CVE-2025-39875
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 2c6196013f84651772388a86dfd4bb033d0c0d45 < 473be7d39efd3be383e9c0c8e44b53508b4ffeb5 | affected |
| Linux | Linux | 2c6196013f84651772388a86dfd4bb033d0c0d45 < 75871a525a596ff4d16c4aebc0018f8d0923c9b1 | affected |
| Linux | Linux | 6.14 | affected |
| Linux | Linux | 0 < 6.14 | unaffected |
| Linux | Linux | 6.16.8 <= 6.16.* | unaffected |
| Linux | Linux | 6.17 <= * | unaffected |
Weaknesses
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://git.kernel.org/stable/c/473be7d39efd3be383e9c0c8e44b53508b4ffeb5
- https://git.kernel.org/stable/c/75871a525a596ff4d16c4aebc0018f8d0923c9b1
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