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dell_rbu: use scnprintf() instead of less secure sprintf()

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Reading 0 bytes from /sys/devices/platform/dell_rbu/image_type or
/sys/devices/platform/dell_rbu/packet_size by an ordinary user causes an
oops.

Signed-off-by: Pavel Roskin <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Pavel Roskin 2009-01-17 13:33:03 -05:00 • committed by Linus Torvalds
commit 81156928f8
1 changed files with 2 additions and 2 deletions
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4
drivers/firmware/dell_rbu.c
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@ -576,7 +576,7 @@ static ssize_t read_rbu_image_type(struct kobject *kobj,
{
int size = 0;
if (!pos)
size = sprintf(buffer, "%s\n", image_type);
size = scnprintf(buffer, count, "%s\n", image_type);
return size;
}
@ -648,7 +648,7 @@ static ssize_t read_rbu_packet_size(struct kobject *kobj,
int size = 0;
if (!pos) {
spin_lock(&rbu_data.lock);
size = sprintf(buffer, "%lu\n", rbu_data.packetsize);
size = scnprintf(buffer, count, "%lu\n", rbu_data.packetsize);
spin_unlock(&rbu_data.lock);
}
return size;