CVE-2026-23165
Unknown Unknown - Not Provided

Deadlock Vulnerability in Linux sfc Driver RSS Configuration

Publication date: 2026-02-14

Last updated on: 2026-03-18

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: sfc: fix deadlock in RSS config read Since cited commit, core locks the net_device's rss_lock when handling ethtool -x command, so driver's implementation should not lock it again. Remove the latter.

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Meta Information

Published
2026-02-14
Last Modified
2026-03-18
Generated
2026-07-06
AI Q&A
2026-02-14
EPSS Evaluated
2026-07-05
NVD
CVE-2026-23165
EUVD
EUVD-2026-5875

Affected Vendors & Products

Showing 8 associated CPEs
Vendor Product Version / Range
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel From 6.17 (inc) to 6.18.9 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-667 The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.

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Executive Summary

This vulnerability involves a deadlock issue in the Linux kernel related to the RSS (Receive Side Scaling) configuration read process.

Specifically, the kernel's core locks the network device's rss_lock when handling the ethtool -x command, but the driver implementation was also locking it again, causing a deadlock.

The fix removes the redundant locking in the driver to prevent this deadlock.

Impact Analysis

This deadlock vulnerability can cause the system to hang or become unresponsive when the ethtool -x command is executed, potentially affecting network performance or availability.

Such a deadlock could disrupt normal network operations, leading to denial of service conditions on affected systems.

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