{"id":"CVE-2024-50059","summary":"ntb: ntb_hw_switchtec: Fix use after free vulnerability in switchtec_ntb_remove due to race condition","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nntb: ntb_hw_switchtec: Fix use after free vulnerability in switchtec_ntb_remove due to race condition\n\nIn the switchtec_ntb_add function, it can call switchtec_ntb_init_sndev\nfunction, then &sndev-\u003echeck_link_status_work is bound with\ncheck_link_status_work. switchtec_ntb_link_notification may be called\nto start the work.\n\nIf we remove the module which will call switchtec_ntb_remove to make\ncleanup, it will free sndev through kfree(sndev), while the work\nmentioned above will be used. The sequence of operations that may lead\nto a UAF bug is as follows:\n\nCPU0                                 CPU1\n\n                        | check_link_status_work\nswitchtec_ntb_remove    |\nkfree(sndev);           |\n                        | if (sndev-\u003elink_force_down)\n                        | // use sndev\n\nFix it by ensuring that the work is canceled before proceeding with\nthe cleanup in switchtec_ntb_remove.","modified":"2026-05-18T05:59:01.539611154Z","published":"2024-10-21T19:39:49.079Z","related":["SUSE-SU-2024:3983-1","SUSE-SU-2024:3984-1","SUSE-SU-2024:3985-1","SUSE-SU-2024:3986-1","SUSE-SU-2024:4318-1","SUSE-SU-2024:4364-1","SUSE-SU-2024:4387-1","SUSE-SU-2025:20163-1","SUSE-SU-2025:20164-1","SUSE-SU-2025:20246-1","SUSE-SU-2025:20247-1","USN-7276-1","USN-7277-1","openSUSE-SU-2024:14500-1","openSUSE-SU-2025:14705-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/50xxx/CVE-2024-50059.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/177925d9c8715a897bb79eca62628862213ba956"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3ae45be8492460a35b5aebf6acac1f1d32708946"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5126d8f5567f49b52e21fca320eaa97977055099"},{"type":"WEB","url":"https://git.kernel.org/stable/c/92728fceefdaa2a0a3aae675f86193b006eeaa43"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b650189687822b705711f0567a65a164a314d8df"},{"type":"WEB","url":"https://git.kernel.org/stable/c/e51aded92d42784313ba16c12f4f88cc4f973bbb"},{"type":"WEB","url":"https://git.kernel.org/stable/c/fa840ba4bd9f3bad7f104e5b32028ee73af8b3dd"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/50xxx/CVE-2024-50059.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-50059"},{"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":"d04be142b8b61ffb3c9cc5c6d1abda8fc59a16c9"},{"fixed":"5126d8f5567f49b52e21fca320eaa97977055099"},{"fixed":"b650189687822b705711f0567a65a164a314d8df"},{"fixed":"92728fceefdaa2a0a3aae675f86193b006eeaa43"},{"fixed":"3ae45be8492460a35b5aebf6acac1f1d32708946"},{"fixed":"fa840ba4bd9f3bad7f104e5b32028ee73af8b3dd"},{"fixed":"177925d9c8715a897bb79eca62628862213ba956"},{"fixed":"e51aded92d42784313ba16c12f4f88cc4f973bbb"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-50059.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.16.0"},{"fixed":"5.4.285"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.5.0"},{"fixed":"5.10.227"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.168"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"6.1.113"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.57"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.11.4"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-50059.json"}}],"schema_version":"1.7.5"}