{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2024-43869 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2024-43869 is a medium-severity memory corruption vulnerability in Linux kernel, published on 21 Aug 2024. 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-2024-43869 and fix it if it is affected.\n\nWhat it is: CVE-2024-43869 is a medium-severity memory corruption vulnerability in Linux kernel, published on 21 Aug 2024. 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-2024-43869 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-2024-43869/ (Markdown: https://insights.sbomify.com/CVE-2024-43869/index.md)","id":"CVE-2024-43869","markdown":"https://insights.sbomify.com/CVE-2024-43869/index.md","name":"CVE-2024-43869","record":{"aliases":["BELL-CVE-2024-43869","DEBIAN-CVE-2024-43869","GHSA-9vrp-98c8-qqx8","UBUNTU-CVE-2024-43869"],"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 perf subsystem can lead to resource exhaustion and denial of service.","user_interaction":"not_required","vuln_class":"memory_corruption"},"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\nperf: Fix event leak upon exec and file release\n\nThe perf pending task work is never waited upon the matching event\nrelease. In the case of a child event, released via free_event()\ndirectly, this can potentially result in a leaked event, such as in the\nfollowing scenario that doesn't even require a weak IRQ work\nimplementation to trigger:\n\nschedule()\n   prepare_task_switch()\n=======\u003e \u003cNMI\u003e\n      perf_event_overflow()\n         event-\u003epending_sigtrap = ...\n         irq_work_queue(\u0026event-\u003epending_irq)\n\u003c======= \u003c/NMI\u003e\n      perf_event_task_sched_out()\n          event_sched_out()\n              event-\u003epending_sigtrap = 0;\n              atomic_long_inc_not_zero(\u0026event-\u003erefcount)\n              task_work_add(\u0026event-\u003epending_task)\n   finish_lock_switch()\n=======\u003e \u003cIRQ\u003e\n   perf_pending_irq()\n      //do nothing, rely on pending task work\n\u003c======= \u003c/IRQ\u003e\n\nbegin_new_exec()\n   perf_event_exit_task()\n      perf_event_exit_event()\n         // If is child event\n         free_event()\n            WARN(atomic_long_cmpxchg(\u0026event-\u003erefcount, 1, 0) != 1)\n            // event is leaked\n\nSimilar scenarios can also happen with perf_event_remove_on_exec() or\nsimply against concurrent perf_event_release().\n\nFix this with synchonizing against the possibly remaining pending task\nwork while freeing the event, just like is done with remaining pending\nIRQ work. This means that the pending task callback neither need nor\nshould hold a reference to the event, preventing it from ever beeing\nfreed.","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":"perf: Fix event leak upon exec and file release","id":"CVE-2024-43869","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"memory_corruption","year":"2024"},"n_packages":0,"n_references":5,"next":{"headline":"perf: Fix event leak upon exit","id":"CVE-2024-43870"},"packages":[],"prev":{"headline":"riscv/purgatory: align riscv_kernel_entry","id":"CVE-2024-43868"},"products":["Linux"],"published":"2024-08-21","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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-05-23","vendors":["Linux"]},"summary":"A memory leak in the Linux kernel perf subsystem can lead to resource exhaustion and denial of service.","url":"https://insights.sbomify.com/CVE-2024-43869/"}