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Review reviewHigh

CVE-2025-38204

Linux Linux, linux kernel, debian linux

In the Linux kernel, the following vulnerability has been resolved: jfs: fix array-index-out-of-bounds read in add_missing_indices stbl is s8 but it must contain offsets into slot which can go from 0 to 127. Added a bound check for that error and return -EIO if the check fails. Also make jfs_readdir return with error if add_missing_indices returns with an error.

CVSS
7.1
EPSS
0.16%
5.52% percentile
CISA KEV
Not listed
Published
2025.07.04
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.16%
Technical severityCVSS 7.1

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: jfs: fix array-index-out-of-bounds read in add_missing_indices stbl is s8 but it must contain offsets into slot which can go from 0 to 127. Added a bound check for that error and return -EIO if the check fails. Also make jfs_readdir return with error if add_missing_indices returns with an error.

Affected product and versions

Product
Linux Linux, linux kernel, debian linux
Affected versions
>= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 81af4b34fd72d390d7f237c6a545cc6d09707956, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < bfa4655d28f338e68d345aed80d19be7999bbce2, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 44618bee303bed151ef3a525ff79fbd7689593b5, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < c8399564a58fb6ea2ff21a6fd278417943cb51a5, >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 5dff41a86377563f7a2b968aae00d25b4ceb37c9, >= 2.6.12, < 5.4.295, >= 5.5 < 5.10.239, >= 5.11 < 5.15.186, >= 5.16 < 6.15.4, 11.0
Fixed versions
5.4.295, 5.10.239, 5.15.186, 6.15.4

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel, debian linux 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:N/A:H
CWE
CWE-125