==================================================================
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 ffff888047a68c38 by task syz-executor.5/8482

CPU: 0 PID: 8482 Comm: syz-executor.5 Not tainted 4.14.232-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
overlayfs: missing 'lowerdir'
 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
tmpfs: No value for mount option '00000000000000060928'
 tls_handle_open_record net/tls/tls_main.c:158 [inline]
 tls_sk_proto_close+0x6f0/0x8b0 net/tls/tls_main.c:270
overlayfs: fs on './file0' does not support file handles, falling back to index=off.
 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
tmpfs: No value for mount option '00000000000000060928'
 tracehook_notify_resume include/linux/tracehook.h:191 [inline]
 exit_to_usermode_loop+0x1ad/0x200 arch/x86/entry/common.c:164
 prepare_exit_to_usermode arch/x86/entry/common.c:199 [inline]
 syscall_return_slowpath arch/x86/entry/common.c:270 [inline]
 do_syscall_64+0x4a3/0x640 arch/x86/entry/common.c:297
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x41940b
RSP: 002b:00007ffcc40b1910 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 000000000041940b
RDX: 0000000000000000 RSI: 0000001b2e225d58 RDI: 0000000000000003
RBP: 0000000000000001 R08: 0000000000000000 R09: 000000000000033a
R10: 0000000078e0233d R11: 0000000000000293 R12: 000000000056c9e0
R13: 000000000056c9e0 R14: 000000000056bf60 R15: 00000000000b0316

Allocated by task 7031:
 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
 __do_kmalloc mm/slab.c:3720 [inline]
 __kmalloc+0x15a/0x400 mm/slab.c:3729
 kmalloc include/linux/slab.h:493 [inline]
 sk_prot_alloc+0x1ba/0x290 net/core/sock.c:1467
 sk_alloc+0x36/0xcd0 net/core/sock.c:1521
 __netlink_create+0x63/0x270 net/netlink/af_netlink.c:611
 netlink_create+0x270/0x510 net/netlink/af_netlink.c:674
 __sock_create+0x303/0x620 net/socket.c:1275
 sock_create net/socket.c:1315 [inline]
 SYSC_socket net/socket.c:1345 [inline]
 SyS_socket+0xd1/0x1b0 net/socket.c:1325
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
overlayfs: failed to resolve './fil': -2
 entry_SYSCALL_64_after_hwframe+0x46/0xbb

Freed by task 7960:
 save_stack mm/kasan/kasan.c:447 [inline]
 set_track mm/kasan/kasan.c:459 [inline]
 kasan_slab_free+0xc3/0x1a0 mm/kasan/kasan.c:524
 __cache_free mm/slab.c:3496 [inline]
 kfree+0xc9/0x250 mm/slab.c:3815
 skb_free_head net/core/skbuff.c:563 [inline]
 skb_release_data+0x5f6/0x820 net/core/skbuff.c:583
tmpfs: No value for mount option '00000000000000060928'
 skb_release_all net/core/skbuff.c:640 [inline]
 __kfree_skb+0x46/0x60 net/core/skbuff.c:654
 sk_wmem_free_skb include/net/sock.h:1425 [inline]
 tcp_clean_rtx_queue net/ipv4/tcp_input.c:3187 [inline]
 tcp_ack+0x187b/0x4580 net/ipv4/tcp_input.c:3687
 tcp_rcv_established+0xebb/0x1810 net/ipv4/tcp_input.c:5501
 tcp_v4_do_rcv+0x541/0x7d0 net/ipv4/tcp_ipv4.c:1476
 sk_backlog_rcv include/net/sock.h:921 [inline]
 __release_sock+0x12a/0x350 net/core/sock.c:2269
 release_sock+0x54/0x1b0 net/core/sock.c:2805
 tcp_sendmsg+0x36/0x40 net/ipv4/tcp.c:1458
 inet_sendmsg+0x11a/0x4e0 net/ipv4/af_inet.c:762
 sock_sendmsg_nosec net/socket.c:646 [inline]
 sock_sendmsg+0xb5/0x100 net/socket.c:656
 sock_write_iter+0x22c/0x370 net/socket.c:925
 call_write_iter include/linux/fs.h:1778 [inline]
 new_sync_write fs/read_write.c:469 [inline]
 __vfs_write+0x44c/0x630 fs/read_write.c:482
 vfs_write+0x17f/0x4d0 fs/read_write.c:544
 SYSC_write fs/read_write.c:590 [inline]
 SyS_write+0xf2/0x210 fs/read_write.c:582
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb

The buggy address belongs to the object at ffff888047a683c0
 which belongs to the cache kmalloc-2048 of size 2048
The buggy address is located 120 bytes to the right of
 2048-byte region [ffff888047a683c0, ffff888047a68bc0)
The buggy address belongs to the page:
page:ffffea00011e9a00 count:1 mapcount:0 mapping:ffff888047a683c0 index:0x0 compound_mapcount: 0
flags: 0xfff00000008100(slab|head)
raw: 00fff00000008100 ffff888047a683c0 0000000000000000 0000000100000003
raw: ffffea0002476220 ffffea000282f020 ffff88813fe80c40 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff888047a68b00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff888047a68b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff888047a68c00: fc fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00
                                        ^
 ffff888047a68c80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff888047a68d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
==================================================================
overlayfs: missing 'lowerdir'
overlayfs: failed to resolve './fil': -2
tmpfs: No value for mount option '00000000000000060928'
overlayfs: fs on './file0' does not support file handles, falling back to index=off.
tmpfs: No value for mount option '00000000000000060928'