[patch] Staging: bcm: copying more data than intended

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



This was changed to bcm_flash2x_cs_info instead of bcm_flash_cs_info
when we got rid of the typedefs.  bcm_flash2x_cs_info is quite a bit
larger than bcm_flash_cs_info (436 bytes instead of 96) so it would
corrupt user memory and it's an info leak.

Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
---
Only needed in linux-next.  I'm not sure how I missed this when the
patch was originally submitted.  I reviewed the patchset.

diff --git a/drivers/staging/bcm/Bcmchar.c b/drivers/staging/bcm/Bcmchar.c
index 4ba1a5d..491e2bf 100644
--- a/drivers/staging/bcm/Bcmchar.c
+++ b/drivers/staging/bcm/Bcmchar.c
@@ -1792,7 +1792,7 @@ cntrlEnd:
 			if (IoBuffer.OutputLength < sizeof(struct bcm_flash_cs_info))
 				return -EINVAL;
 
-			if (copy_to_user(IoBuffer.OutputBuffer, Adapter->psFlashCSInfo, sizeof(struct bcm_flash2x_cs_info)))
+			if (copy_to_user(IoBuffer.OutputBuffer, Adapter->psFlashCSInfo, sizeof(struct bcm_flash_cs_info)))
 				return -EFAULT;
 		}
 	}
_______________________________________________
devel mailing list
devel@xxxxxxxxxxxxxxxxxxxxxx
http://driverdev.linuxdriverproject.org/mailman/listinfo/devel


[Index of Archives]     [Linux Driver Backports]     [DMA Engine]     [Linux GPIO]     [Linux SPI]     [Video for Linux]     [Linux USB Devel]     [Linux Coverity]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [Yosemite Backpacking]
  Powered by Linux