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JFFS2: Return an error for long filenames
author
Richard Purdie
<rpurdie@rpsys.net>
Tue, 18 Apr 2006 01:05:46 +0000
(
02:05
+0100)
committer
Richard Purdie
<richard@tim.rpsys.net>
Tue, 18 Apr 2006 01:05:46 +0000
(
02:05
+0100)
Return an error if a name is too long for JFFS2 rather than
corrupting data.
Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
fs/jffs2/dir.c
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diff --git
a/fs/jffs2/dir.c
b/fs/jffs2/dir.c
index
8bc7a50
..
f92840a
100644
(file)
--- a/
fs/jffs2/dir.c
+++ b/
fs/jffs2/dir.c
@@
-78,6
+78,9
@@
static struct dentry *jffs2_lookup(struct inode *dir_i, struct dentry *target,
D1(printk(KERN_DEBUG "jffs2_lookup()\n"));
+ if (target->d_name.len > JFFS2_MAX_NAME_LEN)
+ return ERR_PTR(-ENAMETOOLONG);
+
dir_f = JFFS2_INODE_INFO(dir_i);
c = JFFS2_SB_INFO(dir_i->i_sb);