CVE-2026-31759

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through ulpi_dev_release() and\navoid freeing ulpi again in ulpi_register_interface()."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/usb/common/ulpi.c"], "versions": [{"version": "289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f", "lessThan": "2f70ba9dae13a190673cc3f9b4aad52179738f60", "status": "affected", "versionType": "git"}, {"version": "289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f", "lessThan": "ee248e6e941e4f2e634df2bd43e5f1ef810ab6df", "status": "affected", "versionType": "git"}, {"version": "289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f", "lessThan": "272a9b26c336a295e4e209157fed809706c1b1f7", "status": "affected", "versionType": "git"}, {"version": "289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f", "lessThan": "aaeae6533d77e6ed4def85baec01e2815ebbef61", "status": "affected", "versionType": "git"}, {"version": "289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f", "lessThan": "8763f8317bb389aded32a32b08f6751cfff657d2", "status": "affected", "versionType": "git"}, {"version": "289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f", "lessThan": "38c28fe25611099230f0965c925499bfcf46a795", "status": "affected", "versionType": "git"}, {"version": "289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f", "lessThan": "a6e5461f076c2ef63159f18e5cdbd30b50f0bc15", "status": "affected", "versionType": "git"}, {"version": "289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f", "lessThan": "01af542392b5d41fd659d487015a71f627accce3", "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/usb/common/ulpi.c"], "versions": [{"version": "4.2", "status": "affected"}, {"version": "0", "lessThan": "4.2", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.253", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": 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"git"}], "programFiles": ["drivers/usb/common/ulpi.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "4.2"}, {"status": "unaffected", "version": "0", "lessThan": "4.2", "versionType": "semver"}, {"status": "unaffected", "version": "5.10.253", "versionType": "semver", "lessThanOrEqual": "5.10.*"}, {"status": "unaffected", "version": "5.15.203", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.168", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.134", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.81", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.22", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "6.19.12", "versionType": "semver", "lessThanOrEqual": "6.19.*"}, {"status": "unaffected", "version": "7.0", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/usb/common/ulpi.c"], "defaultStatus": "affected"}], "references": [{"url": "https://git.kernel.org/stable/c/2f70ba9dae13a190673cc3f9b4aad52179738f60"}, {"url": "https://git.kernel.org/stable/c/ee248e6e941e4f2e634df2bd43e5f1ef810ab6df"}, {"url": "https://git.kernel.org/stable/c/272a9b26c336a295e4e209157fed809706c1b1f7"}, {"url": "https://git.kernel.org/stable/c/aaeae6533d77e6ed4def85baec01e2815ebbef61"}, {"url": "https://git.kernel.org/stable/c/8763f8317bb389aded32a32b08f6751cfff657d2"}, {"url": "https://git.kernel.org/stable/c/38c28fe25611099230f0965c925499bfcf46a795"}, {"url": "https://git.kernel.org/stable/c/a6e5461f076c2ef63159f18e5cdbd30b50f0bc15"}, {"url": "https://git.kernel.org/stable/c/01af542392b5d41fd659d487015a71f627accce3"}], "x_generator": {"engine": "bippy-1.2.0"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: ulpi: fix double free in ulpi_register_interface() error path\n\nWhen device_register() fails, ulpi_register() calls put_device() on\nulpi->dev.\n\nThe device release callback ulpi_dev_release() drops the OF node\nreference and frees ulpi, but the current error path in\nulpi_register_interface() then calls kfree(ulpi) again, causing a\ndouble free.\n\nLet put_device() handle the cleanup through ulpi_dev_release() and\navoid freeing ulpi again in ulpi_register_interface()."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.253", "versionStartIncluding": "4.2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.203", "versionStartIncluding": "4.2"}, {"criteria": 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"versionType": "git"}, {"lessThan": "38c28fe25611099230f0965c925499bfcf46a795", "status": "affected", "version": "289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f", "versionType": "git"}, {"lessThan": "a6e5461f076c2ef63159f18e5cdbd30b50f0bc15", "status": "affected", "version": "289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f", "versionType": "git"}, {"lessThan": "01af542392b5d41fd659d487015a71f627accce3", "status": "affected", "version": "289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/usb/common/ulpi.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "4.2"}, {"lessThan": "4.2", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.253", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.203", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.168", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.134", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.81", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.22", "versionType": "semver"}, {"lessThanOrEqual": "6.19.