{"id":"CVE-2023-53827","summary":"Bluetooth: L2CAP: Fix use-after-free in l2cap_disconnect_{req,rsp}","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: Fix use-after-free in l2cap_disconnect_{req,rsp}\n\nSimilar to commit d0be8347c623 (\"Bluetooth: L2CAP: Fix use-after-free\ncaused by l2cap_chan_put\"), just use l2cap_chan_hold_unless_zero to\nprevent referencing a channel that is about to be destroyed.","modified":"2026-04-02T09:45:20.417028Z","published":"2025-12-09T01:29:40.794Z","related":["SUSE-SU-2026:0263-1","SUSE-SU-2026:0317-1","SUSE-SU-2026:0411-1","SUSE-SU-2026:0617-1","SUSE-SU-2026:0928-1","SUSE-SU-2026:0961-1","SUSE-SU-2026:1078-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53827.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1351551aa9058e07a20a27a158270cf84fcde621"},{"type":"WEB","url":"https://git.kernel.org/stable/c/348d446762e7c70778df8bafbdf3fa0df2123f58"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a2a9339e1c9deb7e1e079e12e27a0265aea8421a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ac6725a634f7e8c0330610a8527f20c730b61115"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c02421992505c95c7f3c9ad59ee35e22eac60988"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d82a439c3cfdb28aa7e82e2e849c5c4dd9fca284"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d9ba36c22a7bb09d6bac4cc2f243eff05da53f43"},{"type":"WEB","url":"https://git.kernel.org/stable/c/f2d38e77aa5f3effc143e7dd24da8acf02925958"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53827.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-53827"},{"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":"61d6ef3e3408cdf7e622646fb90a9f7f9560b943"},{"fixed":"f2d38e77aa5f3effc143e7dd24da8acf02925958"},{"fixed":"1351551aa9058e07a20a27a158270cf84fcde621"},{"fixed":"c02421992505c95c7f3c9ad59ee35e22eac60988"},{"fixed":"d9ba36c22a7bb09d6bac4cc2f243eff05da53f43"},{"fixed":"ac6725a634f7e8c0330610a8527f20c730b61115"},{"fixed":"348d446762e7c70778df8bafbdf3fa0df2123f58"},{"fixed":"d82a439c3cfdb28aa7e82e2e849c5c4dd9fca284"},{"fixed":"a2a9339e1c9deb7e1e079e12e27a0265aea8421a"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53827.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.5.0"},{"fixed":"4.14.313"}]},{"type":"ECOSYSTEM","events":[{"introduced":"4.15.0"},{"fixed":"4.19.281"}]},{"type":"ECOSYSTEM","events":[{"introduced":"4.20.0"},{"fixed":"5.4.241"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.5.0"},{"fixed":"5.10.178"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.108"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.25"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.2.12"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53827.json"}}],"schema_version":"1.7.5"}