Takashi Iwai 4faf4bbc2d ALSA: memalloc: Align buffer allocations in page size ... commit 5c1733e33c upstream. Currently the standard memory allocator (snd_dma_malloc_pages*()) passes the byte size to allocate as is. Most of the backends allocates real pages, hence the actual allocations are aligned in page size. However, the genalloc doesn't seem assuring the size alignment, hence it may result in the access outside the buffer when the whole memory pages are exposed via mmap. For avoiding such inconsistencies, this patch makes the allocation size always to be aligned in page size. Note that, after this change, snd_dma_buffer.bytes field contains the aligned size, not the originally requested size. This value is also used for releasing the pages in return. Reviewed-by: Lars-Peter Clausen <lars@metafoo.de> Link: https://lore.kernel.org/r/20201218145625.2045-2-tiwai@suse.de Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-07-29 17:19:25 +02:00
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oss
seq
compress_offload.c
control.c
control_compat.c
ctljack.c
device.c
hrtimer.c
hwdep.c
hwdep_compat.c
info.c
info_oss.c
init.c
isadma.c
jack.c	ALSA: jack: Access input_dev under mutex	2022-06-09 10:20:51 +02:00
Kconfig
Makefile
memalloc.c	ALSA: memalloc: Align buffer allocations in page size	2022-07-29 17:19:25 +02:00
memory.c
misc.c
pcm.c	ALSA: pcm: Fix potential AB/BA lock with buffer_mutex and mmap_lock	2022-04-08 14:39:53 +02:00
pcm_compat.c
pcm_dmaengine.c
pcm_drm_eld.c
pcm_iec958.c
pcm_lib.c	ALSA: pcm: Fix potential AB/BA lock with buffer_mutex and mmap_lock	2022-04-08 14:39:53 +02:00
pcm_local.h
pcm_memory.c	ALSA: pcm: Check for null pointer of pointer substream before dereferencing it	2022-06-09 10:21:03 +02:00
pcm_misc.c	ALSA: pcm: Test for "silence" field in struct "pcm_format_data"	2022-04-20 09:23:27 +02:00
pcm_native.c	ALSA: pcm: Fix potential AB/BA lock with buffer_mutex and mmap_lock	2022-04-08 14:39:53 +02:00
pcm_param_trace.h
pcm_timer.c
pcm_trace.h
rawmidi.c
rawmidi_compat.c
seq_device.c
sgbuf.c
sound.c
sound_oss.c
timer.c
timer_compat.c
vmaster.c