CVE-2023-53002 drm/i915: Fix a memory leak with reused mmap_offset
A memory leak in the Linux kernel's i915 driver allows local attackers to exhaust system memory, potentially causing a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-53002?
CVE-2023-53002 is a medium-severity denial of service vulnerability in Linux kernel, published on 27 Mar 2025. 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:
drm/i915: Fix a memory leak with reused mmap_offset
drm_vma_node_allow() and drm_vma_node_revoke() should be called in balanced pairs. We call drm_vma_node_allow() once per-file everytime a user calls mmap_offset, but only call drm_vma_node_revoke once per-file on each mmap_offset. As the mmap_offset is reused by the client, the per-file vm_count may remain non-zero and the rbtree leaked.
Call drm_vma_node_allow_once() instead to prevent that memory leak.
Weakness: CWE-401
Which versions are affected by CVE-2023-53002?
It affects 1 product.
Products include Linux kernel.
How do I fix CVE-2023-53002?
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-2023-53002 being exploited?
There is no known exploitation of CVE-2023-53002 in the wild and no public exploit code.
Other vulnerabilities in Linux kernel
Sources
Also known as AZL-60318, BELL-CVE-2023-53002, DEBIAN-CVE-2023-53002, GHSA-vxj7-p6gh-99vg, ROOT-OS-DEBIAN-11-CVE-2023-53002, ROOT-OS-UBUNTU-2204-CVE-2023-53002 and 1 more.