Linux Kernel up to 6.11.6 nilfs2 __block_write_begin_int denial of service

CVSS Meta Temp Score
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Linux Kernel up to 6.11.6. Affected is the function __block_write_begin_int of the component nilfs2. The manipulation leads to denial of service. This vulnerability is uniquely identified as CVE-2024-50230. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.11.6 and classified as problematic. This issue affects the function __block_write_begin_int of the component nilfs2. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is integrity, and availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix kernel bug due to missing clearing of checked flag Syzbot reported that in directory operations after nilfs2 detects filesystem corruption and degrades to read-only, __block_write_begin_int(), which is called to prepare block writes, may fail the BUG_ON check for accesses exceeding the folio/page size, triggering a kernel bug. This was found to be because the "checked" flag of a page/folio was not cleared when it was discarded by nilfs2's own routine, which causes the sanity check of directory entries to be skipped when the directory page/folio is reloaded. So, fix that. This was necessary when the use of nilfs2's own page discard routine was applied to more than just metadata files.

It is possible to read the advisory at git.kernel.org. The identification of this vulnerability is CVE-2024-50230 since 10/21/2024. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 211777 (Debian dsa-5818 : affs-modules-6.1.0-21-4kc-malta-di - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.19.323, 5.4.285, 5.10.229, 5.15.171, 6.1.116, 6.6.60 or 6.11.7 eliminates this vulnerability. Applying the patch 994b2fa13a6c/64afad73e462/aa0cee46c5d3/f05dbebb8ee3/cd0cdb51b152/f2f1fa446676/56c6171932a7/41e192ad2779 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 Tenable (211777) and CERT Bund (WID-SEC-2024-3397). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • Open Source eCryptfs
  • Siemens SIMATIC S7
  • SUSE openSUSE
  • RESF Rocky Linux
  • Dell NetWorker
  • Dell Avamar
  • IBM QRadar SIEM

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 6.1

VulDB Base Score: 4.6
VulDB Temp Score: 4.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Denial of service
CWE: 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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Nessus ID: 211777
Nessus Name: Debian dsa-5818 : affs-modules-6.1.0-21-4kc-malta-di - security update

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 4.19.323/5.4.285/5.10.229/5.15.171/6.1.116/6.6.60/6.11.7
Patch: 994b2fa13a6c/64afad73e462/aa0cee46c5d3/f05dbebb8ee3/cd0cdb51b152/f2f1fa446676/56c6171932a7/41e192ad2779

Timelineinfo

10/21/2024 🔍
11/09/2024 +19 days 🔍
11/09/2024 +0 days 🔍
10/02/2025 +327 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2024-50230 (🔍)
GCVE (CVE): GCVE-0-2024-50230
GCVE (VulDB): GCVE-100-283667
CERT Bund: WID-SEC-2024-3397 - Linux Kernel: Mehrere Schwachstellen ermöglichen nicht spezifizierten Angriff

Entryinfo

Created: 11/09/2024 12:13
Updated: 10/02/2025 04:07
Changes: 11/09/2024 12:13 (59), 11/25/2024 08:38 (2), 07/16/2025 21:28 (7), 10/02/2025 04:07 (12)
Complete: 🔍
Cache ID: 216::103

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

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