Johan Hovold 536de747bc comedi: dt9812: fix DMA buffers on stack ... USB transfer buffers are typically mapped for DMA and must not be allocated on the stack or transfers will fail. Allocate proper transfer buffers in the various command helpers and return an error on short transfers instead of acting on random stack data. Note that this also fixes a stack info leak on systems where DMA is not used as 32 bytes are always sent to the device regardless of how short the command is. Fixes: 63274cd7d3 ("Staging: comedi: add usb dt9812 driver") Cc: stable@vger.kernel.org # 2.6.29 Reviewed-by: Ian Abbott <abbotti@mev.co.uk> Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20211027093529.30896-3-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2021-10-30 10:54:47 +02:00
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drivers	comedi: dt9812: fix DMA buffers on stack	2021-10-30 10:54:47 +02:00
kcomedilib
comedi_buf.c
comedi_fops.c	comedi: Fix memory leak in compat_insnlist()	2021-09-21 17:53:54 +02:00
comedi_internal.h
comedi_pci.c
comedi_pci.h
comedi_pcmcia.c
comedi_pcmcia.h
comedi_usb.c
comedi_usb.h
comedi.h
comedidev.h
comedilib.h
drivers.c
Kconfig
Makefile
proc.c
range.c
TODO