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Arnd Bergmann
e8991d1d64
KASAN caught a buffer overflow with the hardcoded 2048 byte buffer
size, when 2080 bytes are written to it:
BUG: KASAN: slab-out-of-bounds in snd_pcm_format_set_silence+0x3bc/0x3e4
Write of size 8 at addr ffff0000c8149800 by task kunit_try_catch/1297
CPU: 0 PID: 1297 Comm: kunit_try_catch Tainted: G N 6.8.0-rc4-next-20240216 #1
Hardware name: linux,dummy-virt (DT)
Call trace:
kasan_report+0x78/0xc0
__asan_report_store_n_noabort+0x1c/0x28
snd_pcm_format_set_silence+0x3bc/0x3e4
_test_fill_silence+0xdc/0x298
test_format_fill_silence+0x110/0x228
kunit_try_run_case+0x144/0x3bc
kunit_generic_run_threadfn_adapter+0x50/0x94
kthread+0x330/0x3e8
ret_from_fork+0x10/0x20
Allocated by task 1297:
__kmalloc+0x17c/0x2f0
kunit_kmalloc_array+0x2c/0x78
test_format_fill_silence+0xcc/0x228
kunit_try_run_case+0x144/0x3bc
kunit_generic_run_threadfn_adapter+0x50/0x94
kthread+0x330/0x3e8
ret_from_fork+0x10/0x20
Replace the incorrect size with the correct length of 260 64-bit samples.
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Suggested-by: Ivan Orlov <ivan.orlov0322@gmail.com>
Fixes: 3e39acf56e ("ALSA: core: Add sound core KUnit test")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Acked-by: Ivan Orlov <ivan.orlov0322@gmail.com>
Link: https://lore.kernel.org/r/20240217104311.3749655-1-arnd@kernel.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.