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libertas: Read outside array bounds

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reads bss->rates[j] before checking bounds of index, and should use
ARRAY_SIZE to determine the size of the array.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Roel Kluin 2009-07-28 09:59:47 +02:00 committed by John W. Linville
parent 78f1a8b758
commit 430453fc2a
1 changed files with 2 additions and 1 deletions
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3
drivers/net/wireless/libertas/scan.c
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@ -5,6 +5,7 @@
* for sending scan commands to the firmware.
*/
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/etherdevice.h>
#include <linux/if_arp.h>
#include <asm/unaligned.h>
@ -876,7 +877,7 @@ static inline char *lbs_translate_scan(struct lbs_private *priv,
iwe.u.bitrate.disabled = 0;
iwe.u.bitrate.value = 0;
for (j = 0; bss->rates[j] && (j < sizeof(bss->rates)); j++) {
for (j = 0; j < ARRAY_SIZE(bss->rates) && bss->rates[j]; j++) {
/* Bit rate given in 500 kb/s units */
iwe.u.bitrate.value = bss->rates[j] * 500000;
current_val = iwe_stream_add_value(info, start, current_val,