{"schema_version":"1.9.0","id":"CVE-2026-63975","published":"2026-07-19T14:56:00.662Z","modified":"2026-08-31T18:26:05.579686267Z","related":["SUSE-SU-2026:23066-1","SUSE-SU-2026:23068-1","SUSE-SU-2026:23193-1","SUSE-SU-2026:23194-1","SUSE-SU-2026:23221-1","SUSE-SU-2026:23231-1","SUSE-SU-2026:23237-1","SUSE-SU-2026:23241-1","SUSE-SU-2026:23244-1","SUSE-SU-2026:3593-1","SUSE-SU-2026:3595-1","SUSE-SU-2026:3602-1","SUSE-SU-2026:3616-1","SUSE-SU-2026:3617-1","SUSE-SU-2026:3790-1","SUSE-SU-2026:3810-1","openSUSE-SU-2026:21555-1"],"summary":"Bluetooth: L2CAP: Fix possible crash on l2cap_ecred_conn_rsp","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: Fix possible crash on l2cap_ecred_conn_rsp\n\nIf dcid is received for an already-assigned destination CID the spec\nrequires that both channels to be discarded, but calling l2cap_chan_del\nmay invalidate the tmp cursor created by list_for_each_entry_safe and\nin fact it is the wrong procedure as the chan->dcid may be assigned\npreviously it really needs to be disconnected.\n\nCalling l2cap_chan_clone directly may still lead to l2cap_chan_del so\ninstead schedule l2cap_chan_timeout with delay 0 to close the channel\nasynchronously.","affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"15f02b91056253e8cdc592888f431da0731337b8"},{"fixed":"3c8eaa91eb433c450426539290be4ffe282e9f00"},{"fixed":"ecfed1e0d8efecad6737a0d83e21d2fd021d8c48"},{"fixed":"e6833e737a51db1e5ea0401322acf5e22abd8be6"},{"fixed":"6319b38fe69f56ed95680ade485b957a53fff642"},{"fixed":"291eec1041c918c460dc9702e44edd17794b4a4b"},{"fixed":"41e29548b5e8b5e5fcf708786b3bea67cab107fa"},{"fixed":"d153b8898c0051eb8b6a083b35cbe304a5886bd5"},{"fixed":"41c2713b204e6cb6a94587bc6bf6935107df5479"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63975.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.7.0"},{"fixed":"5.10.259"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.210"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.176"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.143"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.93"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.35"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.0.12"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-63975.json"}}],"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/291eec1041c918c460dc9702e44edd17794b4a4b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3c8eaa91eb433c450426539290be4ffe282e9f00"},{"type":"WEB","url":"https://git.kernel.org/stable/c/41c2713b204e6cb6a94587bc6bf6935107df5479"},{"type":"WEB","url":"https://git.kernel.org/stable/c/41e29548b5e8b5e5fcf708786b3bea67cab107fa"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6319b38fe69f56ed95680ade485b957a53fff642"},{"type":"WEB","url":"https://git.kernel.org/stable/c/d153b8898c0051eb8b6a083b35cbe304a5886bd5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e6833e737a51db1e5ea0401322acf5e22abd8be6"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ecfed1e0d8efecad6737a0d83e21d2fd021d8c48"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63975.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63975"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63975.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}