Linux kernel (net/sched ETS): Out-of-bounds indexing in the ETS qdisc - memory corruption from CAP_NET_ADMIN

CVE-2025-21692Kernel, userspace & hypervisorcurated

Impact

Out-of-bounds indexing in the ETS qdisc - memory corruption from CAP_NET_ADMIN

Who can reach it

Any tenant process in a container with CAP_NET_ADMIN in a userns

What to do

Livepatchable; otherwise drain + reboot

References

https://access.redhat.com/security/cve/CVE-2025-21692

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.