*", "status": "unaffected", "version": "6.19.12", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.0", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "CC85AD7F-B910-43F1-9A7F-94BC2781DACB", "versionEndExcluding": "5.10.253", "versionStartIncluding": "4.2", "vulnerable": true}, {"criteria": 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"cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*", "matchCriteriaId": "1D2315C0-D46F-4F85-9754-F9E5E11374A6", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: ulpi: fix double free in ulpi_register_interface() error path\n\nWhen device_register() fails, ulpi_register() calls put_device() on\nulpi->dev.\n\nThe device release callback ulpi_dev_release() drops the OF node\nreference and frees ulpi, but the current error path in\nulpi_register_interface() then calls kfree(ulpi) again, causing a\ndouble free.\n\nLet put_device() handle the cleanup through ulpi_dev_release() and\navoid freeing ulpi again in ulpi_register_interface()."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nusb: ulpi: corregir doble liberaci\u00f3n en la ruta de error de ulpi_register_interface()\n\nCuando device_register() falla, ulpi_register() llama a put_device() en ulpi -> dev.\n\nLa funci\u00f3n de devoluci\u00f3n de llamada de liberaci\u00f3n de dispositivo ulpi_dev_release() elimina la referencia del nodo OF y libera ulpi, pero la ruta de error actual en ulpi_register_interface() luego llama a kfree(ulpi) de nuevo, causando una doble liberaci\u00f3n.\n\nDejar que put_device() maneje la limpieza a trav\u00e9s de ulpi_dev_release() y evitar liberar ulpi de nuevo en ulpi_register_interface()."}], "id": "CVE-2026-31759", "lastModified": "2026-11-11T21:10:00.200", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-31759", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-06T15:24:54.410524Z", "version": "2.0.3"}}]}, "published": "2026-05-01T15:16:38.923", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/01af542392b5d41fd659d487015a71f627accce3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/272a9b26c336a295e4e209157fed809706c1b1f7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2f70ba9dae13a190673cc3f9b4aad52179738f60"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/38c28fe25611099230f0965c925499bfcf46a795"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8763f8317bb389aded32a32b08f6751cfff657d2"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a6e5461f076c2ef63159f18e5cdbd30b50f0bc15"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/aaeae6533d77e6ed4def85baec01e2815ebbef61"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/ee248e6e941e4f2e634df2bd43e5f1ef810ab6df"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-415"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: usb: ulpi: fix double free in ulpi_register_interface() error path", "id": "2464457", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2464457"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-1341", "details": ["A flaw was found in the Linux kernel's USB ULPI (UTMI+ Low Pin Interface) driver. An error in the `ulpi_register_interface()` function's cleanup path can lead to a double free vulnerability. This occurs when `device_register()` fails, causing the `ulpi` structure to be freed twice. A local attacker could potentially exploit this to cause memory corruption or a denial of service, leading to system instability."], "name": "CVE-2026-31759", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "package_name": "kernel", "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": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-05-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-31759\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-31759\nhttps://lore.kernel.org/linux-cve-announce/2026050145-CVE-2026-31759-426b@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f,2f70ba9dae13a190673cc3f9b4aad52179738f60)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f,ee248e6e941e4f2e634df2bd43e5f1ef810ab6df)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f,272a9b26c336a295e4e209157fed809706c1b1f7)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f,aaeae6533d77e6ed4def85baec01e2815ebbef61)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f,8763f8317bb389aded32a32b08f6751cfff657d2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f,38c28fe25611099230f0965c925499bfcf46a795)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f,a6e5461f076c2ef63159f18e5cdbd30b50f0bc15)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f,01af542392b5d41fd659d487015a71f627accce3)"}}], "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": "4.2"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,4.2)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.10.253,5.11.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.203,5.16.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.168,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.134,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.81,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.22,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.19.12,6.20.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.0,*]"}}], "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": "2026-05-01T16:45:20.674880+00:00", "updated": "2026-05-08T20:30:16.051653+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}