{"id":"CVE-2023-54214","summary":"Bluetooth: L2CAP: Fix potential user-after-free","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: Fix potential user-after-free\n\nThis fixes all instances of which requires to allocate a buffer calling\nalloc_skb which may release the chan lock and reacquire later which\nmakes it possible that the chan is disconnected in the meantime.","modified":"2026-05-18T05:56:21.213591926Z","published":"2025-12-30T12:11:11.383Z","related":["SUSE-SU-2026:0263-1","SUSE-SU-2026:0316-1","SUSE-SU-2026:0317-1","SUSE-SU-2026:0411-1","SUSE-SU-2026:0617-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54214.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/31a288a4df7f6a28e65da22a4ab2add4a963738e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/60aaccf16d1e099c16bebfb96428ae762cb528f7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/64e28ecf44e46de9f01915a4146706a21c3469d2"},{"type":"WEB","url":"https://git.kernel.org/stable/c/994e3e18908f5c4a12d07b44018e6aa85f071048"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a6a7d1541fefddf7ca0cfb34c1bff63ff809cc49"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b2fde8cb2a25125111f2144604e0e7c0ebcc4bba"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b8ed41cc04fb74005aa51d17865ca3d022760335"},{"type":"WEB","url":"https://git.kernel.org/stable/c/df5703348813235874d851934e957c3723d71644"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54214.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-54214"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"a6a5568c03c4805d4d250f6bd9d468eeeb4ea059"},{"fixed":"b2fde8cb2a25125111f2144604e0e7c0ebcc4bba"},{"fixed":"a6a7d1541fefddf7ca0cfb34c1bff63ff809cc49"},{"fixed":"60aaccf16d1e099c16bebfb96428ae762cb528f7"},{"fixed":"b8ed41cc04fb74005aa51d17865ca3d022760335"},{"fixed":"31a288a4df7f6a28e65da22a4ab2add4a963738e"},{"fixed":"64e28ecf44e46de9f01915a4146706a21c3469d2"},{"fixed":"994e3e18908f5c4a12d07b44018e6aa85f071048"},{"fixed":"df5703348813235874d851934e957c3723d71644"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-54214.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.5.0"},{"fixed":"4.14.308"}]},{"type":"ECOSYSTEM","events":[{"introduced":"4.15.0"},{"fixed":"4.19.276"}]},{"type":"ECOSYSTEM","events":[{"introduced":"4.20.0"},{"fixed":"5.4.235"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.5.0"},{"fixed":"5.10.173"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.99"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.16"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.2.3"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-54214.json"}}],"schema_version":"1.7.5"}