VDB-269230 · CVE-2022-48753 · GCVE-0-2022-48753

Linux Kernel up to 5.16.4 block kobject_init_and_add memory leak

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5.4	$0-$5k	0.00

Summaryinfo

A vulnerability labeled as critical has been found in Linux Kernel up to 5.16.4. Impacted is the function kobject_init_and_add of the component block. Executing a manipulation can lead to memory leak. This vulnerability is registered as CVE-2022-48753. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in Linux Kernel up to 5.16.4 and classified as critical. This vulnerability affects the function kobject_init_and_add of the component block. The manipulation with an unknown input leads to a memory leak vulnerability. The CWE definition for the vulnerability is CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. As an impact it is known to affect availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: block: fix memory leak in disk_register_independent_access_ranges kobject_init_and_add() takes reference even when it fails. According to the doc of kobject_init_and_add() If this function returns an error, kobject_put() must be called to properly clean up the memory associated with the object. Fix this issue by adding kobject_put(). Callback function blk_ia_ranges_sysfs_release() in kobject_put() can handle the pointer "iars" properly.

The advisory is available at git.kernel.org. This vulnerability was named CVE-2022-48753. Technical details are known, but there is no available exploit.

Upgrading to version 5.16.5 eliminates this vulnerability. Applying the patch fe4214a07e0b/83114df32ae7 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

Type

Operating System

Vendor

Linux

Name

Kernel

Version

License

open-source

Website

Vendor: https://www.kernel.org/

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

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

NVD Base Score: 5.5
NVD Vector: 🔍

CNA Base Score: 5.3
CNA Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Kernel 5.16.5
Patch: fe4214a07e0b/83114df32ae7

Timelineinfo

06/20/2024 🔍
06/20/2024 +0 days 🔍
10/30/2024 +132 days 🔍

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-48753 (🔍)
GCVE (CVE): GCVE-0-2022-48753
GCVE (VulDB): GCVE-100-269230

Entryinfo

Created: 06/20/2024 14:02
Updated: 10/30/2024 19:02
Changes: 06/20/2024 14:02 (57), 09/18/2024 18:08 (12), 10/30/2024 19:02 (11)
Complete: 🔍
Cache ID: 216::103