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Description

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.

PUBLISHED Reserved 2025-04-16 | Published 2025-09-23 | Updated 2025-09-29 | Assigner Linux

Product status

Default status
unaffected

2c6196013f84651772388a86dfd4bb033d0c0d45 (git) before 473be7d39efd3be383e9c0c8e44b53508b4ffeb5
affected

2c6196013f84651772388a86dfd4bb033d0c0d45 (git) before 75871a525a596ff4d16c4aebc0018f8d0923c9b1
affected

Default status
affected

6.14
affected

Any version before 6.14
unaffected

6.16.8 (semver)
unaffected

6.17 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/473be7d39efd3be383e9c0c8e44b53508b4ffeb5

git.kernel.org/...c/75871a525a596ff4d16c4aebc0018f8d0923c9b1

cve.org (CVE-2025-39875)

nvd.nist.gov (CVE-2025-39875)

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