{"id":"CVE-2022-50251","summary":"mmc: vub300: fix return value check of mmc_add_host()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: vub300: fix return value check of mmc_add_host()\n\nmmc_add_host() may return error, if we ignore its return value, the memory\nthat allocated in mmc_alloc_host() will be leaked and it will lead a kernel\ncrash because of deleting not added device in the remove path.\n\nSo fix this by checking the return value and goto error path which will call\nmmc_free_host(), besides, the timer added before mmc_add_host() needs be del.\n\nAnd this patch fixes another missing call mmc_free_host() if usb_control_msg()\nfails.","modified":"2026-03-20T11:47:19.986511Z","published":"2025-09-15T14:02:12.331Z","related":["SUSE-SU-2025:03615-1","SUSE-SU-2025:03628-1","SUSE-SU-2025:3716-1","SUSE-SU-2025:3761-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50251.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0613ad2401f88bdeae5594c30afe318e93b14676"},{"type":"WEB","url":"https://git.kernel.org/stable/c/2044b2ea77945f372ef161d1bbf814e471767ff2"},{"type":"WEB","url":"https://git.kernel.org/stable/c/25f05d762ca5e1c685002a53dd44f68e78ca3feb"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3049a3b927a40d89d4582ff1033cd7953be773c7"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3b29f8769d32016b2d89183db4d80c7a71b7e35e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/41ed46bdbd2878cd6567abe0974a445f8b1b8ec8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a46e681151bbdacdf6b89ee8c4e5bad0555142bb"},{"type":"WEB","url":"https://git.kernel.org/stable/c/afc898019e7bf18c5eb7a0ac19852fcb1b341b3c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c9e85979b59cb86f0a15defa8199d740e2b36b90"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50251.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-50251"},{"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":"88095e7b473a3d9ec3b9c60429576e9cbd327c89"},{"fixed":"41ed46bdbd2878cd6567abe0974a445f8b1b8ec8"},{"fixed":"25f05d762ca5e1c685002a53dd44f68e78ca3feb"},{"fixed":"a46e681151bbdacdf6b89ee8c4e5bad0555142bb"},{"fixed":"3b29f8769d32016b2d89183db4d80c7a71b7e35e"},{"fixed":"3049a3b927a40d89d4582ff1033cd7953be773c7"},{"fixed":"afc898019e7bf18c5eb7a0ac19852fcb1b341b3c"},{"fixed":"c9e85979b59cb86f0a15defa8199d740e2b36b90"},{"fixed":"2044b2ea77945f372ef161d1bbf814e471767ff2"},{"fixed":"0613ad2401f88bdeae5594c30afe318e93b14676"}]}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-50251.json"}}],"schema_version":"1.7.5"}