{"id":"CVE-2023-53297","summary":"Bluetooth: L2CAP: fix \"bad unlock balance\" in l2cap_disconnect_rsp","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: fix \"bad unlock balance\" in l2cap_disconnect_rsp\n\nconn-\u003echan_lock isn't acquired before l2cap_get_chan_by_scid,\nif l2cap_get_chan_by_scid returns NULL, then 'bad unlock balance'\nis triggered.","modified":"2026-05-18T05:55:58.962758550Z","published":"2025-09-16T08:11:29.283Z","related":["ALSA-2025:19102","ALSA-2025:19103","SUSE-SU-2025:03615-1","SUSE-SU-2025:03628-1","SUSE-SU-2025:3716-1","SUSE-SU-2025:3761-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53297.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/116b9c002c894097adc2b8684db2d1da4229ed46"},{"type":"WEB","url":"https://git.kernel.org/stable/c/2112c4c47d36bc5aba3ddeb9afedce6ae6a67e7d"},{"type":"WEB","url":"https://git.kernel.org/stable/c/25e97f7b1866e6b8503be349eeea44bb52d661ce"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5134556c9be582793f30695c09d18a26fe1ff2d7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/55410a9144c76ecda126e6cdec556dfcd8f343b2"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5f352a56f0e607e6ff539cbf12156bfd8af232be"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6a27762340ad08643de3bc17fe1646ea489ca2e2"},{"type":"WEB","url":"https://git.kernel.org/stable/c/fd269a0435f8e9943b7a57c5a59688848d42d449"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53297.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-53297"},{"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":"f2d38e77aa5f3effc143e7dd24da8acf02925958"},{"fixed":"5f352a56f0e607e6ff539cbf12156bfd8af232be"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"1351551aa9058e07a20a27a158270cf84fcde621"},{"fixed":"6a27762340ad08643de3bc17fe1646ea489ca2e2"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"c02421992505c95c7f3c9ad59ee35e22eac60988"},{"fixed":"2112c4c47d36bc5aba3ddeb9afedce6ae6a67e7d"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"d9ba36c22a7bb09d6bac4cc2f243eff05da53f43"},{"fixed":"55410a9144c76ecda126e6cdec556dfcd8f343b2"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"ac6725a634f7e8c0330610a8527f20c730b61115"},{"fixed":"116b9c002c894097adc2b8684db2d1da4229ed46"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"348d446762e7c70778df8bafbdf3fa0df2123f58"},{"fixed":"fd269a0435f8e9943b7a57c5a59688848d42d449"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"a2a9339e1c9deb7e1e079e12e27a0265aea8421a"},{"fixed":"5134556c9be582793f30695c09d18a26fe1ff2d7"},{"fixed":"25e97f7b1866e6b8503be349eeea44bb52d661ce"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"0"},{"last_affected":"d82a439c3cfdb28aa7e82e2e849c5c4dd9fca284"}]}],"versions":["v4.14.315","v4.14.314","v4.14.313","v4.19.283","v4.19.282","v4.19.281","v5.4.243","v5.4.242","v5.4.241","v5.10.180","v5.10.179","v5.10.178","v5.15.112","v5.15.111","v5.15.110","v5.15.109","v5.15.108","v6.1.29","v6.1.28","v6.1.27","v6.1.26","v6.1.25","v6.2.11","v6.2-rc6","v6.2.10","v6.2.9","v6.2.8","v6.2.7","v6.2.6","v6.2.5","v6.2.4","v6.2.3","v6.2.2","v6.2-rc1","v6.2","v6.2.1","v6.2-rc2","v6.2-rc8","v6.2-rc5","v6.2-rc4","v6.2-rc7","v6.2-rc3","v6.1-rc1","v6.1","v6.1-rc8","v6.1-rc3","v6.1-rc6","v6.1-rc7","v6.1-rc4","v6.1-rc2","v6.1-rc5","v6.0-rc1","v6.0","v6.0-rc7","v6.0-rc3","v6.0-rc2","v6.0-rc6","v6.0-rc4","v6.0-rc5","v5.19","v5.19-rc1","v5.19-rc5","v5.19-rc8","v5.19-rc6","v5.18","v5.19-rc2","v5.19-rc7","v5.19-rc3","v5.19-rc4","v5.18-rc1","v5.18-rc7","v5.18-rc2","v5.18-rc5","v5.17","v5.18-rc4","v5.18-rc3","v5.18-rc6","v5.17-rc6","v5.17-rc4","v5.17-rc8","v5.17-rc7","v5.17-rc1","v5.17-rc3","v5.17-rc2","v5.17-rc5","v5.16","v5.16-rc1","v5.16-rc8","v5.16-rc5","v5.16-rc6","v5.16-rc7","v5.16-rc3","v5.16-rc2","v5.16-rc4","v5.15","v5.15-rc2","v5.15-rc1","v5.15-rc4","v5.15-rc7","v5.15-rc3","v5.15-rc5","v5.15-rc6","v5.14","v5.14-rc3","v5.14-rc1","v5.14-rc2","v5.14-rc7","v5.14-rc6","v5.13-rc1","v5.14-rc5","v5.14-rc4","v5.13","v5.13-rc6","v5.13-rc7","v5.13-rc3","v5.13-rc2","v5.13-rc4","v5.13-rc5","v5.12","v5.12-rc2","v5.12-rc1-dontuse","v5.12-rc1","v5.12-rc8","v5.12-rc3","v5.12-rc7","v5.12-rc5","v5.12-rc6","v5.12-rc4","v5.10","v5.11","v5.11-rc3","v5.11-rc7","v5.11-rc6","v5.11-rc5","v5.11-rc1","v5.11-rc4","v5.11-rc2","v5.10-rc1","v5.10-rc7","v5.10-rc4","v5.10-rc3","v5.10-rc6","v5.9","v5.10-rc2","v5.10-rc5","v5.9-rc1","v5.9-rc7","v5.9-rc8","v5.9-rc6","v5.9-rc4","v5.9-rc5","v5.9-rc3","v5.9-rc2","v5.8","v5.7","v5.8-rc2","v5.8-rc1","v5.8-rc7","v5.8-rc5","v5.8-rc3","v5.8-rc4","v5.8-rc6","v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