CVE-2022-48955: linux kernel — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: net: thunderbolt: fix memory leak in tbnet_open() When tb_ring_alloc_rx() failed in tbnet_open(), ida that allocated in tb_xdomain_alloc_out_hopid() is not released. Add tb_xdomain_release_out_hopid() to the error path to release ida.

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CVSS v3.1 Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-401 CWE-401

Affected Products

Vendor	Product	Versions
linux	linux_kernel	5.13 — 5.15.83
linux	linux_kernel	5.16 — 6.0.13
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All

References

Advisories & Patches

https://git.kernel.org/stable/c/b9274dbe399952a8175db2e1ee148b7c9ba2b538 https://git.kernel.org/stable/c/ed14e5903638f6eb868e3e2b4e610985e6a6c876 https://git.kernel.org/stable/c/ed6e955f3b7e0e622c080f4bcb5427a5e1af4c2a

Frequently Asked Questions

What is CVE-2022-48955? +

In the Linux kernel, the following vulnerability has been resolved: net: thunderbolt: fix memory leak in tbnet_open() When tb_ring_alloc_rx() failed in tbnet_open(), ida that allocated in tb_xdomain_alloc_out_hopid() is not released. Add tb_xdomain_release_out_hopid() to the error path to release ida. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-48955? +

CVE-2022-48955 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2022-48955? +

CVE-2022-48955 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2022-48955? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2022-48955