{"id":"CVE-2022-50251","state":"PUBLISHED","title":"mmc: vub300: fix return value check of mmc_add_host()","description":"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.","publishedAt":"2025-09-15T14:02:12.331Z","updatedAt":"2026-05-11T19:15:41.971Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"88095e7b473a3d9ec3b9c60429576e9cbd327c89","status":"affected","lessThan":"41ed46bdbd2878cd6567abe0974a445f8b1b8ec8","versionType":"git"},{"version":"88095e7b473a3d9ec3b9c60429576e9cbd327c89","status":"affected","lessThan":"25f05d762ca5e1c685002a53dd44f68e78ca3feb","versionType":"git"},{"version":"88095e7b473a3d9ec3b9c60429576e9cbd327c89","status":"affected","lessThan":"a46e681151bbdacdf6b89ee8c4e5bad0555142bb","versionType":"git"},{"version":"88095e7b473a3d9ec3b9c60429576e9cbd327c89","status":"affected","lessThan":"3b29f8769d32016b2d89183db4d80c7a71b7e35e","versionType":"git"},{"version":"88095e7b473a3d9ec3b9c60429576e9cbd327c89","status":"affected","lessThan":"3049a3b927a40d89d4582ff1033cd7953be773c7","versionType":"git"},{"version":"88095e7b473a3d9ec3b9c60429576e9cbd327c89","status":"affected","lessThan":"afc898019e7bf18c5eb7a0ac19852fcb1b341b3c","versionType":"git"},{"version":"88095e7b473a3d9ec3b9c60429576e9cbd327c89","status":"affected","lessThan":"c9e85979b59cb86f0a15defa8199d740e2b36b90","versionType":"git"},{"version":"88095e7b473a3d9ec3b9c60429576e9cbd327c89","status":"affected","lessThan":"2044b2ea77945f372ef161d1bbf814e471767ff2","versionType":"git"},{"version":"88095e7b473a3d9ec3b9c60429576e9cbd327c89","status":"affected","lessThan":"0613ad2401f88bdeae5594c30afe318e93b14676","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/mmc/host/vub300.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.0","versionType":"semver"},{"version":"4.9.337","status":"unaffected","lessThanOrEqual":"4.9.*","versionType":"semver"},{"version":"4.14.303","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.270","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.229","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.163","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.86","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.0.16","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1.2","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/mmc/host/vub300.c"]}],"references":["https://git.kernel.org/stable/c/41ed46bdbd2878cd6567abe0974a445f8b1b8ec8","https://git.kernel.org/stable/c/25f05d762ca5e1c685002a53dd44f68e78ca3feb","https://git.kernel.org/stable/c/a46e681151bbdacdf6b89ee8c4e5bad0555142bb","https://git.kernel.org/stable/c/3b29f8769d32016b2d89183db4d80c7a71b7e35e","https://git.kernel.org/stable/c/3049a3b927a40d89d4582ff1033cd7953be773c7","https://git.kernel.org/stable/c/afc898019e7bf18c5eb7a0ac19852fcb1b341b3c","https://git.kernel.org/stable/c/c9e85979b59cb86f0a15defa8199d740e2b36b90","https://git.kernel.org/stable/c/2044b2ea77945f372ef161d1bbf814e471767ff2","https://git.kernel.org/stable/c/0613ad2401f88bdeae5594c30afe318e93b14676"],"weaknesses":[],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/50xxx/CVE-2022-50251.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-50251","state":"PUBLISHED","datePublished":"2025-09-15T14:02:12.331Z","dateUpdated":"2026-05-11T19:15:41.971Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-09-15T13:58:00.973Z"},"containers":{"cna":{"title":"mmc: vub300: fix return value check of mmc_add_host()","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"88095e7b473a3d9ec3b9c60429576e9cbd327c89","status":"affected","lessThan":"41ed46bdbd2878cd6567abe0974a445f8b1b8ec8","versionType":"git"},{"version":"88095e7b473a3d9ec3b9c60429576e9cbd327c89","status":"affected","lessThan":"25f05d762ca5e1c685002a53dd44f68e78ca3feb","versionType":"git"},{"version":"88095e7b473a3d9ec3b9c60429576e9cbd327c89","status":"affected","lessThan":"a46e681151bbdacdf6b89ee8c4e5bad0555142bb","versionType":"git"},{"version":"88095e7b473a3d9ec3b9c60429576e9cbd327c89","status":"affected","lessThan":"3b29f8769d32016b2d89183db4d80c7a71b7e35e","versionType":"git"},{"version":"88095e7b473a3d9ec3b9c60429576e9cbd327c89","status":"affected","lessThan":"3049a3b927a40d89d4582ff1033cd7953be773c7","versionType":"git"},{"version":"88095e7b473a3d9ec3b9c60429576e9cbd327c89","status":"affected","lessThan":"afc898019e7bf18c5eb7a0ac19852fcb1b341b3c","versionType":"git"},{"version":"88095e7b473a3d9ec3b9c60429576e9cbd327c89","status":"affected","lessThan":"c9e85979b59cb86f0a15defa8199d740e2b36b90","versionType":"git"},{"version":"88095e7b473a3d9ec3b9c60429576e9cbd327c89","status":"affected","lessThan":"2044b2ea77945f372ef161d1bbf814e471767ff2","versionType":"git"},{"version":"88095e7b473a3d9ec3b9c60429576e9cbd327c89","status":"affected","lessThan":"0613ad2401f88bdeae5594c30afe318e93b14676","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/mmc/host/vub300.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.0","versionType":"semver"},{"version":"4.9.337","status":"unaffected","lessThanOrEqual":"4.9.*","versionType":"semver"},{"version":"4.14.303","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.270","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.229","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.163","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.86","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.0.16","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1.2","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/mmc/host/vub300.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/41ed46bdbd2878cd6567abe0974a445f8b1b8ec8"},{"url":"https://git.kernel.org/stable/c/25f05d762ca5e1c685002a53dd44f68e78ca3feb"},{"url":"https://git.kernel.org/stable/c/a46e681151bbdacdf6b89ee8c4e5bad0555142bb"},{"url":"https://git.kernel.org/stable/c/3b29f8769d32016b2d89183db4d80c7a71b7e35e"},{"url":"https://git.kernel.org/stable/c/3049a3b927a40d89d4582ff1033cd7953be773c7"},{"url":"https://git.kernel.org/stable/c/afc898019e7bf18c5eb7a0ac19852fcb1b341b3c"},{"url":"https://git.kernel.org/stable/c/c9e85979b59cb86f0a15defa8199d740e2b36b90"},{"url":"https://git.kernel.org/stable/c/2044b2ea77945f372ef161d1bbf814e471767ff2"},{"url":"https://git.kernel.org/stable/c/0613ad2401f88bdeae5594c30afe318e93b14676"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:15:41.971Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.0","versionEndExcluding":"4.9.337"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.0","versionEndExcluding":"4.14.303"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.0","versionEndExcluding":"4.19.270"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.0","versionEndExcluding":"5.4.229"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.0","versionEndExcluding":"5.10.163"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.0","versionEndExcluding":"5.15.86"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.0","versionEndExcluding":"6.0.16"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.0","versionEndExcluding":"6.1.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.0","versionEndExcluding":"6.2"}]}]}],"x_generator":{"engine":"bippy-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