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BUG: KMSAN: uninit-value in __unix_find_socket_byname net/unix/af_unix.c:280 [inline]
BUG: KMSAN: uninit-value in unix_find_socket_byname net/unix/af_unix.c:303 [inline]
BUG: KMSAN: uninit-value in unix_find_other+0x315/0xc60 net/unix/af_unix.c:932
CPU: 1 PID: 14903 Comm: syz-executor0 Not tainted 4.17.0+ #22
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+0x185/0x1d0 lib/dump_stack.c:113
 kmsan_report+0x188/0x2a0 mm/kmsan/kmsan.c:990
 __msan_warning_32+0x70/0xc0 mm/kmsan/kmsan_instr.c:640
 __unix_find_socket_byname net/unix/af_unix.c:280 [inline]
 unix_find_socket_byname net/unix/af_unix.c:303 [inline]
 unix_find_other+0x315/0xc60 net/unix/af_unix.c:932
 unix_stream_connect+0x84e/0x26b0 net/unix/af_unix.c:1241
 p9_fd_create_unix+0x36b/0x5f0 net/9p/trans_fd.c:1019
 p9_client_create+0x1333/0x20e0 net/9p/client.c:1065
 v9fs_session_init+0x313/0x2830 fs/9p/v9fs.c:405
 v9fs_mount+0x107/0x11b0 fs/9p/vfs_super.c:135
 mount_fs+0x29b/0x780 fs/super.c:1277
 vfs_kern_mount+0x222/0x990 fs/namespace.c:1037
 do_new_mount fs/namespace.c:2518 [inline]
 do_mount+0xca5/0x4ed0 fs/namespace.c:2848
 ksys_mount+0x32e/0x3d0 fs/namespace.c:3064
 __do_sys_mount fs/namespace.c:3078 [inline]
 __se_sys_mount fs/namespace.c:3075 [inline]
 __x64_sys_mount+0x157/0x1c0 fs/namespace.c:3075
 do_syscall_64+0x15b/0x230 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x63/0xe7
RIP: 0033:0x455e29
RSP: 002b:00007f2a36948c68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f2a369496d4 RCX: 0000000000455e29
RDX: 00000000200000c0 RSI: 0000000020000040 RDI: 0000000020000000
RBP: 000000000072bea0 R08: 0000000020000100 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000004c05f1 R14: 00000000004d00b8 R15: 0000000000000000

Local variable description: ----sun_server@p9_fd_create_unix
Variable was created at:
 p9_fd_create_unix+0x7a/0x5f0 net/9p/trans_fd.c:996
 p9_client_create+0x1333/0x20e0 net/9p/client.c:1065
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