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linux/sound/soc
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Dan Carpenter 813572a08d ASoC: SOF: ipc3-dtrace: uninitialized data in dfsentry_trace_filter_write() 
[ Upstream commit 469e2f28c2 ]

This doesn't check how many bytes the simple_write_to_buffer() writes to
the buffer.  The only thing that we know is that the first byte is
initialized and the last byte of the buffer is set to NUL.  However
the middle bytes could be uninitialized.

There is no need to use simple_write_to_buffer().  This code does not
support partial writes but instead passes "pos = 0" as the starting
offset regardless of what the user passed as "*ppos".  Just use the
copy_from_user() function and initialize the whole buffer.

Fixes: 671e0b9005 ("ASoC: SOF: Clone the trace code to ipc3-dtrace as fw_tracing implementation")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/74148292-ce4d-4e01-a1a7-921e6767da14@moroto.mountain
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2023-07-27 08:50:40 +02:00
..
adi ASoC: adi: Migrate to new style legacy DAI naming flag 2022-06-27 13:16:34 +01:00
amd ASoC: amd: acp: fix for invalid dai id handling in acp_get_byte_count() 2023-07-27 08:50:36 +02:00
apple ASoC: apple: mca: Improve handling of unavailable DMA channels 2023-03-11 13:55:31 +01:00
atmel ASoC: mchp-spdifrx: Fix uninitialized use of mr in mchp_spdifrx_hw_params() 2023-03-10 09:33:19 +01:00
au1x ASoC: au1x: Migrate to new style legacy DAI naming flag 2022-06-27 13:16:39 +01:00
bcm ASoC: bcm2835-i2s: Switch to use dev_err_probe() helper 2022-09-14 15:06:00 +01:00
cirrus ASoC: ep93xx: Migrate to new style legacy DAI naming flag 2022-06-27 13:16:20 +01:00
codecs ASoC: codecs: wcd938x: fix dB range for HPHL and HPHR 2023-07-27 08:50:36 +02:00
dwc ASoC: dwc: move DMA init to snd_soc_dai_driver probe() 2023-06-21 16:00:53 +02:00
fsl ASoC: fsl_sai: Revert "ASoC: fsl_sai: Enable MCTL_MCLK_EN bit for master mode" 2023-07-27 08:50:29 +02:00
generic ASoC: simple-card: Add missing of_node_put() in case of error 2023-06-28 11:12:37 +02:00
hisilicon ASoC: hisilicon: Migrate to new style legacy DAI naming flag 2022-06-27 13:16:24 +01:00
img ASoC: Refactor non_legacy_dai_naming flag 2022-06-29 16:58:08 +01:00
intel ASoC: Intel: sof_sdw: remove SOF_SDW_TGL_HDMI for MeteorLake devices 2023-07-19 16:21:18 +02:00
jz4740 ASoC: jz4740-i2s: Handle independent FIFO flush bits 2023-01-07 11:11:51 +01:00
kirkwood ASoC: kirkwood: Iterate over array indexes instead of using pointer math 2023-03-10 09:33:58 +01:00
mediatek ASoC: mediatek: mt8173: Fix snd_soc_component_initialize error path 2023-07-19 16:22:14 +02:00
meson ASoC: meson: Remove now redundant non_legacy_dai_naming flag 2022-06-27 13:16:48 +01:00
mxs ASoC: mxs-saif: Migrate to new style legacy DAI naming flag 2022-06-27 13:16:43 +01:00
pxa ASoC: pxa: fix null-pointer dereference in filter() 2022-12-31 13:32:11 +01:00
qcom ASoC: qcom: q6apm: do not close GPR port before closing graph 2023-07-27 08:50:37 +02:00
rockchip ASoC: rockchip: spdif: Add missing clk_disable_unprepare() in rk_spdif_runtime_resume() 2022-12-31 13:33:07 +01:00
