CVE-2022-48720

net: macsec: Fix offload support for NETDEV_UNREGISTER event

MEDIUM
5.5
CVSS Score
Published: June 20, 2024 at 11:13 AM UTC
Updated: August 5, 2026 at 09:24 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: net: macsec: Fix offload support for NETDEV_UNREGISTER event Current macsec netdev notify handler handles NETDEV_UNREGISTER event by releasing relevant SW resources only, this causes resources leak in case of macsec HW offload, as the underlay driver was not notified to clean it's macsec offload resources. Fix by calling the underlay driver to clean it's relevant resources by moving offload handling from macsec_dellink() to macsec_common_dellink() when handling NETDEV_UNREGISTER event.

Affected

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

5.11 ≤ v < 5.15.225.16 ≤ v < 5.16.85.6 ≤ v < 5.10.995.6 ≤ v < 5.15.225.6 ≤ v < 5.16.85.6 ≤ v < 5.173cf3227a21d1fb020fe26128e60321bd2151e9225.17 rc15.17 rc2
Vendor states this is fixed in 2e7f5b6ee1a7a2c628253a95b0a95b582901ef1b (fixed)
Vendor states this is fixed in 8299be160aad8548071d080518712dec0df92bd5 (fixed)
Vendor states this is fixed in 9cef24c8b76c1f6effe499d2f131807c90f7ce9a (fixed)
Vendor states this is fixed in e7a0b3a0806dae3cc81931f0e83055ca2ac6f455 (fixed)
Vendor states this is fixed in 5.10.99 (unaffected)
Vendor states this is fixed in 5.15.22 (unaffected)
Vendor states this is fixed in 5.16.8 (unaffected)
Vendor states this is fixed in 5.17 (unaffected)
Vendor states this is fixed in 5.6 (unaffected)

References (4)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/2e7f5b6ee1a7a2c628253a95b0a95b582901ef1b
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/8299be160aad8548071d080518712dec0df92bd5
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/9cef24c8b76c1f6effe499d2f131807c90f7ce9a
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/e7a0b3a0806dae3cc81931f0e83055ca2ac6f455

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
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-Other

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