CVE-2021-46916
In the Linux kernel, the following vulnerability has been resolved: ixgbe: Fix NULL pointer dereference in ethtool loopback test The ixgbe driver currently generates a NULL pointer dereference when performing the ethtool loopback test.
Does this matter?
Lower severity and a low EPSS score (0.19%). Track it; it rarely justifies an emergency change on its own.
Description
In the Linux kernel, the following vulnerability has been resolved: ixgbe: Fix NULL pointer dereference in ethtool loopback test The ixgbe driver currently generates a NULL pointer dereference when performing the ethtool loopback test. This is due to the fact that there isn't a q_vector associated with the test ring when it is setup as interrupts are not normally added to the test rings. To address this I have added code that will check for a q_vector before returning a napi_id value. If a q_vector is not present it will return a value of 0.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.19% probability · 9th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/31166efb1cee348eb6314e9c0095d84cbeb66b9dPatch
- https://git.kernel.org/stable/c/758d19098df4b0bbca9f40d6ae6c82c9c18b9bbaPatch
- https://git.kernel.org/stable/c/31166efb1cee348eb6314e9c0095d84cbeb66b9dPatch
- https://git.kernel.org/stable/c/758d19098df4b0bbca9f40d6ae6c82c9c18b9bbaPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.