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authorLinus Torvalds <torvalds@linux-foundation.org>2022-03-24 01:11:12 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2022-03-24 01:11:12 +0300
commit40037e4f8b2f7d33b8d266f139bf345962c48d46 (patch)
tree177880adcf13999593f2f09ed4432b665e4868bd /sound/core/oss/pcm_plugin.c
parent182966e1cd74ec0e326cd376de241803ee79741b (diff)
parentef248d9bd616b04df8be25539a4dc5db4b6c56f4 (diff)
downloadlinux-40037e4f8b2f7d33b8d266f139bf345962c48d46.tar.xz
Merge tag 'sound-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai: "It's been a fairly calm development cycle. There are a few last-minute ALSA core fixes, most notably for covering PCM ioctl races, but the most of rest are device-specific changes. Below are some highlights: ALSA core: - Fixes for PCM ioctl races that may lead to UAF - Fix for oversized allocations in PCM OSS layer ASoC: - Start of moving SoF to support multiple IPC mechanisms - Use of NHLT ACPI table to reduce the amount of quirking required for Intel systems - Preliminary works forthcoming Intel AVS driver for legacy Intel DSP firmwares - Support for AMD PDM, Atmel PDMC, Awinic AW8738, i.MX cards with TLV320AIC31xx, Intel machines with CS35L41 and ESSX8336, Mediatek MT8181 wideband bluetooth, nVidia Tegra234, Qualcomm SC7280, Renesas RZ/V2L, Texas Instruments TAS585M HD-audio: - Driver re-binding fix for HD-audio - Updates for Intel ADL and Tegra234, various platform quirks for Dell, HP, Lenovo, ASUS, Samsung and Clevo machines USB-audio: - Quirk updates for Scarlett2, RODE, Corsair devices" * tag 'sound-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (486 commits) ALSA: hda/realtek: Add alc256-samsung-headphone fixup ALSA: pci: fix reading of swapped values from pcmreg in AC97 codec ALSA: pcm: Add stream lock during PCM reset ioctl operations ALSA: pcm: Fix races among concurrent prealloc proc writes ALSA: pcm: Fix races among concurrent prepare and hw_params/hw_free calls ALSA: pcm: Fix races among concurrent read/write and buffer changes ALSA: pcm: Fix races among concurrent hw_params and hw_free calls ASoC: atmel: mchp-pdmc: print the correct property name MAINTAINERS: Add Shengjiu to maintainer list of sound/soc/fsl ASoC: SOF: Add a new dai_get_clk topology IPC op ASoC: SOF: topology: Add ops for setting up and tearing down pipelines ASoC: SOF: expose sof_route_setup() ASoC: SOF: Add dai_link_fixup PCM op for IPC3 ASoC: SOF: Add trigger PCM op for IPC3 ASoC: SOF: Define hw_params PCM op for IPC3 ASoC: SOF: Introduce IPC3 PCM hw_free op ASoC: SOF: pcm: expose the sof_pcm_setup_connected_widgets() function ASoC: SOF: Introduce IPC-specific PCM ops ASoC: SOF: Add bytes_ext control IPC ops for IPC3 ASoC: SOF: Add bytes_get/put control IPC ops for IPC3 ...
Diffstat (limited to 'sound/core/oss/pcm_plugin.c')
-rw-r--r--sound/core/oss/pcm_plugin.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/sound/core/oss/pcm_plugin.c b/sound/core/oss/pcm_plugin.c
index 061ba06bc926..82e180c776ae 100644
--- a/sound/core/oss/pcm_plugin.c
+++ b/sound/core/oss/pcm_plugin.c
@@ -62,7 +62,10 @@ static int snd_pcm_plugin_alloc(struct snd_pcm_plugin *plugin, snd_pcm_uframes_t
width = snd_pcm_format_physical_width(format->format);
if (width < 0)
return width;
- size = frames * format->channels * width;
+ size = array3_size(frames, format->channels, width);
+ /* check for too large period size once again */
+ if (size > 1024 * 1024)
+ return -ENOMEM;
if (snd_BUG_ON(size % 8))
return -ENXIO;
size /= 8;