{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-68189 in the wild and no public exploit code.","fix":"Apply the vendor's patch.","what":"CVE-2026-68189 is a high-severity use after free vulnerability in Linux, published on 10 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-2026-68189 and fix it if it is affected.\n\nWhat it is: CVE-2026-68189 is a high-severity use after free vulnerability in Linux, published on 10 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-2026-68189 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-2026-68189/ (Markdown: https://insights.sbomify.com/CVE-2026-68189/index.md)","id":"CVE-2026-68189","markdown":"https://insights.sbomify.com/CVE-2026-68189/index.md","name":"CVE-2026-68189","record":{"aliases":["BELL-CVE-2026-68189","DEBIAN-CVE-2026-68189","GHSA-jprq-4ghp-p3f9","UBUNTU-CVE-2026-68189"],"analysis":{"component_type":"kernel","fix_type":"patch","impacts":["code_execution","denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Linux kernel Bluetooth","requires_auth":"low_privilege","summary":"A race condition in the Linux kernel Bluetooth subsystem allows a use-after-free, potentially leading to code execution or system crash.","user_interaction":"not_required","vuln_class":"use_after_free"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Linux","cpe":[],"cvss":{"score":7.8,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-362","name":"Concurrent Execution using Shared Resource with Improper Synchronization"}],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: hci_sync: Protect UUID list traversal\n\nThe hci_sync conversion moved class-of-device and EIR generation from an\nHCI request built under hdev-\u003elock to asynchronous command sync work.\nThe worker holds hdev-\u003ereq_lock, but that lock does not serialize access\nto hdev-\u003euuids against add_uuid() and remove_uuid(), which update the\nlist under hdev-\u003elock.\n\nThe following interleaving can therefore occur:\n\n  CPU0 (command sync work)       CPU1 (management socket)\n  fetch uuid from the list\n                                list_del(\u0026uuid-\u003elist)\n                                kfree(uuid)\n  read uuid-\u003esize\n\nKASAN reports the resulting use-after-free:\n\n  BUG: KASAN: slab-use-after-free in eir_create+0xb8f/0xee0\n  Read of size 1 at addr ffff88810dbd8620 by task kworker/u17:0/87\n  Workqueue: hci0 hci_cmd_sync_work\n  Call Trace:\n   eir_create+0xb8f/0xee0\n   hci_update_eir_sync+0x1c0/0x330\n   hci_cmd_sync_work+0x13c/0x290\n   process_one_work+0x63a/0x1070\n   worker_thread+0x45b/0xd10\n\n  Allocated by task 86:\n   __kasan_kmalloc+0x8f/0xa0\n   add_uuid+0x18a/0x4b0\n   hci_sock_sendmsg+0x1033/0x1ea0\n\n  Freed by task 92:\n   __kasan_slab_free+0x43/0x70\n   kfree+0x131/0x3c0\n   remove_uuid+0x25e/0x560\n   hci_sock_sendmsg+0x1033/0x1ea0\n\nHold hdev-\u003elock while generating and committing the class-of-device and\nEIR snapshots.  Release it before sending an HCI command, so controller\nwaits do not happen under the device lock.  This protects all UUID list\nwalks in these paths and restores the serialization lost in the command\nsync conversion.","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: hci_sync: Protect UUID list traversal","id":"CVE-2026-68189","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"use_after_free","year":"2026"},"n_packages":0,"n_references":6,"next":{"headline":"staging: rtl8723bs: fix OOB reads in rtw_get_wps_ie()","id":"CVE-2026-68190"},"packages":[],"prev":{"headline":"Bluetooth: RFCOMM: Fix session UAF in set_termios","id":"CVE-2026-68188"},"products":["Linux"],"published":"2026-08-10","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-10-19","vendors":["Linux"]},"summary":"A race condition in the Linux kernel Bluetooth subsystem allows a use-after-free, potentially leading to code execution or system crash.","url":"https://insights.sbomify.com/CVE-2026-68189/"}