{"api_version":"1","generated_at":"2026-07-23T11:01:07+00:00","cve":"CVE-2024-50262","urls":{"html":"https://cve.report/CVE-2024-50262","api":"https://cve.report/api/cve/CVE-2024-50262.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2024-50262","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2024-50262"},"summary":{"title":"bpf: Fix out-of-bounds write in trie_get_next_key()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix out-of-bounds write in trie_get_next_key()\n\ntrie_get_next_key() allocates a node stack with size trie->max_prefixlen,\nwhile it writes (trie->max_prefixlen + 1) nodes to the stack when it has\nfull paths from the root to leaves. For example, consider a trie with\nmax_prefixlen is 8, and the nodes with key 0x00/0, 0x00/1, 0x00/2, ...\n0x00/8 inserted. Subsequent calls to trie_get_next_key with _key with\n.prefixlen = 8 make 9 nodes be written on the node stack with size 8.","state":"PUBLISHED","assigner":"Linux","published_at":"2024-11-09 11:15:11","updated_at":"2026-05-12 13:16:20"},"problem_types":["CWE-787","CWE-787 CWE-787 Out-of-bounds 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For example, consider a trie with\nmax_prefixlen is 8, and the nodes with key 0x00/0, 0x00/1, 0x00/2, ...\n0x00/8 inserted. Subsequent calls to trie_get_next_key with _key with\n.prefixlen = 8 make 9 nodes be written on the node stack with size 8."}],"providerMetadata":{"dateUpdated":"2026-05-11T20:48:43.014Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/e8494ac079814a53fbc2258d2743e720907488ed"},{"url":"https://git.kernel.org/stable/c/91afbc0eb3c90258ae378ae3c6ead3d2371e926d"},{"url":"https://git.kernel.org/stable/c/590976f921723d53ac199c01d5b7b73a94875e68"},{"url":"https://git.kernel.org/stable/c/86c8ebe02d8806dd8878d0063e8e185622ab6ea6"},{"url":"https://git.kernel.org/stable/c/a035df0b98df424559fd383e8e1a268f422ea2ba"},{"url":"https://git.kernel.org/stable/c/90a6e0e1e151ef7a9282e78f54c3091de2dcc99c"},{"url":"https://git.kernel.org/stable/c/c4b4f9a9ab82238cb158fa4fe61a8c0ae21a4980"},{"url":"https://git.kernel.org/stable/c/13400ac8fb80c57c2bfb12ebd35ee121ce9b4d21"}],"title":"bpf: Fix out-of-bounds write in 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Write"],"metrics":{"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9},{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"LOW","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"HIGH","integrityImpact":"HIGH","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":5.9}]},"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.16","versionEndExcluding":"4.19.323","matchCriteriaId":"0949F28F-C16D-413C-A926-2805F76036E0"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"5.4.285","matchCriteriaId":"B5A89369-320F-47FC-8695-56F61F87E4C0"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.5","versionEndExcluding":"5.10.229","matchCriteriaId":"1A03CABE-9B43-4E7F-951F-10DEEADAA426"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.11","versionEndExcluding":"5.15.171","matchCriteriaId":"2BE18665-48ED-417A-90AA-41F3AC0B4E9A"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.1.116","matchCriteriaId":"43EFDC15-E4D4-4F1E-B70D-62F0854BFDF3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.2","versionEndExcluding":"6.6.60","matchCriteriaId":"75088E5E-2400-4D20-915F-7A65C55D9CCD"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.7","versionEndExcluding":"6.11.7","matchCriteriaId":"E96F53A4-5E87-4A70-BD9A-BC327828D57F"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:*","matchCriteriaId":"7F361E1D-580F-4A2D-A509-7615F73167A1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:*","matchCriteriaId":"925478D0-3E3D-4E6F-ACD5-09F28D5DF82C"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:*","matchCriteriaId":"3C95E234-D335-4B6C-96BF-E2CEBD8654ED"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.12:rc4:*:*:*:*:*:*","matchCriteriaId":"E0F717D8-3014-4F84-8086-0124B2111379"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:6.12:rc5:*:*:*:*:*:*","matchCriteriaId":"24DBE6C7-2AAE-4818-AED2-E131F153D2FA"}]}]}]},"legacy_mitre":{"record":{"CveYear":"2024","CveId":"50262","Ordinal":"1","Title":"bpf: Fix out-of-bounds write in trie_get_next_key()","CVE":"CVE-2024-50262","Year":"2024"},"notes":[{"CveYear":"2024","CveId":"50262","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix out-of-bounds write in trie_get_next_key()\n\ntrie_get_next_key() allocates a node stack with size trie->max_prefixlen,\nwhile it writes (trie->max_prefixlen + 1) nodes to the stack when it has\nfull paths from the root to leaves. For example, consider a trie with\nmax_prefixlen is 8, and the nodes with key 0x00/0, 0x00/1, 0x00/2, ...\n0x00/8 inserted. Subsequent calls to trie_get_next_key with _key with\n.prefixlen = 8 make 9 nodes be written on the node stack with size 8.","Type":"Description","Title":"bpf: Fix out-of-bounds write in trie_get_next_key()"}]}}}