CVE-2022-48981
In the Linux kernel, the following vulnerability has been resolved: drm/shmem-helper: Remove errant put in error path drm_gem_shmem_mmap() doesn't own this reference, resulting in the GEM object getting prematurely freed leading to a later use-after-free.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.25%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In the Linux kernel, the following vulnerability has been resolved: drm/shmem-helper: Remove errant put in error path drm_gem_shmem_mmap() doesn't own this reference, resulting in the GEM object getting prematurely freed leading to a later use-after-free.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.25% probability · 16th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/24013314be6ee4ee456114a671e9fa3461323de8Patch
- https://git.kernel.org/stable/c/585a07b820059462e0c93b76c7de2cd946b26b40Patch
- https://git.kernel.org/stable/c/586847b98e20ab02212ca5c1fc46680384e68a28Patch
- https://git.kernel.org/stable/c/6a4da05acd062ae7774b6b19cef2b7d922902d36Patch
- https://git.kernel.org/stable/c/83e3da8bb92fcfa7a1d232cf55f9e6c49bb84942Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.