CVE-2025-40106 Affecting kernel-zfcpdump package, versions <6.12.0-160000.26.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.07% (21st percentile)

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  • Snyk IDSNYK-SLES1600-KERNELZFCPDUMP-15430833
  • published6 Mar 2026
  • disclosed27 Feb 2026

Introduced: 27 Feb 2026

NewCVE-2025-40106  (opens in a new tab)

How to fix?

Upgrade SLES:16.0.0 kernel-zfcpdump to version 6.12.0-160000.26.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-zfcpdump package and not the kernel-zfcpdump package as distributed by SLES. See How to fix? for SLES:16.0.0 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

comedi: fix divide-by-zero in comedi_buf_munge()

The comedi_buf_munge() function performs a modulo operation async-&gt;munge_chan %= async-&gt;cmd.chanlist_len without first checking if chanlist_len is zero. If a user program submits a command with chanlist_len set to zero, this causes a divide-by-zero error when the device processes data in the interrupt handler path.

Add a check for zero chanlist_len at the beginning of the function, similar to the existing checks for !map and CMDF_RAWDATA flag. When chanlist_len is zero, update munge_count and return early, indicating the data was handled without munging.

This prevents potential kernel panics from malformed user commands.

CVSS Base Scores

version 3.1