{"id":"CVE-2022-50301","summary":"iommu/omap: Fix buffer overflow in debugfs","details":"In the Linux kernel, the following vulnerability has been resolved:\n\niommu/omap: Fix buffer overflow in debugfs\n\nThere are two issues here:\n\n1) The \"len\" variable needs to be checked before the very first write.\n   Otherwise if omap2_iommu_dump_ctx() with \"bytes\" less than 32 it is a\n   buffer overflow.\n2) The snprintf() function returns the number of bytes that *would* have\n   been copied if there were enough space.  But we want to know the\n   number of bytes which were *actually* copied so use scnprintf()\n   instead.","modified":"2026-04-02T08:28:24.399207Z","published":"2025-09-15T14:45:57.019Z","related":["SUSE-SU-2025:03615-1","SUSE-SU-2025:03628-1","SUSE-SU-2025:3716-1","SUSE-SU-2025:3761-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50301.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0c7043a5b5c3b35f5dc8875757f71e7f491d64d4"},{"type":"WEB","url":"https://git.kernel.org/stable/c/184233a5202786b20220acd2d04ddf909ef18f29"},{"type":"WEB","url":"https://git.kernel.org/stable/c/2fee0dbfaeaaa4bda04279ce772c4572b1429d04"},{"type":"WEB","url":"https://git.kernel.org/stable/c/4010a1afaae1c0fb9c2cac5de703bed29b1f1782"},{"type":"WEB","url":"https://git.kernel.org/stable/c/648472df221f2bbffb433b964bcb87baccc586d8"},{"type":"WEB","url":"https://git.kernel.org/stable/c/706e359cf046c142db290244c3f4938b20fbe805"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9814cc350e0765ce69244bf55ae4c8b29facd27e"},{"type":"WEB","url":"https://git.kernel.org/stable/c/bd0438f534b2e31b12f0b39b355c5dc2bbdaf854"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ec53b99b6b9da8b501f001595a6260c03b42d5b7"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50301.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-50301"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"bd4396f09a4a9e77423e92ec9448217ab46f6edf"},{"fixed":"706e359cf046c142db290244c3f4938b20fbe805"},{"fixed":"ec53b99b6b9da8b501f001595a6260c03b42d5b7"},{"fixed":"648472df221f2bbffb433b964bcb87baccc586d8"},{"fixed":"4010a1afaae1c0fb9c2cac5de703bed29b1f1782"},{"fixed":"2fee0dbfaeaaa4bda04279ce772c4572b1429d04"},{"fixed":"0c7043a5b5c3b35f5dc8875757f71e7f491d64d4"},{"fixed":"bd0438f534b2e31b12f0b39b355c5dc2bbdaf854"},{"fixed":"9814cc350e0765ce69244bf55ae4c8b29facd27e"},{"fixed":"184233a5202786b20220acd2d04ddf909ef18f29"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-50301.json"}}],"schema_version":"1.7.5"}