Not allocated shadow for addr ffff88015a158005 (page ffffea00081c8100) 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: 0 PID: 18624 Comm: syz-executor1 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:ffff880159ddf320 EFLAGS: 00010082 RAX: 000000000000001b RBX: 0000000000000560 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000000000000000 RBP: ffff880159ddf338 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000000 R11: ffffffff86575950 R12: ffff8800bbaac164 R13: ffff88016991ba80 R14: 0000000000000001 R15: 0000000000000008 FS: 00007f0a98f69700(0000) GS:ffff88021fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f192aff6330 CR3: 000000000ac30000 CR4: 00000000001406f0 DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 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_push_pending_record+0x6e/0x80 net/tls/tls_sw.c:276 tls_push_pending_closed_record net/tls/tls_main.c:211 [inline] tls_complete_pending_work include/net/tls.h:217 [inline] tls_sk_proto_close+0x60e/0xcd0 net/tls/tls_main.c:262 inet_release+0x249/0x2b0 net/ipv4/af_inet.c:427 inet6_release+0xaf/0x100 net/ipv6/af_inet6.c:460 sock_release net/socket.c:594 [inline] sock_close+0xeb/0x310 net/socket.c:1149 __fput+0x458/0xa30 fs/file_table.c:209 ____fput+0x37/0x40 fs/file_table.c:243 task_work_run+0x22e/0x2b0 kernel/task_work.c:113 exit_task_work include/linux/task_work.h:22 [inline] do_exit+0x110e/0x3930 kernel/exit.c:867 do_group_exit+0x1a0/0x360 kernel/exit.c:970 get_signal+0x1405/0x1ec0 kernel/signal.c:2482 do_signal+0xb8/0x1d20 arch/x86/kernel/signal.c:810 exit_to_usermode_loop arch/x86/entry/common.c:162 [inline] prepare_exit_to_usermode+0x271/0x3a0 arch/x86/entry/common.c:196 syscall_return_slowpath+0xe9/0x710 arch/x86/entry/common.c:265 do_syscall_64+0x1ad/0x230 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x455b29 RSP: 002b:00007f0a98f68ce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 000000000072bec8 RCX: 0000000000455b29 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000072bec8 RBP: 000000000072bec8 R08: 0000000000000037 R09: 000000000072bea0 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000a3e81f R14: 00007f0a98f699c0 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: ffff880159ddf320 ---[ end trace 302183c7c6d9d586 ]---