In the Linux kernel, the following vulnerability has been resolved:
ALSA: mixer: oss: Add card disconnect checkpoints
ALSA OSS mixer layer calls the kcontrol ops rather individually, and pending calls might be not always caught at disconnecting the device.
For avoiding the potential UAF scenarios, add sanity checks of the card disconnection at each entry point of OSS mixer accesses. The rwsem is taken just before that check, hence the rest context should be covered by that properly.
CVSS Details
- CVSS 3.1 Base Score: 7.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 23, 2026 | Jul 23, 2026 |
| Ubuntu | — | Upgrade linux-image-nvidia-tegra-rtUpgrade linux-image-nvidia-tegraUpgrade linux-image-nvidia-tegra-6.8Upgrade linux-image-6.8.0-1035-nvidia-tegra-rtNo solution existsUpgrade linux-image-nvidia-tegra-rt-6.8Upgrade linux-image-6.8.0-1035-nvidia-tegra | Sep 21, 2026 | Sep 18, 2026 |
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