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Case File

CVE-2022-50300

HIGH · CVSS 7.8 EPSS 0.15%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2025-09-15 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.8. It affects Linux.

CVE
CVE-2022-50300
Severity
HIGH
CVSS
7.8
EPSS
0.15%
Linux

Original NVD Description

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix extent map use-after-free when handling missing device in read_one_chunk Store the error code before freeing the extent_map. Though it's reference counted structure, in that function it's the first and last allocation so this would lead to a potential use-after-free. The error can happen eg. when chunk is stored on a missing device and the degraded mount option is missing. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=216721

Related CVEs

Other vulnerabilities affecting the same vendor(s)