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| author | Junrui Luo <moonafterrain@outlook.com> | 2025-11-28 12:06:31 +0800 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2025-11-29 10:33:44 +0100 |
| commit | 324f3e03e8a85931ce0880654e3c3eb38b0f0bba (patch) | |
| tree | 11021dc042692151516f3f1f3a4454845967617b /tools/testing/selftests/bpf/prog_tests | |
| parent | d01a3aad7f2c183152dec02202aa1d23ee02556c (diff) | |
ALSA: dice: fix buffer overflow in detect_stream_formats()
The function detect_stream_formats() reads the stream_count value directly
from a FireWire device without validating it. This can lead to
out-of-bounds writes when a malicious device provides a stream_count value
greater than MAX_STREAMS.
Fix by applying the same validation to both TX and RX stream counts in
detect_stream_formats().
Reported-by: Yuhao Jiang <danisjiang@gmail.com>
Reported-by: Junrui Luo <moonafterrain@outlook.com>
Fixes: 58579c056c1c ("ALSA: dice: use extended protocol to detect available stream formats")
Cc: stable@vger.kernel.org
Reviewed-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Junrui Luo <moonafterrain@outlook.com>
Link: https://patch.msgid.link/SYBPR01MB7881B043FC68B4C0DA40B73DAFDCA@SYBPR01MB7881.ausprd01.prod.outlook.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests')
0 files changed, 0 insertions, 0 deletions