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CVE-2022-49224: power: supply: ab8500: Fix memory leak in ab8500_fg_sysfs_init

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-02-26 · updated 2026-06-17
• Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: power: supply: ab8500: Fix memory leak in ab8500_fg_sysfs_init kobject_init_and_add() takes reference even when it fails. According to the doc of kobject_init_and_add()： If this function returns an error, kobject_put() must be called to properly clean up the memory associated with the object. Fix memory leak by calling kobject_put().

Affected products

• Linux kernel: from 4.9 before 4.9.311; from 4.10 before 4.14.276; from 4.15 before 4.19.238; from 4.20 before 5.4.189; from 5.5 before 5.10.110; from 5.11 before 5.15.33 — fixed in 4.14.276, 4.19.238, 4.9.311, 5.10.110, 5.15.33, 5.16.19

How to fix

Upgrade to a fixed version: Linux kernel 4.14.276, 4.19.238, 4.9.311, 5.10.110. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/19aa3c98ed7b2616e105946cec804f897837ab84
• https://git.kernel.org/stable/c/261041097ab3470f1120b7733cbf472712304d1e
• https://git.kernel.org/stable/c/31cdf7897dba1f096b74f69d840f0575b8cdb9ae
• https://git.kernel.org/stable/c/41ed61364285ff38bbbe9ca8a45c8372ba72921d
• https://git.kernel.org/stable/c/6a4760463dbc6b603690938c468839985189ce0a
• https://git.kernel.org/stable/c/879356a6a05559582b0a7895d86d2d4359745c08
• https://git.kernel.org/stable/c/c32f6b6196b6efc1c68990dfeaac36fb8eb3b8e1
• https://git.kernel.org/stable/c/db3a61ef8e6aef3b888baa6a85926c2230c2cc56
• https://git.kernel.org/stable/c/ffb8e92b4cef92bd25563cf3d8b4489eb22bc61f

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