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linux/sound/soc/sof
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Dan Carpenter d923485630 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 08:56:56 +02:00
..
amd ASoC: SOF: amd: Fix NULL pointer crash in acp_sof_ipc_msg_data function 2023-05-09 14:43:33 +09:00
imx ASoC: SOF: imx8ulp: add missing of_node_put() in imx8ulp_probe() 2022-08-24 12:21:28 +01:00
intel ASoC: SOF: Intel: hda-mlink: add helper to program SoundWire PCMSyCM registers 2023-05-15 10:20:14 +09:00
mediatek ASoC: SOF: Prepare ipc_msg_data to be used with compress API 2023-01-17 13:37:51 +00:00
xtensa ASoC: SOF: dsp_arch_ops: add kernel log level parameter for oops and stack 2021-12-23 13:38:25 +00:00
compress.c ASoC: SOF: Use no_reply calls for TX 2023-04-20 12:51:45 +01:00
control.c ASoC: SOF: control: Extend the optionality of IPC ops to IPC as well 2022-12-25 23:32:33 +00:00
core.c ASoC: SOF: Add support for DSPless mode 2023-04-04 12:42:34 +01:00
debug.c ASoC: SOF: debug: conditionally bump runtime_pm counter on exceptions 2023-05-15 10:20:57 +09:00
iomem-utils.c ASoC: SOF: Split up utils.c into sof-utils and iomem-utils 2022-02-10 15:19:04 +00:00
ipc.c ASoC: SOF: client: Add sof_client_ipc_set_get_data() 2022-10-31 13:20:20 +00:00
ipc3-control.c ASoC: SOF: ipc3-control: Merge functions to handle bytes_ext get variants 2023-03-13 14:06:49 +00:00
ipc3-dtrace.c ASoC: SOF: ipc3-dtrace: uninitialized data in dfsentry_trace_filter_write() 2023-07-27 08:56:56 +02:00
ipc3-loader.c ASoC: SOF: Introduce container struct for SOF firmware 2022-10-21 13:04:54 +01:00
ipc3-pcm.c ASoC: SOF: Use no_reply calls for TX 2023-04-20 12:51:45 +01:00
ipc3-priv.h ASoC: SOF: Modify the host trace_init parameter list to include dmab 2022-05-19 16:44:17 +01:00
ipc3-topology.c ASoC: SOF: ipc3-topology: Make sure that only one cmd is sent in dai_config 2023-05-15 10:21:12 +09:00
ipc3.c ASoC: SOF: Use no_reply calls for TX 2023-04-20 12:51:45 +01:00
ipc4-control.c ASoC: SOF: ipc4-control: Return on error in sof_ipc4_widget_kcontrol_setup() 2023-03-21 16:31:10 +00:00
ipc4-fw-reg.h ASoC: SOF: add ipc4_fw_reg header file 2023-02-03 12:03:48 +00:00
ipc4-loader.c ASoC: SOF: ipc4-loader: get max pipeline number 2022-11-09 13:44:18 +00:00
ipc4-mtrace.c ASoC: SOF: ipc4-mtrace: process pending logs upon FW crash 2023-03-07 13:58:20 +00:00
ipc4-pcm.c ASoC: SOF: pcm/Intel: Pause-resume improvements for 2023-04-20 14:49:35 +01:00
ipc4-priv.h ASoC: SOF: add time info structure for ipc4 path 2023-02-03 12:03:49 +00:00
ipc4-topology.c ASoC: SOF: Separate the tokens for input and output pin index 2023-05-15 20:10:17 +09:00
ipc4-topology.h ASoC: SOF: ipc4/intel: Add support for chained DMA 2023-03-21 12:13:31 +00:00
ipc4.c ASoC: SOF: ipc4: Ensure DSP is in D0I0 during sof_ipc4_set_get_data() 2023-03-22 13:17:27 +00:00
