Files
linux-bredos/sound/usb
Dan Carpenter 44a7b0419d ALSA: usb-audio: Fix a DMA to stack memory bug
commit f7d306b47a upstream.

The usb_get_descriptor() function does DMA so we're not allowed
to use a stack buffer for that.  Doing DMA to the stack is not portable
all architectures.  Move the "new_device_descriptor" from being stored
on the stack and allocate it with kmalloc() instead.

Fixes: b909df18ce ("ALSA: usb-audio: Fix potential out-of-bound accesses for Extigy and Mbox devices")
Cc: stable@kernel.org
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://patch.msgid.link/60e3aa09-039d-46d2-934c-6f123026c2eb@stanley.mountain
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Benoît Sevens <bsevens@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-12-19 18:11:37 +01:00
..
2023-08-17 09:23:45 +02:00
2021-12-06 10:19:40 +01:00