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Review reviewHigh

CVE-2025-38456

Linux Linux, linux kernel, debian linux

In the Linux kernel, the following vulnerability has been resolved: ipmi:msghandler: Fix potential memory corruption in ipmi_create_user() The "intf" list iterator is an invalid pointer if the correct "intf->intf_num" is not found. Calling atomic_dec(&intf->nr_users) on and invalid pointer will lead to memory corruption. We don't really need to call atomic_dec() if we haven't called atomic_add_return() so update the if (intf->in_shutdown) path as well.

CVSS
7.8
EPSS
0.15%
5.16% percentile
CISA KEV
Not listed
Published
2025.07.26
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.15%
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: ipmi:msghandler: Fix potential memory corruption in ipmi_create_user() The "intf" list iterator is an invalid pointer if the correct "intf->intf_num" is not found. Calling atomic_dec(&intf->nr_users) on and invalid pointer will lead to memory corruption. We don't really need to call atomic_dec() if we haven't called atomic_add_return() so update the if (intf->in_shutdown) path as well.

Affected product and versions

Product
Linux Linux, linux kernel, debian linux
Affected versions
>= 8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82 < cbc1670297f675854e982d23c8583900ff0cc67a, >= 8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82 < e2d5c005dfc96fe857676d1d8ac46b29275cb89b, >= 8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82 < 9e0d33e75c1604c3fad5586ad4dfa3b2695a3950, >= 8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82 < 7c1a6ddb99858e7d68961f74ae27caeeeca67b6a, >= 8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82 < fa332f5dc6fc662ad7d3200048772c96b861cf6b, >= 5.19, >= 5.19 < 6.1.146, >= 6.2 < 6.6.99, >= 6.7 < 6.12.39, >= 6.13 < 6.15.7, 11.0
Fixed versions
6.1.146, 6.6.99, 6.12.39, 6.15.7

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:H/A:H
CWE
CWE-787