{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2022-50846", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-30T12:06:07.134Z", "datePublished": "2025-12-30T12:11:03.286Z", "dateUpdated": "2025-12-30T12:11:03.286Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-12-30T12:11:03.286Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: via-sdmmc: fix return value check of mmc_add_host()\n\nmmc_add_host() may return error, if we ignore its return value,\nit will lead two issues:\n1. The memory that allocated in mmc_alloc_host() is leaked.\n2. In the remove() path, mmc_remove_host() will be called to\n delete device, but it's not added yet, it will lead a kernel\n crash because of null-ptr-deref in device_del().\n\nFix this by checking the return value and goto error path which\nwill call mmc_free_host()."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/mmc/host/via-sdmmc.c"], "versions": [{"version": "f0bf7f61b8405224bc52fc9a3ccd167a68126e00", "lessThan": "076bcd2c93e16b05c10564e299d6e5d26a766d00", "status": "affected", "versionType": "git"}, {"version": "f0bf7f61b8405224bc52fc9a3ccd167a68126e00", "lessThan": "12b8e81b77c05c658efd9cde3585bbd65ae39b59", "status": "affected", "versionType": "git"}, {"version": "f0bf7f61b8405224bc52fc9a3ccd167a68126e00", "lessThan": "95025a8dd0ec015872f6c16473fe04d6264e68ca", "status": "affected", "versionType": "git"}, {"version": "f0bf7f61b8405224bc52fc9a3ccd167a68126e00", "lessThan": "f59ef2a47a228e51322ad76752a55a8917c56e38", "status": "affected", "versionType": "git"}, {"version": "f0bf7f61b8405224bc52fc9a3ccd167a68126e00", "lessThan": "63400da6cd37a9793c19bb6aed7131b58b975a04", "status": "affected", "versionType": "git"}, {"version": "f0bf7f61b8405224bc52fc9a3ccd167a68126e00", "lessThan": "0959cc1685eb19774300d43ef25e318b457b156b", "status": "affected", "versionType": "git"}, {"version": "f0bf7f61b8405224bc52fc9a3ccd167a68126e00", "lessThan": "0ec94795114edc7e24ec71849dce42bfa61dafa3", "status": "affected", "versionType": "git"}, {"version": "f0bf7f61b8405224bc52fc9a3ccd167a68126e00", "lessThan": "ba91b413983a9235792523c6b9f7ba2586c4d75d", "status": "affected", "versionType": "git"}, {"version": "f0bf7f61b8405224bc52fc9a3ccd167a68126e00", "lessThan": "e4e46fb61e3bb4628170810d3f2b996b709b90d9", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/mmc/host/via-sdmmc.c"], "versions": [{"version": "2.6.31", "status": "affected"}, {"version": "0", "lessThan": "2.6.31", "status": "unaffected", "versionType": "semver"}, {"version": "4.9.337", "lessThanOrEqual": "4.9.*", "status": "unaffected", "versionType": "semver"}, {"version": "4.14.303", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "semver"}, {"version": "4.19.270", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.229", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.163", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.86", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.0.16", "lessThanOrEqual": "6.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.2", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.31", "versionEndExcluding": "4.9.337"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.31", "versionEndExcluding": "4.14.303"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.31", "versionEndExcluding": "4.19.270"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.31", "versionEndExcluding": "5.4.229"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": 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"https://git.kernel.org/stable/c/f59ef2a47a228e51322ad76752a55a8917c56e38"}, {"url": "https://git.kernel.org/stable/c/63400da6cd37a9793c19bb6aed7131b58b975a04"}, {"url": "https://git.kernel.org/stable/c/0959cc1685eb19774300d43ef25e318b457b156b"}, {"url": "https://git.kernel.org/stable/c/0ec94795114edc7e24ec71849dce42bfa61dafa3"}, {"url": "https://git.kernel.org/stable/c/ba91b413983a9235792523c6b9f7ba2586c4d75d"}, {"url": "https://git.kernel.org/stable/c/e4e46fb61e3bb4628170810d3f2b996b709b90d9"}], "title": "mmc: via-sdmmc: fix return value check of mmc_add_host()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: via-sdmmc: fix return value check of mmc_add_host()\n\nmmc_add_host() may return error, if we ignore its return value,\nit will lead two issues:\n1. The memory that allocated in mmc_alloc_host() is leaked.\n2. In the remove() path, mmc_remove_host() will be called to\n delete device, but it's not added yet, it will lead a kernel\n crash because of null-ptr-deref in device_del().\n\nFix this by checking the return value and goto error path which\nwill call mmc_free_host()."}], "id": "CVE-2022-50846", "lastModified": "2025-12-31T20:43:05.160", "metrics": {}, "published": "2025-12-30T13:15:59.243", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/076bcd2c93e16b05c10564e299d6e5d26a766d00"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0959cc1685eb19774300d43ef25e318b457b156b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0ec94795114edc7e24ec71849dce42bfa61dafa3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/12b8e81b77c05c658efd9cde3585bbd65ae39b59"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/63400da6cd37a9793c19bb6aed7131b58b975a04"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/95025a8dd0ec015872f6c16473fe04d6264e68ca"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ba91b413983a9235792523c6b9f7ba2586c4d75d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e4e46fb61e3bb4628170810d3f2b996b709b90d9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f59ef2a47a228e51322ad76752a55a8917c56e38"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: mmc: via-sdmmc: fix return value check of mmc_add_host()", "id": "2426137", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2426137"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["No description is available for this CVE."], "name": "CVE-2022-50846", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2025-12-30T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-50846\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-50846\nhttps://lore.kernel.org/linux-cve-announce/2025123021-CVE-2022-50846-caa2@gregkh/T"], "threat_severity": "Low"}

{}