Review reviewHigh

CVE-2022-50518

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: parisc: Fix locking in pdc_iodc_print() firmware call Utilize pdc_lock spinlock to protect parallel modifications of the iodc_dbuf[] buffer, check length to prevent buffer overflow of iodc_dbuf[], drop the iodc_retbuf[] buffer and fix some wrong indentings.

CVSS
7.8
EPSS
0.13%
2.80% percentile
CISA KEV
Not listed
Published
2025.10.08
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.13%
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: parisc: Fix locking in pdc_iodc_print() firmware call Utilize pdc_lock spinlock to protect parallel modifications of the iodc_dbuf[] buffer, check length to prevent buffer overflow of iodc_dbuf[], drop the iodc_retbuf[] buffer and fix some wrong indentings.

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= ef1afd4d79f0479960ff36bb5fe6ec6eba1ebff2 < 04a603058e70b8b881bb7860b8bd649f931f2591, >= ef1afd4d79f0479960ff36bb5fe6ec6eba1ebff2 < 553bc5890ed96a8d006224c3a4673c47fee0d12a, >= ef1afd4d79f0479960ff36bb5fe6ec6eba1ebff2 < 7236aae5f81f3efbd93d0601e74fc05994bc2580, >= 24319896af06b84f965bcefa0f2d926b726ed05b, >= 2.6.24.5 < 2.6.25, >= 2.6.25, >= 2.6.25.1 < 6.0.18, >= 6.1 < 6.1.4, 2.6.25
Fixed versions
2.6.25, 6.0.18, 6.1.4

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-667
CVE-2022-50518 — Linux Linux, linux kernel | SECUFOCUS NOW