{"id":"CVE-2022-50499","summary":"media: dvb-core: Fix double free in dvb_register_device()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: dvb-core: Fix double free in dvb_register_device()\n\nIn function dvb_register_device() -\u003e dvb_register_media_device() -\u003e\ndvb_create_media_entity(), dvb-\u003eentity is allocated and initialized. If\nthe initialization fails, it frees the dvb-\u003eentity, and return an error\ncode. The caller takes the error code and handles the error by calling\ndvb_media_device_free(), which unregisters the entity and frees the\nfield again if it is not NULL. As dvb-\u003eentity may not NULLed in\ndvb_create_media_entity() when the allocation of dvbdev-\u003epad fails, a\ndouble free may occur. This may also cause an Use After free in\nmedia_device_unregister_entity().\n\nFix this by storing NULL to dvb-\u003eentity when it is freed.","modified":"2026-04-02T08:28:33.650255Z","published":"2025-10-04T15:43:50.064Z","related":["SUSE-SU-2025:4111-1","SUSE-SU-2025:4139-1","SUSE-SU-2025:4149-1","SUSE-SU-2025:4320-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50499.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0588b12c418c3e4f927ced11f27b02ef4a5bfb07"},{"type":"WEB","url":"https://git.kernel.org/stable/c/123eddf92a114e03919942641d2c2b1f4ca56ea6"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6b0d0477fce747d4137aa65856318b55fba72198"},{"type":"WEB","url":"https://git.kernel.org/stable/c/70bc51303871159796b55ba1a8f16637b46c2511"},{"type":"WEB","url":"https://git.kernel.org/stable/c/772892b29ac50c2c5e918fc80104aa6ede81d837"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7dd5a68cdbbbe7fc67ba701cb52ba10d8ba149f8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/acf984a3718c2458eb9e08b6714490a04f213c58"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b21f62b49ee9c3e0216d685d9cfd6003e5727271"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e9a78485b658361fab6a5547377be6c1af6f1b3d"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50499.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-50499"},{"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":"9db28659aa893c68f162b11fd63bb7f6a713e52f"},{"fixed":"0588b12c418c3e4f927ced11f27b02ef4a5bfb07"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"1399a136127bfe1b9bb7c951d9851da62a519121"},{"fixed":"e9a78485b658361fab6a5547377be6c1af6f1b3d"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"4df2427a5148093987437054bb82da4d014dcd59"},{"fixed":"70bc51303871159796b55ba1a8f16637b46c2511"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"fcd5ce4b3936242e6679875a4d3c3acfc8743e15"},{"fixed":"b21f62b49ee9c3e0216d685d9cfd6003e5727271"},{"fixed":"7dd5a68cdbbbe7fc67ba701cb52ba10d8ba149f8"},{"fixed":"acf984a3718c2458eb9e08b6714490a04f213c58"},{"fixed":"772892b29ac50c2c5e918fc80104aa6ede81d837"},{"fixed":"123eddf92a114e03919942641d2c2b1f4ca56ea6"},{"fixed":"6b0d0477fce747d4137aa65856318b55fba72198"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"0"},{"last_affected":"8c17f6f5d0d6aab72a2af25c9911ac66e984be06"},{"last_affected":"202be5d6e46f682b9d1d79cd4dc6ab726e62ef1c"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-50499.json"}}],"schema_version":"1.7.5"}