv4/af_inet.c:427
 inet6_release+0x4c/0x70 net/ipv6/af_inet6.c:472
 __sock_release+0xcd/0x2a0 net/socket.c:599
 sock_close+0x15/0x20 net/socket.c:1214
 __fput+0x2ce/0x890 fs/file_table.c:278
 task_work_run+0x148/0x1c0 kernel/task_work.c:113
 tracehook_notify_resume include/linux/tracehook.h:193 [inline]
 exit_to_usermode_loop+0x251/0x2a0 arch/x86/entry/common.c:167
 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
 do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f714b17bc2b
Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44
RSP: 002b:00007fffd58da260 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000006 RCX: 00007f714b17bc2b
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000005
RBP: 00007f714b2dd960 R08: 0000000000000000 R09: 00007f714b2e2b80
R10: 0000000000000000 R11: 0000000000000293 R12: 00000000000791b1
R13: 00007fffd58da360 R14: 00007fffd58da380 R15: 0000000000000032

The buggy address belongs to the page:
page:ffffea00025ca600 count:0 mapcount:-128 mapping:0000000000000000 index:0x0
flags: 0xfff00000000000()
raw: 00fff00000000000 ffffea0002a41208 ffffea0002547e08 0000000000000000
raw: 0000000000000000 0000000000000003 00000000ffffff7f 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff888097298c00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff888097298c80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff888097298d00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                                                    ^
 ffff888097298d80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff888097298e00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
==================================================================
IPVS: sync thread started: state = MASTER, mcast_ifn = vlan0, syncid = 0, id = 0
IPVS: stopping master sync thread 3467 ...
IPVS: sync thread started: state = MASTER, mcast_ifn = vlan0, syncid = 0, id = 0
IPVS: stopping master sync thread 3471 ...