{"id":"CVE-2026-89522","revision":"338f3a2016a14298b7dae4951e4a9f4b","records":[{"revision":"338f3a2016a14298b7dae4951e4a9f4b","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-89522","aliases":[],"title":"media: staging/ipu7: fix async notifier UAF on probe error path","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: staging/ipu7: fix async notifier UAF on probe error path\n\nisys_register_devices() registers the V4L2 async notifier via\nisys_notifier_init(). If a subsequent probe step such as\nisys_fw_log_init() fails, isys_probe() jumps to the out_cleanup label\nwhich only calls isys_unregister_devices(). That helper tears down the\nvideo devices, subdevices, V4L2 device and media device, but never\nunregisters or cleans up the async notifier.\n\nAs a result the notifier stays chained in the global notifier_list while\nthe enclosing struct ipu7_isys is freed by devres, leading to list\ncorruption and a use-after-free the next time the list is walked.\n\nThe remove path already does the right thing by calling\nisys_notifier_cleanup() before isys_unregister_devices(). Mirror that on\nthe probe error path so the notifier is unregistered and cleaned up\nbefore the device is torn down.","state":0,"publishedAt":"2026-09-11T19:44:04.052+00:00","modifiedAt":"2026-10-19T08:48:13.544+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/staging/media/ipu7/ipu7-isys.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"a516d36bdc3d8373f904af57c95e76d6f921cf1c\",\n                            \"lessThan\": \"2a8dd9fd12f3f6b21207cec8f50c92cd428e6b81\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"a516d36bdc3d8373f904af57c95e76d6f921cf1c\",\n                            \"lessThan\": \"323c411fb63122e8cef5b833032d69d59a838559\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"a516d36bdc3d8373f904af57c95e76d6f921cf1c\",\n                            \"lessThan\": \"d7f48aa7d60c65d3e6d5312c27f17d5525a245fb\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/staging/media/ipu7/ipu7-isys.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.17\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.17\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.50\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.4\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://git.kernel.org/stable/c/2a8dd9fd12f3f6b21207cec8f50c92cd428e6b81","https://git.kernel.org/stable/c/323c411fb63122e8cef5b833032d69d59a838559","https://git.kernel.org/stable/c/d7f48aa7d60c65d3e6d5312c27f17d5525a245fb"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-89522","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-89522","identifiers":["CVE-2026-89522"]},"retained":false,"historicalAffected":[]}],"coverage":[]}