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patch "iio: accel: sca3000: memory corruption in" added to staging-linus

PATCH [email protected] 1 participant 1 message Oct 17, 2015

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This is a note to let you know that I've just added the patch titled

iio: accel: sca3000: memory corruption in

to my staging git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git
in the staging-linus branch.

The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)

The patch will hopefully also be merged in Linus's tree for the next -rc kernel release.

If you have any questions about this process, please let me know.

Quoted 1 line

From eda7d0f38aaf50dbb2a2de15e8db386c4f6f65fc Mon Sep 17 00:00:00 2001

From: Dan Carpenter <[email protected]>
Date: Sat, 8 Aug 2015 22:16:42 +0300
Subject: iio: accel: sca3000: memory corruption in
sca3000_read_first_n_hw_rb()

"num_read" is in byte units but we are write u16s so we end up write twice as much as intended.

---
 drivers/staging/iio/accel/sca3000_ring.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
drivers/staging/iio/accel/sca3000_ring.c +1 -1
index 23685e74917e..bd2c69f85949 100644
@@ -116,7 +116,7 @@ static int sca3000_read_first_n_hw_rb(struct iio_buffer *r,
 	if (ret)
 		goto error_ret;
 
-	for (i = 0; i < num_read; i++)
+	for (i = 0; i < num_read / sizeof(u16); i++)
 		*(((u16 *)rx) + i) = be16_to_cpup((__be16 *)rx + i);
 
 	if (copy_to_user(buf, rx, num_read))
Signature · 1 line
2.6.1