# CVE-2021-46926: linux: In the Linux kernel, the following vulnerability has been resolved:  ALSA: hda: intel-sdw-acpi: harden detection of c...

CVE-2021-46926 is fixed in linux on 1 platform, first by DEBIAN-CVE-2021-46926, released February 27, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2021-46926
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0021
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Feb 27, 2024

## Description

In the Linux kernel, the following vulnerability has been resolved:  ALSA: hda: intel-sdw-acpi: harden detection of controller  The existing code currently sets a pointer to an ACPI handle before checking that it's actually a SoundWire controller. This can lead to issues where the graph walk continues and eventually fails, but the pointer was set already.  This patch changes the logic so that the information provided to the caller is set when a controller is found.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 5.15.15-1 | [DEBIAN-CVE-2021-46926](https://patchblox.com/security/data/fix/linux/debian-cve-2021-46926.md) | Feb 27, 2024 |
| Linux | linux Debian 13.5 (trixie) | 5.15.15-1 | [DEBIAN-CVE-2021-46926](https://patchblox.com/security/data/fix/linux/debian-cve-2021-46926.md) | Feb 27, 2024 |
| Linux | linux Debian 14 | 5.15.15-1 | [DEBIAN-CVE-2021-46926](https://patchblox.com/security/data/fix/linux/debian-cve-2021-46926.md) | Feb 27, 2024 |

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Data as of 2026-11-09T13:31:49Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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