What’s Vulnerable › Vulnerabilities

CVE-2022-50465: ext4: fix leaking uninitialized memory in fast-commit journal

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-10-01 · updated 2026-06-17
• Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: ext4: fix leaking uninitialized memory in fast-commit journal When space at the end of fast-commit journal blocks is unused, make sure to zero it out so that uninitialized memory is not leaked to disk.

Affected products

• Linux kernel: from 5.10 before 5.10.163; from 5.11 before 5.15.87; from 5.16 before 6.0.18; from 6.1 before 6.1.4 — fixed in 5.10.163, 5.15.87, 6.0.18, 6.1.4

How to fix

Upgrade to a fixed version: Linux kernel 5.10.163, 5.15.87, 6.0.18, 6.1.4. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/594bc43b410316d70bb42aeff168837888d96810
• https://git.kernel.org/stable/c/7c1fb65e8ce85c281d2cba9c236f9edbbc4eaca6
• https://git.kernel.org/stable/c/871800770d7f2f952c7249ad52485c3564dab44e
• https://git.kernel.org/stable/c/b8b7922374b00a44137e5bcdd46ef86c8b065f27
• https://git.kernel.org/stable/c/d9ba03eb03dc2dccb5450de388ea46bdcaaf8348

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