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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.

PUBLISHED Reserved 2026-05-01 | Published 2026-05-08 | Updated 2026-05-11 | Assigner Linux

Product status

Default status
unaffected

e2f5d2ea479b9b2619965d43db70939589afe43a (git) before b6117210ed349356f8e6027ff020b4d620bca42b
affected

e2f5d2ea479b9b2619965d43db70939589afe43a (git) before 815fa29cab3c67bebb9d0b5f41145cdd3a14d04d
affected

e2f5d2ea479b9b2619965d43db70939589afe43a (git) before 866e0c1a9e7244d58ed74853cb22b81e1900cfdd
affected

e2f5d2ea479b9b2619965d43db70939589afe43a (git) before bbfaa5761f589a81031b493cb01275a990d6fb25
affected

e2f5d2ea479b9b2619965d43db70939589afe43a (git) before 8e1664b9ee43608eb973d357ae5d858d30cbc9ca
affected

e2f5d2ea479b9b2619965d43db70939589afe43a (git) before cb8b9a1755fe9f38e4fb7f287486d7e7fab3dba4
affected

e2f5d2ea479b9b2619965d43db70939589afe43a (git) before 405fd652d8fedff219a8f48daf8f20e881e303ab
affected

e2f5d2ea479b9b2619965d43db70939589afe43a (git) before 26b4309a3ab82a0697751cde52eb336c29c19035
affected

Default status
affected

4.2
affected

Any version before 4.2
unaffected

5.10.252 (semver)
unaffected

5.15.202 (semver)
unaffected

6.1.165 (semver)
unaffected

6.6.128 (semver)
unaffected

6.12.75 (semver)
unaffected

6.18.16 (semver)
unaffected

6.19.6 (semver)
unaffected

7.0 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/b6117210ed349356f8e6027ff020b4d620bca42b

git.kernel.org/...c/815fa29cab3c67bebb9d0b5f41145cdd3a14d04d

git.kernel.org/...c/866e0c1a9e7244d58ed74853cb22b81e1900cfdd

git.kernel.org/...c/bbfaa5761f589a81031b493cb01275a990d6fb25

git.kernel.org/...c/8e1664b9ee43608eb973d357ae5d858d30cbc9ca

git.kernel.org/...c/cb8b9a1755fe9f38e4fb7f287486d7e7fab3dba4

git.kernel.org/...c/405fd652d8fedff219a8f48daf8f20e881e303ab

git.kernel.org/...c/26b4309a3ab82a0697751cde52eb336c29c19035

cve.org (CVE-2026-43287)

nvd.nist.gov (CVE-2026-43287)

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