alsa-lib: The Advanced Linux Sound Architecture (ALSA) library before 1.2.16.1 contains a double-free vulnerability in parse_de...
CVE-2026-56109 is fixed in 13 products on 1 platform, first by libasound2-data 1.2.15.3-1ubuntu1.1, released June 22, 2026. It is not reported as exploited. Patch Radar priority: Routine.
The Advanced Linux Sound Architecture (ALSA) library before 1.2.16.1 contains a double-free vulnerability in parse_def() in src/conf.c that allows attackers to corrupt memory by supplying maliciously crafted ALSA configuration text. When parsing nested compound or array configuration blocks, parse_def() fails to check return values before continuing, causing snd_config_delete() to be called twice on the same already-freed node, resulting in a NULL-pointer write or invalid memory read.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| alsa · opensuse-leap 16.0 | 1.2.14-160000.3.1 | OPENSUSE-SU-2026:21075-1 | Jun 28, 2026 |
| alsa · sles 15.7 | 1.2.10-150600.4.3.1 | SUSE-SU-2026:3270-1 | Jul 27, 2026 |
| alsa · sles 16.0 | 1.2.14-160000.3.1 | SUSE-SU-2026:22381-1 | Jun 28, 2026 |
| alsa-lib · Debian 14 | 1.2.16.1-1 | DEBIAN-CVE-2026-56109 | Jul 3, 2026 |
| alsa-lib · amzn 2023 | 1.2.7.2-1.amzn2023.0.4 | ALAS2023-2026-2082 | Aug 31, 2026 |
| alsa-lib-debuginfo · amzn 2023 | 1.2.7.2-1.amzn2023.0.4 | ALAS2023-2026-2082 | Aug 31, 2026 |
| alsa-lib-debugsource · amzn 2023 | 1.2.7.2-1.amzn2023.0.4 | ALAS2023-2026-2082 | Aug 31, 2026 |
| alsa-lib-devel · amzn 2023 | 1.2.7.2-1.amzn2023.0.4 | ALAS2023-2026-2082 | Aug 31, 2026 |
| alsa-topology · amzn 2023 | 1.2.7.2-1.amzn2023.0.4 | ALAS2023-2026-2082 | Aug 31, 2026 |
| alsa-ucm · amzn 2023 | 1.2.7.2-1.amzn2023.0.4 | ALAS2023-2026-2082 | Aug 31, 2026 |
| libasound2 · Ubuntu 22.04.1 LTS (jammy) | 1.2.6.1-1ubuntu1.2 | libasound2 1.2.6.1-1ubuntu1.2 | Jul 18, 2026 |
| libasound2-data · Ubuntu 22.04.1 LTS (jammy) | 1.2.6.1-1ubuntu1.2 | libasound2-data 1.2.6.1-1ubuntu1.2 | Jul 18, 2026 |
| libasound2-data · Ubuntu 24.04.5 LTS (noble) | 1.2.11-1ubuntu0.3 | libasound2-data 1.2.11-1ubuntu0.3 | Jul 18, 2026 |
| libasound2-data · Ubuntu 26.04.1 LTS (resolute) | 1.2.15.3-1ubuntu1.1 | libasound2-data 1.2.15.3-1ubuntu1.1 | Jun 22, 2026 |
| libasound2-plugin-smixer · Ubuntu 22.04.1 LTS (jammy) | 1.2.6.1-1ubuntu1.2 | libasound2-plugin-smixer 1.2.6.1-1ubuntu1.2 | Jul 18, 2026 |
| libasound2-plugin-smixer · Ubuntu 24.04.5 LTS (noble) | 1.2.11-1ubuntu0.3 | libasound2-plugin-smixer 1.2.11-1ubuntu0.3 | Jul 18, 2026 |
| libasound2-plugin-smixer · Ubuntu 26.04.1 LTS (resolute) | 1.2.15.3-1ubuntu1.1 | libasound2-plugin-smixer 1.2.15.3-1ubuntu1.1 | Jun 22, 2026 |
| libasound2t64 · Ubuntu 24.04.5 LTS (noble) | 1.2.11-1ubuntu0.3 | libasound2t64 1.2.11-1ubuntu0.3 | Jul 18, 2026 |
| libasound2t64 · Ubuntu 26.04.1 LTS (resolute) | 1.2.15.3-1ubuntu1.1 | libasound2t64 1.2.15.3-1ubuntu1.1 | Jun 22, 2026 |
| libatopology2 · Ubuntu 22.04.1 LTS (jammy) | 1.2.6.1-1ubuntu1.2 | libatopology2 1.2.6.1-1ubuntu1.2 | Jul 18, 2026 |
| libatopology2t64 · Ubuntu 24.04.5 LTS (noble) | 1.2.11-1ubuntu0.3 | libatopology2t64 1.2.11-1ubuntu0.3 | Jul 18, 2026 |
| libatopology2t64 · Ubuntu 26.04.1 LTS (resolute) | 1.2.15.3-1ubuntu1.1 | libatopology2t64 1.2.15.3-1ubuntu1.1 | Jun 22, 2026 |
Patch Radar data is free to use with attribution. Terms and how to credit it.
Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.