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platform_kernel-5.15
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[PATCH] v9fs: symlink support fixes 

Two symlink fixes, v9fs_readlink didn't copy the last character of the
symlink name, v9fs_vfs_follow_link incorrectly called strlen of newly
allocated buffer instead of PATH_MAX.

Signed-off-by: Latchesar Ionkov <lucho@ionkov.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Latchesar Ionkov 2006-02-03 03:04:17 -08:00 committed by Linus Torvalds
parent 8e75f74428
commit 93c615feff
1 changed files with 3 additions and 3 deletions
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6
fs/9p/vfs_inode.c
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@ -886,8 +886,8 @@ static int v9fs_readlink(struct dentry *dentry, char *buffer, int buflen)
} }
/* copy extension buffer into buffer */ /* copy extension buffer into buffer */
if (fcall->params.rstat.stat.extension.len < buflen) if (fcall->params.rstat.stat.extension.len+1 < buflen)
buflen = fcall->params.rstat.stat.extension.len; buflen = fcall->params.rstat.stat.extension.len + 1;
memcpy(buffer, fcall->params.rstat.stat.extension.str, buflen - 1); memcpy(buffer, fcall->params.rstat.stat.extension.str, buflen - 1);
buffer[buflen-1] = 0; buffer[buflen-1] = 0;
@ -951,7 +951,7 @@ static void *v9fs_vfs_follow_link(struct dentry *dentry, struct nameidata *nd)
if (!link) if (!link)
link = ERR_PTR(-ENOMEM); link = ERR_PTR(-ENOMEM);
else { else {
len = v9fs_readlink(dentry, link, strlen(link)); len = v9fs_readlink(dentry, link, PATH_MAX);
if (len < 0) { if (len < 0) {
__putname(link); __putname(link);