Linux kernel (af_packet): Double free in packet_set_ring(), local privilege escalation

CVE-2021-22600Kernel, userspace & hypervisorKnown exploitedcurated

Impact

Double free in packet_set_ring(), local privilege escalation [KEV]

Who can reach it

Any tenant process in a container with CAP_NET_RAW

What to do

Livepatchable; otherwise drain + reboot

References

https://access.redhat.com/security/cve/CVE-2021-22600

This entry is curated: imported from vendor advisories with machine assistance, not yet individually verified. Confirm against your vendor's advisory before acting, and report anything wrong.