RDX: ffffffffffffffc1 RSI: 00000000200005c0 RDI: 0000000000000005 RBP: 000000000075bf20 R08: 0000000000000000 R09: 1201000000003618 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f22312f16d4 R13: 00000000004c707f R14: 00000000004dc260 R15: 0000000000000007 ================================================================== BUG: KASAN: out-of-bounds in tls_fill_prepend include/net/tls.h:372 [inline] BUG: KASAN: out-of-bounds in tls_push_record+0x102a/0x13a0 net/tls/tls_sw.c:220 Write of size 1 at addr ffff888058720000 by task syz-executor.0/22818 CPU: 1 PID: 22818 Comm: syz-executor.0 Not tainted 4.19.55 #27 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+0x172/0x1f0 lib/dump_stack.c:113 print_address_description.cold+0x7c/0x20d mm/kasan/report.c:256 kasan_report_error mm/kasan/report.c:354 [inline] kasan_report mm/kasan/report.c:412 [inline] kasan_report.cold+0x8c/0x2ba mm/kasan/report.c:396 __asan_report_store1_noabort+0x17/0x20 mm/kasan/report.c:435 tls_fill_prepend include/net/tls.h:372 [inline] tls_push_record+0x102a/0x13a0 net/tls/tls_sw.c:220 tls_sw_push_pending_record+0x23/0x30 net/tls/tls_sw.c:257 tls_handle_open_record net/tls/tls_main.c:156 [inline] tls_sk_proto_close+0x5bb/0xa20 net/tls/tls_main.c:271 inet_release+0xff/0x1e0 net/ipv4/af_inet.c:428 inet6_release+0x53/0x80 net/ipv6/af_inet6.c:472 __sock_release+0xce/0x2a0 net/socket.c:579 sock_close+0x1b/0x30 net/socket.c:1140 __fput+0x2dd/0x8b0 fs/file_table.c:278 ____fput+0x16/0x20 fs/file_table.c:309 task_work_run+0x145/0x1c0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x273/0x2c0 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+0x53d/0x620 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4592c9 Code: fd b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f22312f0c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: 0000000000004000 RBX: 00007f22312f0c90 RCX: 00000000004592c9 RDX: ffffffffffffffc1 RSI: 00000000200005c0 RDI: 0000000000000005 RBP: 000000000075bf20 R08: 0000000000000000 R09: 1201000000003618 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f22312f16d4 R13: 00000000004c707f R14: 00000000004dc260 R15: 0000000000000007 The buggy address belongs to the page: page:ffffea000161c800 count:2 mapcount:0 mapping:0000000000000000 index:0x0 compound_mapcount: 0 flags: 0x1fffc0000008000(head) raw: 01fffc0000008000 dead000000000100 dead000000000200 0000000000000000 raw: 0000000000000000 0000000000000000 00000002ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff88805871ff00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ffff88805871ff80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >ffff888058720000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ^ ffff888058720080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff888058720100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ==================================================================