{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-64351 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-64351 is a medium-severity vulnerability in Linux kernel, published on 25 Jul 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-2026-64351 and fix it if it is affected.\n\nWhat it is: CVE-2026-64351 is a medium-severity vulnerability in Linux kernel, published on 25 Jul 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-2026-64351 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-2026-64351/ (Markdown: https://insights.sbomify.com/CVE-2026-64351/index.md)","id":"CVE-2026-64351","markdown":"https://insights.sbomify.com/CVE-2026-64351/index.md","name":"CVE-2026-64351","record":{"aliases":["AZL-93683","BELL-CVE-2026-64351","DEBIAN-CVE-2026-64351","GHSA-8qc4-xrrp-xx3v","ROOT-OS-UBUNTU-2204-CVE-2026-64351","UBUNTU-CVE-2026-64351"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["data_read","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel USB driver","requires_auth":"low_privilege","summary":"A malicious USB device can trigger an integer underflow in the kalmia driver, leading to out-of-bounds reads and potential system crashes.","user_interaction":"not_required","vuln_class":"integer_overflow"},"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\nnet: usb: kalmia: bound RX frame length in kalmia_rx_fixup()\n\nkalmia_rx_fixup() computes usb_packet_length = skb-\u003elen - (2 *\nKALMIA_HEADER_LENGTH) as a u16, guarded only by a pre-loop check that\nskb-\u003elen is at least KALMIA_HEADER_LENGTH, which is 6. A device can\ndeliver a short bulk-IN frame with skb-\u003elen in the 6 to 11 range, or\nleave a short trailing remainder on a later loop iteration. Either case\nunderflows usb_packet_length to about 65530.\n\nThat bypasses the usb_packet_length \u003c ether_packet_length truncation path.\nThe device-supplied ether_packet_length, a le16 up to 65535 read from\nheader_start[2], then drives a memcmp() and the following skb_trim() and\nskb_pull() past the end of the rx buffer. The rx buffer is hard_mtu * 10,\nwhich is 14000 bytes. That is an out of bounds read.\n\nRequire both the start and end framing headers to be present before\nsubtracting them, on every loop iteration.","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":"net: usb: kalmia: bound RX frame length in kalmia_rx_fixup()","id":"CVE-2026-64351","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":"linux:linux_kernel","products":["linux:linux_kernel"],"type":"integer_overflow","year":"2026"},"n_packages":0,"n_references":8,"next":{"headline":"bpf: Allow LPM map access from sleepable BPF programs","id":"CVE-2026-64352"},"packages":[],"prev":{"headline":"usb: cdnsp: fix stream context array leak in cdnsp_alloc_stream_info()","id":"CVE-2026-64350"},"products":["Linux"],"published":"2026-07-25","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":"2026-08-17","vendors":["Linux"]},"summary":"A malicious USB device can trigger an integer underflow in the kalmia driver, leading to out-of-bounds reads and potential system crashes.","url":"https://insights.sbomify.com/CVE-2026-64351/"}