{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2024-57951 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2024-57951 is a high-severity use after free vulnerability in Linux kernel, published on 12 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-2024-57951 and fix it if it is affected.\n\nWhat it is: CVE-2024-57951 is a high-severity use after free vulnerability in Linux kernel, published on 12 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-2024-57951 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-2024-57951/ (Markdown: https://insights.sbomify.com/CVE-2024-57951/index.md)","id":"CVE-2024-57951","markdown":"https://insights.sbomify.com/CVE-2024-57951/index.md","name":"CVE-2024-57951","record":{"aliases":["AZL-56803","AZL-56842","BELL-CVE-2024-57951","DEBIAN-CVE-2024-57951","GHSA-5j5f-9wh9-hfj9","UBUNTU-CVE-2024-57951"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service","code_execution"],"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 hrtimer subsystem during CPU hotplug operations can lead to system crashes or potential code execution.","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":"cisa-adp","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\nhrtimers: Handle CPU state correctly on hotplug\n\nConsider a scenario where a CPU transitions from CPUHP_ONLINE to halfway\nthrough a CPU hotunplug down to CPUHP_HRTIMERS_PREPARE, and then back to\nCPUHP_ONLINE:\n\nSince hrtimers_prepare_cpu() does not run, cpu_base.hres_active remains set\nto 1 throughout. However, during a CPU unplug operation, the tick and the\nclockevents are shut down at CPUHP_AP_TICK_DYING. On return to the online\nstate, for instance CFS incorrectly assumes that the hrtick is already\nactive, and the chance of the clockevent device to transition to oneshot\nmode is also lost forever for the CPU, unless it goes back to a lower state\nthan CPUHP_HRTIMERS_PREPARE once.\n\nThis round-trip reveals another issue; cpu_base.online is not set to 1\nafter the transition, which appears as a WARN_ON_ONCE in enqueue_hrtimer().\n\nAside of that, the bulk of the per CPU state is not reset either, which\nmeans there are dangling pointers in the worst case.\n\nAddress this by adding a corresponding startup() callback, which resets the\nstale per CPU state and sets the online flag.\n\n[ tglx: Make the new callback unconditionally available, remove the online\n  \tmodification in the prepare() callback and clear the remaining\n  \tstate in the starting callback instead of the prepare callback ]","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":"hrtimers: Handle CPU state correctly on hotplug","id":"CVE-2024-57951","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"use_after_free","year":"2024"},"n_packages":0,"n_references":7,"next":{"headline":"Revert \"libfs: fix infinite directory reads for offset dir\"","id":"CVE-2024-57952"},"packages":[],"prev":{"headline":"drm/amd/display: Initialize denominator defaults to 1","id":"CVE-2024-57950"},"products":["Linux"],"published":"2025-02-12","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":"total"},"state":"PUBLISHED","updated":"2026-10-15","vendors":["Linux"]},"summary":"A use-after-free vulnerability in the Linux kernel's hrtimer subsystem during CPU hotplug operations can lead to system crashes or potential code execution.","url":"https://insights.sbomify.com/CVE-2024-57951/"}