Kconfig ASoC: SOF: Drop obsolete dependency on COMPILE_TEST 2022-11-28 13:04:35 +00:00
loader.c ASoC: SOF: loader: Remove log prefixes for snd_sof_run_firmware 2023-03-07 13:58:16 +00:00
Makefile ASoC: SOF: IPC4: probes: Implement IPC4 ops for probes client device 2022-10-31 13:20:22 +00:00
nocodec.c ASoC: SOF: nocodec: Drop empty platform remove function 2022-12-25 23:32:55 +00:00
ops.c ASoC: SOF: Switch to IPC generic firmware tracing 2022-05-19 16:44:15 +01:00
ops.h Merge branch 'for-linus' into for-next 2023-02-16 15:06:18 +01:00
pcm.c ASoC: SOF: pcm: fix pm_runtime imbalance in error handling 2023-05-15 10:20:58 +09:00
pm.c ASoC: SOF: pm: save io region state in case of errors in resume 2023-05-15 10:21:14 +09:00
sof-acpi-dev.c ASoC: SOF: add IPC-dependent file names 2022-04-19 12:03:34 +01:00
sof-acpi-dev.h ASoC: SOF: ACPI: avoid reverse module dependency 2021-03-02 15:31:40 +01:00
sof-audio.c ASoC: SOF: pcm: Add an option to skip platform trigger during stop 2023-04-20 12:51:59 +01:00
sof-audio.h ASoC: SOF: pcm: Add an option to skip platform trigger during stop 2023-04-20 12:51:59 +01:00
sof-client-ipc-flood-test.c ASoC: SOF: Use no_reply calls for TX 2023-04-20 12:51:45 +01:00
sof-client-ipc-msg-injector.c ASoC: SOF: ipc-msg-injector: fix copy in sof_msg_inject_ipc4_dfs_write() 2022-07-14 13:26:37 +01:00
sof-client-probes-ipc3.c ASoC: SOF: Use no_reply calls for TX 2023-04-20 12:51:45 +01:00
sof-client-probes-ipc4.c ASoC: SOF: Use no_reply calls for TX 2023-04-20 12:51:45 +01:00
sof-client-probes.c ASoC: SOF: sof-client-probes: fix pm_runtime imbalance in error handling 2023-05-15 10:20:59 +09:00
sof-client-probes.h ASoC: SOF: IPC4: probes: Implement IPC4 ops for probes client device 2022-10-31 13:20:22 +00:00
sof-client.c ASoC: SOF: Add support for DSPless mode 2023-04-04 12:42:34 +01:00
sof-client.h ASoC: SOF: ipc: Add no reply inline calls 2023-04-20 12:51:44 +01:00
sof-of-dev.c ASoC: SOF: add IPC-dependent file names 2022-04-19 12:03:34 +01:00
sof-of-dev.h ASoC: SOF: Introduce function sof_of_machine_select 2022-08-23 18:22:29 +01:00
sof-pci-dev.c ASoC: SOF: Add path definition for external firmware libraries 2022-10-21 13:05:03 +01:00
sof-pci-dev.h ASoC: SOF: pci: split PCI into different drivers 2021-03-02 15:32:00 +01:00
sof-priv.h ASoC: SOF: ipc: Add no reply inline calls 2023-04-20 12:51:44 +01:00
sof-utils.c ASoC: SOF: remove unneeded dev_vdbg 2022-09-19 15:44:06 +01:00
sof-utils.h ASoC: SOF: Split up utils.c into sof-utils and iomem-utils 2022-02-10 15:19:04 +00:00
stream-ipc.c ASoC: SOF: Add support for compress API for stream data/offset 2023-01-17 13:37:53 +00:00
topology.c ASoC: SOF: topology: Fix tuples array allocation 2023-05-15 20:10:18 +09:00
trace.c ASoC: SOF: trace: No need to check for op pointer in sof_fw_trace_free() 2022-12-25 23:32:39 +00:00