leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

exportfs: don't assume that ->iterate() won't feed us too long entries

Browse Source 
On some filesystems it's impossible even with fs corruption, but we'd
better not rely on that, what with memcpy() into on-stack array we
are doing there.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2013-09-06 16:55:36 -04:00
parent 5d8943b04b
commit dfc59e2c90
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
fs/exportfs/expfs.c
View File

@ -231,7 +231,7 @@ static int filldir_one(void * __buf, const char * name, int len,
int result = 0; int result = 0;
buf->sequence++; buf->sequence++;
if (buf->ino == ino) { if (buf->ino == ino && len <= NAME_MAX) {
memcpy(buf->name, name, len); memcpy(buf->name, name, len);
buf->name[len] = '\0'; buf->name[len] = '\0';
buf->found = 1; buf->found = 1;