CVE-2025-38332

Kernel panic via fortified BIOS string concatenation

Published Jul 10, 2025 · Updated Jun 11, 2026

Denial of service in the Linux kernel lpfc driver allows local users to panic the kernel while adapter BIOS data is logged. In drivers/scsi/lpfc/lpfc_sli.c, a zeroed BIOSVersion buffer is passed to fortified strlcat(), whose object-size check reports an overflow and triggers the panic despite the correct size argument. Reachability requires execution of the lpfc BIOS-version logging path in a FORTIFY-enabled kernel; the consequence is a host-wide service interrupt rather than data disclosure or modification.

CVSS severity5.5
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in the Linux kernel lpfc driver allows local users to panic the kernel while adapter BIOS data is logged. In drivers/scsi/lpfc/lpfc_sli.c, a zeroed BIOSVersion buffer is passed to fortified strlcat(), whose object-size check reports an overflow and triggers the panic despite the correct size argument. Reachability requires execution of the lpfc BIOS-version logging path in a FORTIFY-enabled kernel; the consequence is a host-wide service interrupt rather than data disclosure or modification.

The record

CVE
CVE-2025-38332
Published
Jul 10, 2025
Updated
Jun 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 10, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.2
  2. Affected versionversion=b3b4f3e1d575fe142fd437158425c2359b695ff1 <003baa7a1a152576d744bd655820449bbdb0248e
  3. Affected versionversion=b3b4f3e1d575fe142fd437158425c2359b695ff1 <2f63bf0d2b146956a2f2ff3b25cee71019e64561
  4. Affected versionversion=b3b4f3e1d575fe142fd437158425c2359b695ff1 <34c0a670556b24d36c9f8934227edb819ca5609e
  5. Affected versionversion=b3b4f3e1d575fe142fd437158425c2359b695ff1 <75ea8375c5a83f46c47bfb3de6217c7589a8df93
  6. Affected versionversion=b3b4f3e1d575fe142fd437158425c2359b695ff1 <ac7bfaa099ec3e4d7dfd0ab9726fc3bc7911365d
  7. Affected versionversion=b3b4f3e1d575fe142fd437158425c2359b695ff1 <ae82eaf4aeea060bb736c3e20c0568b67c701d7d
  8. Affected versionversion=b3b4f3e1d575fe142fd437158425c2359b695ff1 <b699bda5db818b684ff62d140defd6394f38f3d6
  9. Affected versionversion=b3b4f3e1d575fe142fd437158425c2359b695ff1 <d34f2384d6df11a6c67039b612c2437f46e587e8

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.2; version=b3b4f3e1d575fe142fd437158425c2359b695ff1 <003baa7a1a152576d744bd655820449bbdb0248e; version=b3b4f3e1d575fe142fd437158425c2359b695ff1 <2f63bf0d2b146956a2f2ff3b25cee71019e64561; version=b3b4f3e1d575fe142fd437158425c2359b695ff1 <34c0a670556b24d36c9f8934227edb819ca5609e; version=b3b4f3e1d575fe142fd437158425c2359b695ff1 <75ea8375c5a83f46c47bfb3de6217c7589a8df93; version=b3b4f3e1d575fe142fd437158425c2359b695ff1 <ac7bfaa099ec3e4d7dfd0ab9726fc3bc7911365d; version=b3b4f3e1d575fe142fd437158425c2359b695ff1 <ae82eaf4aeea060bb736c3e20c0568b67c701d7d; version=b3b4f3e1d575fe142fd437158425c2359b695ff1 <b699bda5db818b684ff62d140defd6394f38f3d6; version=b3b4f3e1d575fe142fd437158425c2359b695ff1 <d34f2384d6df11a6c67039b612c2437f46e587e8

Published CVSS scores

7.0Oracle LinuxCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
6.8SUSECVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
5.5SUSECVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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