CVE-2026-89849

Wild pointer dereference via non-SCSI status confusion

Published Sep 16, 2026 · Updated Sep 16, 2026

Type confusion in Linux qla2xxx allows attackers to trigger a wild kernel pointer dereference via unexpected firmware status IOCBs. qla2x00_status_entry treats an unfiltered non-SCSI SRB as SRB_SCSI_CMD, so GET_CMD_SP reads an overlaid union member as a command pointer and can bypass null checks. The path requires qla2xxx adapter firmware to return STATUS_TYPE for a non-SCSI handle; the published record does not establish an attacker-controlled vector or a bounded system consequence.

CVSS severityUnavailable
Unscored
EPSS probabilityUnavailable
No score available in this record
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Type confusion in Linux qla2xxx allows attackers to trigger a wild kernel pointer dereference via unexpected firmware status IOCBs. qla2x00_status_entry treats an unfiltered non-SCSI SRB as SRB_SCSI_CMD, so GET_CMD_SP reads an overlaid union member as a command pointer and can bypass null checks. The path requires qla2xxx adapter firmware to return STATUS_TYPE for a non-SCSI handle; the published record does not establish an attacker-controlled vector or a bounded system consequence.

The record

CVE
CVE-2026-89849
Published
Sep 16, 2026
Updated
Sep 16, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 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=5.15
  2. Affected versionversion=dd30706e73b70d67e88fdaca688db7a3374fd5de <0f41d07d72f2245208c45374ca8d0a1846cad667
  3. Affected versionversion=dd30706e73b70d67e88fdaca688db7a3374fd5de <29f1f9ad9e354cd0b6e4f6fc75ba09162d6a04d9
  4. Affected versionversion=dd30706e73b70d67e88fdaca688db7a3374fd5de <8f0e31e7a41376abe7d6ca7cbee07fcf9de071e6
  5. Affected versionversion=dd30706e73b70d67e88fdaca688db7a3374fd5de <9204fb0888374083be74f799049649a17eab4191
  6. Affected versionversion=dd30706e73b70d67e88fdaca688db7a3374fd5de <b7418198b45b327194b97f856fe8ea8daa91f3fd
  7. Affected versionversion=dd30706e73b70d67e88fdaca688db7a3374fd5de <e38041b47c29316ba79b645e2ae0b713d216b1db
  8. Affected versionversion=dd30706e73b70d67e88fdaca688db7a3374fd5de <e93aa3c5125d9a4352ac0fa8ba4a7f8f87881805

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=5.15; version=dd30706e73b70d67e88fdaca688db7a3374fd5de <0f41d07d72f2245208c45374ca8d0a1846cad667; version=dd30706e73b70d67e88fdaca688db7a3374fd5de <29f1f9ad9e354cd0b6e4f6fc75ba09162d6a04d9; version=dd30706e73b70d67e88fdaca688db7a3374fd5de <8f0e31e7a41376abe7d6ca7cbee07fcf9de071e6; version=dd30706e73b70d67e88fdaca688db7a3374fd5de <9204fb0888374083be74f799049649a17eab4191; version=dd30706e73b70d67e88fdaca688db7a3374fd5de <b7418198b45b327194b97f856fe8ea8daa91f3fd; version=dd30706e73b70d67e88fdaca688db7a3374fd5de <e38041b47c29316ba79b645e2ae0b713d216b1db; version=dd30706e73b70d67e88fdaca688db7a3374fd5de <e93aa3c5125d9a4352ac0fa8ba4a7f8f87881805

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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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