From: Dan Carpenter <error27@gmail.com>
To: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>,
Steve Cornelius <sec@pobox.com>,
Kim Phillips <kim.phillips@freescale.com>,
linux-crypto@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: [patch] crypto: caam - ARRAY_SIZE() vs sizeof()
Date: Tue, 15 Mar 2011 06:59:55 +0000 [thread overview]
Message-ID: <20110315065955.GP2008@bicker> (raw)
ARRAY_SIZE() was intended here instead of sizeof(). sizeof() is four
times larger than ARRAY_SIZE(). outstr is normally 256 chars so
printing garbage to it could overfill the buffer and corrupt memory.
Signed-off-by: Dan Carpenter <error27@gmail.com>
diff --git a/drivers/crypto/caam/error.c b/drivers/crypto/caam/error.c
index bd57a68..7e2d54b 100644
--- a/drivers/crypto/caam/error.c
+++ b/drivers/crypto/caam/error.c
@@ -73,7 +73,7 @@ static void report_ccb_status(u32 status, char *outstr)
report_jump_idx(status, outstr);
- if (cha_id < sizeof(cha_id_list)) {
+ if (cha_id < ARRAY_SIZE(cha_id_list)) {
SPRINTFCAT(outstr, "%s: ", cha_id_list[cha_id],
strlen(cha_id_list[cha_id]));
} else {
@@ -81,7 +81,7 @@ static void report_ccb_status(u32 status, char *outstr)
cha_id, sizeof("ff"));
}
- if (err_id < sizeof(err_id_list)) {
+ if (err_id < ARRAY_SIZE(err_id_list)) {
SPRINTFCAT(outstr, "%s", err_id_list[err_id],
strlen(err_id_list[err_id]));
} else {
@@ -198,11 +198,11 @@ static void report_deco_status(u32 status, char *outstr)
report_jump_idx(status, outstr);
- for (i = 0; i < sizeof(desc_error_list); i++)
+ for (i = 0; i < ARRAY_SIZE(desc_error_list); i++)
if (desc_error_list[i].value = desc_error)
break;
- if (i != sizeof(desc_error_list) && desc_error_list[i].error_text) {
+ if (i != ARRAY_SIZE(desc_error_list) && desc_error_list[i].error_text) {
SPRINTFCAT(outstr, "%s", desc_error_list[i].error_text,
strlen(desc_error_list[i].error_text));
} else {
next reply other threads:[~2011-03-15 6:59 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-15 6:59 Dan Carpenter [this message]
2011-03-15 22:20 ` [patch] crypto: caam - ARRAY_SIZE() vs sizeof() Kim Phillips
2011-03-23 13:22 ` Herbert Xu
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