CVE-2022-50071

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{"bugzilla": {"description": "kernel: mptcp: move subflow cleanup in mptcp_destroy_common()", "id": "2373564", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2373564"}, "csaw": false, "cvss3": {"cvss3_base_score": "2.3", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nmptcp: move subflow cleanup in mptcp_destroy_common()\nIf the mptcp socket creation fails due to a CGROUP_INET_SOCK_CREATE\neBPF program, the MPTCP protocol ends-up leaking all the subflows:\nthe related cleanup happens in __mptcp_destroy_sock() that is not\ninvoked in such code path.\nAddress the issue moving the subflow sockets cleanup in the\nmptcp_destroy_common() helper, which is invoked in every msk cleanup\npath.\nAdditionally get rid of the intermediate list_splice_init step, which\nis an unneeded relic from the past.\nThe issue is present since before the reported root cause commit, but\nany attempt to backport the fix before that hash will require a complete\nrewrite."], "name": "CVE-2022-50071", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-06-18T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-50071\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-50071\nhttps://lore.kernel.org/linux-cve-announce/2025061853-CVE-2022-50071-874c@gregkh/T"], "statement": "The issue leads to a memory/socket leak when an MPTCP socket fails to initialize due to a CGROUP_INET_SOCK_CREATE eBPF hook. Subflows are not cleaned up in this failure path, resulting in leaked resources. The bug is not directly exploitable and causes minor local denial of service in rare configurations.", "threat_severity": "Low"}

{"created": "2025-06-23T08:36:34.188175+00:00", "updated": "2025-06-23T08:36:34.188222+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}