diff options
author | Johan Hovold | 2021-10-25 13:39:44 +0200 |
---|---|---|
committer | Marcel Holtmann | 2021-10-25 15:04:46 +0200 |
commit | b5e6fa7a12572c82f1e7f2f51fbb02a322291291 (patch) | |
tree | b39ea983b2b7fae7681d31d417373b27d416cc78 /tools/arch/x86 | |
parent | 2a7ca7459d905febf519163bd9e3eed894de6bb7 (diff) |
Bluetooth: bfusb: fix division by zero in send path
Add the missing bulk-out endpoint sanity check to probe() to avoid
division by zero in bfusb_send_frame() 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")).
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'tools/arch/x86')
0 files changed, 0 insertions, 0 deletions