CVE-2026-43287 Details
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.
A vulnerability in the Linux kernel's Direct Rendering Manager (DRM) component allows unprivileged users to allocate arbitrary-sized property blobs using the DRM_IOCTL_MODE_CREATEPROPBLOB command. These blobs are backed by kernel memory, but the memory allocation is not properly accounted for in the process's memory control group (memcg). This oversight can lead to unbounded kernel memory consumption, potentially causing a system-wide out-of-memory condition. The vulnerability has been addressed by modifying the allocation method to include memory accounting, ensuring that the existing cgroup memory limits are enforced and preventing uncontrolled growth of kernel memory.
Users should update to the patched version of the Linux kernel where this vulnerability has been addressed. Instructions for downloading the latest stable kernel can be found on the official Linux kernel website.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/26b4309a3ab82a0697751cde52eb336c29c19035 | kernel.org | Patch |
| https://git.kernel.org/stable/c/405fd652d8fedff219a8f48daf8f20e881e303ab | kernel.org | Patch |
| https://git.kernel.org/stable/c/815fa29cab3c67bebb9d0b5f41145cdd3a14d04d | kernel.org | Patch |
| https://git.kernel.org/stable/c/866e0c1a9e7244d58ed74853cb22b81e1900cfdd | kernel.org | Patch |
| https://git.kernel.org/stable/c/8e1664b9ee43608eb973d357ae5d858d30cbc9ca | kernel.org | Patch |
| https://git.kernel.org/stable/c/b6117210ed349356f8e6027ff020b4d620bca42b | kernel.org | Patch |
| https://git.kernel.org/stable/c/bbfaa5761f589a81031b493cb01275a990d6fb25 | kernel.org | Patch |
| https://git.kernel.org/stable/c/cb8b9a1755fe9f38e4fb7f287486d7e7fab3dba4 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-401 | Missing Release of Memory after Effective Lifetime | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 4.2, < 5.10.252 >= 5.11, < 5.15.202 >= 5.16, < 6.1.165 >= 6.2, < 6.6.128 >= 6.7, < 6.12.75 >= 6.13, < 6.18.16 >= 6.19, < 6.19.6 7.0 rc1 7.0 rc2 7.0 rc3 7.0 rc4 7.0 rc5 7.0 rc6 7.0 rc7 |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| May 15, 2026 | Initial Analysis | [email protected] |
| May 8, 2026 | New CVE Received | kernel.org |