CVE-2026-72424
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.
How to fix
- Linux Linuxece7b9ffde23e2ccd7567761ac27463ded43932c, 52c73b6992b46ed476590ed526faa033d4fbfc5d, bc1f61a9b97d65de21c2681bcf0b5b1392c58486, 1f6a4aec0d36647eb2f67cd69db22bd28cabe2cb, bb3e624808c981fe881cb79037be63e680ed7d38, a369f48be8de426a7d2bca18dbd46c2ad1138803 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | be7d9c9161b9c76edeff15e79edc2f256568fe05 ≤ v < ece7b9ffde23e2ccd7567761ac27463ded43932c, be7d9c9161b9c76edeff15e79edc2f256568fe05 ≤ v < 52c73b6992b46ed476590ed526faa033d4fbfc5d, be7d9c9161b9c76edeff15e79edc2f256568fe05 ≤ v < bc1f61a9b97d65de21c2681bcf0b5b1392c58486, be7d9c9161b9c76edeff15e79edc2f256568fe05 ≤ v < 1f6a4aec0d36647eb2f67cd69db22bd28cabe2cb, be7d9c9161b9c76edeff15e79edc2f256568fe05 ≤ v < bb3e624808c981fe881cb79037be63e680ed7d38, be7d9c9161b9c76edeff15e79edc2f256568fe05 ≤ v < a369f48be8de426a7d2bca18dbd46c2ad1138803, 5.16 | ece7b9ffde23e2ccd7567761ac27463ded43932c, 52c73b6992b46ed476590ed526faa033d4fbfc5d, bc1f61a9b97d65de21c2681bcf0b5b1392c58486, 1f6a4aec0d36647eb2f67cd69db22bd28cabe2cb, bb3e624808c981fe881cb79037be63e680ed7d38, a369f48be8de426a7d2bca18dbd46c2ad1138803 |
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