Description (CNA)
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().
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 297c77a0f27312b9a04696018c4cbd47926ca92b before 8acc3813ab5015af73eeb74c9032443162f122d1; affected 297c77a0f27312b9a04696018c4cbd47926ca92b before 51ddb831a36102fd0ea25f354935e49abce9f0a1; affected 297c77a0f27312b9a04696018c4cbd47926ca92b before 4fae8fd4adc7f4765463ddeb1a5fad23936432f6; affected 297c77a0f27312b9a04696018c4cbd47926ca92b before 5587e7871ce994bb079f97fe7e430d99627e5292; affected 297c77a0f27312b9a04696018c4cbd47926ca92b before 8f3f64faee335eb678fd7dca7b95dfe3d0b271fd; affected 297c77a0f27312b9a04696018c4cbd47926ca92b before 6f12862600bb70e599a614d706a095ea5f8f9858 |
| Linux / Linux | affected 5.19; unaffected 0 before 5.19; unaffected 6.1.188 through 6.1.*; unaffected 6.6.157 through 6.6.*; unaffected 6.12.110 through 6.12.*; unaffected 6.18.52 through 6.18.*; unaffected 7.2.6 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
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