VYPR
Unrated severityCISA KEVNVD Advisory· Published Jan 26, 2022· Updated Oct 21, 2025

Double Free in net/packet/af_packet.c leading to priviledge escalation

CVE-2021-22600

Description

A double free bug in packet_set_ring() in net/packet/af_packet.c can be exploited by a local user through crafted syscalls to escalate privileges or deny service. We recommend upgrading kernel past the effected versions or rebuilding past ec6af094ea28f0f2dda1a6a33b14cd57e36a9755

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Affected products

147

Patches

Vulnerability mechanics

References

4

News mentions

0

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