CVE-2026-31775ALSA: ctxfi: Don't enumerate SPDIF1 at DAIO initialization
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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In the Linux kernel, the following vulnerability has been resolved: ALSA: ctxfi: Don't enumerate SPDIF1 at DAIO initialization The recent refactoring of xfi driver changed the assignment of atc->daios[] at atc_get_resources(); now it loops over all enum DAIOTYP entries while it looped formerly only a part of them. The problem is that the last entry, SPDIF1, is a special type that is used only for hw20k1 CTSB073X model (as a replacement of SPDIFIO), and there is no corresponding definition for hw20k2. Due to the lack of the info, it caused a kernel crash on hw20k2, which was already worked around by the commit b045ab3dff97 ("ALSA: ctxfi: Fix missing SPDIFI1 index handling"). This patch addresses the root cause of the regression above properly, simply by skipping the incorrect SPDIF1 type in the parser loop. For making the change clearer, the code is slightly arranged, too.
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Analyzed
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from a2dbaeb5c61ef110ceefe0d48fe94d428d3bcf16 before a79c4c42057818bd9de45d2627464b4f0e02196a; from a2dbaeb5c61ef110ceefe0d48fe94d428d3bcf16 before 75dc1980cf48826287e43dc7a49e310c6691f97e; 88cc09bb70651917ef8b7095a05a21a9ca014c94; from 6.18.57 before 6.19 | CNA record |
linux linux_kernel linux:linux_kernel | from 6.19 before 6.19.12; 7.0; 7.0; 7.0; 7.0; 7.0; 7.0 | NVD |
References
- https://git.kernel.org/stable/c/a79c4c42057818bd9de45d2627464b4f0e02196apatch
- https://git.kernel.org/stable/c/75dc1980cf48826287e43dc7a49e310c6691f97epatch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.