CVE-2022-49873

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://git.kernel.org/stable/c/466ce46f251dfb259a8cbaa895ab9edd6fb56240", "name": "https://git.kernel.org/stable/c/466ce46f251dfb259a8cbaa895ab9edd6fb56240", "tags": ["Patch"], "refsource": ""}, {"url": "https://git.kernel.org/stable/c/ae5ccad6c711db0f2ca1231be051935dd128b8f5", "name": "https://git.kernel.org/stable/c/ae5ccad6c711db0f2ca1231be051935dd128b8f5", "tags": ["Patch"], "refsource": ""}, {"url": "https://git.kernel.org/stable/c/cedd4f01f67be94735f15123158f485028571037", "name": "https://git.kernel.org/stable/c/cedd4f01f67be94735f15123158f485028571037", "tags": ["Patch"], "refsource": ""}, {"url": "https://git.kernel.org/stable/c/f1db20814af532f85e091231223e5e4818e8464b", "name": "https://git.kernel.org/stable/c/f1db20814af532f85e091231223e5e4818e8464b", "tags": ["Patch"], "refsource": ""}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix wrong reg type conversion in release_reference()\n\nSome helper functions will allocate memory. To avoid memory leaks, the\nverifier requires the eBPF program to release these memories by calling\nthe corresponding helper functions.\n\nWhen a resource is released, all pointer registers corresponding to the\nresource should be invalidated. The verifier use release_references() to\ndo this job, by apply __mark_reg_unknown() to each relevant register.\n\nIt will give these registers the type of SCALAR_VALUE. A register that\nwill contain a pointer value at runtime, but of type SCALAR_VALUE, which\nmay allow the unprivileged user to get a kernel pointer by storing this\nregister into a map.\n\nUsing __mark_reg_not_init() while NOT allow_ptr_leaks can mitigate this\nproblem."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-704"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2022-49873", "ASSIGNER": "cve@kernel.org"}}, "impact": {"baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}}, "publishedDate": "2025-05-01T15:16Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true}, {"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "5.15.79", "versionStartIncluding": "5.11"}, {"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "6.0.9", "versionStartIncluding": "5.16"}, {"cpe23Uri": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "5.10.155", "versionStartIncluding": "4.20"}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2025-05-07T13:21Z"}