{"id":"CVE-2026-89899","summary":"media: cec: disable delayed work before freeing an interrupted transmit","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: cec: disable delayed work before freeing an interrupted transmit\n\ncec_transmit_msg_fh() drops adap-\u003elock to wait for a blocking transmit in\nwait_for_completion_killable(). If that wait is interrupted by a signal,\ncancel_delayed_work_sync() can run before the CEC kthread arms the reply\ntimeout via schedule_delayed_work(&data-\u003ework) in cec_transmit_done_ts().\nThe work is then armed after the cancel, and the data is freed with its\ndelayed_work still pending:\n\n  ODEBUG: free active (active state 0) object: ... hint: cec_wait_timeout\n\nUse disable_delayed_work_sync(): it cancels the work and disables it, so\nthe later schedule_delayed_work() becomes a no-op and the work cannot be\nre-armed. The data is freed right after, so it need not be re-enabled.","modified":"2026-10-28T02:30:22.611208903Z","published":"2026-09-16T10:31:59.589Z","related":["SUSE-SU-2026:24181-1","SUSE-SU-2026:24182-1","SUSE-SU-2026:24315-1","SUSE-SU-2026:24316-1","SUSE-SU-2026:4640-1","SUSE-SU-2026:4660-1","SUSE-SU-2026:4706-1","openSUSE-SU-2026:11880-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89899.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0fbd5c2327020858c45b2d1c65775d64cdeca523"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9a951931d4b4084acd64fa55fc3672a9da45ddf9"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9c6ceb0949227c1f0cf0e19393daec72d9889871"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a3adb63b121937b97f7fdc51e96564c7c799538b"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89899.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89899"},{"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":"490d84f6d73c12f4204241cff8651eed60aae914"},{"fixed":"9a951931d4b4084acd64fa55fc3672a9da45ddf9"},{"fixed":"a3adb63b121937b97f7fdc51e96564c7c799538b"},{"fixed":"9c6ceb0949227c1f0cf0e19393daec72d9889871"},{"fixed":"0fbd5c2327020858c45b2d1c65775d64cdeca523"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"4.18.19"},{"fixed":"4.19"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"4.19.2"},{"fixed":"4.20"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"e448dfd6d3ec944411f6575bc24e4f8baa1e297f"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"2781b86d7e45de09befa5ace296b66787146561f"}]}],"versions":["v4.18.20","v4.18.19","v4.19.325","v4.19.324","v4.19.323","v4.19.322","v4.19.321","v4.19.320","v4.19.319","v4.19.318","v4.19.317","v4.19.316","v4.19.315","v4.19.314","v4.19.313","v4.19.312","v4.19.311","v4.19.310","v4.19.309","v4.19.308","v4.19.307","v4.19.306","v4.19.305","v4.19.304","v4.19.303","v4.19.302","v4.19.301","v4.19.300","v4.19.299","v4.19.298","v4.19.297","v4.19.296","v4.19.295","v4.19.294","v4.19.293","v4.19.292","v4.19.291","v4.19.290","v4.19.289","v4.19.288","v4.19.287","v4.19.286","v4.19.285","v4.19.284","v4.19.283","v4.19.282","v4.19.281","v4.19.280","v4.19.279","v4.19.278","v4.19.277","v4.19.276","v4.19.275","v4.19.274","v4.19.273","v4.19.272","v4.19.271","v4.19.270","v4.19.269","v4.19.268","v4.19.267","v4.19.266","v4.19.265","v4.19.264","v4.19.263","v4.19.262","v4.19.261","v4.19.260","v4.19.259","v4.19.258","v4.19.257","v4.19.256","v4.19.255","v4.19.254","v4.19.253","v4.19.252","v4.19.251","v4.19.250","v4.19.249","v4.19.248","v4.19.247","v4.19.246","v4.19.245","v4.19.244","v4.19.243","v4.19.242","v4.19.241","v4.19.240","v4.19.239","v4.19.238","v4.19.237","v4.19.236","v4.19.235","v4.19.234","v4.19.233","v4.19.232","v4.19.231","v4.19.230","v4.19.229","v4.19.228","v4.19.227","v4.19.226","v4.19.225","v4.19.224","v4.19.223","v4.19.222","v4.19.221","v4.19.220","v4.19.219","v4.19.218","v4.19.217","v4.19.216","v4.19.215","v4.19.214","v4.19.213","v4.19.212","v4.19.211","v4.19.210","v4.19.209","v4.19.208","v4.19.207","v4.19.206","v4.19.205","v4.19.204","v4.19.203","v4.19.202","v4.19.201","v4.19.200","v4.19.199","v4.19.198","v4.19.197","v4.19.196","v4.19.195","v4.19.194","v4.19.193","v4.19.192","v4.19.191","v4.19.190","v4.19.189","v4.19.188","v4.19.187","v4.19.186","v4.19.185","v4.19.184","v4.19.183","v4.19.182","v4.19.181","v4.19.180","v4.19.179","v4.19.178","v4.19.177","v4.19.176","v4.19.175","v4.19.174","v4.19.173","v4.19.172","v4.19.171","v4.19.170","v4.19.169","v4.19.168","v4.19.167","v4.19.166","v4.19.165","v4.19.164","v4.19.163","v4.19.162","v4.19.161","v4.19.160","v4.19.159","v4.19.158","v4.19.157","v4.19.156","v4.19.155","v4.19.154","v4.19.153","v4.19.152","v4.19.151","v4.19.150","v4.19.149","v4.19.148","v4.19.147","v4.19.146","v4.19.145","v4.19.144","v4.19.143","v4.19.142","v4.19.141","v4.19.140","v4.19.139","v4.19.138","v4.19.137","v4.19.136","v4.19.135","v4.19.134","v4.19.133","v4.19.132","v4.19.131","v4.19.130","v4.19.129","v4.19.128","v4.19.127","v4.19.126","v4.19.125","v4.19.124","v4.19.123","v4.19.122","v4.19.121","v4.19.120","v4.19.119","v4.19.118","v4.19.117","v4.19.116","v4.19.115","v4.19.114","v4.19.113","v4.19.112","v4.19.111","v4.19.110","v4.19.109","v4.19.108","v4.19.107","v4.19.106","v4.19.105","v4.19.104","v4.19.103","v4.19.102","v4.19.101","v4.19.100","v4.19.99","v4.19.98","v4.19.97","v4.19.96","v4.19.95","v4.19.94","v4.19.93","v4.19.92","v4.19.91","v4.19.90","v4.19.89","v4.19.88","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