Vulnerability Details 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. 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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 8.4%
CVSS Severity
CVSS v3 Score 5.5
References
Products affected by CVE-2021-46916
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cpe:2.3:o:linux:linux_kernel:5.11.1
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cpe:2.3:o:linux:linux_kernel:5.11.10
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cpe:2.3:o:linux:linux_kernel:5.11.11
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cpe:2.3:o:linux:linux_kernel:5.11.12
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cpe:2.3:o:linux:linux_kernel:5.11.13
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cpe:2.3:o:linux:linux_kernel:5.11.14
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cpe:2.3:o:linux:linux_kernel:5.11.15
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cpe:2.3:o:linux:linux_kernel:5.11.2
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cpe:2.3:o:linux:linux_kernel:5.11.3
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cpe:2.3:o:linux:linux_kernel:5.11.4
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cpe:2.3:o:linux:linux_kernel:5.11.5
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cpe:2.3:o:linux:linux_kernel:5.11.6
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cpe:2.3:o:linux:linux_kernel:5.11.7
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cpe:2.3:o:linux:linux_kernel:5.11.8
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cpe:2.3:o:linux:linux_kernel:5.11.9