CVE-2026-23076

HIGH EPSS 2.7%
Published Feb 4, 20264mo ago · Modified Jun 17, 20261w ago
7.1 CVSS 3.1
High
Find Similar
Published Feb 4, 2026 4mo ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
7.1
Exploitability
1.8
Impact
5.2
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
2.7% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-125 Out-of-bounds Read Memory Safety

Affected Products 12

VendorProductVersionRange
linuxlinux_kernel*≥2.6.31  –  <5.10.249
linuxlinux_kernel*≥5.11  –  <5.15.199
linuxlinux_kernel*≥5.16  –  <6.1.162
linuxlinux_kernel*≥6.2  –  <6.6.122
linuxlinux_kernel*≥6.7  –  <6.12.68
linuxlinux_kernel*≥6.13  –  <6.18.8
linuxlinux_kernel6.19any
linuxlinux_kernel6.19any
linuxlinux_kernel6.19any
linuxlinux_kernel6.19any
linuxlinux_kernel6.19any
linuxlinux_kernel6.19any

References 7

  • git.kernel.org https://git.kernel.org/stable/c/61006c540cbdedea83b05577dc7fb7fa18fe1276
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6524205326e0c1a21263b5c14e48e14ef7e449ae
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/873e2360d247eeee642878fcc3398babff7e387c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8c1d09806e1441bc6a54b9a4f2818918046d5174
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a8c42d11b0526a89192bd2f79facb4c60c8a1f38
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/afca7ff5d5d4d63a1acb95461f55ca9a729feedf
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d77ba72558cd66704f0fb7e0969f697e87c0f71c
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/61006c540cbdedea83b05577dc7fb7fa18fe1276
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/6524205326e0c1a21263b5c14e48e14ef7e449ae
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/873e2360d247eeee642878fcc3398babff7e387c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8c1d09806e1441bc6a54b9a4f2818918046d5174
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a8c42d11b0526a89192bd2f79facb4c60c8a1f38
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/afca7ff5d5d4d63a1acb95461f55ca9a729feedf
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d77ba72558cd66704f0fb7e0969f697e87c0f71c
    Patch