Linux Kernel up to 6.12.1 fbdev sh7760fb_alloc_mem memory leak

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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Linux Kernel up to 6.12.1. This vulnerability affects the function sh7760fb_alloc_mem of the component fbdev. Such manipulation leads to memory leak. This vulnerability is traded as CVE-2024-56746. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.12.1. It has been rated as critical. Affected by this issue is the function sh7760fb_alloc_mem of the component fbdev. The manipulation with an unknown input leads to a memory leak vulnerability. Using CWE to declare the problem leads to CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. Impacted is availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: fbdev: sh7760fb: Fix a possible memory leak in sh7760fb_alloc_mem() When information such as info->screen_base is not ready, calling sh7760fb_free_mem() does not release memory correctly. Call dma_free_coherent() instead.

The advisory is available at git.kernel.org. This vulnerability is handled as CVE-2024-56746 since 12/29/2024. The exploitation is known to be easy. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 216224 (Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2025-20100)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.19.325, 5.4.287, 5.10.231, 5.15.174, 6.1.120, 6.6.64, 6.11.11 or 6.12.2 eliminates this vulnerability. Applying the patch 0d3fb3b3e9d66f7b6346e3b90bc0ff48683539ce/d48cbfa90dce506030151915fa3346d67f964af4/29216bb390e36daeebef66abaa02d9751330252b/f4fbd70e15fafe36a7583954ce189aaf5536aeec/40f4326ed05a3b3537556ff2a844958b9e779a98/3dd9df8e5f34c6fc4217a7498c1fb3c352d4afc2/d10cd53e5a7fb3b7c6f83d4d9a5ea1d97a3ed9a5/bad37309c8b8bf1cfc893750df0951a804009ca0/f89d17ae2ac42931be2a0153fecbf8533280c927 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 (216224) and CERT Bund (WID-SEC-2024-3762). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Affected

  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • RESF Rocky Linux
  • Dell NetWorker
  • Dell Avamar
  • Red Hat OpenShift
  • IBM QRadar SIEM
  • Dell PowerProtect Data Domain
  • Open Source Linux Kernel
  • IBM DataPower Gateway
  • Dell Secure Connect Gateway

Productinfo

Type

Vendor

Name

Version

License

Website

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

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

Exploitinginfo

Class: Memory leak
CWE: CWE-401 / 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: 216224
Nessus Name: Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2025-20100)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 4.19.325/5.4.287/5.10.231/5.15.174/6.1.120/6.6.64/6.11.11/6.12.2
Patch: 0d3fb3b3e9d66f7b6346e3b90bc0ff48683539ce/d48cbfa90dce506030151915fa3346d67f964af4/29216bb390e36daeebef66abaa02d9751330252b/f4fbd70e15fafe36a7583954ce189aaf5536aeec/40f4326ed05a3b3537556ff2a844958b9e779a98/3dd9df8e5f34c6fc4217a7498c1fb3c352d4afc2/d10cd53e5a7fb3b7c6f83d4d9a5ea1d97a3ed9a5/bad37309c8b8bf1cfc893750df0951a804009ca0/f89d17ae2ac42931be2a0153fecbf8533280c927

Timelineinfo

12/29/2024 🔍
12/29/2024 +0 days 🔍
12/29/2024 +0 days 🔍
02/14/2026 +412 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2024-56746 (🔍)
GCVE (CVE): GCVE-0-2024-56746
GCVE (VulDB): GCVE-100-289754
CERT Bund: WID-SEC-2024-3762 - Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 12/29/2024 13:16
Updated: 02/14/2026 22:00
Changes: 12/29/2024 13:16 (59), 01/08/2025 09:13 (11), 02/13/2025 13:36 (2), 02/14/2026 22:00 (7)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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