CVE-2025-39875
igb: Fix NULL pointer dereference in ethtool loopback test
CVSS Score
5.5
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: igb: Fix NULL pointer dereference in ethtool loopback test The igb driver currently causes a NULL pointer dereference when executing the ethtool loopback test. This occurs because there is no associated q_vector for the test ring when it is set up, as interrupts are typically not added to the test rings. Since commit 5ef44b3cb43b removed the napi_id assignment in __xdp_rxq_info_reg(), there is no longer a need to pass a napi_id to it. Therefore, simply use 0 as the last parameter.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 23, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
2c6196013f84651772388a86dfd4bb033d0c0d45 < 473be7d39efd3be383e9c0c8e44b53508b4ffeb5 2c6196013f84651772388a86dfd4bb033d0c0d45 < 75871a525a596ff4d16c4aebc0018f8d0923c9b1
Linux / Linux
6.14