{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-72013 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-72013 is a vulnerability in Linux, published on 15 Aug 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-2026-72013 and fix it if it is affected.\n\nWhat it is: CVE-2026-72013 is a vulnerability in Linux, published on 15 Aug 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-2026-72013 in the wild and no public exploit code.\n\nAffected product: 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-2026-72013/ (Markdown: https://insights.sbomify.com/CVE-2026-72013/index.md)","id":"CVE-2026-72013","markdown":"https://insights.sbomify.com/CVE-2026-72013/index.md","name":"CVE-2026-72013","record":{"aliases":["BELL-CVE-2026-72013","DEBIAN-CVE-2026-72013","GHSA-55xj-694j-8fjq","UBUNTU-CVE-2026-72013"],"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":"high_privilege","summary":"A local attacker with high privileges can cause a denial of service via a NULL pointer dereference in the RISC-V kexec preparation code.","user_interaction":"not_required","vuln_class":"null_dereference"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nriscv: Prevent NULL pointer dereference in machine_kexec_prepare()\n\nA NULL pointer dereference issue is noticed in riscv's\nmachine_kexec_prepare(), where image-\u003esegment[i].buf might be NULL and\ncopied unchecked.\n\nThe NULL buf comes from ima_add_kexec_buffer(), where kbuf is added by\nkexec_add_buffer(), but kbuf.buffer is NULL, then it is copied without\na check in machine_kexec_prepare():\n\n  kexec_file_load\n    -\u003e kimage_file_alloc_init()\n       -\u003e kimage_file_prepare_segments()\n          -\u003e ima_add_kexec_buffer()\n             -\u003e kexec_add_buffer()\n    -\u003e machine_kexec_prepare()\n       -\u003e memcpy()\n\nAddress this by adding a check before the data copy attempt.","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":"riscv: Prevent NULL pointer dereference in machine_kexec_prepare()","id":"CVE-2026-72013","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"null_dereference","year":"2026"},"n_packages":0,"n_references":7,"next":{"headline":"drbd: reject data replies with an out-of-range payload size","id":"CVE-2026-72014"},"packages":[],"prev":{"headline":"tracing/osnoise: Call synchronize_rcu() when unregistering","id":"CVE-2026-72012"},"products":["Linux"],"published":"2026-08-15","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-08-17","vendors":["Linux"]},"summary":"A local attacker with high privileges can cause a denial of service via a NULL pointer dereference in the RISC-V kexec preparation code.","url":"https://insights.sbomify.com/CVE-2026-72013/"}