We do:
if (NOB > DEFAULT_BUFF_SIZE)
BuffSize = DEFAULT_BUFF_SIZE;
else
BuffSize = NOB;
Since NOB can be negative it results in a larger than intended BuffSize
and makes kzalloc() fail.
The code is still a bit crap because it lets the users read as much as
they want from nvram, but I don't know what a sensible upper limit
should be.
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>
diff --git a/drivers/staging/bcm/Bcmchar.c b/drivers/staging/bcm/Bcmchar.c
index 6f1997dc44c8..5e4dfe031040 100644
--- a/drivers/staging/bcm/Bcmchar.c
+++ b/drivers/staging/bcm/Bcmchar.c
@@ -1894,7 +1894,7 @@ static int bcm_char_ioctl_nvm_raw_read(void __user *argp,
struct bcm_mini_adapte
{
struct bcm_nvm_readwrite stNVMRead;
struct bcm_ioctl_buffer IoBuffer;
- INT NOB;
+ unsigned int NOB;
INT BuffSize;
INT ReadOffset = 0;
UINT ReadBytes = 0;
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