Linux Kernel up to 7.2.4 qla2xxx qla2x00_get_firmware_state uninitialized pointer

CVSS Meta Temp Score
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CTI Interest Score
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4.1$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Linux Kernel up to 7.2.4. Impacted is the function qla2x00_get_firmware_state of the component qla2xxx. Such manipulation leads to uninitialized pointer. This vulnerability is traded as CVE-2026-89852. The attack may be launched remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Linux Kernel up to 7.2.4. It has been rated as problematic. Affected by this issue is the function qla2x00_get_firmware_state of the component qla2xxx. The manipulation with an unknown input leads to a uninitialized pointer vulnerability. Using CWE to declare the problem leads to CWE-824. The product accesses or uses a pointer that has not been initialized. Impacted is confidentiality. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Zero mailbox struct in qla2x00_get_firmware_state() The mbx_cmd_t is allocated on the stack but left uninitialized. qla2x00_mailbox_command() has several early-return paths (PCI permanent failure, device failed, EEH busy, ISP abort pending, mailbox access timeout, purge mbox) that return without writing the input mailbox registers back into mcp->mb[]. qla2x00_get_firmware_state() then unconditionally copies mcp->mb[1..6] (and mb[12]) into the caller's states[] array regardless of the return value. On such a failure the copied values are uninitialized kernel stack memory, which is then exposed to userspace via the fw_state and mpi_fw_state sysfs handlers. Zero the mailbox struct so a failed query yields deterministic zeroed state instead of leaking stack contents.

The advisory is available at git.kernel.org. This vulnerability is handled as CVE-2026-89852 since 09/11/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 09/16/2026).

Upgrading to version 5.10.270, 5.15.221, 6.1.188, 6.6.157, 6.12.110, 6.18.51, 7.2.5 or 7.3-rc1 eliminates this vulnerability. Applying the patch f8fc5cc6b3284506c6ab83c822c48133377668bb/f29695b1138ae2539c5cd6cdaba9b1b072aaa81a/13d645a2cdb224d27205368f3e3c68bb160daf97/2f847f06bb223aa895eea91fc9e5e2d6314038eb/1f49e861c18caf8eef7f0ad9a2c5034f88a6ba79/e6cfb1ee18336aab41a0941d6d3ea5009aaafc05/9f31de4d07e4cde91dfc24522993a5fbb4d67083/9efaa782845b4d5fb3e01242be0d06ebc7428d8f is able to eliminate this problem. The best possible mitigation is suggested to be upgrading to the latest version.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Version

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Uninitialized pointer
CWE: CWE-824 / CWE-908
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 5.10.270/5.15.221/6.1.188/6.6.157/6.12.110/6.18.51/7.2.5/7.3-rc1
Patch: f8fc5cc6b3284506c6ab83c822c48133377668bb/f29695b1138ae2539c5cd6cdaba9b1b072aaa81a/13d645a2cdb224d27205368f3e3c68bb160daf97/2f847f06bb223aa895eea91fc9e5e2d6314038eb/1f49e861c18caf8eef7f0ad9a2c5034f88a6ba79/e6cfb1ee18336aab41a0941d6d3ea5009aaafc05/9f31de4d07e4cde91dfc24522993a5fbb4d67083/9efaa782845b4d5fb3e01242be0d06ebc7428d8f

Timelineinfo

09/11/2026 CVE reserved
09/16/2026 +5 days Advisory disclosed
09/16/2026 +0 days VulDB entry created
09/16/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-89852 (🔒)
GCVE (CVE): GCVE-0-2026-89852
GCVE (VulDB): GCVE-100-405674

Entryinfo

Created: 09/16/2026 13:39
Changes: 09/16/2026 13:39 (59)
Complete: 🔍
Cache ID: 216::103

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