Linux Kernel UFS ufshcd_compl_one_cqe null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.39

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Linux Kernel. This vulnerability affects the function ufshcd_compl_one_cqe of the component UFS. This manipulation causes null pointer dereference. This vulnerability is handled as CVE-2026-92479. It is possible to launch the attack on the local host. There is not any exploit available. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability classified as problematic was found in Linux Kernel (affected version unknown). Affected by this vulnerability is the function ufshcd_compl_one_cqe of the component UFS. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: Avoid NULL CQE dereference when reporting invalid tags The single-doorbell completion path can call ufshcd_compl_one_cqe() with a NULL CQE. If no command is associated with the completion tag, the warning message dereferences the CQE while reporting the error. Avoid that dereference and include the invalid tag in the warning.

The advisory is shared at git.kernel.org. This vulnerability is known as CVE-2026-92479 since 09/16/2026. The exploitation appears to be easy. An attack has to be approached locally. Technical details are known, but no exploit is available.

Applying the patch a769095d1d74ebac2b1474c56bbd29bb0b9ed5a7 is able to eliminate this problem.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
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: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

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

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: a769095d1d74ebac2b1474c56bbd29bb0b9ed5a7

Timelineinfo

09/16/2026 CVE reserved
09/17/2026 +1 days Advisory disclosed
09/17/2026 +0 days VulDB entry created
09/17/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-92479 (🔒)
GCVE (CVE): GCVE-0-2026-92479
GCVE (VulDB): GCVE-100-406981

Entryinfo

Created: 09/17/2026 22:23
Changes: 09/17/2026 22:23 (57)
Complete: 🔍
Cache ID: 216::103

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