R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000004 R13: ffffffffffffffff R14: 0000000000000000 R15: 0000000000000000 Not allocated shadow for addr ffff880195679005 (page ffffea0009806d60) Attempted to access 8 bytes ------------[ cut here ]------------ kernel BUG at mm/kmsan/kmsan.c:1386! invalid opcode: 0000 [#1] SMP PTI Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 1 PID: 4461 Comm: syz-executor009 Not tainted 4.17.0+ #9 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:kmsan_get_shadow_address+0x1ce/0x1f0 mm/kmsan/kmsan.c:1385 RSP: 0018:ffff8801953af868 EFLAGS: 00010086 RAX: 000000000000001b RBX: 0000000000000640 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000000 RBP: ffff8801953af880 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000000 R11: ffffffff86575950 R12: ffff8801cc105f74 R13: ffff88019573d7c0 R14: 0000000000000001 R15: 0000000000000008 FS: 0000000002480880(0000) GS:ffff88021fd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f50a0adf000 CR3: 0000000196892000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __msan_memcpy+0xaf/0x160 mm/kmsan/kmsan_instr.c:403 tls_fill_prepend include/net/tls.h:278 [inline] tls_push_record+0x761/0x1f10 net/tls/tls_sw.c:240 tls_sw_sendmsg+0x19d3/0x20e0 net/tls/tls_sw.c:484 inet_sendmsg+0x3fc/0x760 net/ipv4/af_inet.c:798 sock_sendmsg_nosec net/socket.c:629 [inline] sock_sendmsg net/socket.c:639 [inline] __sys_sendto+0x6c4/0x7e0 net/socket.c:1789 __do_sys_sendto net/socket.c:1801 [inline] __se_sys_sendto net/socket.c:1797 [inline] __x64_sys_sendto+0x1a1/0x210 net/socket.c:1797 do_syscall_64+0x15b/0x230 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x440979 RSP: 002b:00007ffd2ad86d88 EFLAGS: 00000212 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000440979 RDX: 00000000fffffdef RSI: 00000000200005c0 RDI: 0000000000000003 RBP: 00000000006cc018 R08: 0000000020000000 R09: 000000000000001c R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000004 R13: ffffffffffffffff R14: 0000000000000000 R15: 0000000000000000 Code: 75 29 48 c7 c7 1d 39 97 8a 31 c0 e8 2d 4c 80 ff 80 3c 25 f8 93 53 8b 00 75 11 48 c7 c7 4d 39 97 8a 31 c0 4c 89 fe e8 12 4c 80 ff <0f> 0b eb fe 48 3d ff ff ff 1f 0f 87 a2 fe ff ff 48 8b 1c 25 10 RIP: kmsan_get_shadow_address+0x1ce/0x1f0 mm/kmsan/kmsan.c:1385 RSP: ffff8801953af868 ---[ end trace 782d2001cbd24a42 ]---