{"id":"CVE-2022-50301","url":"https://www.cyber-defence.io/tools/cve/CVE-2022-50301","generatedAt":"2026-10-27T21:08:35.767Z","title":"In the Linux kernel, the following vulnerability has been resolved: iommu/omap: Fix buffer overflow in debugfs There are two issues here: 1) The \"len\" variable needs to be checked before the very first write.","description":"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.","published":"2025-09-15T15:15:42.000Z","lastModified":"2026-06-17T05:23:11.000Z","status":"Analyzed","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","cvss":{"version":"3.1","score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-787"],"affected":["linux/linux kernel"],"epss":{"score":0.00189,"percentile":0.08441,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.19%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://git.kernel.org/stable/c/0c7043a5b5c3b35f5dc8875757f71e7f491d64d4","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/184233a5202786b20220acd2d04ddf909ef18f29","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/2fee0dbfaeaaa4bda04279ce772c4572b1429d04","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/4010a1afaae1c0fb9c2cac5de703bed29b1f1782","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/648472df221f2bbffb433b964bcb87baccc586d8","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/706e359cf046c142db290244c3f4938b20fbe805","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/9814cc350e0765ce69244bf55ae4c8b29facd27e","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/bd0438f534b2e31b12f0b39b355c5dc2bbdaf854","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ec53b99b6b9da8b501f001595a6260c03b42d5b7","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2022-50301","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}