CVE-2024-42288

Local kernel corruption via misdirected ICB size write

Published Aug 17, 2024 · Updated Aug 5, 2026

Memory corruption in the qla2xxx SCSI driver in Linux 4.20 and later allows local users to corrupt kernel memory during HBA initialization. The exchange-offload setup writes an ICB count through the wrong pointer, overwriting init_cb_size and driving out-of-bounds zeroing and mismatched DMA frees. Reachability requires a Fibre Channel HBA in target or dual mode with exchange offload and counts above 2048; reinitialization can expose kernel memory, panic the host, or enable kernel-level code execution.

CVSS severity7.8
High
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory corruption in the qla2xxx SCSI driver in Linux 4.20 and later allows local users to corrupt kernel memory during HBA initialization. The exchange-offload setup writes an ICB count through the wrong pointer, overwriting init_cb_size and driving out-of-bounds zeroing and mismatched DMA frees. Reachability requires a Fibre Channel HBA in target or dual mode with exchange offload and counts above 2048; reinitialization can expose kernel memory, panic the host, or enable kernel-level code execution.

The record

CVE
CVE-2024-42288
Published
Aug 17, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-787, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 17, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 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=0645cb8350cdb60bfbf91caa722984b81c215add <2a15b59a2c5afac89696e44acf5bbfc0599c6c5e
  2. Affected versionversion=0645cb8350cdb60bfbf91caa722984b81c215add <571d7f2a08836698c2fb0d792236424575b9829b
  3. Affected versionversion=0645cb8350cdb60bfbf91caa722984b81c215add <8192c533e89d9fb69b2490398939236b78cda79b
  4. Affected versionversion=0645cb8350cdb60bfbf91caa722984b81c215add <87db8d7b7520e99de71791260989f06f9c94953d
  5. Affected versionversion=0645cb8350cdb60bfbf91caa722984b81c215add <b0302ffc74123b6a99d7d1896fcd9b2e4072d9ce
  6. Affected versionversion=0645cb8350cdb60bfbf91caa722984b81c215add <c03d740152f78e86945a75b2ad541bf972fab92a
  7. Affected versionversion=0645cb8350cdb60bfbf91caa722984b81c215add <dae67169cb35a37ecccf60cfcd6bf93a1f4f5efb
  8. Affected versionversion=4.20

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=0645cb8350cdb60bfbf91caa722984b81c215add <2a15b59a2c5afac89696e44acf5bbfc0599c6c5e; version=0645cb8350cdb60bfbf91caa722984b81c215add <571d7f2a08836698c2fb0d792236424575b9829b; version=0645cb8350cdb60bfbf91caa722984b81c215add <8192c533e89d9fb69b2490398939236b78cda79b; version=0645cb8350cdb60bfbf91caa722984b81c215add <87db8d7b7520e99de71791260989f06f9c94953d; version=0645cb8350cdb60bfbf91caa722984b81c215add <b0302ffc74123b6a99d7d1896fcd9b2e4072d9ce; version=0645cb8350cdb60bfbf91caa722984b81c215add <c03d740152f78e86945a75b2ad541bf972fab92a; version=0645cb8350cdb60bfbf91caa722984b81c215add <dae67169cb35a37ecccf60cfcd6bf93a1f4f5efb; version=4.20

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
7.8Linux CNACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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

CWE-787Out-of-bounds Write
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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