{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-23031 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-23031 is a memory corruption vulnerability in Linux, published on 31 Jan 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-2026-23031 and fix it if it is affected.\n\nWhat it is: CVE-2026-23031 is a memory corruption vulnerability in Linux, published on 31 Jan 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-2026-23031 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-2026-23031/ (Markdown: https://insights.sbomify.com/CVE-2026-23031/index.md)","id":"CVE-2026-23031","markdown":"https://insights.sbomify.com/CVE-2026-23031/index.md","name":"CVE-2026-23031","record":{"aliases":["AZL-77334","BELL-CVE-2026-23031","DEBIAN-CVE-2026-23031","GHSA-gvm4-5v6x-vmv9","ROOT-OS-DEBIAN-11-CVE-2026-23031","ROOT-OS-DEBIAN-12-CVE-2026-23031","ROOT-OS-DEBIAN-13-CVE-2026-23031","ROOT-OS-UBUNTU-2204-CVE-2026-23031","ROOT-OS-UBUNTU-2404-CVE-2026-23031","UBUNTU-CVE-2026-23031"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel driver","requires_auth":"none","summary":"A memory leak in the Linux kernel gs_usb driver allows local attackers to cause denial of service by exhausting kernel memory.","user_interaction":"not_required","vuln_class":"memory_corruption"},"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\ncan: gs_usb: gs_usb_receive_bulk_callback(): fix URB memory leak\n\nIn gs_can_open(), the URBs for USB-in transfers are allocated, added to the\nparent-\u003erx_submitted anchor and submitted. In the complete callback\ngs_usb_receive_bulk_callback(), the URB is processed and resubmitted. In\ngs_can_close() the URBs are freed by calling\nusb_kill_anchored_urbs(parent-\u003erx_submitted).\n\nHowever, this does not take into account that the USB framework unanchors\nthe URB before the complete function is called. This means that once an\nin-URB has been completed, it is no longer anchored and is ultimately not\nreleased in gs_can_close().\n\nFix the memory leak by anchoring the URB in the\ngs_usb_receive_bulk_callback() to the parent-\u003erx_submitted anchor.","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":"can: gs_usb: gs_usb_receive_bulk_callback(): fix URB memory leak","id":"CVE-2026-23031","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":6,"next":{"headline":"null_blk: fix kmemleak by releasing references to fault configfs items","id":"CVE-2026-23032"},"packages":[],"prev":{"headline":"phy: rockchip: inno-usb2: Fix a double free bug in rockchip_usb2phy_probe()","id":"CVE-2026-23030"},"products":["Linux"],"published":"2026-01-31","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":"2026-06-02","vendors":["Linux"]},"summary":"A memory leak in the Linux kernel gs_usb driver allows local attackers to cause denial of service by exhausting kernel memory.","url":"https://insights.sbomify.com/CVE-2026-23031/"}