{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-46084 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-46084 is a high-severity use after free vulnerability in Linux kernel, published on 27 May 2026. 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-2026-46084 and fix it if it is affected.\n\nWhat it is: CVE-2026-46084 is a high-severity use after free vulnerability in Linux kernel, published on 27 May 2026. 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-2026-46084 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-2026-46084/ (Markdown: https://insights.sbomify.com/CVE-2026-46084/index.md)","id":"CVE-2026-46084","markdown":"https://insights.sbomify.com/CVE-2026-46084/index.md","name":"CVE-2026-46084","record":{"aliases":["AZL-88673","BELL-CVE-2026-46084","DEBIAN-CVE-2026-46084","GHSA-996r-prhc-hfj8","ROOT-OS-UBUNTU-2404-CVE-2026-46084","UBUNTU-CVE-2026-46084"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel driver","requires_auth":"low_privilege","summary":"A use-after-free vulnerability in the Linux kernel's RDMA/mana_ib driver allows stale steering configurations to cause kernel warnings and potential instability when RSS QPs are destroyed.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":7.8,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-416","name":"Use After Free"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/mana_ib: Disable RX steering on RSS QP destroy\n\nWhen an RSS QP is destroyed (e.g. DPDK exit), mana_ib_destroy_qp_rss()\ndestroys the RX WQ objects but does not disable vPort RX steering in\nfirmware. This leaves stale steering configuration that still points to\nthe destroyed RX objects.\n\nIf traffic continues to arrive (e.g. peer VM is still transmitting) and\nthe VF interface is subsequently brought up (mana_open), the firmware\nmay deliver completions using stale CQ IDs from the old RX objects.\nThese CQ IDs can be reused by the ethernet driver for new TX CQs,\ncausing RX completions to land on TX CQs:\n\n  WARNING: mana_poll_tx_cq+0x1b8/0x220 [mana]  (is_sq == false)\n  WARNING: mana_gd_process_eq_events+0x209/0x290 (cq_table lookup fails)\n\nFix this by disabling vPort RX steering before destroying RX WQ objects.\nNote that mana_fence_rqs() cannot be used here because the fence\ncompletion is delivered on the CQ, which is polled by user-mode (e.g.\nDPDK) and not visible to the kernel driver.\n\nRefactor the disable logic into a shared mana_disable_vport_rx() in\nmana_en, exported for use by mana_ib, replacing the duplicate code.\nThe ethernet driver's mana_dealloc_queues() is also updated to call\nthis common function.","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":"RDMA/mana_ib: Disable RX steering on RSS QP destroy","id":"CVE-2026-46084","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"use_after_free","year":"2026"},"n_packages":0,"n_references":5,"next":{"headline":"rxrpc: Fix rxkad crypto unalignment handling","id":"CVE-2026-46085"},"packages":[],"prev":{"headline":"spi: fix resource leaks on device setup failure","id":"CVE-2026-46083"},"products":["Linux"],"published":"2026-05-27","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":"2026-06-14","vendors":["Linux"]},"summary":"A use-after-free vulnerability in the Linux kernel's RDMA/mana_ib driver allows stale steering configurations to cause kernel warnings and potential instability when RSS QPs are destroyed.","url":"https://insights.sbomify.com/CVE-2026-46084/"}