Matti Vaittinen 4e208294de tools: iio: iio_generic_buffer: Fix read size ... [ Upstream commit 7c919b619b ] When noevents is true and small buffer is used the allocated memory for holding the data may be smaller than the hard-coded 64 bytes. This can cause the iio_generic_buffer to crash. Following was recorded on beagle bone black with v6.0 kernel and the digit fix patch: https://lore.kernel.org/all/Y0f+tKCz+ZAIoroQ@dc75zzyyyyyyyyyyyyycy-3.rev.dnainternet.fi/ using valgrind; ==339== Using Valgrind-3.18.1 and LibVEX; rerun with -h for copyright info ==339== Command: /iio_generic_buffer -n kx022-accel -T0 -e -l 10 -a -w 2000000 ==339== Parent PID: 307 ==339== ==339== Syscall param read(buf) points to unaddressable byte(s) ==339== at 0x496BFA4: read (read.c:26) ==339== by 0x11699: main (iio_generic_buffer.c:724) ==339== Address 0x4ab3518 is 0 bytes after a block of size 160 alloc'd ==339== at 0x4864B70: malloc (vg_replace_malloc.c:381) ==339== by 0x115BB: main (iio_generic_buffer.c:677) Fix this by always using the same size for reading as was used for data storage allocation. Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com> Link: https://lore.kernel.org/r/Y0kMh0t5qUXJw3nQ@dc75zzyyyyyyyyyyyyycy-3.rev.dnainternet.fi Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-12-02 17:41:10 +01:00
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.gitignore	.gitignore: add SPDX License Identifier	2020-03-25 11:50:48 +01:00
Build	tools: iio: Correctly add make dependency for iio_utils	2019-11-10 17:11:06 +00:00
iio_event_monitor.c	iio: event_monitor: Enable events before monitoring	2021-03-25 19:13:52 +00:00
iio_generic_buffer.c	tools: iio: iio_generic_buffer: Fix read size	2022-12-02 17:41:10 +01:00
iio_utils.c	tools: iio: iio_utils: fix digit calculation	2022-11-03 23:59:11 +09:00
iio_utils.h	iio: event_monitor: Enable events before monitoring	2021-03-25 19:13:52 +00:00
lsiio.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500	2019-06-19 17:09:55 +02:00
Makefile	tools: iio: convert iio_generic_buffer to use new IIO buffer API	2021-03-11 20:47:07 +00:00