samsung ASoC: soc.h: remove num_cpus/codecs 2022-09-20 12:19:30 +01:00
sh ASoC: rsnd: fixup #endif position 2023-03-10 09:33:19 +01:00
sof ASoC: SOF: ipc3-dtrace: uninitialized data in dfsentry_trace_filter_write() 2023-07-27 08:50:40 +02:00
spear ASoC: spear: Migrate to new style legacy DAI naming flag 2022-06-27 13:16:18 +01:00
sprd ASoC: sprd: Use managed buffer allocation 2021-08-04 08:10:27 +02:00
sti ASoC: sti-uniperf: Migrate to new style legacy DAI naming flag 2022-06-27 13:16:29 +01:00
stm ASoC: stm32: i2s: remove irqf_oneshot flag 2022-11-10 17:50:52 +00:00
sunxi ASoC: sunxi: fix declaration compile error 2022-09-21 10:28:19 +01:00
tegra ASoC: tegra: Fix AMX byte map 2023-07-27 08:50:30 +02:00
ti ASoC: ti: omap-mcbsp: remove useless assignment 2022-08-31 12:13:05 +01:00
uniphier ASoC: uniphier: Remove now redundant non_legacy_dai_naming flag 2022-06-27 13:16:55 +01:00
ux500 ASoC: ux500: Migrate to new style legacy DAI naming flag 2022-06-27 13:16:41 +01:00
xilinx ASoC: xilinx: Suppress second error message about reset failure in .remove() 2022-07-05 16:44:31 +01:00
xtensa ASoC: xtensa: Migrate to new style legacy DAI naming flag 2022-06-27 13:16:33 +01:00
Kconfig ASoC: apple: mca: Start new platform driver 2022-08-25 13:51:34 +01:00
Makefile ASoC: apple: mca: Start new platform driver 2022-08-25 13:51:34 +01:00
soc-ac97.c ASoC: Variable type completion 2022-08-17 13:00:27 +01:00
soc-acpi.c ALSA: Replace acpi_bus_get_device() 2022-02-01 08:08:08 +01:00
soc-card.c ASoC: Introduce 'fixup_controls' card method 2022-06-10 13:32:20 +01:00
soc-component.c Revert "ASoC: soc-component: using pm_runtime_resume_and_get instead of pm_runtime_get_sync" 2022-10-04 14:09:30 +01:00
soc-compress.c ASoC: soc-compress: Inherit atomicity from DAI link for Compress FE 2023-05-11 23:03:28 +09:00
soc-core.c ASoC: core: Fix use-after-free in snd_soc_exit() 2022-10-28 12:58:04 +01:00
soc-dai.c ASoC: Change handling of unimplemented set_bclk_ratio 2022-08-19 13:19:59 +01:00
soc-dapm.c ASoC: dapm: Don't use prefix for regulator name 2022-10-26 14:17:34 +01:00
soc-devres.c ASoC: core: Remove only the registered component in devm functions 2020-07-07 11:55:46 +01:00
soc-generic-dmaengine-pcm.c ASoC: soc.h: remove num_cpus/codecs 2022-09-20 12:19:30 +01:00
soc-jack.c ASoC: soc-card: Create jack kcontrol without pins 2022-04-14 17:37:21 +01:00
soc-link.c ASoC: soc-pcm: care trigger rollback 2020-12-09 12:13:38 +00:00
soc-ops.c ASoC: ops: Correct bounds check for second channel on SX controls 2022-11-25 16:29:33 +00:00
soc-pcm.c ASoC: soc-pcm: test if a BE can be prepared 2023-06-21 16:00:53 +02:00
soc-topology-test.c ASoC: topology: KUnit: Remove now redundant non_legacy_dai_naming flag 2022-06-27 13:16:54 +01:00
soc-topology.c ASoC: topology: Properly access value coming from topology file 2023-03-10 09:33:18 +01:00
soc-utils-test.c ASoC: soc-utils-test: Add test for snd_soc_params_to_bclk() 2022-08-17 15:19:14 +01:00
soc-utils.c ASoC: soc-utils: Remove __exit for snd_soc_util_exit() 2022-11-07 13:37:04 +00:00