CVE-2024-27021: fedora — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: r8169: fix LED-related deadlock on module removal Binding devm_led_classdev_register() to the netdev is problematic because on module removal we get a RTNL-related deadlock. Fix this by avoiding the device-managed LED functions. Note: We can safely call led_classdev_unregister() for a LED even if registering it failed, because led_classdev_unregister() detects this and is a no-op in this case.

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CVSS v3.1 Score

7.8

HIGH

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

Weakness Type (CWE)

CWE-667 CWE-667

Affected Products

Vendor	Product	Versions
linux	linux_kernel	6.8 — 6.8.8
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
fedoraproject	fedora	All
fedoraproject	fedora	All
fedoraproject	fedora	All

References

Advisories & Patches

https://git.kernel.org/stable/c/19fa4f2a85d777a8052e869c1b892a2f7556569d https://git.kernel.org/stable/c/53d986f39acd8ea11c9e460732bfa5add66360d9 https://git.kernel.org/stable/c/19fa4f2a85d777a8052e869c1b892a2f7556569d https://git.kernel.org/stable/c/53d986f39acd8ea11c9e460732bfa5add66360d9

Other References

https://lists.fedoraproject.org/archives/list/[email protected]/message/4EZ6PJW7VOZ224TD7N4JZNU6KV32ZJ53/ https://lists.fedoraproject.org/archives/list/[email protected]/message/DAMSOZXJEPUOXW33WZYWCVAY7Z5S7OOY/ https://lists.fedoraproject.org/archives/list/[email protected]/message/GCBZZEC7L7KTWWAS2NLJK6SO3IZIL4WW/

Frequently Asked Questions

What is CVE-2024-27021? +

In the Linux kernel, the following vulnerability has been resolved: r8169: fix LED-related deadlock on module removal Binding devm_led_classdev_register() to the netdev is problematic because on module removal we get a RTNL-related deadlock. Fix this by avoiding the device-managed LED functions. Note: We can safely call led_classdev_unregister() for a LED even if registering it failed, because led_classdev_unregister() detects this and is a no-op in this case. It has a CVSS v3.1 base score of 7.8 (HIGH).

How severe is CVE-2024-27021? +

CVE-2024-27021 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2024-27021? +

CVE-2024-27021 affects products from fedoraproject, linux, specifically: fedora, linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-27021? +

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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