Linux Kernel up to 7.2.4 qla2xxx qla2x00_fw_state_show race condition

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00-

Summaryinfo

A vulnerability has been found in Linux Kernel up to 7.2.4 and classified as critical. This impacts the function qla2x00_fw_state_show of the component qla2xxx. This manipulation causes race condition. This vulnerability is tracked as CVE-2026-89850. The attack is possible to be carried out remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as critical was found in Linux Kernel up to 7.2.4. Affected by this vulnerability is the function qla2x00_fw_state_show of the component qla2xxx. The manipulation with an unknown input leads to a race condition vulnerability. The CWE definition for the vulnerability is CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. As an impact it is known to affect availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Don't query firmware state while chip is down qla2x00_fw_state_show() initializes rval to QLA_FUNCTION_FAILED and jumps to the out: label when the chip is down or EEH is busy. The out: block then re-issued qla2x00_get_firmware_state() because rval != QLA_SUCCESS, defeating the chip-down/EEH-busy guards and issuing a mailbox command (outside optrom_mutex) during ISP reset or PCI error recovery, which can hang the adapter. It also turned a normal in-lock mailbox failure into a second unsynchronized mailbox attempt. Make the out: fallback only mark the firmware state as unknown. The mailbox is now issued at most once, inside optrom_mutex, and only when the chip is up and not EEH-busy.

It is possible to read the advisory at git.kernel.org. This vulnerability is known as CVE-2026-89850 since 09/11/2026. The exploitation appears to be easy. The attack can be launched remotely. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around 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 178d984e8875292582e4295cf559b2b11d3c9325/cba780c01f72f8585ca81ad7304097f8b12ef339/22f44f77da496bc355479c08a0a9dbc9ad42ba42/b6a30baa29695fa0eaba4a3a04435a3c1a5cb63d/7bc2baed8a3d6a1e2a3f6b78d245f25d1e18a749/a194684853dceaa1d6b7a9a02bc12f479232ad9b/a6374b508893de15fee78583a95f5099d7812e85/e0cebe20dcffbed9c078fe30e2d18cd5046d9eff is able to eliminate this problem. The best possible mitigation is suggested to be upgrading to the latest version.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Race condition
CWE: CWE-362
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: 178d984e8875292582e4295cf559b2b11d3c9325/cba780c01f72f8585ca81ad7304097f8b12ef339/22f44f77da496bc355479c08a0a9dbc9ad42ba42/b6a30baa29695fa0eaba4a3a04435a3c1a5cb63d/7bc2baed8a3d6a1e2a3f6b78d245f25d1e18a749/a194684853dceaa1d6b7a9a02bc12f479232ad9b/a6374b508893de15fee78583a95f5099d7812e85/e0cebe20dcffbed9c078fe30e2d18cd5046d9eff

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-2026-89850 (🔒)
GCVE (CVE): GCVE-0-2026-89850
GCVE (VulDB): GCVE-100-405667

Entryinfo

Created: 09/16/2026 13:29
Changes: 09/16/2026 13:29 (59)
Complete: 🔍
Cache ID: 216::103

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