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| author | Johan Hovold <johan@kernel.org> | 2021-10-26 11:54:01 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2021-10-27 08:23:30 +0200 |
| commit | 55f261b73a7e1cb254577c3536cef8f415de220a (patch) | |
| tree | a34e6d33b87180964bcc7975539a4e6a79e9defd /crypto/cryptd.c | |
| parent | f4000b58b64344871d7b27c05e73932f137cfef6 (diff) | |
| download | linux-next-55f261b73a7e1cb254577c3536cef8f415de220a.tar.gz | |
ALSA: ua101: fix division by zero at probe
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>
Link: https://lore.kernel.org/r/20211026095401.26522-1-johan@kernel.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'crypto/cryptd.c')
0 files changed, 0 insertions, 0 deletions