CVE-2026-43287

drm: Account property blob allocations to memcg

State: Published
Severity: Not scored
Published: May 8, 2026
Updated: May 11, 2026
Reserved: May 1, 2026

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	e2f5d2ea479b9b2619965d43db70939589afe43a to before b6117210ed349356f8e6027ff020b4d620bca42bAffected e2f5d2ea479b9b2619965d43db70939589afe43a to before 815fa29cab3c67bebb9d0b5f41145cdd3a14d04dAffected e2f5d2ea479b9b2619965d43db70939589afe43a to before 866e0c1a9e7244d58ed74853cb22b81e1900cfddAffected e2f5d2ea479b9b2619965d43db70939589afe43a to before bbfaa5761f589a81031b493cb01275a990d6fb25Affected e2f5d2ea479b9b2619965d43db70939589afe43a to before 8e1664b9ee43608eb973d357ae5d858d30cbc9caAffected e2f5d2ea479b9b2619965d43db70939589afe43a to before cb8b9a1755fe9f38e4fb7f287486d7e7fab3dba4Affected e2f5d2ea479b9b2619965d43db70939589afe43a to before 405fd652d8fedff219a8f48daf8f20e881e303abAffected e2f5d2ea479b9b2619965d43db70939589afe43a to before 26b4309a3ab82a0697751cde52eb336c29c19035Affected
LinuxLinux	4.2Affected before 4.2Not affected 5.10.252 through 5.10.Not affected 5.15.202 through 5.15.Not affected 6.1.165 through 6.1.Not affected 6.6.128 through 6.6.Not affected 6.12.75 through 6.12.Not affected 6.18.16 through 6.18.Not affected 6.19.6 through 6.19.*Not affected 7.0 and laterNot affected

Product

Versions

LinuxLinux

e2f5d2ea479b9b2619965d43db70939589afe43a to before b6117210ed349356f8e6027ff020b4d620bca42bAffected
e2f5d2ea479b9b2619965d43db70939589afe43a to before 815fa29cab3c67bebb9d0b5f41145cdd3a14d04dAffected
e2f5d2ea479b9b2619965d43db70939589afe43a to before 866e0c1a9e7244d58ed74853cb22b81e1900cfddAffected
e2f5d2ea479b9b2619965d43db70939589afe43a to before bbfaa5761f589a81031b493cb01275a990d6fb25Affected
e2f5d2ea479b9b2619965d43db70939589afe43a to before 8e1664b9ee43608eb973d357ae5d858d30cbc9caAffected
e2f5d2ea479b9b2619965d43db70939589afe43a to before cb8b9a1755fe9f38e4fb7f287486d7e7fab3dba4Affected
e2f5d2ea479b9b2619965d43db70939589afe43a to before 405fd652d8fedff219a8f48daf8f20e881e303abAffected
e2f5d2ea479b9b2619965d43db70939589afe43a to before 26b4309a3ab82a0697751cde52eb336c29c19035Affected

LinuxLinux

4.2Affected
before 4.2Not affected
5.10.252 through 5.10.*Not affected
5.15.202 through 5.15.*Not affected
6.1.165 through 6.1.*Not affected
6.6.128 through 6.6.*Not affected
6.12.75 through 6.12.*Not affected
6.18.16 through 6.18.*Not affected
6.19.6 through 6.19.*Not affected
7.0 and laterNot affected

References

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