Answer in brief
CVE-2026-23076 records a Unknown severity vulnerability in ALSA: ctxfi: Fix potential OOB access in audio mixer handling. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=8cc72361481f00253f1e468ade5795427386d593 <6524205326e0c1a21263b5c14e48e14ef7e449ae || >=8cc72361481f00253f1e468ade5795427386d593 <afca7ff5d5d4d63a1acb95461f55ca9a729feedf || >=8cc72361481f00253f1e468ade5795427386d593 <8c1d09806e1441bc6a54b9a4f2818918046d5174 || >=8cc72361481f00253f1e468ade5795427386d593 <a8c42d11b0526a89192bd2f79facb4c60c8a1f38 || >=8cc72361481f00253f1e468ade5795427386d593 <d77ba72558cd66704f0fb7e0969f697e87c0f71c || >=8cc72361481f00253f1e468ade5795427386d593 <873e2360d247eeee642878fcc3398babff7e387c || >=8cc72361481f00253f1e468ade5795427386d593 <61006c540cbdedea83b05577dc7fb7fa18fe1276 | 6524205326e0c1a21263b5c14e48e14ef7e449ae, afca7ff5d5d4d63a1acb95461f55ca9a729feedf, 8c1d09806e1441bc6a54b9a4f2818918046d5174, a8c42d11b0526a89192bd2f79facb4c60c8a1f38, d77ba72558cd66704f0fb7e0969f697e87c0f71c, 873e2360d247eeee642878fcc3398babff7e387c, 61006c540cbdedea83b05577dc7fb7fa18fe1276 |
| Linux/Linuxgeneric | 2.6.31 | Not reported |
Published upstream
Feb 4, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 19, 2026
In the Linux kernel, the following vulnerability has been resolved: ALSA: ctxfi: Fix potential OOB access in audio mixer handling In the audio mixer handling code of ctxfi driver, the conf field is used as a kind of loop index, and it's referred in the index callbacks (amixer_index() and sum_index()). As spotted recently by fuzzers, the current code causes OOB access at those functions. | UBSAN: array-index-out-of-bounds in /build/reproducible-path/linux-6.17.8/sound/pci/ctxfi/ctamixer.c:347:48 | index 8 is out of range for type 'unsigned char [8]' After the analysis, the cause was found to be the lack of the proper (re-)initialization of conj field. This patch addresses those OOB accesses by adding the proper initializations of the loop indices.
Quoted source text, attributed separately from HOL analysis.