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linux/sound/soc/sof
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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
..
amd ASoC: SOF: amd: Fix for handling spurious interrupts from DSP 2023-03-03 11:52:22 +01:00
imx ASoC: SOF: imx8ulp: add missing of_node_put() in imx8ulp_probe() 2022-08-24 12:21:28 +01:00
intel ASoC: SOF: Intel: pci-tng: revert invalid bar size setting 2023-04-06 12:10:38 +02:00
mediatek ASoC: SOF: mediatek: initialize panic_info to zero 2023-01-12 12:02:37 +01:00
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: compress: Add copy function for capture case 2022-08-31 12:12:59 +01:00
control.c ASoC: SOF: control: use pm_runtime_resume_and_get() 2022-04-27 14:15:24 +01:00
core.c ASoC: SOF: Revert: "core: unregister clients and machine drivers in .shutdown" 2023-01-12 12:02:35 +01:00
debug.c ASoC: SOF: debug: conditionally bump runtime_pm counter on exceptions 2023-06-09 10:34:13 +02:00
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: Compile and runtime IPC version selection 2022-06-14 11:22:12 +01:00
ipc3-control.c ASoC: SOF: ipc3: Remove the ipc3-ops.h header file 2022-05-04 15:31:18 +01:00
ipc3-dtrace.c ASoC: SOF: ipc3-dtrace: uninitialized data in dfsentry_trace_filter_write() 2023-07-27 08:50:40 +02:00
ipc3-loader.c ASoC: SOF: ipc3-loader: Print out the non matching ext_man magic number 2022-07-15 20:11:34 +01:00
ipc3-pcm.c ASoC: SOF: Adding amd HS functionality to the sof core 2022-09-20 19:38:03 +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: use old pipeline teardown flow with SOF2.1 and older 2022-11-01 18:28:07 +00:00
ipc3.c ASoC: SOF: ipc3: Check for upper size limit for the received message 2023-04-06 12:10:38 +02:00
ipc4-control.c ASoC: SOF: IPC4: update gain ipc msg definition to align with fw 2023-04-06 12:10:39 +02:00
ipc4-loader.c ASoC: SOF: replace ipc4-loader dev_vdbg with tracepoints 2022-09-19 15:44:08 +01:00
ipc4-mtrace.c ASoC: SOF: ipc4-mtrace: prevent underflow in sof_ipc4_priority_mask_dfs_write() 2023-02-09 11:28:01 +01:00
ipc4-pcm.c ASoC: SOF: ipc4-pcm: set pcm rate to dai setting 2022-07-15 20:11:31 +01:00
ipc4-priv.h ASoC: SOF: ipc4: Add support for mtrace log extraction 2022-09-09 18:48:48 +01:00
ipc4-topology.c ASoC: SOF: IPC4: update gain ipc msg definition to align with fw 2023-04-06 12:10:39 +02:00
ipc4-topology.h ASoC: SOF: IPC4: update gain ipc msg definition to align with fw 2023-04-06 12:10:39 +02:00
ipc4.c ASoC: SOF: ipc4: Ensure DSP is in D0I0 during sof_ipc4_set_get_data() 2023-04-13 16:55:18 +02:00
Kconfig ASoC: SOF: Kconfig: Make IPC_MESSAGE_INJECTOR depend on SND_SOC_SOF 2022-08-23 13:49:56 +01:00
loader.c ASoC: SOF: loader: Call optional query_fw_configuration on first boot 2022-04-29 13:06:17 +01:00
Makefile ASoC: SOF: ipc4: Add support for mtrace log extraction 2022-09-09 18:48:48 +01:00
nocodec.c ASOC: SOF: use devm_kcalloc() instead of devm_kzalloc() 2022-09-19 17:52:36 +01:00
ops.c ASoC: SOF: Switch to IPC generic firmware tracing 2022-05-19 16:44:15 +01:00
ops.h ASoC: SOF: Add ops_free 2022-06-10 13:32:05 +01:00
pcm.c ASoC: SOF: pcm: fix pm_runtime imbalance in error handling 2023-06-09 10:34:13 +02:00
pm.c ASoC: SOF: pm: save io region state in case of errors in resume 2023-06-09 10:34:13 +02:00
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: sof-audio: start with the right widget type 2023-02-22 12:59:40 +01:00
sof-audio.h ASoC: SOF: topology: add code to parse config params for ACPDMIC dai 2022-06-14 11:22:10 +01:00
sof-client-ipc-flood-test.c ASoC: SOF: sof-client-ipc-flood-test: use pm_runtime_resume_and_get() 2022-05-19 16:44:29 +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.c ASoC: SOF: sof-client-probes: fix pm_runtime imbalance in error handling 2023-06-09 10:34:13 +02:00
sof-client-probes.h ASoC: SOF: probes: rename assign/free callbacks as startup/shutdown 2022-07-15 20:11:38 +01:00
sof-client.c ASoC: SOF: sof-client: remove use of __func__ in dev_dbg 2022-06-17 10:46:46 +01:00
sof-client.h ASoC: SOF: sof-client: Add API to get the ipc_type 2022-05-09 18:17:58 +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: pci: Change DMI match info to support all Chrome platforms 2022-09-19 17:52:44 +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: add quirk to override topology mclk_id 2022-09-19 18:11:45 +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: Remove ipc_pcm_params() ops 2022-03-11 13:41:09 +00:00
topology.c ASoC: SOF: topology: Fix logic for copying tuples 2023-05-24 17:32:45 +01:00
trace.c ASoC: SOF: Switch to IPC generic firmware tracing 2022-05-19 16:44:15 +01:00