{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2021-47652", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-02-26T01:48:21.520Z", "datePublished": "2025-02-26T01:54:18.089Z", "dateUpdated": "2026-05-11T13:58:38.576Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T13:58:38.576Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nvideo: fbdev: smscufx: Fix null-ptr-deref in ufx_usb_probe()\n\nI got a null-ptr-deref report:\n\nBUG: kernel NULL pointer dereference, address: 0000000000000000\n...\nRIP: 0010:fb_destroy_modelist+0x38/0x100\n...\nCall Trace:\n ufx_usb_probe.cold+0x2b5/0xac1 [smscufx]\n usb_probe_interface+0x1aa/0x3c0 [usbcore]\n really_probe+0x167/0x460\n...\n ret_from_fork+0x1f/0x30\n\nIf fb_alloc_cmap() fails in ufx_usb_probe(), fb_destroy_modelist() will\nbe called to destroy modelist in the error handling path. But modelist\nhas not been initialized yet, so it will result in null-ptr-deref.\n\nInitialize modelist before calling fb_alloc_cmap() to fix this bug." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/video/fbdev/smscufx.c" ], "versions": [ { "version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5", "lessThan": "d1b6a1f0c23b7164250479bf92e2893291dca539", "status": "affected", "versionType": "git" }, { "version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5", "lessThan": "0fd28daec73525382e5c992db8743bf76e42cd5c", "status": "affected", "versionType": "git" }, { "version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5", "lessThan": "dd3a6cc7385b89ec2303f39dfc3bafa4e24cec4b", "status": "affected", "versionType": "git" }, { "version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5", "lessThan": "da8b269cc0a2526ebeaccbe2484c999eb0f822cf", "status": "affected", "versionType": "git" }, { "version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5", "lessThan": "64ec3e678d76419f207b9cdd338dda438ca10b1c", "status": "affected", "versionType": "git" }, { "version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5", "lessThan": "c420b540db4b5d69de0a36d8b9d9a6a79a04f05a", "status": "affected", "versionType": "git" }, { "version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5", "lessThan": "d396c651e2b508b6179bb678cc029f3becbf5170", "status": "affected", "versionType": "git" }, { "version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5", "lessThan": "9280ef235b05e8f19f8bc6d547b992f0a0ef398d", "status": "affected", "versionType": "git" }, { "version": "3c8a63e22a0802fd56380f6ab305b419f18eb6f5", "lessThan": "1791f487f877a9e83d81c8677bd3e7b259e7cb27", "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/video/fbdev/smscufx.c" ], "versions": [ { "version": "3.2", "status": "affected" }, { "version": "0", "lessThan": "3.2", "status": "unaffected", "versionType": "semver" }, { "version": "4.9.311", "lessThanOrEqual": "4.9.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.14.276", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.19.238", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.189", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.110", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.33", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.16.19", "lessThanOrEqual": "5.16.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.17.2", "lessThanOrEqual": "5.17.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.18", "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": "3.2", "versionEndExcluding": "4.9.311" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "4.14.276" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "4.19.238" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "5.4.189" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "5.10.110" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "5.15.33" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "5.16.19" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "5.17.2" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.2", "versionEndExcluding": "5.18" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/d1b6a1f0c23b7164250479bf92e2893291dca539" }, { "url": "https://git.kernel.org/stable/c/0fd28daec73525382e5c992db8743bf76e42cd5c" }, { "url": "https://git.kernel.org/stable/c/dd3a6cc7385b89ec2303f39dfc3bafa4e24cec4b" }, { "url": "https://git.kernel.org/stable/c/da8b269cc0a2526ebeaccbe2484c999eb0f822cf" }, { "url": "https://git.kernel.org/stable/c/64ec3e678d76419f207b9cdd338dda438ca10b1c" }, { "url": "https://git.kernel.org/stable/c/c420b540db4b5d69de0a36d8b9d9a6a79a04f05a" }, { "url": "https://git.kernel.org/stable/c/d396c651e2b508b6179bb678cc029f3becbf5170" }, { "url": "https://git.kernel.org/stable/c/9280ef235b05e8f19f8bc6d547b992f0a0ef398d" }, { "url": "https://git.kernel.org/stable/c/1791f487f877a9e83d81c8677bd3e7b259e7cb27" } ], "title": "video: fbdev: smscufx: Fix null-ptr-deref in ufx_usb_probe()", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "cvssV3_1": { "scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE" } }, { "other": { "type": "ssvc", "content": { "id": "CVE-2021-47652", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2025-10-01T19:50:21.892843Z" } } } ], "problemTypes": [ { "descriptions": [ { "lang": "en", "type": "CWE", "cweId": "CWE-476", "description": "CWE-476 NULL Pointer Dereference" } ] } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-10-01T19:57:07.382Z" } } ] } }