{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-43115 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-43115 is a medium-severity use after free vulnerability in Linux kernel, published on 6 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-2026-43115 and fix it if it is affected.\n\nWhat it is: CVE-2026-43115 is a medium-severity use after free vulnerability in Linux kernel, published on 6 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-2026-43115 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-2026-43115/ (Markdown: https://insights.sbomify.com/CVE-2026-43115/index.md)","id":"CVE-2026-43115","markdown":"https://insights.sbomify.com/CVE-2026-43115/index.md","name":"CVE-2026-43115","record":{"aliases":["BELL-CVE-2026-43115","DEBIAN-CVE-2026-43115","GHSA-vj6f-v49f-r83x","ROOT-OS-DEBIAN-11-CVE-2026-43115","ROOT-OS-DEBIAN-12-CVE-2026-43115","ROOT-OS-DEBIAN-13-CVE-2026-43115","ROOT-OS-UBUNTU-2204-CVE-2026-43115","ROOT-OS-UBUNTU-2404-CVE-2026-43115","UBUNTU-CVE-2026-43115"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["code_execution","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel","requires_auth":"low_privilege","summary":"A use-after-free vulnerability in the Linux kernel's tiny SRCU implementation allows attackers to potentially execute code or cause a denial of service.","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":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":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nsrcu: Use irq_work to start GP in tiny SRCU\n\nTiny SRCU's srcu_gp_start_if_needed() directly calls schedule_work(),\nwhich acquires the workqueue pool-\u003elock.\n\nThis causes a lockdep splat when call_srcu() is called with a scheduler\nlock held, due to:\n\n  call_srcu() [holding pi_lock]\n    srcu_gp_start_if_needed()\n      schedule_work() -\u003e pool-\u003elock\n\n  workqueue_init() / create_worker() [holding pool-\u003elock]\n    wake_up_process() -\u003e try_to_wake_up() -\u003e pi_lock\n\nAlso add irq_work_sync() to cleanup_srcu_struct() to prevent a\nuse-after-free if a queued irq_work fires after cleanup begins.\n\nTested with rcutorture SRCU-T and no lockdep warnings.\n\n[ Thanks to Boqun for similar fix in patch \"rcu: Use an intermediate irq_work\nto start process_srcu()\" ]","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":"srcu: Use irq_work to start GP in tiny SRCU","id":"CVE-2026-43115","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":"netfilter: ctnetlink: ensure safe access to master conntrack","id":"CVE-2026-43116"},"packages":[],"prev":{"headline":"netfilter: nft_set_pipapo_avx2: don't return non-matching entry on expiry","id":"CVE-2026-43114"},"products":["Linux"],"published":"2026-05-06","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":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-21","vendors":["Linux"]},"summary":"A use-after-free vulnerability in the Linux kernel's tiny SRCU implementation allows attackers to potentially execute code or cause a denial of service.","url":"https://insights.sbomify.com/CVE-2026-43115/"}