Linux Kernel up to 5.10.149/5.15.74/5.19.16/6.0.2 jbd2 jbd2_fc_wait_bufs use after free

CVSS Meta Temp Score
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CTI Interest Score
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7.7$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Linux Kernel up to 5.10.149/5.15.74/5.19.16/6.0.2. Affected is the function jbd2_fc_wait_bufs of the component jbd2. The manipulation results in use after free. This vulnerability is cataloged as CVE-2022-50328. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.10.149/5.15.74/5.19.16/6.0.2. It has been classified as critical. Affected is the function jbd2_fc_wait_bufs of the component jbd2. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: jbd2: fix potential use-after-free in jbd2_fc_wait_bufs In 'jbd2_fc_wait_bufs' use 'bh' after put buffer head reference count which may lead to use-after-free. So judge buffer if uptodate before put buffer head reference count.

The advisory is available at git.kernel.org. This vulnerability is traded as CVE-2022-50328 since 09/15/2025. The exploitability is told to be easy. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 01/10/2026).

The vulnerability scanner Nessus provides a plugin with the ID 266163 (Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.15-2025-090 (ALASKERNEL-5.15-2025-090)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 5.10.150, 5.15.75, 5.19.17 or 6.0.3 eliminates this vulnerability. Applying the patch 1d4d16daec2a6689b6d3fbfc7d2078643adc6619/d11d2ded293976a1a0d9d9471827a44dc9e3c63f/2e6d9f381c1ed844531a577783fc352de7a44c8a/effd9b3c029ecdd853a11933dcf857f5a7ca8c3d/243d1a5d505d0b0460c9af0ad56ed4a56ef0bebd 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 (266163) and CERT Bund (WID-SEC-2025-2053). 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
  • IBM QRadar SIEM
  • SUSE openSUSE
  • Open Source Linux Kernel
  • RESF Rocky Linux
  • Dell Secure Connect Gateway
  • F5 F5OS

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.9
VulDB Meta Temp Score: 7.7

VulDB Base Score: 8.0
VulDB Temp Score: 7.6
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: Use after free
CWE: CWE-416 / CWE-119
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: 266163
Nessus Name: Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.15-2025-090 (ALASKERNEL-5.15-2025-090)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 5.10.150/5.15.75/5.19.17/6.0.3
Patch: 1d4d16daec2a6689b6d3fbfc7d2078643adc6619/d11d2ded293976a1a0d9d9471827a44dc9e3c63f/2e6d9f381c1ed844531a577783fc352de7a44c8a/effd9b3c029ecdd853a11933dcf857f5a7ca8c3d/243d1a5d505d0b0460c9af0ad56ed4a56ef0bebd

Timelineinfo

09/15/2025 Advisory disclosed
09/15/2025 +0 days CVE reserved
09/15/2025 +0 days VulDB entry created
01/10/2026 +117 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2022-50328 (🔒)
GCVE (CVE): GCVE-0-2022-50328
GCVE (VulDB): GCVE-100-324114
CERT Bund: WID-SEC-2025-2053 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 09/15/2025 18:23
Updated: 01/10/2026 18:36
Changes: 09/15/2025 18:23 (59), 10/02/2025 19:34 (2), 12/05/2025 09:17 (11), 12/28/2025 18:47 (7), 01/10/2026 18:36 (1)
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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