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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-72424

rtc: msc313: fix NULL deref in shared IRQ handler at probe

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Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: rtc: msc313: fix NULL deref in shared IRQ handler at probe msc313_rtc_probe() calls devm_request_irq() with IRQF_SHARED and &pdev->dev as the cookie, but platform_set_drvdata() is only called later after the clock setup. With a shared IRQ line, another device on the same line can trigger the handler in that window. The handler does dev_get_drvdata() on the cookie, gets NULL, and dereferences priv->rtc_base in interrupt context. Pass priv as the cookie directly so the handler reads it from dev_id without the lookup, removing the dependency on probe order.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • be7d9c9161b9c76edeff15e79edc2f256568fe05 to < ece7b9ffde23e2ccd7567761ac27463ded43932caffected
  • be7d9c9161b9c76edeff15e79edc2f256568fe05 to < 52c73b6992b46ed476590ed526faa033d4fbfc5daffected
  • be7d9c9161b9c76edeff15e79edc2f256568fe05 to < bc1f61a9b97d65de21c2681bcf0b5b1392c58486affected
  • be7d9c9161b9c76edeff15e79edc2f256568fe05 to < 1f6a4aec0d36647eb2f67cd69db22bd28cabe2cbaffected
  • be7d9c9161b9c76edeff15e79edc2f256568fe05 to < bb3e624808c981fe881cb79037be63e680ed7d38affected
  • be7d9c9161b9c76edeff15e79edc2f256568fe05 to < a369f48be8de426a7d2bca18dbd46c2ad1138803affected

Linux Linux

Default version status: affected

  • 5.16affected
  • 0 to < 5.16unaffected
  • 6.1.178 to ≤ 6.1.*unaffected
  • 6.6.145 to ≤ 6.6.*unaffected
  • 6.12.97 to ≤ 6.12.*unaffected
  • 6.18.40 to ≤ 6.18.*unaffected
  • 7.1.5 to ≤ 7.1.*unaffected
  • 7.2 to ≤ *unaffected

References