================================================================== 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 ffff8880b3280cb8 by task syz-executor123/7975 CPU: 0 PID: 7975 Comm: syz-executor123 Not tainted 4.14.288-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 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: 0033:0x7fda5c062e29 RSP: 002b:00007fff1ccf9d08 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00007fda5c0d6270 RCX: 00007fda5c062e29 RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffffffffffc0 R09: 0000000000000000 R10: 0000000000000028 R11: 0000000000000246 R12: 00007fda5c0d6270 R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 Allocated by task 0: (stack is not available) Freed by task 0: (stack is not available) The buggy address belongs to the object at ffff8880b3280440 which belongs to the cache kmalloc-2048 of size 2048 The buggy address is located 120 bytes to the right of 2048-byte region [ffff8880b3280440, ffff8880b3280c40) The buggy address belongs to the page: page:ffffea0002cca000 count:1 mapcount:0 mapping:ffff8880b3280440 index:0x0 compound_mapcount: 0 flags: 0xfff00000008100(slab|head) raw: 00fff00000008100 ffff8880b3280440 0000000000000000 0000000100000003 raw: ffffea00025d0b20 ffff88813fe64948 ffff88813fe74c40 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff8880b3280b80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8880b3280c00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff8880b3280c80: fc fc fc fc fc fc fc fc 00 00 00 00 00 00 00 00 ^ ffff8880b3280d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff8880b3280d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ==================================================================