Johan Hovold johan@kernel.org wrote:
Add the missing endpoint max-packet sanity check to probe() to avoid division by zero in ath10k_usb_hif_tx_sg() in case a malicious device has broken descriptors (or when doing descriptor fuzz testing).
Note that USB core will reject URBs submitted for endpoints with zero wMaxPacketSize but that drivers doing packet-size calculations still need to handle this (cf. commit 2548288b4fb0 ("USB: Fix: Don't skip endpoint descriptors with maxpacket=0")).
Fixes: 4db66499df91 ("ath10k: add initial USB support") Cc: stable@vger.kernel.org # 4.14 Cc: Erik Stromdahl erik.stromdahl@gmail.com Signed-off-by: Johan Hovold johan@kernel.org Signed-off-by: Kalle Valo kvalo@codeaurora.org
2 patches applied to ath-next branch of ath.git, thanks.
a006acb93131 ath10k: fix division by zero in send path c1b9ca365dea ath6kl: fix division by zero in send path