CVE-2024-27021

r8169: fix LED-related deadlock on module removal

HIGH
7.8
CVSS Score
Published: May 1, 2024 at 05:30 AM UTC
Updated: June 17, 2026 at 07:18 AM UTC
2 products affected across 2 vendorsLinux KernelFedora

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.8 ≤ v < 6.8.86.8 ≤ v < 6.918764b883e157e28126b54e7d4ba9dd487d5bf546.9 rc16.9 rc26.9 rc3
Vendor states this is fixed in 19fa4f2a85d777a8052e869c1b892a2f7556569d (fixed)
Vendor states this is fixed in 53d986f39acd8ea11c9e460732bfa5add66360d9 (fixed)
Vendor states this is fixed in 6.8 (unaffected)
Vendor states this is fixed in 6.8.8 (unaffected)
Vendor states this is fixed in 6.9 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-667

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