{"schema_version":"1.9.0","id":"CVE-2026-43293","published":"2026-05-08T13:11:16.812Z","modified":"2026-08-27T18:26:18.785582179Z","related":["SUSE-SU-2026:23066-1","SUSE-SU-2026:23068-1","SUSE-SU-2026:23221-1","SUSE-SU-2026:23231-1","SUSE-SU-2026:23237-1","openSUSE-SU-2026:21555-1"],"summary":"media: chips-media: wave5: Fix kthread worker destruction in polling mode","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: chips-media: wave5: Fix kthread worker destruction in polling mode\n\nFix the cleanup order in polling mode (irq < 0) to prevent kernel warnings\nduring module removal. Cancel the hrtimer before destroying the kthread\nworker to ensure work queues are empty.\n\nIn polling mode, the driver uses hrtimer to periodically trigger\nwave5_vpu_timer_callback() which queues work via kthread_queue_work().\nThe kthread_destroy_worker() function validates that both work queues\nare empty with WARN_ON(!list_empty(&worker->work_list)) and\nWARN_ON(!list_empty(&worker->delayed_work_list)).\n\nThe original code called kthread_destroy_worker() before hrtimer_cancel(),\ncreating a race condition where the timer could fire during worker\ndestruction and queue new work, triggering the WARN_ON.\n\nThis causes the following warning on every module unload in polling mode:\n\n  ------------[ cut here ]------------\n  WARNING: CPU: 2 PID: 1034 at kernel/kthread.c:1430\n    kthread_destroy_worker+0x84/0x98\n  Modules linked in: wave5(-) rpmsg_ctrl rpmsg_char ...\n  Call trace:\n   kthread_destroy_worker+0x84/0x98\n   wave5_vpu_remove+0xc8/0xe0 [wave5]\n   platform_remove+0x30/0x58\n  ...\n  ---[ end trace 0000000000000000 ]---","affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"ed7276ed2fd02208bfca9f222ef1e7b2743d710d"},{"fixed":"156020e889edf4593870d926d3c4a6d06baac44a"},{"fixed":"cc8071b1bac6568ea09d54be2d4f74dba80e17f8"},{"fixed":"0c2e752688a0ee3b89993e6de6c496d863870c93"},{"fixed":"5a0c122e834b2f7f029526422c71be922960bf03"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43293.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.10.0"},{"fixed":"6.12.75"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.16"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"6.19.6"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43293.json"}}],"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0c2e752688a0ee3b89993e6de6c496d863870c93"},{"type":"WEB","url":"https://git.kernel.org/stable/c/156020e889edf4593870d926d3c4a6d06baac44a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5a0c122e834b2f7f029526422c71be922960bf03"},{"type":"WEB","url":"https://git.kernel.org/stable/c/cc8071b1bac6568ea09d54be2d4f74dba80e17f8"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43293.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43293"},{"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/2026/43xxx/CVE-2026-43293.json"}}