CVE-2026-93136bus: mhi: ep: Fix device refcount leak in the error path of MHI device creation
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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().
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Sep 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 297c77a0f27312b9a04696018c4cbd47926ca92b builds before 8acc3813ab5015af73eeb74c9032443162f122d1; 297c77a0f27312b9a04696018c4cbd47926ca92b builds before 51ddb831a36102fd0ea25f354935e49abce9f0a1; 297c77a0f27312b9a04696018c4cbd47926ca92b builds before 4fae8fd4adc7f4765463ddeb1a5fad23936432f6; from 297c77a0f27312b9a04696018c4cbd47926ca92b before 5587e7871ce994bb079f97fe7e430d99627e5292; 297c77a0f27312b9a04696018c4cbd47926ca92b builds before 8f3f64faee335eb678fd7dca7b95dfe3d0b271fd; 297c77a0f27312b9a04696018c4cbd47926ca92b builds before 6f12862600bb70e599a614d706a095ea5f8f9858 | CNA record |
References
- https://git.kernel.org/stable/c/8acc3813ab5015af73eeb74c9032443162f122d1
- https://git.kernel.org/stable/c/51ddb831a36102fd0ea25f354935e49abce9f0a1
- https://git.kernel.org/stable/c/4fae8fd4adc7f4765463ddeb1a5fad23936432f6
- https://git.kernel.org/stable/c/5587e7871ce994bb079f97fe7e430d99627e5292
- https://git.kernel.org/stable/c/8f3f64faee335eb678fd7dca7b95dfe3d0b271fd
- https://git.kernel.org/stable/c/6f12862600bb70e599a614d706a095ea5f8f9858
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.