CVE-2026-93136

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

No CVSS.

References

Link	Resource
https://git.kernel.org/stable/c/4fae8fd4adc7f4765463ddeb1a5fad23936432f6
https://git.kernel.org/stable/c/51ddb831a36102fd0ea25f354935e49abce9f0a1
https://git.kernel.org/stable/c/5587e7871ce994bb079f97fe7e430d99627e5292
https://git.kernel.org/stable/c/6f12862600bb70e599a614d706a095ea5f8f9858
https://git.kernel.org/stable/c/8acc3813ab5015af73eeb74c9032443162f122d1
https://git.kernel.org/stable/c/8f3f64faee335eb678fd7dca7b95dfe3d0b271fd

Configurations

No configuration.

History

17 Sep 2026, 17:18

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-17 17:18

Updated : 2026-09-17 17:18

NVD link : CVE-2026-93136

Mitre link : CVE-2026-93136

CVE.ORG link : CVE-2026-93136

JSON object : View

Products Affected

No product.

CWE

No CWE.

{"id": "CVE-2026-93136", "cveTags": [], "metrics": {}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "297c77a0f27312b9a04696018c4cbd47926ca92b", "lessThan": "8acc3813ab5015af73eeb74c9032443162f122d1", "versionType": "git"}, {"status": "affected", "version": "297c77a0f27312b9a04696018c4cbd47926ca92b", "lessThan": "51ddb831a36102fd0ea25f354935e49abce9f0a1", "versionType": "git"}, {"status": "affected", "version": "297c77a0f27312b9a04696018c4cbd47926ca92b", "lessThan": "4fae8fd4adc7f4765463ddeb1a5fad23936432f6", "versionType": "git"}, {"status": "affected", "version": "297c77a0f27312b9a04696018c4cbd47926ca92b", "lessThan": "5587e7871ce994bb079f97fe7e430d99627e5292", "versionType": "git"}, {"status": "affected", "version": "297c77a0f27312b9a04696018c4cbd47926ca92b", "lessThan": "8f3f64faee335eb678fd7dca7b95dfe3d0b271fd", "versionType": "git"}, {"status": "affected", "version": "297c77a0f27312b9a04696018c4cbd47926ca92b", "lessThan": "6f12862600bb70e599a614d706a095ea5f8f9858", "versionType": "git"}], "programFiles": ["drivers/bus/mhi/ep/main.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5.19"}, {"status": "unaffected", "version": "0", "lessThan": "5.19", "versionType": "semver"}, {"status": "unaffected", "version": "6.1.188", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.157", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.110", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.52", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.2.6", "versionType": "semver", "lessThanOrEqual": "7.2.*"}, {"status": "unaffected", "version": "7.3-rc1", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/bus/mhi/ep/main.c"], "defaultStatus": "affected"}]}], "published": "2026-09-17T17:18:08.480", "references": [{"url": "https://git.kernel.org/stable/c/4fae8fd4adc7f4765463ddeb1a5fad23936432f6", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/51ddb831a36102fd0ea25f354935e49abce9f0a1", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/5587e7871ce994bb079f97fe7e430d99627e5292", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/6f12862600bb70e599a614d706a095ea5f8f9858", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/8acc3813ab5015af73eeb74c9032443162f122d1", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/8f3f64faee335eb678fd7dca7b95dfe3d0b271fd", "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Received", "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbus: mhi: ep: Fix device refcount leak in the error path of MHI device creation\n\nmhi_ep_create_device() takes one device reference for the UL channel and\nanother for the DL channel after allocating the transfer device. These\nreferences are normally released by mhi_ep_destroy_device() before the\ndevice itself is removed.\n\nIf dev_set_name() or device_add() fails, the error path currently drops\nonly one reference. The remaining channel references keep the device\nfrom being released and leave the channels associated with a device that\nwas never registered.\n\nRoute both failures through a common unwind path that drops the DL\nchannel reference, the UL channel reference, and the initial reference\nfrom device_initialize()."}], "lastModified": "2026-09-17T17:18:08.480", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}