Linux Kernel up to 5.4.181/5.10.102/5.15.25/5.16.11 nfp_tunnel_add_shared_mac memory leak

Summaryinfo

A vulnerability categorized as critical has been discovered in Linux Kernel up to 5.4.181/5.10.102/5.15.25/5.16.11. This affects the function nfp_tunnel_add_shared_mac. The manipulation results in memory leak. This vulnerability is cataloged as CVE-2022-48934. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 5.4.181/5.10.102/5.15.25/5.16.11. It has been classified as critical. Affected is the function nfp_tunnel_add_shared_mac. The manipulation with an unknown input leads to a memory leak vulnerability. CWE is classifying the issue as CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. This is going to have an impact on availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: nfp: flower: Fix a potential leak in nfp_tunnel_add_shared_mac() ida_simple_get() returns an id between min (0) and max (NFP_MAX_MAC_INDEX) inclusive. So NFP_MAX_MAC_INDEX (0xff) is a valid id. In order for the error handling path to work correctly, the 'invalid' value for 'ida_idx' should not be in the 0..NFP_MAX_MAC_INDEX range, inclusive. So set it to -1.

The advisory is available at git.kernel.org. This vulnerability is traded as CVE-2022-48934 since 08/21/2024. The exploitability is told to be difficult. Technical details are known, but there is no available exploit.

Upgrading to version 5.4.182, 5.10.103, 5.15.26 or 5.16.12 eliminates this vulnerability. Applying the patch 5ad5886f85b6/af4bc921d39d/9d8097caa732/4086d2433576/3a14d0888eb4 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.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Operating System

Vendor

• Linux

Name

• Kernel

Version

• 5.4.181
• 5.10.102
• 5.15.0
• 5.15.1
• 5.15.2
• 5.15.3
• 5.15.4
• 5.15.5
• 5.15.6
• 5.15.7
• 5.15.8
• 5.15.9
• 5.15.10
• 5.15.11
• 5.15.12
• 5.15.13
• 5.15.14
• 5.15.15
• 5.15.16
• 5.15.17
• 5.15.18
• 5.15.19
• 5.15.20
• 5.15.21
• 5.15.22
• 5.15.23
• 5.15.24
• 5.15.25
• 5.16.0
• 5.16.1
• 5.16.2
• 5.16.3
• 5.16.4
• 5.16.5
• 5.16.6
• 5.16.7
• 5.16.8
• 5.16.9
• 5.16.10
• 5.16.11

License

• open-source

Website

• Vendor: https://www.kernel.org/

CPE 2.3info

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CPE 2.2info

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Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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