Improper Handling of Length Parameter Inconsistency Affecting kernel-zfcpdump-devel-matched package, versions *


Severity

Recommended
low

Based on CentOS security rating.

Threat Intelligence

EPSS
0.21% (11th percentile)

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  • Snyk IDSNYK-CENTOS10-KERNELZFCPDUMPDEVELMATCHED-18952256
  • published19 Aug 2026
  • disclosed15 Aug 2026

Introduced: 15 Aug 2026

NewCVE-2026-72155  (opens in a new tab)
CWE-130  (opens in a new tab)

How to fix?

There is no fixed version for Centos:10 kernel-zfcpdump-devel-matched.

NVD Description

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

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

mtd: spi-nor: swp: Improve locking user experience

In the case of the first block being locked (or the few first blocks), if the user want to fully unlock the device it has two possibilities:

  • either it asks to unlock the entire device, and this works;
  • or it asks to unlock just the block(s) that are currently locked, which fails.

It fails because the conditions "can_be_top" and "can_be_bottom" are true. Indeed, in this case, we unlock everything, so the TB bit does not matter. However in the current implementation, use_top would be true (as this is the favourite option) and lock_len, which in practice should be reduced down to 0, is set to "nor->params->size - (ofs + len)" which is a positive number. This is wrong.

An easy way is to simply add an extra condition. In the unlock() path, if we can achieve the same result from both sides, it means we unlock everything and lock_len must simply be 0. A comment is added to clarify that logic.

CVSS Base Scores

version 3.1