CVE-2026-89623

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-89623", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-09-11T19:38:34.737Z", "datePublished": "2026-09-11T19:45:20.758Z", "dateUpdated": "2026-10-24T14:14:00.813Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-24T14:14:00.813Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nHID: mcp2221: stop device IO before hid_hw_stop\n\nQuiesce device IO at the start of the devm cleanup callback\nmcp2221_hid_unregister() so that incoming HID reports cannot race with\nhardware teardown during probe failure or device removal, addressing a\npotential use-after-free.\n\nGuard the call to hid_device_io_stop() with io_started. On normal\nremoval hid_device_remove() has already cleared io_started before the\ndevres group is released, so an unconditional call would otherwise hit\nthe !io_started path and emit a spurious \"io already stopped\" warning\non every removal. The guard preserves the probe-failure balancing,\nwhere io_started is still set after hid_device_io_start(), while\nstaying silent on the normal removal path."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/hid/hid-mcp2221.c"], "versions": [{"version": "d4b50ac06ea6e47bdd2b04e97d1090c673c80645", "lessThan": "85d963499f1feeea287c0a37c3eac3fc1898eca9", "status": "affected", "versionType": "git"}, {"version": "73ce9f1f2741a38f5d27393e627702ae2c46e6f2", "lessThan": "0ae90a19e6b5a8557d25d95facb7e01c9c07af38", "status": "affected", "versionType": "git"}, {"version": "73ce9f1f2741a38f5d27393e627702ae2c46e6f2", "lessThan": "c99ba6c234d4d537c317336376b78c088174034a", "status": "affected", "versionType": "git"}, {"version": "73ce9f1f2741a38f5d27393e627702ae2c46e6f2", "lessThan": "2eda1513f573945c1e3a0090341f3d28740463b1", "status": "affected", "versionType": "git"}, {"version": "73ce9f1f2741a38f5d27393e627702ae2c46e6f2", "lessThan": "dca151633c0fde90935311c60e7cfc064aa56134", "status": "affected", "versionType": "git"}, {"version": "6.6.8", "lessThan": "6.6.157", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/hid/hid-mcp2221.c"], "versions": [{"version": "6.7", "status": "affected"}, {"version": "0", "lessThan": "6.7", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.157", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.109", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.50", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2.4", "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": "6.6.8", "versionEndExcluding": "6.6.157"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7", "versionEndExcluding": "6.12.109"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7", "versionEndExcluding": "6.18.50"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7", "versionEndExcluding": "7.2.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7", "versionEndExcluding": "7.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/85d963499f1feeea287c0a37c3eac3fc1898eca9"}, {"url": "https://git.kernel.org/stable/c/0ae90a19e6b5a8557d25d95facb7e01c9c07af38"}, {"url": "https://git.kernel.org/stable/c/c99ba6c234d4d537c317336376b78c088174034a"}, {"url": "https://git.kernel.org/stable/c/2eda1513f573945c1e3a0090341f3d28740463b1"}, {"url": "https://git.kernel.org/stable/c/dca151633c0fde90935311c60e7cfc064aa56134"}], "title": "HID: mcp2221: stop device IO before hid_hw_stop", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/hid/hid-mcp2221.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "85d963499f1feeea287c0a37c3eac3fc1898eca9", "status": "affected", "version": "d4b50ac06ea6e47bdd2b04e97d1090c673c80645", "versionType": "git"}, {"lessThan": "0ae90a19e6b5a8557d25d95facb7e01c9c07af38", "status": "affected", "version": "73ce9f1f2741a38f5d27393e627702ae2c46e6f2", "versionType": "git"}, {"lessThan": "c99ba6c234d4d537c317336376b78c088174034a", "status": "affected", "version": "73ce9f1f2741a38f5d27393e627702ae2c46e6f2", "versionType": "git"}, {"lessThan": "2eda1513f573945c1e3a0090341f3d28740463b1", "status": "affected", "version": "73ce9f1f2741a38f5d27393e627702ae2c46e6f2", "versionType": "git"}, {"lessThan": "dca151633c0fde90935311c60e7cfc064aa56134", "status": "affected", "version": "73ce9f1f2741a38f5d27393e627702ae2c46e6f2", "versionType": "git"}, {"lessThan": "6.6.157", "status": "affected", "version": "6.6.8", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/hid/hid-mcp2221.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.7"}, {"lessThan": "6.7", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.157", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.109", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.50", "versionType": "semver"}, {"lessThanOrEqual": "7.2.*", "status": "unaffected", "version": "7.2.4", "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\nHID: mcp2221: stop device IO before hid_hw_stop\n\nQuiesce device IO at the start of the devm cleanup callback\nmcp2221_hid_unregister() so that incoming HID reports cannot race with\nhardware teardown during probe failure or device removal, addressing a\npotential use-after-free.\n\nGuard the call to hid_device_io_stop() with io_started. On normal\nremoval hid_device_remove() has already cleared io_started before the\ndevres group is released, so an unconditional call would otherwise hit\nthe !io_started path and emit a spurious \"io already stopped\" warning\non every removal. The guard preserves the probe-failure balancing,\nwhere io_started is still set after hid_device_io_start(), while\nstaying silent on the normal removal path."}], "id": "CVE-2026-89623", "lastModified": "2026-10-24T15:17:35.113", "metrics": {}, "published": "2026-09-11T20:19:47.630", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0ae90a19e6b5a8557d25d95facb7e01c9c07af38"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2eda1513f573945c1e3a0090341f3d28740463b1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/85d963499f1feeea287c0a37c3eac3fc1898eca9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c99ba6c234d4d537c317336376b78c088174034a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/dca151633c0fde90935311c60e7cfc064aa56134"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: Linux kernel: Use-after-free in HID mcp2221 driver during device removal", "id": "2532125", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2532125"}, "csaw": false, "cvss3": {"cvss3_base_score": "3.9", "cvss3_scoring_vector": "CVSS:3.1/AV:P/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-825", "details": ["A flaw was found in the Linux kernel's HID (Human Interface Device) mcp2221 driver. This vulnerability occurs when the device's input/output (IO) operations are not properly stopped before hardware teardown during device removal or probe failure. This timing issue can lead to a use-after-free condition, where the system attempts to access memory that has already been released. Such a condition could result in system instability or a denial of service."], "name": "CVE-2026-89623", "public_date": "2026-09-11T19:45:20Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-89623\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-89623\nhttps://git.kernel.org/stable/c/0ae90a19e6b5a8557d25d95facb7e01c9c07af38\nhttps://git.kernel.org/stable/c/2eda1513f573945c1e3a0090341f3d28740463b1\nhttps://git.kernel.org/stable/c/c99ba6c234d4d537c317336376b78c088174034a\nhttps://git.kernel.org/stable/c/dca151633c0fde90935311c60e7cfc064aa56134"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d4b50ac06ea6e47bdd2b04e97d1090c673c80645,0ae90a19e6b5a8557d25d95facb7e01c9c07af38)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d4b50ac06ea6e47bdd2b04e97d1090c673c80645,c99ba6c234d4d537c317336376b78c088174034a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d4b50ac06ea6e47bdd2b04e97d1090c673c80645,2eda1513f573945c1e3a0090341f3d28740463b1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[d4b50ac06ea6e47bdd2b04e97d1090c673c80645,dca151633c0fde90935311c60e7cfc064aa56134)"}}], "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": "semver", "value": "[6.6.8,6.12.109)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.6.8,6.18.50)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.6.8,7.2.4)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[6.6.8,7.3-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": "2026-09-12T06:30:09.006233+00:00", "updated": "2026-09-15T22:15:17.685294+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}