[PATCH] Memory corruption in block2mtd.c

[Ingo van Lil]

Hello everybody,

the block2mtd driver (drivers/mtd/devices/block2mtd.c) will kfree an
on-stack pointer when handling an invalid argument line (e.g.
block2mtd=/dev/loop0,xxx).

The kfree was added some time ago when "name" was dynamically
allocated.

Cheers,
Ingo

Signed-off-by: Ingo van Lil <inguin@xxxxxx>
---

--- linux-2.6.23.1/drivers/mtd/devices/block2mtd.c.orig	2008-03-20 15:13:49.000000000 +0100
+++ linux-2.6.23.1/drivers/mtd/devices/block2mtd.c	2008-03-20 15:14:09.000000000 +0100
@@ -408,7 +408,6 @@
 	if (token[1]) {
 		ret = parse_num(&erase_size, token[1]);
 		if (ret) {
-			kfree(name);
 			parse_err("illegal erase size");
 		}
 	}
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