{"affected":[{"defaultStatus":"unaffected","product":"Linux","source":"CNA: Linux","vendor":"Linux","versions":[{"lessThan":"9027ce4c037b566b658b8939a76326b7125e3627","status":"affected","version":"96fe6a2109db29cd15b90a093c16e6cb4b19371a","versionType":"git"},{"lessThan":"610f247f2772e4f92b63442125a1b7ade79898d8","status":"affected","version":"96fe6a2109db29cd15b90a093c16e6cb4b19371a","versionType":"git"},{"lessThan":"2d63433e8eaa3c91b2948190e395bc67009db0d9","status":"affected","version":"96fe6a2109db29cd15b90a093c16e6cb4b19371a","versionType":"git"},{"lessThan":"54947530663edcbaaee1314c01fdd8c72861b124","status":"affected","version":"96fe6a2109db29cd15b90a093c16e6cb4b19371a","versionType":"git"},{"lessThan":"ab91647acdf43b984824776559a452212eaeb21a","status":"affected","version":"96fe6a2109db29cd15b90a093c16e6cb4b19371a","versionType":"git"},{"lessThan":"b235393b9f43ff86a38ca2bde6372312ea215dc5","status":"affected","version":"96fe6a2109db29cd15b90a093c16e6cb4b19371a","versionType":"git"},{"lessThan":"53784073cbad18f75583fd3da9ffdfc4d1f05405","status":"affected","version":"96fe6a2109db29cd15b90a093c16e6cb4b19371a","versionType":"git"},{"lessThan":"3f6dae09fc8c306eb70fdfef70726e1f154e173a","status":"affected","version":"96fe6a2109db29cd15b90a093c16e6cb4b19371a","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","source":"CNA: Linux","vendor":"Linux","versions":[{"status":"affected","version":"2.6.14"},{"lessThan":"2.6.14","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.4.*","status":"unaffected","version":"5.4.295","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.239","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.186","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.142","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.94","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.34","versionType":"semver"},{"lessThanOrEqual":"6.15.*","status":"unaffected","version":"6.15.3","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"6.16","versionType":"original_commit_for_fix"}]},{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518-4 PN/DP MFP","source":"ADP: siemens-SADP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.5","versionType":"custom"}]},{"defaultStatus":"unknown","product":"SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP","source":"ADP: siemens-SADP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.5","versionType":"custom"}]},{"defaultStatus":"unknown","product":"SIPLUS S7-1500 CPU 1518-4 PN/DP MFP","source":"ADP: siemens-SADP","vendor":"Siemens","versions":[{"lessThan":"*","status":"affected","version":"V3.1.5","versionType":"custom"}]}],"cveId":"CVE-2025-38312","cwes":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfbdev: core: fbcvt: avoid division by 0 in fb_cvt_hperiod()\n\nIn fb_find_mode_cvt(), iff mode->refresh somehow happens to be 0x80000000,\ncvt.f_refresh will become 0 when multiplying it by 2 due to overflow. It's\nthen passed to fb_cvt_hperiod(), where it's used as a divider -- division\nby 0 will result in kernel oops. Add a sanity check for cvt.f_refresh to\navoid such overflow...\n\nFound by Linux Verification Center (linuxtesting.org) with the Svace static\nanalysis tool.","epss":{"date":"2026-11-05","percentile":0.07956,"score":0.00183},"exploits":[],"kev":null,"metrics":[],"modifiedAt":1793912552438,"publishedAt":1752133340647,"references":[{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/9027ce4c037b566b658b8939a76326b7125e3627"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/610f247f2772e4f92b63442125a1b7ade79898d8"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/2d63433e8eaa3c91b2948190e395bc67009db0d9"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/54947530663edcbaaee1314c01fdd8c72861b124"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/ab91647acdf43b984824776559a452212eaeb21a"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/b235393b9f43ff86a38ca2bde6372312ea215dc5"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/53784073cbad18f75583fd3da9ffdfc4d1f05405"},{"source":"CNA: Linux","tags":[],"url":"https://git.kernel.org/stable/c/3f6dae09fc8c306eb70fdfef70726e1f154e173a"},{"source":"ADP: CVE","tags":[],"url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"},{"source":"ADP: CVE","tags":[],"url":"https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"},{"source":"ADP: siemens-SADP","tags":[],"url":"https://cert-portal.siemens.com/productcert/html/ssa-082556.html"}],"remediation":[],"revision":"ec8ac5db2abeb915f1604890132b3d1e16b55b000f5cb63e1f3525c0692cf6ab","sources":[{"modifiedAt":1793912552438,"name":"CNA: Linux","retrievedAt":1793913650881,"url":"https://www.cve.org/CVERecord?id=CVE-2025-38312"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1793913671345,"url":"https://api.first.org/data/v1/epss?cve=CVE-2025-38312"}],"ssvc":{"assessedAt":1793912056461,"automatable":"no","exploitation":"none","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"fbdev: core: fbcvt: avoid division by 0 in fb_cvt_hperiod()","updatedAt":1793913671345}