Re: [PATCH] Bluetooth: increase BTNAMSIZ to 21 chars to fix potential buffer overflow

[Marcel Holtmann]

Hi Colin,

> An earlier commit replaced using batostr to using %pMR sprintf for the
> construction of session->name. Static analysis detected that this new
> method can use a total of 21 characters (including the trailing '\0')
> so we need to increase the BTNAMSIZ from 18 to 21 to fix potential
> buffer overflows.
> 
> Addresses-Coverity: ("Out-of-bounds write")
> Fixes: fcb73338ed53 ("Bluetooth: Use %pMR in sprintf/seq_printf instead of batostr")
> Signed-off-by: Colin Ian King <colin.king@xxxxxxxxxxxxx>
> ---
> net/bluetooth/cmtp/cmtp.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)

patch has been applied to bluetooth-next tree.

Regards

Marcel