CVE-2022-50328
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-15

Last updated on: 2025-12-04

Assigner: kernel.org

Description
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.
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2025-09-15
Last Modified
2025-12-04
Generated
2026-06-16
AI Q&A
2025-09-15
EPSS Evaluated
2026-06-14
NVD
CVE-2022-50328
Affected Vendors & Products
Showing 4 associated CPEs
Vendor Product Version / Range
linux linux_kernel to 5.10.150 (exc)
linux linux_kernel From 5.11 (inc) to 5.15.75 (exc)
linux linux_kernel From 5.16 (inc) to 5.19.17 (exc)
linux linux_kernel From 6.0 (inc) to 6.0.3 (exc)
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-416 The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
Attack-Flow Graph
AI Quick Actions
Instant insights powered by AI
Executive Summary

This vulnerability is a use-after-free issue in the Linux kernel's jbd2 component, specifically in the function 'jbd2_fc_wait_bufs'. The problem occurs because the code uses a buffer head ('bh') after its reference count has been decremented and potentially freed, which can lead to accessing freed memory. The fix involves checking if the buffer is up-to-date before decrementing the buffer head's reference count to avoid this unsafe use.

Impact Analysis

The use-after-free vulnerability could lead to undefined behavior such as system crashes, data corruption, or potential escalation of privileges if exploited. It affects the stability and security of the Linux kernel's journaling subsystem, which could impact system reliability and security.

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2022-50328. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart