CVE-2026-46109

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error paths\n\nCommit 01af542392b5 (\"usb: ulpi: fix double free in\nulpi_register_interface() error path\") removed kfree(ulpi) from\nulpi_register_interface() to fix a double-free when device_register()\nfails.\n\nBut when ulpi_of_register() or ulpi_read_id() fail before\ndevice_register() is called, the ulpi allocation is leaked.\n\nAdd kfree(ulpi) on both error paths to properly clean up the allocation."}], "id": "CVE-2026-46109", "lastModified": "2026-11-06T17:17:38.080", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-46109", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-06T16:08:57.822611Z", "version": "2.0.3"}}]}, "published": "2026-05-28T10:16:26.307", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0b9fcab1b8608d429e5f239afb197de928d4de7d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/0c2c0c6820fe96fa4be0a0499f8d3f3321b9af6c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/2a71e01b2cf9b4329ff67102c1bea7448c2a2d2d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7bd61ed0bf9f4f1f2673d489b3bda1555b48d054"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b0c0d44adb55c66663886cb6e30ee92cbb0f5385"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/be2c1d825f54277472c87019e82013ac534ddc4c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f1b855c00988a9cb41134cab7cf9faedba775dd9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f30ccfc2985590b33a23a3d8bed7ca16c0af551b"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Undergoing Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-401"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: usb: ulpi: fix memory leak on ulpi_register() error paths", "id": "2482629", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482629"}, "csaw": false, "cwe": "CWE-772", "details": ["A flaw was found in the Linux kernel's USB ULPI (Ultra Low Pin Interface) subsystem. This memory leak vulnerability occurs during error handling in the `ulpi_register()` function. If certain registration failures occur, allocated memory is not properly released, which could lead to resource exhaustion and potentially a denial of service (DoS)."], "name": "CVE-2026-46109", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not 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": "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"}], "public_date": "2026-05-28T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-46109\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-46109\nhttps://lore.kernel.org/linux-cve-announce/2026052812-CVE-2026-46109-0d1a@gregkh/T"]}

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