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| author | Junrui Luo <moonafterrain@outlook.com> | 2025-12-03 12:27:03 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-12-18 13:55:19 +0100 |
| commit | 6275fd726d53a8ec724f20201cf3bd862711e17b (patch) | |
| tree | bde878d5c5fe14b9de22d47962ea801a6d99e3cf /include/net/aligned_data.h | |
| parent | d532934cf11ada5897b08c047b721f2caac11591 (diff) | |
ALSA: firewire-motu: fix buffer overflow in hwdep read for DSP events
[ Upstream commit 210d77cca3d0494ed30a5c628b20c1d95fa04fb1 ]
The DSP event handling code in hwdep_read() could write more bytes to
the user buffer than requested, when a user provides a buffer smaller
than the event header size (8 bytes).
Fix by using min_t() to clamp the copy size, This ensures we never copy
more than the user requested.
Reported-by: Yuhao Jiang <danisjiang@gmail.com>
Reported-by: Junrui Luo <moonafterrain@outlook.com>
Fixes: 634ec0b2906e ("ALSA: firewire-motu: notify event for parameter change in register DSP model")
Signed-off-by: Junrui Luo <moonafterrain@outlook.com>
Link: https://patch.msgid.link/SYBPR01MB78810656377E79E58350D951AFD9A@SYBPR01MB7881.ausprd01.prod.outlook.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include/net/aligned_data.h')
0 files changed, 0 insertions, 0 deletions