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CVE-2026-23076

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CVE-2026-23076

Published: Feb 4, 2026

Modified: May 11, 2026

PUBLISHED

Description

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.

VendorProductVersions

Linux

Linux

affected
8cc72361481f00253f1e468ade5795427386d593 - < 6524205326e0c1a21263b5c14e48e14ef7e449ae
affected
8cc72361481f00253f1e468ade5795427386d593 - < afca7ff5d5d4d63a1acb95461f55ca9a729feedf
affected
8cc72361481f00253f1e468ade5795427386d593 - < 8c1d09806e1441bc6a54b9a4f2818918046d5174
affected
8cc72361481f00253f1e468ade5795427386d593 - < a8c42d11b0526a89192bd2f79facb4c60c8a1f38
affected
8cc72361481f00253f1e468ade5795427386d593 - < d77ba72558cd66704f0fb7e0969f697e87c0f71c

+2 more versions

Linux

Linux

affected
2.6.31
unaffected
0 - < 2.6.31
unaffected
5.10.249 - <= 5.10.*
unaffected
5.15.199 - <= 5.15.*
unaffected
6.1.162 - <= 6.1.*

+4 more versions

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