CVE-2026-72425 ice: fix FDIR CTRL VSI resource leak in ice_reset_all_vfs()
A resource leak in the Intel ice driver during VF reset can lead to denial of service when FDIR filters are enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-72425?
CVE-2026-72425 is a high-severity denial of service vulnerability in Linux, published on 15 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
ice: fix FDIR CTRL VSI resource leak in ice_reset_all_vfs()
Resetting all VFs causes resource leak on VFs with FDIR filters enabled as CTRL VSIs are only invalidated and not freed. Fix by using ice_vf_ctrl_vsi_release() instead of ice_vf_ctrl_invalidate_vsi() which aligns behavior with the ice_reset_vf() function.
Reproduction: echo 1 > /sys/class/net/$pf/device/sriov_numvfs ethtool -N $vf flow-type ether proto 0x9000 action 0 echo 1 > /sys/class/net/$pf/device/reset
Which versions are affected by CVE-2026-72425?
How do I fix CVE-2026-72425?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-72425 being exploited?
There is no known exploitation of CVE-2026-72425 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2026-72425, DEBIAN-CVE-2026-72425, GHSA-cwxj-gwrv-324j, UBUNTU-CVE-2026-72425.