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BUG: KASAN: slab-out-of-bounds in sg_mark_end include/linux/scatterlist.h:190 [inline]
BUG: KASAN: slab-out-of-bounds in tls_push_record+0x10cc/0x1270 net/tls/tls_sw.c:255
Read of size 8 at addr ffff88809633c578 by task syz-executor227/7985

CPU: 0 PID: 7985 Comm: syz-executor227 Not tainted 4.14.273-syzkaller #0
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+0x1b2/0x281 lib/dump_stack.c:58
 print_address_description.cold+0x54/0x1d3 mm/kasan/report.c:252
 kasan_report_error.cold+0x8a/0x191 mm/kasan/report.c:351
 kasan_report mm/kasan/report.c:409 [inline]
 __asan_report_load8_noabort+0x68/0x70 mm/kasan/report.c:430
 sg_mark_end include/linux/scatterlist.h:190 [inline]
 tls_push_record+0x10cc/0x1270 net/tls/tls_sw.c:255
 tls_handle_open_record net/tls/tls_main.c:158 [inline]
 tls_sk_proto_close+0x6f0/0x8b0 net/tls/tls_main.c:270
 inet_release+0xdf/0x1b0 net/ipv4/af_inet.c:425
 inet6_release+0x4c/0x70 net/ipv6/af_inet6.c:450
 __sock_release+0xcd/0x2b0 net/socket.c:602
 sock_close+0x15/0x20 net/socket.c:1139
 __fput+0x25f/0x7a0 fs/file_table.c:210
 task_work_run+0x11f/0x190 kernel/task_work.c:113
 exit_task_work include/linux/task_work.h:22 [inline]
 do_exit+0xa44/0x2850 kernel/exit.c:868
 do_group_exit+0x100/0x2e0 kernel/exit.c:965
 SYSC_exit_group kernel/exit.c:976 [inline]
 SyS_exit_group+0x19/0x20 kernel/exit.c:974
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7f86d6084e29
RSP: 002b:00007ffd9d5bad48 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f86d60f8270 RCX: 00007f86d6084e29
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffffffffffc0 R09: 0000000000000000
R10: 0000000000000028 R11: 0000000000000246 R12: 00007f86d60f8270
R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001

Allocated by task 7985:
 save_stack mm/kasan/kasan.c:447 [inline]
 set_track mm/kasan/kasan.c:459 [inline]
 kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:551
 kmem_cache_alloc_trace+0x131/0x3d0 mm/slab.c:3618
 kmalloc include/linux/slab.h:488 [inline]
 kzalloc include/linux/slab.h:661 [inline]
 tls_set_sw_offload+0x88/0xcd0 net/tls/tls_sw.c:683
 do_tls_setsockopt_tx net/tls/tls_main.c:443 [inline]
 do_tls_setsockopt net/tls/tls_main.c:468 [inline]
 tls_setsockopt+0x216/0x3f0 net/tls/tls_main.c:486
 SYSC_setsockopt net/socket.c:1865 [inline]
 SyS_setsockopt+0x110/0x1e0 net/socket.c:1844
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb

Freed by task 0:
(stack is not available)

The buggy address belongs to the object at ffff88809633c580
 which belongs to the cache kmalloc-2048 of size 2048
The buggy address is located 8 bytes to the left of
 2048-byte region [ffff88809633c580, ffff88809633cd80)
The buggy address belongs to the page:
page:ffffea000258cf00 count:1 mapcount:0 mapping:ffff88809633c580 index:0x0 compound_mapcount: 0
flags: 0xfff00000008100(slab|head)
raw: 00fff00000008100 ffff88809633c580 0000000000000000 0000000100000003
raw: ffffea0002586f20 ffffea00025651a0 ffff88813fe74c40 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff88809633c400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88809633c480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88809633c500: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                                                                ^
 ffff88809633c580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff88809633c600: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
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