From: yury <yury>
Date: Thu, 22 Jun 2006 11:48:45 +0000 (+0000)
Subject: - added few sanity check to seq_proc_write_range()
X-Git-Tag: v1_8_0_110~486^2~1577
X-Git-Url: https://git.whamcloud.com/gitweb?a=commitdiff_plain;h=7ec7b52f8d730ba6bd934698204c30c0b3927e9e;p=fs%2Flustre-release.git

- added few sanity check to seq_proc_write_range()
---

diff --git a/lustre/fid/lproc_fid.c b/lustre/fid/lproc_fid.c
index 141be0a..e0691d8 100644
--- a/lustre/fid/lproc_fid.c
+++ b/lustre/fid/lproc_fid.c
@@ -62,6 +62,13 @@ seq_proc_write_range(struct file *file, const char *buffer,
         rc = sscanf(buffer, "["LPU64"-"LPU64"]\n",
 		    &tmp.lr_start, &tmp.lr_end);
 
+	/* did not match 2 values */
+	if (rc != 2 || !range_is_sane(&tmp) || range_is_zero(&tmp)) {
+		CERROR("can't parse input string or "
+		       "input is not correct\n");
+		RETURN(count);
+	}
+
 	*range = tmp;
         RETURN(count);
 }