Linux Kernel up to 6.7.6 fbdev divide by zero

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CTI Interest Score
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4.4$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Linux Kernel up to 6.7.6. Impacted is an unknown function of the component fbdev. Executing a manipulation can lead to divide by zero. The identification of this vulnerability is CVE-2024-26778. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as problematic was found in Linux Kernel up to 6.7.6. This vulnerability affects an unknown code block of the component fbdev. The manipulation with an unknown input leads to a divide by zero vulnerability. The CWE definition for the vulnerability is CWE-369. The product divides a value by zero. As an impact it is known to affect availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: fbdev: savage: Error out if pixclock equals zero The userspace program could pass any values to the driver through ioctl() interface. If the driver doesn't check the value of pixclock, it may cause divide-by-zero error. Although pixclock is checked in savagefb_decode_var(), but it is not checked properly in savagefb_probe(). Fix this by checking whether pixclock is zero in the function savagefb_check_var() before info->var.pixclock is used as the divisor. This is similar to CVE-2022-3061 in i740fb which was fixed by commit 15cf0b8.

The advisory is shared for download at git.kernel.org. This vulnerability was named CVE-2024-26778 since 02/19/2024. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 237278 (Alibaba Cloud Linux 3 : 0075: cloud-kernel bugfix, enhancement and (ALINUX3-SA-2025:0075)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.19.308, 5.4.270, 5.10.211, 5.15.150, 6.1.80, 6.6.19, 6.7.7 or 6.8 eliminates this vulnerability. Applying the patch 224453de8505/84dce0f6a4cc/512ee6d6041e/8c54acf33e5a/070398d32c5f/bc3c2e58d73b/a9ca4e80d234/04e5eac8f3ab 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 (237278) and CERT Bund (WID-SEC-2024-0773). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • IBM InfoSphere Guardium
  • Oracle Linux
  • NetApp FAS
  • EMC Avamar
  • Oracle VM
  • NetApp AFF
  • Dell NetWorker
  • IBM Security Guardium
  • RESF Rocky Linux
  • Open Source Linux Kernel
  • SolarWinds Security Event Manager
  • Broadcom Brocade SANnav
  • IBM Business Automation Workflow
  • IBM Spectrum Protect Plus
  • IBM QRadar SIEM
  • Juniper Junos Space
  • IBM DB2
  • IBM Storage Scale System

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.5
VulDB Meta Temp Score: 4.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Divide by zero
CWE: CWE-369 / 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: 237278
Nessus Name: Alibaba Cloud Linux 3 : 0075: cloud-kernel bugfix, enhancement and (ALINUX3-SA-2025:0075)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 4.19.308/5.4.270/5.10.211/5.15.150/6.1.80/6.6.19/6.7.7/6.8
Patch: 224453de8505/84dce0f6a4cc/512ee6d6041e/8c54acf33e5a/070398d32c5f/bc3c2e58d73b/a9ca4e80d234/04e5eac8f3ab

Timelineinfo

02/19/2024 🔍
04/03/2024 +43 days 🔍
04/03/2024 +0 days 🔍
08/03/2025 +487 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2024-26778 (🔍)
GCVE (CVE): GCVE-0-2024-26778
GCVE (VulDB): GCVE-100-259264
CERT Bund: WID-SEC-2024-0773 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 04/03/2024 20:06
Updated: 08/03/2025 23:43
Changes: 04/03/2024 20:06 (57), 06/28/2024 13:04 (1), 02/27/2025 22:20 (12), 05/27/2025 13:43 (2), 08/03/2025 23:43 (7)
Complete: 🔍
Cache ID: 216::103

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