{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-72403 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-72403 is a vulnerability in Linux, published on 15 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-72403 and fix it if it is affected.\n\nWhat it is: CVE-2026-72403 is a vulnerability in Linux, published on 15 Aug 2026. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-72403 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-2026-72403/ (Markdown: https://insights.sbomify.com/CVE-2026-72403/index.md)","id":"CVE-2026-72403","markdown":"https://insights.sbomify.com/CVE-2026-72403/index.md","name":"CVE-2026-72403","record":{"aliases":["BELL-CVE-2026-72403","DEBIAN-CVE-2026-72403","GHSA-fr6v-fcwq-3cgm","UBUNTU-CVE-2026-72403"],"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":"none","summary":"A malformed USB device can trigger a NULL pointer dereference in the Linux kernel ALSA FCP driver, causing a system crash.","user_interaction":"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\nALSA: FCP: Fix NULL pointer dereference in interface lookup\n\nA malformed USB device can provide a vendor-specific interface without\nany endpoint descriptors. fcp_find_fc_interface() currently selects the\nfirst vendor-specific interface and reads endpoint 0 from it, without\nchecking whether the interface actually has any endpoints.\n\nWhen bNumEndpoints is zero, no endpoint array is allocated for the parsed\nalternate setting, so get_endpoint(..., 0) yields an invalid endpoint\ndescriptor pointer. Dereferencing it through usb_endpoint_num() then\ntriggers a NULL pointer dereference.\n\nSkip vendor-specific interfaces that do not have any endpoints.","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":"ALSA: FCP: Fix NULL pointer dereference in interface lookup","id":"CVE-2026-72403","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"null_dereference","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"tipc: fix UAF in cleanup_bearer() due to premature dst_cache_destroy()","id":"CVE-2026-72404"},"packages":[],"prev":{"headline":"bpf: Mask pseudo pointer values in verifier logs","id":"CVE-2026-72402"},"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 malformed USB device can trigger a NULL pointer dereference in the Linux kernel ALSA FCP driver, causing a system crash.","url":"https://insights.sbomify.com/CVE-2026-72403/"}