{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-43201 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-43201 is a medium-severity 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-2026-43201 and fix it if it is affected.\n\nWhat it is: CVE-2026-43201 is a medium-severity 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-2026-43201 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-2026-43201/ (Markdown: https://insights.sbomify.com/CVE-2026-43201/index.md)","id":"CVE-2026-43201","markdown":"https://insights.sbomify.com/CVE-2026-43201/index.md","name":"CVE-2026-43201","record":{"aliases":["AZL-85886","BELL-CVE-2026-43201","DEBIAN-CVE-2026-43201","GHSA-2439-4xrr-7j2r","ROOT-OS-DEBIAN-11-CVE-2026-43201","ROOT-OS-DEBIAN-12-CVE-2026-43201","ROOT-OS-UBUNTU-2204-CVE-2026-43201","ROOT-OS-UBUNTU-2404-CVE-2026-43201","UBUNTU-CVE-2026-43201"],"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 missing bounds check in the Linux kernel's APEI/GHES ARM error handling allows a local attacker to cause a system crash via a malformed BIOS error record.","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":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\nAPEI/GHES: ARM processor Error: don't go past allocated memory\n\nIf the BIOS generates a very small ARM Processor Error, or\nan incomplete one, the current logic will fail to deferrence\n\n\terr-\u003esection_length\nand\n\tctx_info-\u003esize\n\nAdd checks to avoid that. With such changes, such GHESv2\nrecords won't cause OOPSes like this:\n\n[    1.492129] Internal error: Oops: 0000000096000005 [#1]  SMP\n[    1.495449] Modules linked in:\n[    1.495820] CPU: 0 UID: 0 PID: 9 Comm: kworker/0:0 Not tainted 6.18.0-rc1-00017-gabadcc3553dd-dirty #18 PREEMPT\n[    1.496125] Hardware name: QEMU QEMU Virtual Machine, BIOS unknown 02/02/2022\n[    1.496433] Workqueue: kacpi_notify acpi_os_execute_deferred\n[    1.496967] pstate: 814000c5 (Nzcv daIF +PAN -UAO -TCO +DIT -SSBS BTYPE=--)\n[    1.497199] pc : log_arm_hw_error+0x5c/0x200\n[    1.497380] lr : ghes_handle_arm_hw_error+0x94/0x220\n\n0xffff8000811c5324 is in log_arm_hw_error (../drivers/ras/ras.c:75).\n70\t\terr_info = (struct cper_arm_err_info *)(err + 1);\n71\t\tctx_info = (struct cper_arm_ctx_info *)(err_info + err-\u003eerr_info_num);\n72\t\tctx_err = (u8 *)ctx_info;\n73\n74\t\tfor (n = 0; n \u003c err-\u003econtext_info_num; n++) {\n75\t\t\tsz = sizeof(struct cper_arm_ctx_info) + ctx_info-\u003esize;\n76\t\t\tctx_info = (struct cper_arm_ctx_info *)((long)ctx_info + sz);\n77\t\t\tctx_len += sz;\n78\t\t}\n79\n\nand similar ones while trying to access section_length on an\nerror dump with too small size.\n\n[ rjw: Subject tweaks ]","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":"APEI/GHES: ARM processor Error: don't go past allocated memory","id":"CVE-2026-43201","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"null_dereference","year":"2026"},"n_packages":0,"n_references":4,"next":{"headline":"fbdev: vt8500lcdfb: fix missing dma_free_coherent()","id":"CVE-2026-43202"},"packages":[],"prev":{"headline":"PCI: endpoint: Fix swapped parameters in pci_{primary/secondary}_epc_epf_unlink() functions","id":"CVE-2026-43200"},"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":"2026-05-23","vendors":["Linux"]},"summary":"A missing bounds check in the Linux kernel's APEI/GHES ARM error handling allows a local attacker to cause a system crash via a malformed BIOS error record.","url":"https://insights.sbomify.com/CVE-2026-43201/"}