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CVE-2021-46916

ixgbe: Fix NULL pointer dereference in ethtool loopback test PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected b02e5a0ebb172c8276cea3151942aac681f7a4a6 before 758d19098df4b0bbca9f40d6ae6c82c9c18b9bba; affected b02e5a0ebb172c8276cea3151942aac681f7a4a6 before 31166efb1cee348eb6314e9c0095d84cbeb66b9d
Linux / Linuxaffected 5.11; unaffected 0 before 5.11; unaffected 5.11.16 through 5.11.*; unaffected 5.12 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CVE

No English description supplied.

CISA-ADP

No English description supplied.

No references supplied.