{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2023-54085", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-24T13:02:52.515Z", "datePublished": "2025-12-24T13:06:16.161Z", "dateUpdated": "2025-12-24T13:06:16.161Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-12-24T13:06:16.161Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: fix NULL pointer dereference on fastopen early fallback\n\nIn case of early fallback to TCP, subflow_syn_recv_sock() deletes\nthe subflow context before returning the newly allocated sock to\nthe caller.\n\nThe fastopen path does not cope with the above unconditionally\ndereferencing the subflow context."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/mptcp/fastopen.c"], "versions": [{"version": "36b122baf6a8bd46b4a591f12f4ed17b22257408", "lessThan": "95135835519b0ab931c39908b2c99e9fb3c9068b", "status": "affected", "versionType": "git"}, {"version": "36b122baf6a8bd46b4a591f12f4ed17b22257408", "lessThan": "c0ff6f6da66a7791a32c0234388b1bdc00244917", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/mptcp/fastopen.c"], "versions": [{"version": "6.2", "status": "affected"}, {"version": "0", "lessThan": "6.2", "status": "unaffected", "versionType": "semver"}, {"version": "6.2.12", "lessThanOrEqual": "6.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.3", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "6.2.12"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.2", "versionEndExcluding": "6.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/95135835519b0ab931c39908b2c99e9fb3c9068b"}, {"url": "https://git.kernel.org/stable/c/c0ff6f6da66a7791a32c0234388b1bdc00244917"}], "title": "mptcp: fix NULL pointer dereference on fastopen early fallback", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmptcp: fix NULL pointer dereference on fastopen early fallback\n\nIn case of early fallback to TCP, subflow_syn_recv_sock() deletes\nthe subflow context before returning the newly allocated sock to\nthe caller.\n\nThe fastopen path does not cope with the above unconditionally\ndereferencing the subflow context."}], "id": "CVE-2023-54085", "lastModified": "2025-12-24T13:16:10.357", "metrics": {}, "published": "2025-12-24T13:16:10.357", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/95135835519b0ab931c39908b2c99e9fb3c9068b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c0ff6f6da66a7791a32c0234388b1bdc00244917"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{}