{"id":"CVE-2026-98825","state":"PUBLISHED","title":"rtc: mpfs: fix unchecked devm_clk_get() error pointer in probe()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nrtc: mpfs: fix unchecked devm_clk_get() error pointer in probe()\n\ndevm_clk_get(&pdev->dev, \"rtcref\")'s return value was passed straight\ninto clk_get_rate() without checking it for an error first, unlike the\n\"rtc\" clock a few lines above which is correctly checked with\nIS_ERR(). clk_get_rate() only guards against a NULL clk, not an error\npointer:\n\n\tif (!clk)\n\t\treturn 0;\n\t...\n\trate = clk_core_get_rate_recalc(clk->core);\n\nso if devm_clk_get() ever returns an error pointer here (for example\nERR_PTR(-EPROBE_DEFER), which is the normal, expected outcome if the\nclkcfg clock-provider this RTC depends on has not registered its\nclocks yet by the time this driver probes), clk_get_rate() dereferences\nthat error pointer instead of returning 0, crashing instead of letting\nprobe defer.\n\nCapture the clock in the existing 'clk' local and check it with\nIS_ERR() before calling clk_get_rate(), matching the handling already\nused for the \"rtc\" clock in this same function.","publishedAt":"2026-10-18T15:49:17.605Z","updatedAt":"2026-10-30T12:40:01.280Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"0b31d703598dc1993867597bbd45e87d824fc427","status":"affected","lessThan":"7f59e824a4403e156cf930fe556b75139452099e","versionType":"git"},{"version":"0b31d703598dc1993867597bbd45e87d824fc427","status":"affected","lessThan":"ab741d1b714b4acc605f3d14cdc4120f87341ed1","versionType":"git"},{"version":"0b31d703598dc1993867597bbd45e87d824fc427","status":"affected","lessThan":"74dc7c52946e3d47c40edd0875adb7cc15937066","versionType":"git"},{"version":"0b31d703598dc1993867597bbd45e87d824fc427","status":"affected","lessThan":"cfd70c9b19846c524f2b6195a7484bdf22071ccf","versionType":"git"},{"version":"0b31d703598dc1993867597bbd45e87d824fc427","status":"affected","lessThan":"8a03f8422fa08eed335c51bccb612a3d81739ff2","versionType":"git"},{"version":"0b31d703598dc1993867597bbd45e87d824fc427","status":"affected","lessThan":"ac41b05d15db3134e839148290d67415ee0bdb58","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/rtc/rtc-mpfs.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.0","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.113","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.56","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.10","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/rtc/rtc-mpfs.c"]}],"references":["https://git.kernel.org/stable/c/7f59e824a4403e156cf930fe556b75139452099e","https://git.kernel.org/stable/c/ab741d1b714b4acc605f3d14cdc4120f87341ed1","https://git.kernel.org/stable/c/74dc7c52946e3d47c40edd0875adb7cc15937066","https://git.kernel.org/stable/c/cfd70c9b19846c524f2b6195a7484bdf22071ccf","https://git.kernel.org/stable/c/8a03f8422fa08eed335c51bccb612a3d81739ff2","https://git.kernel.org/stable/c/ac41b05d15db3134e839148290d67415ee0bdb58"],"weaknesses":[],"ingestedAt":"2026-10-30T13:00:06.648Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/98xxx/CVE-2026-98825.json","commit":"cb14bf1b43b0c9f05f7f40eae2246263fd430780","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98825","state":"PUBLISHED","datePublished":"2026-10-18T15:49:17.605Z","dateUpdated":"2026-10-30T12:40:01.280Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:25:14.372Z"},"containers":{"cna":{"title":"rtc: mpfs: fix unchecked devm_clk_get() error pointer in probe()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nrtc: mpfs: fix unchecked devm_clk_get() error pointer in probe()\n\ndevm_clk_get(&pdev->dev, \"rtcref\")'s return value was passed straight\ninto clk_get_rate() without checking it for an error first, unlike the\n\"rtc\" clock a few lines above which is correctly checked with\nIS_ERR(). clk_get_rate() only guards against a NULL clk, not an error\npointer:\n\n\tif (!clk)\n\t\treturn 0;\n\t...\n\trate = clk_core_get_rate_recalc(clk->core);\n\nso if devm_clk_get() ever returns an error pointer here (for example\nERR_PTR(-EPROBE_DEFER), which is the normal, expected outcome if the\nclkcfg clock-provider this RTC depends on has not registered its\nclocks yet by the time this driver probes), clk_get_rate() dereferences\nthat error pointer instead of returning 0, crashing instead of letting\nprobe defer.\n\nCapture the clock in the existing 'clk' local and check it with\nIS_ERR() before calling clk_get_rate(), matching the handling already\nused for the \"rtc\" clock in this same function."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"0b31d703598dc1993867597bbd45e87d824fc427","status":"affected","lessThan":"7f59e824a4403e156cf930fe556b75139452099e","versionType":"git"},{"version":"0b31d703598dc1993867597bbd45e87d824fc427","status":"affected","lessThan":"ab741d1b714b4acc605f3d14cdc4120f87341ed1","versionType":"git"},{"version":"0b31d703598dc1993867597bbd45e87d824fc427","status":"affected","lessThan":"74dc7c52946e3d47c40edd0875adb7cc15937066","versionType":"git"},{"version":"0b31d703598dc1993867597bbd45e87d824fc427","status":"affected","lessThan":"cfd70c9b19846c524f2b6195a7484bdf22071ccf","versionType":"git"},{"version":"0b31d703598dc1993867597bbd45e87d824fc427","status":"affected","lessThan":"8a03f8422fa08eed335c51bccb612a3d81739ff2","versionType":"git"},{"version":"0b31d703598dc1993867597bbd45e87d824fc427","status":"affected","lessThan":"ac41b05d15db3134e839148290d67415ee0bdb58","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/rtc/rtc-mpfs.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.0","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.113","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.56","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.10","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/rtc/rtc-mpfs.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/7f59e824a4403e156cf930fe556b75139452099e"},{"url":"https://git.kernel.org/stable/c/ab741d1b714b4acc605f3d14cdc4120f87341ed1"},{"url":"https://git.kernel.org/stable/c/74dc7c52946e3d47c40edd0875adb7cc15937066"},{"url":"https://git.kernel.org/stable/c/cfd70c9b19846c524f2b6195a7484bdf22071ccf"},{"url":"https://git.kernel.org/stable/c/8a03f8422fa08eed335c51bccb612a3d81739ff2"},{"url":"https://git.kernel.org/stable/c/ac41b05d15db3134e839148290d67415ee0bdb58"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-30T12:40:01.280Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.1.191"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.12.113"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"6.18.56"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"7.2.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.0","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}