CVE-2026-93136

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-93136", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-17T16:02:15.087Z", "datePublished": "2026-09-17T16:11:37.459Z", "dateUpdated": "2026-10-19T09:06:09.105Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-19T09:06:09.105Z"}, "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()."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/bus/mhi/ep/main.c"], "versions": [{"version": "297c77a0f27312b9a04696018c4cbd47926ca92b", "lessThan": "8acc3813ab5015af73eeb74c9032443162f122d1", "status": "affected", "versionType": "git"}, {"version": "297c77a0f27312b9a04696018c4cbd47926ca92b", "lessThan": "51ddb831a36102fd0ea25f354935e49abce9f0a1", "status": "affected", "versionType": "git"}, {"version": "297c77a0f27312b9a04696018c4cbd47926ca92b", "lessThan": "4fae8fd4adc7f4765463ddeb1a5fad23936432f6", "status": "affected", "versionType": "git"}, {"version": "297c77a0f27312b9a04696018c4cbd47926ca92b", "lessThan": "5587e7871ce994bb079f97fe7e430d99627e5292", "status": "affected", "versionType": "git"}, {"version": "297c77a0f27312b9a04696018c4cbd47926ca92b", "lessThan": "8f3f64faee335eb678fd7dca7b95dfe3d0b271fd", "status": "affected", "versionType": "git"}, {"version": "297c77a0f27312b9a04696018c4cbd47926ca92b", "lessThan": "6f12862600bb70e599a614d706a095ea5f8f9858", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/bus/mhi/ep/main.c"], "versions": [{"version": "5.19", "status": "affected"}, {"version": "0", "lessThan": "5.19", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.188", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.157", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.110", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.52", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.6", "lessThanOrEqual": "7.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.3", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.19", "versionEndExcluding": "6.1.188"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.19", "versionEndExcluding": "6.6.157"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.19", "versionEndExcluding": "6.12.110"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.19", "versionEndExcluding": "6.18.52"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.19", "versionEndExcluding": "7.2.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.19", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/8acc3813ab5015af73eeb74c9032443162f122d1"}, {"url": "https://git.kernel.org/stable/c/51ddb831a36102fd0ea25f354935e49abce9f0a1"}, {"url": "https://git.kernel.org/stable/c/4fae8fd4adc7f4765463ddeb1a5fad23936432f6"}, {"url": "https://git.kernel.org/stable/c/5587e7871ce994bb079f97fe7e430d99627e5292"}, {"url": "https://git.kernel.org/stable/c/8f3f64faee335eb678fd7dca7b95dfe3d0b271fd"}, {"url": "https://git.kernel.org/stable/c/6f12862600bb70e599a614d706a095ea5f8f9858"}], "title": "bus: mhi: ep: Fix device refcount leak in the error path of MHI device creation", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/bus/mhi/ep/main.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "8acc3813ab5015af73eeb74c9032443162f122d1", "status": "affected", "version": "297c77a0f27312b9a04696018c4cbd47926ca92b", "versionType": "git"}, {"lessThan": "51ddb831a36102fd0ea25f354935e49abce9f0a1", "status": "affected", "version": "297c77a0f27312b9a04696018c4cbd47926ca92b", "versionType": "git"}, {"lessThan": "4fae8fd4adc7f4765463ddeb1a5fad23936432f6", "status": "affected", "version": "297c77a0f27312b9a04696018c4cbd47926ca92b", "versionType": "git"}, {"lessThan": "5587e7871ce994bb079f97fe7e430d99627e5292", "status": "affected", "version": "297c77a0f27312b9a04696018c4cbd47926ca92b", "versionType": "git"}, {"lessThan": "8f3f64faee335eb678fd7dca7b95dfe3d0b271fd", "status": "affected", "version": "297c77a0f27312b9a04696018c4cbd47926ca92b", "versionType": "git"}, {"lessThan": "6f12862600bb70e599a614d706a095ea5f8f9858", "status": "affected", "version": "297c77a0f27312b9a04696018c4cbd47926ca92b", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/bus/mhi/ep/main.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.19"}, {"lessThan": "5.19", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.188", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.157", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.110", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.52", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.6", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.3", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "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()."}], "id": "CVE-2026-93136", "lastModified": "2026-10-19T10:17:03.603", "metrics": {}, "published": "2026-09-17T17:18:08.480", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "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"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: bus: mhi: ep: Fix device refcount leak in the error path of MHI device creation", "id": "2536374", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2536374"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-911", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nbus: mhi: ep: Fix device refcount leak in the error path of MHI device creation\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.\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.\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().", "A flaw was found in the Linux kernel's Mobile Host Interface (MHI) endpoint driver. An issue in the error handling path during MHI device creation can lead to a resource leak. Specifically, if certain device setup operations fail, not all allocated device references are properly released. This can result in unreleased resources, potentially leading to system instability or a Denial of Service (DoS) condition."], "name": "CVE-2026-93136", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-8", "product_name": "Red Hat OpenShift Container Platform 4"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Not affected", "package_name": "openshift/ose-rhel-coreos-9", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-09-17T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-93136\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-93136\nhttps://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-93136.mbox"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[297c77a0f27312b9a04696018c4cbd47926ca92b,8acc3813ab5015af73eeb74c9032443162f122d1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[297c77a0f27312b9a04696018c4cbd47926ca92b,51ddb831a36102fd0ea25f354935e49abce9f0a1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[297c77a0f27312b9a04696018c4cbd47926ca92b,4fae8fd4adc7f4765463ddeb1a5fad23936432f6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[297c77a0f27312b9a04696018c4cbd47926ca92b,5587e7871ce994bb079f97fe7e430d99627e5292)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[297c77a0f27312b9a04696018c4cbd47926ca92b,8f3f64faee335eb678fd7dca7b95dfe3d0b271fd)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[297c77a0f27312b9a04696018c4cbd47926ca92b,6f12862600bb70e599a614d706a095ea5f8f9858)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "5.19"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,5.19)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.188,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.157,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.110,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.52,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2.6,7.3.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.3-rc1, *)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-09-19T09:00:14.733237+00:00", "updated": "2026-09-24T02:00:14.527980+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-401", "CWE-911"]}