{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-3910", "assignerOrgId": "14ed7db2-1595-443d-9d34-6215bf890778", "state": "PUBLISHED", "assignerShortName": "Google", "requesterUserId": "ed9b5bb2-2df1-4aa3-9791-5fb260d88e62", "dateReserved": "2022-11-09T12:57:22.704Z", "datePublished": "2022-11-22T12:12:16.700Z", "dateUpdated": "2025-04-21T13:46:13.836Z"}, "containers": {"cna": {"affected": [{"defaultStatus": "unaffected", "packageName": "kernel", "product": "Linux Kernel", "repo": "https://git.kernel.org", "vendor": "Linux", "versions": [{"lessThanOrEqual": "5.19.10", "status": "affected", "version": "5.18.0", "versionType": "custom"}]}], "credits": [{"lang": "en", "type": "finder", "user": "00000000-0000-4000-9000-000000000000", "value": "Bing-Jhong Billy Jheng of Starlabs"}], "datePublic": "2022-05-16T22:00:00.000Z", "descriptions": [{"lang": "en", "supportingMedia": [{"base64": false, "type": "text/html", "value": "Use After Free vulnerability in Linux Kernel allows Privilege Escalation. An improper Update of Reference Count in io_uring leads to Use-After-Free and Local Privilege Escalation.<br>When io_msg_ring was invoked with a fixed file, it called io_fput_file() which improperly decreased its reference count (leading to Use-After-Free and Local Privilege Escalation). Fixed files are permanently registered to the ring, and should not be put separately.<br><br>We recommend upgrading past commit <a target=\"_blank\" rel=\"nofollow\" href=\"https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679\">https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679</a><br>"}], "value": "Use After Free vulnerability in Linux Kernel allows Privilege Escalation. An improper Update of Reference Count in io_uring leads to Use-After-Free and Local Privilege Escalation.\nWhen io_msg_ring was invoked with a fixed file, it called io_fput_file() which improperly decreased its reference count (leading to Use-After-Free and Local Privilege Escalation). Fixed files are permanently registered to the ring, and should not be put separately.\n\nWe recommend upgrading past commit https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679 https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679 \n"}], "impacts": [{"capecId": "CAPEC-233", "descriptions": [{"lang": "en", "value": "CAPEC-233 Privilege Escalation"}]}], "metrics": [{"cvssV3_1": {"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"}, "format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}]}], "problemTypes": [{"descriptions": [{"cweId": "CWE-416", "description": "CWE-416 Use After Free", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"orgId": "14ed7db2-1595-443d-9d34-6215bf890778", "shortName": "Google", "dateUpdated": "2022-11-22T12:26:26.702Z"}, "references": [{"url": "https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679"}, {"url": "https://kernel.dance/#fc7222c3a9f56271fba02aabbfbae999042f1679"}], "source": {"discovery": "EXTERNAL"}, "title": "Use after free in IO_uring in the Linux Kernel", "x_generator": {"engine": "Vulnogram 0.1.0-dev"}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T01:20:58.856Z"}, "title": "CVE Program Container", "references": [{"url": "https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679", "tags": ["x_transferred"]}, {"url": "https://kernel.dance/#fc7222c3a9f56271fba02aabbfbae999042f1679", "tags": ["x_transferred"]}]}, {"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2025-04-21T13:37:05.356078Z", "id": "CVE-2022-3910", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-04-21T13:46:13.836Z"}}]}}

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{"bugzilla": {"description": "kernel: Improper update of reference count in io_uring leads to use-after-free", "id": "2144960", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2144960"}, "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-911->CWE-416", "details": ["Use After Free vulnerability in Linux Kernel allows Privilege Escalation. An improper Update of Reference Count in io_uring leads to Use-After-Free and Local Privilege Escalation.\nWhen io_msg_ring was invoked with a fixed file, it called io_fput_file() which improperly decreased its reference count (leading to Use-After-Free and Local Privilege Escalation). Fixed files are permanently registered to the ring, and should not be put separately.\nWe recommend upgrading past commit https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679 https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679", "A use-after-free flaw was found in the io_uring subsystem of the Linux kernel. When io_msg_ring was invoked with a fixed file, it called io_fput_file() which improperly decreased its reference count. This could allow a local user to crash the system or escalate their privileges on the system."], "name": "CVE-2022-3910", "package_state": [{"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": "2022-09-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-3910\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-3910"], "statement": "Red Hat Enterprise Linux is not affected by this flaw as io_uring (CONFIG_IO_URING) is not enabled in any current shipping kernels.", "threat_severity": "Moderate"}