CVEvulnerability
CVE-2026-93136
- Status
- Received
- Published
- 2026-09-17
- Last modified
- 2026-10-19
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Description
In the Linux kernel, the following vulnerability has been resolved:
bus: mhi: ep: Fix device refcount leak in the error path of MHI device creation
mhi_ep_create_device() takes one device reference for the UL channel and
another for the DL channel after allocating the transfer device. These
references are normally released by mhi_ep_destroy_device() before the
device itself is removed.
If dev_set_name() or device_add() fails, the error path currently drops
only one reference. The remaining channel references keep the device
from being released and leave the channels associated with a device that
was never registered.
Route both failures through a common unwind path that drops the DL
channel reference, the UL channel reference, and the initial reference
from device_initialize().
References
- https://git.kernel.org/stable/c/4fae8fd4adc7f4765463ddeb1a5fad23936432f6 git.kernel.org
- https://git.kernel.org/stable/c/51ddb831a36102fd0ea25f354935e49abce9f0a1 git.kernel.org
- https://git.kernel.org/stable/c/5587e7871ce994bb079f97fe7e430d99627e5292 git.kernel.org
- https://git.kernel.org/stable/c/6f12862600bb70e599a614d706a095ea5f8f9858 git.kernel.org
- https://git.kernel.org/stable/c/8acc3813ab5015af73eeb74c9032443162f122d1 git.kernel.org
- https://git.kernel.org/stable/c/8f3f64faee335eb678fd7dca7b95dfe3d0b271fd git.kernel.org