{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-63948 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-63948 is a memory corruption vulnerability in Linux, published on 19 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-2026-63948 and fix it if it is affected.\n\nWhat it is: CVE-2026-63948 is a memory corruption vulnerability in Linux, published on 19 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-2026-63948 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-2026-63948/ (Markdown: https://insights.sbomify.com/CVE-2026-63948/index.md)","id":"CVE-2026-63948","markdown":"https://insights.sbomify.com/CVE-2026-63948/index.md","name":"CVE-2026-63948","record":{"aliases":["BELL-CVE-2026-63948","DEBIAN-CVE-2026-63948","GHSA-jg7r-p8w6-9pmq","ROOT-OS-UBUNTU-2204-CVE-2026-63948","UBUNTU-CVE-2026-63948"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel Bluetooth","requires_auth":"none","summary":"A reference leak in the Linux kernel Bluetooth L2CAP module can lead to memory exhaustion and denial of service.","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\nBluetooth: L2CAP: fix chan ref leak in l2cap_chan_timeout() on !conn\n\n__set_chan_timer() takes a l2cap_chan reference via l2cap_chan_hold()\nbefore scheduling the delayed work.  The normal path in\nl2cap_chan_timeout() drops this reference with l2cap_chan_put() at the\nend, but the early return when chan-\u003econn is NULL skips the put,\nleaking the reference.\n\nAdd the missing l2cap_chan_put() before the early return.","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":"Bluetooth: L2CAP: fix chan ref leak in l2cap_chan_timeout() on !conn","id":"CVE-2026-63948","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"memory_corruption","year":"2026"},"n_packages":0,"n_references":8,"next":{"headline":"auxdisplay: line-display: fix OOB read on zero-length message_store()","id":"CVE-2026-63949"},"packages":[],"prev":{"headline":"Bluetooth: HIDP: fix missing length checks in hidp_input_report()","id":"CVE-2026-63947"},"products":["Linux"],"published":"2026-07-19","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":"2026-07-19","vendors":["Linux"]},"summary":"A reference leak in the Linux kernel Bluetooth L2CAP module can lead to memory exhaustion and denial of service.","url":"https://insights.sbomify.com/CVE-2026-63948/"}