CVE-2021-46991

In the Linux kernel, the following vulnerability has been resolved: i40e: Fix use-after-free in i40e_client_subtask() Currently the call to i40e_client_del_instance frees the object pf->cinst, however pf->cinst->lan_info is being accessed after the free. Fix this by adding the missing return. Addresses-Coverity: ("Read from pointer after free")

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/1fd5d262e7442192ac7611ff1597a36c5b044323	Patch
https://git.kernel.org/stable/c/38318f23a7ef86a8b1862e5e8078c4de121960c3	Patch
https://git.kernel.org/stable/c/4ebc10aa7cd17fd9857dedac69600465c9dd16d1	Patch
https://git.kernel.org/stable/c/829a713450b8fb127cbabfc1244c1d8179ec5107	Patch
https://git.kernel.org/stable/c/c1322eaeb8af0d8985b5cc5fa759140fa0e57b84	Patch
https://git.kernel.org/stable/c/d718c15a2bf9ae082d5ae4d177fb19ef23cb4132	Patch
https://git.kernel.org/stable/c/1fd5d262e7442192ac7611ff1597a36c5b044323	Patch
https://git.kernel.org/stable/c/38318f23a7ef86a8b1862e5e8078c4de121960c3	Patch
https://git.kernel.org/stable/c/4ebc10aa7cd17fd9857dedac69600465c9dd16d1	Patch
https://git.kernel.org/stable/c/829a713450b8fb127cbabfc1244c1d8179ec5107	Patch
https://git.kernel.org/stable/c/c1322eaeb8af0d8985b5cc5fa759140fa0e57b84	Patch
https://git.kernel.org/stable/c/d718c15a2bf9ae082d5ae4d177fb19ef23cb4132	Patch

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

No history.

Information

Published : 2024-02-28 09:15

Updated : 2024-12-06 15:27

NVD link : CVE-2021-46991

Mitre link : CVE-2021-46991

CVE.ORG link : CVE-2021-46991

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-416

Use After Free

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