{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2022-49086 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2022-49086 is a medium-severity denial of service vulnerability in Linux kernel, published on 26 Feb 2025. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2022-49086 and fix it if it is affected.\n\nWhat it is: CVE-2022-49086 is a medium-severity denial of service vulnerability in Linux kernel, published on 26 Feb 2025. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2022-49086 in the wild and no public exploit code.\n\nAffected product: Linux kernel. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2022-49086/ (Markdown: https://insights.sbomify.com/CVE-2022-49086/index.md)","id":"CVE-2022-49086","markdown":"https://insights.sbomify.com/CVE-2022-49086/index.md","name":"CVE-2022-49086","record":{"aliases":["DEBIAN-CVE-2022-49086","GHSA-jpcv-cqh9-hpf3","UBUNTU-CVE-2022-49086"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"A memory leak in the Linux kernel's Open vSwitch module allows attackers to cause denial of service via high-rate flow rotation.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":5.5,"severity":"medium","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-401","name":"Missing Release of Memory after Effective Lifetime"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: openvswitch: fix leak of nested actions\n\nWhile parsing user-provided actions, openvswitch module may dynamically\nallocate memory and store pointers in the internal copy of the actions.\nSo this memory has to be freed while destroying the actions.\n\nCurrently there are only two such actions: ct() and set().  However,\nthere are many actions that can hold nested lists of actions and\novs_nla_free_flow_actions() just jumps over them leaking the memory.\n\nFor example, removal of the flow with the following actions will lead\nto a leak of the memory allocated by nf_ct_tmpl_alloc():\n\n  actions:clone(ct(commit),0)\n\nNon-freed set() action may also leak the 'dst' structure for the\ntunnel info including device references.\n\nUnder certain conditions with a high rate of flow rotation that may\ncause significant memory leak problem (2MB per second in reporter's\ncase).  The problem is also hard to mitigate, because the user doesn't\nhave direct control over the datapath flows generated by OVS.\n\nFix that by iterating over all the nested actions and freeing\neverything that needs to be freed recursively.\n\nNew build time assertion should protect us from this problem if new\nactions will be added in the future.\n\nUnfortunately, openvswitch module doesn't use NLA_F_NESTED, so all\nattributes has to be explicitly checked.  sample() and clone() actions\nare mixing extra attributes into the user-provided action list.  That\nprevents some code generalization too.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"net: openvswitch: fix leak of nested actions","id":"CVE-2022-49086","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"denial_of_service","year":"2022"},"n_packages":0,"n_references":7,"next":{"headline":"rxrpc: fix a race in rxrpc_exit_net()","id":"CVE-2022-49087"},"packages":[],"prev":{"headline":"drbd: Fix five use after free bugs in get_initial_state","id":"CVE-2022-49085"},"products":["Linux"],"published":"2025-02-26","related":[{"cvss_score":8.8,"headline":"Linux Kernel Out-of-Bounds Write","id":"CVE-2026-53266","kev_date_added":"2026-09-18","published":"2026-06-25"},{"cvss_score":8.8,"headline":"Linux Kernel Improper Input Validation","id":"CVE-2013-6282","kev_date_added":"2022-09-15","published":"2013-11-19"},{"cvss_score":8.4,"headline":"Linux Kernel Heap-Based Buffer Overflow","id":"CVE-2022-0185","kev_date_added":"2024-08-21","published":"2022-02-11"},{"cvss_score":8.4,"headline":"Linux Kernel Privilege Escalation","id":"CVE-2013-2094","kev_date_added":"2022-09-15","published":"2013-05-14"},{"cvss_score":7.8,"headline":"Linux Kernel Unspecified","id":"CVE-2026-53362","kev_date_added":"2026-08-27","published":"2026-07-04"},{"cvss_score":7.8,"headline":"Linux Kernel Missing Initialization of a Variable","id":"CVE-2026-46300","kev_date_added":"2026-10-28","published":"2026-05-23"},{"cvss_score":7.8,"headline":"Linux Kernel Race Condition","id":"CVE-2025-39964","kev_date_added":"2026-09-18","published":"2025-10-13"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-05-11","vendors":["Linux"]},"summary":"A memory leak in the Linux kernel's Open vSwitch module allows attackers to cause denial of service via high-rate flow rotation.","url":"https://insights.sbomify.com/CVE-2022-49086/"}