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mtd: terminate user-provided string

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Noticed by Coverity as a potential security issue.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
This commit is contained in:
Brian Norris 2014-07-21 19:08:13 -07:00
parent 537ab1bd47
commit 1cc8d84133
1 changed files with 3 additions and 0 deletions
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3
drivers/mtd/mtdchar.c
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@ -549,6 +549,9 @@ static int mtdchar_blkpg_ioctl(struct mtd_info *mtd,
if (mtd_is_partition(mtd))
return -EINVAL;
/* Sanitize user input */
p.devname[BLKPG_DEVNAMELTH - 1] = '\0';
return mtd_add_partition(mtd, p.devname, p.start, p.length);
case BLKPG_DEL_PARTITION: