{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-72394","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-08-09T03:40:39.924Z","datePublished":"2026-08-15T05:56:21.707Z","dateUpdated":"2026-08-17T05:13:48.410Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-17T05:13:48.410Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nhwmon: (aspeed-g6-pwm-tach) Guard fan RPM calculation against divide-by-zero\n\nSashiko reports:\n\nIn the aspeed-g6-pwm-tacho driver, the aspeed_tach_val_to_rpm() function\ncalculates the fan RPM using the tachometer value. However, it does not\ncheck if the tachometer value is zero before performing the division.\n\nIf the hardware reports a tachometer value of 0 (which can happen due to\nan extremely fast pulse, a stuck edge, or a hardware glitch), the\ncalculated tach_div evaluates to 0. The subsequent call to do_div() with\ntach_div as the divisor triggers a divide-by-zero exception, leading to\na kernel panic.\n\nCheck the divisor against zero to fix the problem."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/hwmon/aspeed-g6-pwm-tach.c"],"versions":[{"version":"7e1449cd15d1096157d1a9923b82e37602fb7eb0","lessThan":"a3f98bd397398e2d4a7f98e006b5aaf4d54ebdf3","status":"affected","versionType":"git"},{"version":"7e1449cd15d1096157d1a9923b82e37602fb7eb0","lessThan":"898ca04b096b9e4640300eab91468c826a1ec92b","status":"affected","versionType":"git"},{"version":"7e1449cd15d1096157d1a9923b82e37602fb7eb0","lessThan":"fb8a5afe6f1f8aa7f19c6dda23d277dd6ae5d9e1","status":"affected","versionType":"git"},{"version":"7e1449cd15d1096157d1a9923b82e37602fb7eb0","lessThan":"fe87b8dc67f1b2c64e76a66e78468c533d3c44ca","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/hwmon/aspeed-g6-pwm-tach.c"],"versions":[{"version":"6.9","status":"affected"},{"version":"0","lessThan":"6.9","status":"unaffected","versionType":"semver"},{"version":"6.12.97","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.40","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.1.5","lessThanOrEqual":"7.1.*","status":"unaffected","versionType":"semver"},{"version":"7.2","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":"6.9","versionEndExcluding":"6.12.97"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.9","versionEndExcluding":"6.18.40"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.9","versionEndExcluding":"7.1.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.9","versionEndExcluding":"7.2"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/a3f98bd397398e2d4a7f98e006b5aaf4d54ebdf3"},{"url":"https://git.kernel.org/stable/c/898ca04b096b9e4640300eab91468c826a1ec92b"},{"url":"https://git.kernel.org/stable/c/fb8a5afe6f1f8aa7f19c6dda23d277dd6ae5d9e1"},{"url":"https://git.kernel.org/stable/c/fe87b8dc67f1b2c64e76a66e78468c533d3c44ca"}],"title":"hwmon: (aspeed-g6-pwm-tach) Guard fan RPM calculation against divide-by-zero","x_generator":{"engine":"bippy-1.2.0"}}}}