Out-of-bounds Write Affecting kernel-zfcpdump-debuginfo package, versions <0:6.12.0-211.75.1.el10_2


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.21% (11th percentile)

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  • Snyk IDSNYK-RHEL10-KERNELZFCPDUMPDEBUGINFO-22438861
  • published12 Nov 2026
  • disclosed14 Oct 2026

Introduced: 14 Oct 2026

NewCVE-2026-98403  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade RHEL:10 kernel-zfcpdump-debuginfo to version 0:6.12.0-211.75.1.el10_2 or higher.
This issue was patched in RHSA-2026:99139.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-zfcpdump-debuginfo package and not the kernel-zfcpdump-debuginfo package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

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

s390/boot: Avoid IPL parameter append past command line

A command line may occupy all but the terminating byte of COMMAND_LINE_SIZE. In that case append_ipl_block_parm() passes a zero size to the IPL parameter conversion helpers and points the destination one byte past early_command_line. The helpers subtract one from the unsigned size and write the converted parameter outside the command line buffer.

Convert the IPL parameter in the command line parsing buffer first. A parameter beginning with '=' can then replace the existing command line regardless of its length, while other parameters are appended only when space remains.

CVSS Base Scores

version 3.1