{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2024-26812 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2024-26812 is a high-severity vulnerability in Debian Debian Linux, published on 5 Apr 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-2024-26812 and fix it if it is affected.\n\nWhat it is: CVE-2024-26812 is a high-severity vulnerability in Debian Debian Linux, published on 5 Apr 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-2024-26812 in the wild and no public exploit code.\n\nAffected product: Debian Debian Linux. 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-2024-26812/ (Markdown: https://insights.sbomify.com/CVE-2024-26812/index.md)","id":"CVE-2024-26812","markdown":"https://insights.sbomify.com/CVE-2024-26812/index.md","name":"CVE-2024-26812","record":{"aliases":["AZL-58836","BELL-CVE-2024-26812","DEBIAN-CVE-2024-26812","GHSA-p8g6-7v7w-4whg","UBUNTU-CVE-2024-26812"],"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 null pointer dereference in the Linux kernel VFIO PCI driver allows local attackers to cause a denial of service via specific interrupt handling sequences.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"product":"debian_linux","vendor":"debian"},{"product":"linux_kernel","vendor":"linux"}],"cvss":{"score":7.8,"severity":"high","source":"cna","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-476","name":"NULL Pointer Dereference"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nvfio/pci: Create persistent INTx handler\n\nA vulnerability exists where the eventfd for INTx signaling can be\ndeconfigured, which unregisters the IRQ handler but still allows\neventfds to be signaled with a NULL context through the SET_IRQS ioctl\nor through unmask irqfd if the device interrupt is pending.\n\nIdeally this could be solved with some additional locking; the igate\nmutex serializes the ioctl and config space accesses, and the interrupt\nhandler is unregistered relative to the trigger, but the irqfd path\nruns asynchronous to those.  The igate mutex cannot be acquired from the\natomic context of the eventfd wake function.  Disabling the irqfd\nrelative to the eventfd registration is potentially incompatible with\nexisting userspace.\n\nAs a result, the solution implemented here moves configuration of the\nINTx interrupt handler to track the lifetime of the INTx context object\nand irq_type configuration, rather than registration of a particular\ntrigger eventfd.  Synchronization is added between the ioctl path and\neventfd_signal() wrapper such that the eventfd trigger can be\ndynamically updated relative to in-flight interrupts or irqfd callbacks.","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":"vfio/pci: Create persistent INTx handler","id":"CVE-2024-26812","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"debian:debian_linux","products":["debian:debian_linux","linux:linux_kernel"],"type":"null_dereference","year":"2024"},"n_packages":0,"n_references":8,"next":{"headline":"vfio/platform: Create persistent IRQ handlers","id":"CVE-2024-26813"},"packages":[],"prev":{"headline":"ksmbd: validate payload size in ipc response","id":"CVE-2024-26811"},"products":["Linux"],"published":"2024-04-05","related":[{"cvss_score":10,"headline":"ProFTPD Improper Access Control","id":"CVE-2015-3306","kev_date_added":"2026-10-08","published":"2015-05-18"},{"cvss_score":9.9,"headline":"RoundCube Webmail Deserialization of Untrusted Data","id":"CVE-2025-49113","kev_date_added":"2026-02-20","published":"2025-06-02"},{"cvss_score":9.8,"headline":"GNU InetUtils Argument Injection","id":"CVE-2026-24061","kev_date_added":"2026-01-26","published":"2026-01-21"},{"cvss_score":9.8,"headline":"Linux Kernel Improper Check for Unusual or Exceptional Conditions","id":"CVE-2025-39682","kev_date_added":"2026-09-18","published":"2025-09-05"},{"cvss_score":9.8,"headline":"Mozilla Firefox Use-After-Free","id":"CVE-2024-9680","kev_date_added":"2024-10-15","published":"2024-10-09"},{"cvss_score":9.8,"headline":"RARLAB UnRAR Directory Traversal","id":"CVE-2022-30333","kev_date_added":"2022-08-09","published":"2022-05-09"},{"cvss_score":9.8,"headline":"Roundcube Webmail SQL Injection","id":"CVE-2021-44026","kev_date_added":"2023-06-22","published":"2021-11-19"}],"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":"2026-10-15","vendors":["Linux"]},"summary":"A null pointer dereference in the Linux kernel VFIO PCI driver allows local attackers to cause a denial of service via specific interrupt handling sequences.","url":"https://insights.sbomify.com/CVE-2024-26812/"}