{"id":"CVE-2026-72424","state":"PUBLISHED","title":"rtc: msc313: fix NULL deref in shared IRQ handler at probe","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nrtc: msc313: fix NULL deref in shared IRQ handler at probe\n\nmsc313_rtc_probe() calls devm_request_irq() with IRQF_SHARED and\n&pdev->dev as the cookie, but platform_set_drvdata() is only called\nlater after the clock setup. With a shared IRQ line, another device\non the same line can trigger the handler in that window. The\nhandler does dev_get_drvdata() on the cookie, gets NULL, and\ndereferences priv->rtc_base in interrupt context.\n\nPass priv as the cookie directly so the handler reads it from\ndev_id without the lookup, removing the dependency on probe order.","publishedAt":"2026-08-15T05:56:42.335Z","updatedAt":"2026-08-17T05:14:23.414Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"be7d9c9161b9c76edeff15e79edc2f256568fe05","status":"affected","lessThan":"ece7b9ffde23e2ccd7567761ac27463ded43932c","versionType":"git"},{"version":"be7d9c9161b9c76edeff15e79edc2f256568fe05","status":"affected","lessThan":"52c73b6992b46ed476590ed526faa033d4fbfc5d","versionType":"git"},{"version":"be7d9c9161b9c76edeff15e79edc2f256568fe05","status":"affected","lessThan":"bc1f61a9b97d65de21c2681bcf0b5b1392c58486","versionType":"git"},{"version":"be7d9c9161b9c76edeff15e79edc2f256568fe05","status":"affected","lessThan":"1f6a4aec0d36647eb2f67cd69db22bd28cabe2cb","versionType":"git"},{"version":"be7d9c9161b9c76edeff15e79edc2f256568fe05","status":"affected","lessThan":"bb3e624808c981fe881cb79037be63e680ed7d38","versionType":"git"},{"version":"be7d9c9161b9c76edeff15e79edc2f256568fe05","status":"affected","lessThan":"a369f48be8de426a7d2bca18dbd46c2ad1138803","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/rtc/rtc-msc313.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.16","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.16","versionType":"semver"},{"version":"6.1.178","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.145","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.97","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.40","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","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-msc313.c"]}],"references":["https://git.kernel.org/stable/c/ece7b9ffde23e2ccd7567761ac27463ded43932c","https://git.kernel.org/stable/c/52c73b6992b46ed476590ed526faa033d4fbfc5d","https://git.kernel.org/stable/c/bc1f61a9b97d65de21c2681bcf0b5b1392c58486","https://git.kernel.org/stable/c/1f6a4aec0d36647eb2f67cd69db22bd28cabe2cb","https://git.kernel.org/stable/c/bb3e624808c981fe881cb79037be63e680ed7d38","https://git.kernel.org/stable/c/a369f48be8de426a7d2bca18dbd46c2ad1138803"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/72xxx/CVE-2026-72424.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-72424","state":"PUBLISHED","datePublished":"2026-08-15T05:56:42.335Z","dateUpdated":"2026-08-17T05:14:23.414Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-08-09T03:40:39.928Z"},"containers":{"cna":{"title":"rtc: msc313: fix NULL deref in shared IRQ handler at probe","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nrtc: msc313: fix NULL deref in shared IRQ handler at probe\n\nmsc313_rtc_probe() calls devm_request_irq() with IRQF_SHARED and\n&pdev->dev as the cookie, but platform_set_drvdata() is only called\nlater after the clock setup. With a shared IRQ line, another device\non the same line can trigger the handler in that window. The\nhandler does dev_get_drvdata() on the cookie, gets NULL, and\ndereferences priv->rtc_base in interrupt context.\n\nPass priv as the cookie directly so the handler reads it from\ndev_id without the lookup, removing the dependency on probe order."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"be7d9c9161b9c76edeff15e79edc2f256568fe05","status":"affected","lessThan":"ece7b9ffde23e2ccd7567761ac27463ded43932c","versionType":"git"},{"version":"be7d9c9161b9c76edeff15e79edc2f256568fe05","status":"affected","lessThan":"52c73b6992b46ed476590ed526faa033d4fbfc5d","versionType":"git"},{"version":"be7d9c9161b9c76edeff15e79edc2f256568fe05","status":"affected","lessThan":"bc1f61a9b97d65de21c2681bcf0b5b1392c58486","versionType":"git"},{"version":"be7d9c9161b9c76edeff15e79edc2f256568fe05","status":"affected","lessThan":"1f6a4aec0d36647eb2f67cd69db22bd28cabe2cb","versionType":"git"},{"version":"be7d9c9161b9c76edeff15e79edc2f256568fe05","status":"affected","lessThan":"bb3e624808c981fe881cb79037be63e680ed7d38","versionType":"git"},{"version":"be7d9c9161b9c76edeff15e79edc2f256568fe05","status":"affected","lessThan":"a369f48be8de426a7d2bca18dbd46c2ad1138803","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/rtc/rtc-msc313.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.16","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.16","versionType":"semver"},{"version":"6.1.178","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.145","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.97","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.40","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","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-msc313.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/ece7b9ffde23e2ccd7567761ac27463ded43932c"},{"url":"https://git.kernel.org/stable/c/52c73b6992b46ed476590ed526faa033d4fbfc5d"},{"url":"https://git.kernel.org/stable/c/bc1f61a9b97d65de21c2681bcf0b5b1392c58486"},{"url":"https://git.kernel.org/stable/c/1f6a4aec0d36647eb2f67cd69db22bd28cabe2cb"},{"url":"https://git.kernel.org/stable/c/bb3e624808c981fe881cb79037be63e680ed7d38"},{"url":"https://git.kernel.org/stable/c/a369f48be8de426a7d2bca18dbd46c2ad1138803"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-17T05:14:23.414Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.1.178"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.6.145"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.12.97"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"6.18.40"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"7.1.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.16","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}