Linux Kernel up to 5.10.36/5.11.20/5.12.3 mt7615 mt7615_unregister_device memory leak

Summaryinfo

A vulnerability identified as critical has been detected in Linux Kernel up to 5.10.36/5.11.20/5.12.3. This issue affects the function mt7615_unregister_device of the component mt7615. This manipulation causes memory leak. This vulnerability is handled as CVE-2021-47022. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Linux Kernel up to 5.10.36/5.11.20/5.12.3 (Operating System). Affected by this vulnerability is the function mt7615_unregister_device of the component mt7615. The manipulation with an unknown input leads to a memory leak vulnerability. The CWE definition for the vulnerability is CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. As an impact it is known to affect availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: mt76: mt7615: fix memleak when mt7615_unregister_device() mt7615_tx_token_put() should get call before mt76_free_pending_txwi().

The weakness was released 02/28/2024. The advisory is shared at git.kernel.org. This vulnerability is known as CVE-2021-47022 since 02/27/2024. Technical details are known, but no exploit is available.

Upgrading to version 5.10.37, 5.11.21, 5.12.4 or 5.13 eliminates this vulnerability. Applying the patch 4fa28c807da5/107bcbb219ac/6c5b2b0c6e5a/8ab31da7b89f is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 5.10.0
• 5.10.1
• 5.10.2
• 5.10.3
• 5.10.4
• 5.10.5
• 5.10.6
• 5.10.7
• 5.10.8
• 5.10.9
• 5.10.10
• 5.10.11
• 5.10.12
• 5.10.13
• 5.10.14
• 5.10.15
• 5.10.16
• 5.10.17
• 5.10.18
• 5.10.19
• 5.10.20
• 5.10.21
• 5.10.22
• 5.10.23
• 5.10.24
• 5.10.25
• 5.10.26
• 5.10.27
• 5.10.28
• 5.10.29
• 5.10.30
• 5.10.31
• 5.10.32
• 5.10.33
• 5.10.34
• 5.10.35
• 5.10.36
• 5.11.0
• 5.11.1
• 5.11.2
• 5.11.3
• 5.11.4
• 5.11.5
• 5.11.6
• 5.11.7
• 5.11.8
• 5.11.9
• 5.11.10
• 5.11.11
• 5.11.12
• 5.11.13
• 5.11.14
• 5.11.15
• 5.11.16
• 5.11.17
• 5.11.18
• 5.11.19
• 5.11.20
• 5.12.0
• 5.12.1
• 5.12.2
• 5.12.3

License

• open-source

Website

• Vendor: https://www.kernel.org/

CPE 2.3info

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CPE 2.2info

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Entryinfo

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