Description
In the Linux kernel, the following vulnerability has been resolved: drm/shmem-helper: Remove another errant put in error path drm_gem_shmem_mmap() doesn't own reference in error code path, resulting in the dma-buf shmem GEM object getting prematurely freed leading to a later use-after-free.
Affected products
linux: linux kernel
References5
- git.kernel.org/stable/c/5cfb617967b05f8f27e862c97db1fabd8485f4db Patch
- git.kernel.org/stable/c/684c7372bbd6447c2e86a2a84e97a1478604d21f Patch
- git.kernel.org/stable/c/77d26c824aa5a7e0681ef1d5b75fe538d746addc Patch
- git.kernel.org/stable/c/dede8c14a37a7ac458f9add56154a074ed78e7cf Patch
- git.kernel.org/stable/c/ee9adb7a45516cfa536ca92253d7ae59d56db9e4 Patch
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 11 · as of 7 November 2026
- CWE
- CWE-416
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.