Messages in this thread | | | Date | Wed, 27 Oct 2021 08:23:56 +0200 | From | Takashi Iwai <> | Subject | Re: [PATCH] sound: ua101: fix division by zero at probe |
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On Tue, 26 Oct 2021 11:54:01 +0200, Johan Hovold wrote: > > Add the missing endpoint max-packet sanity check to probe() to avoid > division by zero in alloc_stream_buffers() 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: 63978ab3e3e9 ("sound: add Edirol UA-101 support") > Cc: stable@vger.kernel.org # 2.6.34 > Signed-off-by: Johan Hovold <johan@kernel.org>
Thanks, applied.
Takashi
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