{"id":"CVE-2022-50886","state":"PUBLISHED","title":"mmc: toshsd: fix return value check of mmc_add_host()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: toshsd: 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, free_irq() also needs be called.","publishedAt":"2025-12-30T12:34:12.782Z","updatedAt":"2026-05-11T19:27:02.120Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"a5eb8bbd66ccf9f169419f9652544aec771b7c57","status":"affected","lessThan":"34ae492f8d172f0bd193c24cad588b35419ea47a","versionType":"git"},{"version":"a5eb8bbd66ccf9f169419f9652544aec771b7c57","status":"affected","lessThan":"3329e7b7132ca727263fb0ee214cf52cc6dcaaad","versionType":"git"},{"version":"a5eb8bbd66ccf9f169419f9652544aec771b7c57","status":"affected","lessThan":"4f6cb1c685f9e20a4a9fa565e442f5af4dad70ff","versionType":"git"},{"version":"a5eb8bbd66ccf9f169419f9652544aec771b7c57","status":"affected","lessThan":"3dbb69a0242c31ea4c9eee22b1c41b515fe509a0","versionType":"git"},{"version":"a5eb8bbd66ccf9f169419f9652544aec771b7c57","status":"affected","lessThan":"aabbedcb6c9a72d12d35dc672e83f0c8064d8a61","versionType":"git"},{"version":"a5eb8bbd66ccf9f169419f9652544aec771b7c57","status":"affected","lessThan":"6444079767b68b1fbed0e7668081146e80dcb719","versionType":"git"},{"version":"a5eb8bbd66ccf9f169419f9652544aec771b7c57","status":"affected","lessThan":"647e370dd0ef7e212d8d014bda748e461eab2e8c","versionType":"git"},{"version":"a5eb8bbd66ccf9f169419f9652544aec771b7c57","status":"affected","lessThan":"bfd77b194c94aefbde4efc30ddf8607dd9244672","versionType":"git"},{"version":"a5eb8bbd66ccf9f169419f9652544aec771b7c57","status":"affected","lessThan":"f670744a316ea983113a65313dcd387b5a992444","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/mmc/host/toshsd.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.19","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/toshsd.c"]}],"references":["https://git.kernel.org/stable/c/34ae492f8d172f0bd193c24cad588b35419ea47a","https://git.kernel.org/stable/c/3329e7b7132ca727263fb0ee214cf52cc6dcaaad","https://git.kernel.org/stable/c/4f6cb1c685f9e20a4a9fa565e442f5af4dad70ff","https://git.kernel.org/stable/c/3dbb69a0242c31ea4c9eee22b1c41b515fe509a0","https://git.kernel.org/stable/c/aabbedcb6c9a72d12d35dc672e83f0c8064d8a61","https://git.kernel.org/stable/c/6444079767b68b1fbed0e7668081146e80dcb719","https://git.kernel.org/stable/c/647e370dd0ef7e212d8d014bda748e461eab2e8c","https://git.kernel.org/stable/c/bfd77b194c94aefbde4efc30ddf8607dd9244672","https://git.kernel.org/stable/c/f670744a316ea983113a65313dcd387b5a992444"],"weaknesses":[],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/50xxx/CVE-2022-50886.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-50886","state":"PUBLISHED","datePublished":"2025-12-30T12:34:12.782Z","dateUpdated":"2026-05-11T19:27:02.120Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-12-30T12:26:05.425Z"},"containers":{"cna":{"title":"mmc: toshsd: fix return value check of mmc_add_host()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: toshsd: 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, free_irq() also needs be called."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"a5eb8bbd66ccf9f169419f9652544aec771b7c57","status":"affected","lessThan":"34ae492f8d172f0bd193c24cad588b35419ea47a","versionType":"git"},{"version":"a5eb8bbd66ccf9f169419f9652544aec771b7c57","status":"affected","lessThan":"3329e7b7132ca727263fb0ee214cf52cc6dcaaad","versionType":"git"},{"version":"a5eb8bbd66ccf9f169419f9652544aec771b7c57","status":"affected","lessThan":"4f6cb1c685f9e20a4a9fa565e442f5af4dad70ff","versionType":"git"},{"version":"a5eb8bbd66ccf9f169419f9652544aec771b7c57","status":"affected","lessThan":"3dbb69a0242c31ea4c9eee22b1c41b515fe509a0","versionType":"git"},{"version":"a5eb8bbd66ccf9f169419f9652544aec771b7c57","status":"affected","lessThan":"aabbedcb6c9a72d12d35dc672e83f0c8064d8a61","versionType":"git"},{"version":"a5eb8bbd66ccf9f169419f9652544aec771b7c57","status":"affected","lessThan":"6444079767b68b1fbed0e7668081146e80dcb719","versionType":"git"},{"version":"a5eb8bbd66ccf9f169419f9652544aec771b7c57","status":"affected","lessThan":"647e370dd0ef7e212d8d014bda748e461eab2e8c","versionType":"git"},{"version":"a5eb8bbd66ccf9f169419f9652544aec771b7c57","status":"affected","lessThan":"bfd77b194c94aefbde4efc30ddf8607dd9244672","versionType":"git"},{"version":"a5eb8bbd66ccf9f169419f9652544aec771b7c57","status":"affected","lessThan":"f670744a316ea983113a65313dcd387b5a992444","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/mmc/host/toshsd.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.19","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/toshsd.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/34ae492f8d172f0bd193c24cad588b35419ea47a"},{"url":"https://git.kernel.org/stable/c/3329e7b7132ca727263fb0ee214cf52cc6dcaaad"},{"url":"https://git.kernel.org/stable/c/4f6cb1c685f9e20a4a9fa565e442f5af4dad70ff"},{"url":"https://git.kernel.org/stable/c/3dbb69a0242c31ea4c9eee22b1c41b515fe509a0"},{"url":"https://git.kernel.org/stable/c/aabbedcb6c9a72d12d35dc672e83f0c8064d8a61"},{"url":"https://git.kernel.org/stable/c/6444079767b68b1fbed0e7668081146e80dcb719"},{"url":"https://git.kernel.org/stable/c/647e370dd0ef7e212d8d014bda748e461eab2e8c"},{"url":"https://git.kernel.org/stable/c/bfd77b194c94aefbde4efc30ddf8607dd9244672"},{"url":"https://git.kernel.org/stable/c/f670744a316ea983113a65313dcd387b5a992444"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:27:02.120Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.19","versionEndExcluding":"4.9.337"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.19","versionEndExcluding":"4.14.303"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.19","versionEndExcluding":"4.19.270"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.19","versionEndExcluding":"5.4.229"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.19","versionEndExcluding":"5.10.163"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.19","versionEndExcluding":"5.15.86"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.19","versionEndExcluding":"6.0.16"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.19","versionEndExcluding":"6.1.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.19","versionEndExcluding":"6.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}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