{"id":"CVE-2022-50640","state":"PUBLISHED","title":"mmc: core: Fix kernel panic when remove non-standard SDIO card","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: core: Fix kernel panic when remove non-standard SDIO card\n\nSDIO tuple is only allocated for standard SDIO card, especially it causes\nmemory corruption issues when the non-standard SDIO card has removed, which\nis because the card device's reference counter does not increase for it at\nsdio_init_func(), but all SDIO card device reference counter gets decreased\nat sdio_release_func().","publishedAt":"2025-12-09T00:00:13.871Z","updatedAt":"2026-05-11T19:22:45.426Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6f51be3d37dff73cf8db771df4169f4c2f1cbf66","status":"affected","lessThan":"b8b2965932e702b21e335ff30e1bb550f5a23b6f","versionType":"git"},{"version":"6f51be3d37dff73cf8db771df4169f4c2f1cbf66","status":"affected","lessThan":"b3275dde570b6420106a715bb58a0af041b94d95","versionType":"git"},{"version":"6f51be3d37dff73cf8db771df4169f4c2f1cbf66","status":"affected","lessThan":"1fb79478695d92bab1c120ad3dad05252b02a29d","versionType":"git"},{"version":"6f51be3d37dff73cf8db771df4169f4c2f1cbf66","status":"affected","lessThan":"7a09c64b7da0abdec3919812e3d93ecc44069ed0","versionType":"git"},{"version":"6f51be3d37dff73cf8db771df4169f4c2f1cbf66","status":"affected","lessThan":"8bf037279b5869ae9331c42bb1527d2680ebba96","versionType":"git"},{"version":"6f51be3d37dff73cf8db771df4169f4c2f1cbf66","status":"affected","lessThan":"1e8cd93ae536581562bab4e1d8c5315bbc2548bf","versionType":"git"},{"version":"6f51be3d37dff73cf8db771df4169f4c2f1cbf66","status":"affected","lessThan":"66d461a92f32b6995b630625d350259b6b1f961b","versionType":"git"},{"version":"6f51be3d37dff73cf8db771df4169f4c2f1cbf66","status":"affected","lessThan":"9972e6b404884adae9eec7463e30d9b3c9a70b18","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/mmc/core/sdio_bus.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.36","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.36","versionType":"semver"},{"version":"4.9.332","status":"unaffected","lessThanOrEqual":"4.9.*","versionType":"semver"},{"version":"4.14.298","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.264","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.223","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.153","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.77","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.0.7","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/mmc/core/sdio_bus.c"]}],"references":["https://git.kernel.org/stable/c/b8b2965932e702b21e335ff30e1bb550f5a23b6f","https://git.kernel.org/stable/c/b3275dde570b6420106a715bb58a0af041b94d95","https://git.kernel.org/stable/c/1fb79478695d92bab1c120ad3dad05252b02a29d","https://git.kernel.org/stable/c/7a09c64b7da0abdec3919812e3d93ecc44069ed0","https://git.kernel.org/stable/c/8bf037279b5869ae9331c42bb1527d2680ebba96","https://git.kernel.org/stable/c/1e8cd93ae536581562bab4e1d8c5315bbc2548bf","https://git.kernel.org/stable/c/66d461a92f32b6995b630625d350259b6b1f961b","https://git.kernel.org/stable/c/9972e6b404884adae9eec7463e30d9b3c9a70b18"],"weaknesses":[],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/50xxx/CVE-2022-50640.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-50640","state":"PUBLISHED","datePublished":"2025-12-09T00:00:13.871Z","dateUpdated":"2026-05-11T19:22:45.426Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-12-08T23:57:43.370Z"},"containers":{"cna":{"title":"mmc: core: Fix kernel panic when remove non-standard SDIO card","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: core: Fix kernel panic when remove non-standard SDIO card\n\nSDIO tuple is only allocated for standard SDIO card, especially it causes\nmemory corruption issues when the non-standard SDIO card has removed, which\nis because the card device's reference counter does not increase for it at\nsdio_init_func(), but all SDIO card device reference counter gets decreased\nat sdio_release_func()."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6f51be3d37dff73cf8db771df4169f4c2f1cbf66","status":"affected","lessThan":"b8b2965932e702b21e335ff30e1bb550f5a23b6f","versionType":"git"},{"version":"6f51be3d37dff73cf8db771df4169f4c2f1cbf66","status":"affected","lessThan":"b3275dde570b6420106a715bb58a0af041b94d95","versionType":"git"},{"version":"6f51be3d37dff73cf8db771df4169f4c2f1cbf66","status":"affected","lessThan":"1fb79478695d92bab1c120ad3dad05252b02a29d","versionType":"git"},{"version":"6f51be3d37dff73cf8db771df4169f4c2f1cbf66","status":"affected","lessThan":"7a09c64b7da0abdec3919812e3d93ecc44069ed0","versionType":"git"},{"version":"6f51be3d37dff73cf8db771df4169f4c2f1cbf66","status":"affected","lessThan":"8bf037279b5869ae9331c42bb1527d2680ebba96","versionType":"git"},{"version":"6f51be3d37dff73cf8db771df4169f4c2f1cbf66","status":"affected","lessThan":"1e8cd93ae536581562bab4e1d8c5315bbc2548bf","versionType":"git"},{"version":"6f51be3d37dff73cf8db771df4169f4c2f1cbf66","status":"affected","lessThan":"66d461a92f32b6995b630625d350259b6b1f961b","versionType":"git"},{"version":"6f51be3d37dff73cf8db771df4169f4c2f1cbf66","status":"affected","lessThan":"9972e6b404884adae9eec7463e30d9b3c9a70b18","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/mmc/core/sdio_bus.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.36","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.36","versionType":"semver"},{"version":"4.9.332","status":"unaffected","lessThanOrEqual":"4.9.*","versionType":"semver"},{"version":"4.14.298","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.264","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.223","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.153","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.77","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.0.7","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/mmc/core/sdio_bus.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/b8b2965932e702b21e335ff30e1bb550f5a23b6f"},{"url":"https://git.kernel.org/stable/c/b3275dde570b6420106a715bb58a0af041b94d95"},{"url":"https://git.kernel.org/stable/c/1fb79478695d92bab1c120ad3dad05252b02a29d"},{"url":"https://git.kernel.org/stable/c/7a09c64b7da0abdec3919812e3d93ecc44069ed0"},{"url":"https://git.kernel.org/stable/c/8bf037279b5869ae9331c42bb1527d2680ebba96"},{"url":"https://git.kernel.org/stable/c/1e8cd93ae536581562bab4e1d8c5315bbc2548bf"},{"url":"https://git.kernel.org/stable/c/66d461a92f32b6995b630625d350259b6b1f961b"},{"url":"https://git.kernel.org/stable/c/9972e6b404884adae9eec7463e30d9b3c9a70b18"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:22:45.426Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.36","versionEndExcluding":"4.9.332"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.36","versionEndExcluding":"4.14.298"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.36","versionEndExcluding":"4.19.264"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.36","versionEndExcluding":"5.4.223"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.36","versionEndExcluding":"5.10.153"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.36","versionEndExcluding":"5.15.77"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.36","versionEndExcluding":"6.0.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.36","versionEndExcluding":"6.1"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}