CVE-2026-23076

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.

CVSS 3.1

7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

EPSS

0.2% chance of exploitation in the next 30 days; higher than 7% of CVEs (scores of 2026-10-25)

CWE

CWE-125

Published

2026-02-04

Modified

2026-10-19

Record from

the NVD, synced 2026-10-21

Affected

• linux:linux_kernel

References

• https://git.kernel.org/stable/c/61006c540cbdedea83b05577dc7fb7fa18fe1276
• https://git.kernel.org/stable/c/6524205326e0c1a21263b5c14e48e14ef7e449ae
• https://git.kernel.org/stable/c/873e2360d247eeee642878fcc3398babff7e387c
• https://git.kernel.org/stable/c/8c1d09806e1441bc6a54b9a4f2818918046d5174
• https://git.kernel.org/stable/c/a8c42d11b0526a89192bd2f79facb4c60c8a1f38

Check your stackJSON