Linux Kernel up to 6.8.4 nfsd_rename deadlock

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Linux Kernel up to 6.8.4. Impacted is the function nfsd_rename. This manipulation causes deadlock. This vulnerability is handled as CVE-2024-35914. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 6.8.4 and classified as critical. Affected by this vulnerability is the function nfsd_rename. The manipulation with an unknown input leads to a deadlock vulnerability. The CWE definition for the vulnerability is CWE-833. The product contains multiple threads or executable segments that are waiting for each other to release a necessary lock, resulting in deadlock. As an impact it is known to affect availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: nfsd: Fix error cleanup path in nfsd_rename() Commit a8b0026847b8 ("rename(): avoid a deadlock in the case of parents having no common ancestor") added an error bail out path. However this path does not drop the remount protection that has been acquired. Fix the cleanup path to properly drop the remount protection.

It is possible to read the advisory at git.kernel.org. This vulnerability is known as CVE-2024-35914 since 05/17/2024. Technical details of the vulnerability are known, but there is no available exploit.

Upgrading to version 6.8.5 eliminates this vulnerability. Applying the patch 331e125e02c0/9fe6e9e7b589 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.

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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: 5.6
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Deadlock
CWE: CWE-833 / CWE-404
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 6.8.5
Patch: 331e125e02c0/9fe6e9e7b589

Timelineinfo

05/17/2024 🔍
05/19/2024 +2 days 🔍
05/19/2024 +0 days 🔍
09/23/2025 +492 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2024-35914 (🔍)
GCVE (CVE): GCVE-0-2024-35914
GCVE (VulDB): GCVE-100-265171

Entryinfo

Created: 05/19/2024 13:14
Updated: 09/23/2025 17:30
Changes: 05/19/2024 13:14 (57), 09/23/2025 17:30 (12)
Complete: 🔍
Cache ID: 216::103

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