Linux Kernel up to 6.16.3/6.17-rc2 scsi ufshcd_uic_cmd_compl state issue

CVSS Meta Temp Score
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability was found in Linux Kernel up to 6.16.3/6.17-rc2. It has been rated as critical. Impacted is the function ufshcd_uic_cmd_compl of the component scsi. This manipulation causes state issue. This vulnerability is handled as CVE-2025-39803. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical was found in Linux Kernel up to 6.16.3/6.17-rc2. Affected by this vulnerability is the function ufshcd_uic_cmd_compl of the component scsi. The manipulation with an unknown input leads to a state issue vulnerability. The CWE definition for the vulnerability is CWE-371. The impact remains unknown. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: core: Remove WARN_ON_ONCE() call from ufshcd_uic_cmd_compl() The UIC completion interrupt may be disabled while an UIC command is being processed. When the UIC completion interrupt is reenabled, an UIC interrupt is triggered and the WARN_ON_ONCE(!cmd) statement is hit. Hence this patch that removes this kernel warning.

It is possible to read the advisory at git.kernel.org. This vulnerability is known as CVE-2025-39803 since 04/16/2025. 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 01/11/2026).

Upgrading to version 6.16.4 or 6.17-rc3 eliminates this vulnerability. Applying the patch c0cc24c139e0f62859dbf88e050ba074cd93988f/e5203d89d59bfcbe1f348aa0d2dc4449a8ba644c is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at EUVD (EUVD-2025-29183) and CERT Bund (WID-SEC-2025-2053). Be aware that VulDB is the high quality source for vulnerability data.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • IBM QRadar SIEM
  • SUSE openSUSE
  • Open Source Linux Kernel
  • RESF Rocky Linux
  • Dell Secure Connect Gateway
  • F5 F5OS

Productinfo

Type

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Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.5

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔒

CVSSv2info

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

Exploitinginfo

Class: State issue
CWE: CWE-371
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

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 6.16.4/6.17-rc3
Patch: c0cc24c139e0f62859dbf88e050ba074cd93988f/e5203d89d59bfcbe1f348aa0d2dc4449a8ba644c

Timelineinfo

04/16/2025 CVE reserved
09/15/2025 +152 days Advisory disclosed
09/15/2025 +0 days VulDB entry created
01/11/2026 +118 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-39803 (🔒)
GCVE (CVE): GCVE-0-2025-39803
GCVE (VulDB): GCVE-100-323911
EUVD: 🔒
CERT Bund: WID-SEC-2025-2053 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 09/15/2025 15:57
Updated: 01/11/2026 12:26
Changes: 09/15/2025 15:57 (59), 09/15/2025 16:16 (1), 11/24/2025 19:42 (11), 01/02/2026 14:35 (7), 01/11/2026 12:26 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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