Linux Kernel up to 7.2.4 qla2xxx get_flash_version race condition

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.7$0-$5k0.00

Summaryinfo

A vulnerability categorized as very critical has been discovered in Linux Kernel up to 7.2.4. This vulnerability affects the function get_flash_version of the component qla2xxx. The manipulation results in race condition. This vulnerability is reported as CVE-2026-89855. The attack can be launched remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 7.2.4. It has been classified as very critical. Affected is the function get_flash_version of the component qla2xxx. The manipulation with an unknown input leads to a race condition vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Serialize flash version read in reset handler The "update cache versions without reset" sysfs reset operation (0x20261) calls get_flash_version(), which reads hardware flash registers, without holding ha->optrom_mutex. The VPD update path serializes the same call under optrom_mutex, so this reset path can interleave its flash register accesses with a concurrent VPD or optrom flash operation and corrupt the reads. Hold ha->optrom_mutex across the get_flash_version() call to match the VPD update path.

The advisory is shared for download at git.kernel.org. This vulnerability is traded as CVE-2026-89855 since 09/11/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. Additional levels of successful authentication are required for exploitation. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (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 f1fc052f2a5890ea6dba80d50254dd6258b13386/31bf2714abbb0aa5a8a03d15038f8920e1c74b21/ae979c549cba684e67b6c047140f3a8d2439b298/9cef42a073a0bdeee7fb1b47221cda222d330d2a/75460967619eda720c9a03767729157ffd171d8c/8d116137119371349fb09685fe05413d8fc92efe/33735490789e5417851752974c0b1d23125559cd/f606ed93de0c4f1e7e3618779e9fad731455314a is able to eliminate this problem. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.1
VulDB Meta Temp Score: 8.7

VulDB Base Score: 9.1
VulDB Temp Score: 8.7
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: 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: f1fc052f2a5890ea6dba80d50254dd6258b13386/31bf2714abbb0aa5a8a03d15038f8920e1c74b21/ae979c549cba684e67b6c047140f3a8d2439b298/9cef42a073a0bdeee7fb1b47221cda222d330d2a/75460967619eda720c9a03767729157ffd171d8c/8d116137119371349fb09685fe05413d8fc92efe/33735490789e5417851752974c0b1d23125559cd/f606ed93de0c4f1e7e3618779e9fad731455314a

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-2026-89855 (🔒)
GCVE (CVE): GCVE-0-2026-89855
GCVE (VulDB): GCVE-100-405672

Entryinfo

Created: 09/16/2026 13:38
Changes: 09/16/2026 13:38 (59)
Complete: 🔍
Cache ID: 216::103

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