CVE-2026-43287
Description
AI Translation Available
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.
https://git.kernel.org/stable/c/26b4309a3ab82a0697751cde52eb336c29c19035
https://git.kernel.org/stable/c/405fd652d8fedff219a8f48daf8f20e881e303ab
https://git.kernel.org/stable/c/815fa29cab3c67bebb9d0b5f41145cdd3a14d04d
https://git.kernel.org/stable/c/866e0c1a9e7244d58ed74853cb22b81e1900cfdd
https://git.kernel.org/stable/c/8e1664b9ee43608eb973d357ae5d858d30cbc9ca
https://git.kernel.org/stable/c/b6117210ed349356f8e6027ff020b4d620bca42b
https://git.kernel.org/stable/c/bbfaa5761f589a81031b493cb01275a990d6fb25
https://git.kernel.org/stable/c/cb8b9a1755fe9f38e4fb7f287486d7e7fab3dba4