From: Brian Norris <computersforpeace@gmail.com>
To: <linux-mtd@lists.infradead.org>
Cc: Brian Norris <computersforpeace@gmail.com>
Subject: [PATCH] mtd: mtdswap: fix integer overflow
Date: Mon, 21 Jul 2014 19:07:02 -0700 [thread overview]
Message-ID: <1405994822-19376-1-git-send-email-computersforpeace@gmail.com> (raw)
Caught by Coverity.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
drivers/mtd/mtdswap.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mtd/mtdswap.c b/drivers/mtd/mtdswap.c
index 8b33b26eb12b..8ca8d41bb35e 100644
--- a/drivers/mtd/mtdswap.c
+++ b/drivers/mtd/mtdswap.c
@@ -1474,7 +1474,7 @@ static void mtdswap_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd)
}
eblocks = mtd_div_by_eb(use_size, mtd);
- use_size = eblocks * mtd->erasesize;
+ use_size = (uint64_t)eblocks * mtd->erasesize;
bad_blocks = mtdswap_badblocks(mtd, use_size);
eavailable = eblocks - bad_blocks;
--
1.9.1
reply other threads:[~2014-07-22 2:07 UTC|newest]
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