CVE-2022-50140

What it is

In the Linux kernel, the following vulnerability has been resolved: memstick/ms_block: Fix a memory leak 'erased_blocks_bitmap' is never freed. As it is allocated at the same time as 'used_blocks_bitmap', it is likely that it should be freed also at the same time. Add the corresponding bitmap_free() in msb_data_clear().

At a glance

Exploitability

Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.

Exploit odds

0.2% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2025-06-18 11:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 05:22 UTC Last updatedMost recent change to the record

Details

Published

2025-06-18 11:15 UTC

Last modified

2026-06-17 05:22 UTC

Exploit probability

0.2% · EPSS, next 30 days

Weakness

CWE-401

Record status

Analyzed

Affected

• Linux Kernel < 4.14.291
• Linux Kernel < 4.19.256
• Linux Kernel < 5.4.211
• Linux Kernel < 5.10.137
• Linux Kernel < 5.15.61
• Linux Kernel < 5.18.18
• Linux Kernel < 5.19.2

Attack profile CVSS 3.1 · 5.5

Attack vector

Local

Complexity

Low

Privileges needed

Low

User interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High