CVE-2025-68783 | In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-mixer: us16x08: validate meter packet indices get_meter_levels_from_urb() parses the 64-byte meter packets sent by the device and fills the per-channel arrays meter_level[], comp_level[] and master_level[] in struct snd_us16x08_meter_store. Currently the function derives the channel index directly from the meter packet (MUB2(meter_urb, s) - 1) and uses it to index those arrays wi
In the Linux kernel, the following vulnerability has been resolved:
ALSA: usb-mixer: us16x08: validate meter packet indices
get_meter_levels_from_urb() parses the 64-byte meter packets sent by
the device and fills the per-channel arrays meter_level[],
comp_level[] and master_level[] in struct snd_us16x08_meter_store.
Currently the function derives the channel index directly from the
meter packet (MUB2(meter_urb, s) - 1) and uses it to index those
arrays without validating the range. If the packet contains a
negative or out-of-range channel number, the driver may write past
the end of these arrays.
Introduce a local channel variable and validate it before updating the
arrays. We reject negative indices, limit meter_level[] and
comp_level[] to SND_US16X08_MAX_CHANNELS, and guard master_level[]
updates with ARRAY_SIZE(master_level).
- 🔗 git.kernel.org/stable/c/53461710a95e15ac1f6542450943a492…
- 🔗 git.kernel.org/stable/c/2168866396bd28ec4f3c8da0fbc7d08b…
- 🔗 git.kernel.org/stable/c/cde47f4ccad6751ac36b7471572ddf38…
- 🔗 git.kernel.org/stable/c/2f21a7cbaaa93926f5be15bc095b9c57…
- 🔗 git.kernel.org/stable/c/a8ad320efb663be30b794e3dd3e82930…
- 🔗 git.kernel.org/stable/c/eaa95228b8a56c4880a182c0350d6792…
- 🔗 git.kernel.org/stable/c/5526c1c6ba1d0913c7dfcbbd6fe1744e…
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CVE-2025-68783 | In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-mixer: us16x08: validate meter packet indices get_meter_levels_from_urb() parses the 64-byte meter packets sent by the device and fills the per-channel arrays meter_level[], comp_level[] and master_level[] in struct snd_us16x08_meter_store. Currently the function derives the channel index directly from the meter packet (MUB2(meter_urb, s) - 1) and uses it to index those arrays wi
In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-mixer: us16x08: validate meter packet indices get_meter_levels_from_urb() parses the 64-byte meter packets sent by the device and fills the per-channel arrays m