CVE-2026-64345

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VFS\ndoes not call ->release() for a failed open, so every rejected second\nopen permanently leaks one reference.\n\nMove kref_get() into the successful-open branch."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/usb/gadget/function/f_printer.c"], "versions": [{"version": "e8d5f92b8d30bb4ade76494490c3c065e12411b1", "lessThan": "94ec20d97aa51547965a539f660a1fe79c6929a3", "status": "affected", "versionType": "git"}, {"version": "e8d5f92b8d30bb4ade76494490c3c065e12411b1", "lessThan": "a12d81a9cc2a012a24ecb7f9ba076b9f7c179bd3", "status": "affected", "versionType": "git"}, {"version": "e8d5f92b8d30bb4ade76494490c3c065e12411b1", "lessThan": "75c0ad13e136961328253742501b4efc3988a587", "status": "affected", "versionType": "git"}, {"version": "e8d5f92b8d30bb4ade76494490c3c065e12411b1", "lessThan": "bf20c94fa6aaff945f0ae3a23f3212cd299f28d9", "status": 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VFS\ndoes not call ->release() for a failed open, so every rejected second\nopen permanently leaks one reference.\n\nMove kref_get() into the successful-open branch."}], "id": "CVE-2026-64345", "lastModified": "2026-10-30T13:19:34.813", "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"}]}, "published": "2026-07-25T10:17:16.623", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/30adce93d5c4a5a1ec29d9249e3fdfcc391d406b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/75c0ad13e136961328253742501b4efc3988a587"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7f1f24c367938c5537e2308bf9a965f051d14774"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/8a5eba992c862b0c94411eecf9b7121e8636db38"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/94ec20d97aa51547965a539f660a1fe79c6929a3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a12d81a9cc2a012a24ecb7f9ba076b9f7c179bd3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/bf20c94fa6aaff945f0ae3a23f3212cd299f28d9"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: usb: gadget: f_printer: take kref only for successful open", "id": "2507224", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507224"}, "csaw": false, "cwe": "CWE-911", "details": ["A flaw was found in the Linux kernel's USB printer gadget driver. The `printer_open()` function incorrectly increments a reference counter even when the device is already in use and the open operation fails. This prevents the reference from being properly released, leading to a permanent leak of system resources. Over time, repeated failed attempts to open the printer device can exhaust available resources, potentially causing a denial of service (DoS) for affected systems."], "name": "CVE-2026-64345", "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": "2026-07-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-64345\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-64345\nhttps://lore.kernel.org/linux-cve-announce/2026072517-CVE-2026-64345-5069@gregkh/T"]}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[e8d5f92b8d30bb4ade76494490c3c065e12411b1,94ec20d97aa51547965a539f660a1fe79c6929a3)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[e8d5f92b8d30bb4ade76494490c3c065e12411b1,75c0ad13e136961328253742501b4efc3988a587)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[e8d5f92b8d30bb4ade76494490c3c065e12411b1,bf20c94fa6aaff945f0ae3a23f3212cd299f28d9)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[e8d5f92b8d30bb4ade76494490c3c065e12411b1,8a5eba992c862b0c94411eecf9b7121e8636db38)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[e8d5f92b8d30bb4ade76494490c3c065e12411b1,7f1f24c367938c5537e2308bf9a965f051d14774)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[e8d5f92b8d30bb4ade76494490c3c065e12411b1,30adce93d5c4a5a1ec29d9249e3fdfcc391d406b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "25c95c6bd4dc50a3c20de0fa7f450ea02b2320fc"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "4a47581cf010dc351d8069978080fdb000c0776d"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "d9fe88b2a38dc700bf5bd3a09c7cd11bbc248367"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "cedb0187b8ba929c3f76f28e6bc25804d65f8a54"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "e9e791f5c39ab30e374a3b1a9c25ca7ff24988f3"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "34f026263889e2827e04acdc3a0eb9ecbd191ef0"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "5f845e5d18d151230476cf90aa46449f69ba2ef1"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,4.5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,4.10)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,4.15)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,4.20)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,5.5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,5.9)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,5.10)"}}], "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": "5.10"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,5.10)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,5.10.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.6.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.12.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.18.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,7.1.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[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": "2026-07-25T14:15:03.352639+00:00", "updated": "2026-09-03T21:15:04.566293+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}