{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2024-26786 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2024-26786 is a high-severity vulnerability in Linux kernel, published on 4 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-2024-26786 and fix it if it is affected.\n\nWhat it is: CVE-2024-26786 is a high-severity vulnerability in Linux kernel, published on 4 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-2024-26786 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-2024-26786/ (Markdown: https://insights.sbomify.com/CVE-2024-26786/index.md)","id":"CVE-2024-26786","markdown":"https://insights.sbomify.com/CVE-2024-26786/index.md","name":"CVE-2024-26786","record":{"aliases":["BELL-CVE-2024-26786","DEBIAN-CVE-2024-26786","GHSA-jv67-jxg9-q8v4","UBUNTU-CVE-2024-26786"],"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 local attacker can trigger a kernel warning and potential crash in the iommufd subsystem due to an ID overwrite bug, causing denial of service.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[{"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\niommufd: Fix iopt_access_list_id overwrite bug\n\nSyzkaller reported the following WARN_ON:\n  WARNING: CPU: 1 PID: 4738 at drivers/iommu/iommufd/io_pagetable.c:1360\n\n  Call Trace:\n   iommufd_access_change_ioas+0x2fe/0x4e0\n   iommufd_access_destroy_object+0x50/0xb0\n   iommufd_object_remove+0x2a3/0x490\n   iommufd_object_destroy_user\n   iommufd_access_destroy+0x71/0xb0\n   iommufd_test_staccess_release+0x89/0xd0\n   __fput+0x272/0xb50\n   __fput_sync+0x4b/0x60\n   __do_sys_close\n   __se_sys_close\n   __x64_sys_close+0x8b/0x110\n   do_syscall_x64\n\nThe mismatch between the access pointer in the list and the passed-in\npointer is resulting from an overwrite of access-\u003eiopt_access_list_id, in\niopt_add_access(). Called from iommufd_access_change_ioas() when\nxa_alloc() succeeds but iopt_calculate_iova_alignment() fails.\n\nAdd a new_id in iopt_add_access() and only update iopt_access_list_id when\nreturning successfully.","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":"iommufd: Fix iopt_access_list_id overwrite bug","id":"CVE-2024-26786","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"null_dereference","year":"2024"},"n_packages":0,"n_references":3,"next":{"headline":"mmc: mmci: stm32: fix DMA API overlapping mappings warning","id":"CVE-2024-26787"},"packages":[],"prev":{"headline":"iommufd: Fix protection fault in iommufd_test_syz_conv_iova","id":"CVE-2024-26785"},"products":["Linux"],"published":"2024-04-04","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":"2026-08-05","vendors":["Linux"]},"summary":"A local attacker can trigger a kernel warning and potential crash in the iommufd subsystem due to an ID overwrite bug, causing denial of service.","url":"https://insights.sbomify.com/CVE-2024-26786/"}