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When executing 'fw_run_transaction()' with 'TCODE_WRITE_BLOCK_REQUEST', an address of 'payload' argument is used for streaming DMA mapping by 'firewire_ohci' module if 'size' argument is larger than 8 byte. Although in this case the address should not be on kernel stack, current implementation of ALSA bebob driver uses data in kernel stack for a cue to boot M-Audio devices. This often brings unexpected result, especially for a case of CONFIG_VMAP_STACK=y. This commit fixes the bug. Reference: https://bugzilla.kernel.org/show_bug.cgi?id=201021 Reference: https://forum.manjaro.org/t/firewire-m-audio-410-driver-wont-load-firmware/51165 Fixes: a2b2a7798fb6('ALSA: bebob: Send a cue to load firmware for M-Audio Firewire series') Cc: <stable@vger.kernel.org> # v3.16+ Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de> |
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| .. | ||
| bebob.c | ||
| bebob.h | ||
| bebob_command.c | ||
| bebob_focusrite.c | ||
| bebob_hwdep.c | ||
| bebob_maudio.c | ||
| bebob_midi.c | ||
| bebob_pcm.c | ||
| bebob_proc.c | ||
| bebob_stream.c | ||
| bebob_terratec.c | ||
| bebob_yamaha_terratec.c | ||
| Makefile | ||