CVE Catalog

CVE-2026-72062

Low risk· EPSS 11%
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.21%

11th percentile - higher than 11% of all known CVEs

Summary

In the Linux kernel, the GPIO driver for MT7621 modifies bank-shared fields like 'rising' and 'falling' using non-atomic read-modify-write operations. Concurrent calls for different IRQs on the same bank can overwrite each other's configuration. A lock 'gpio_generic_lock_irqsave' has been added to protect these fields.

Risk Assessment

The risk is potential inconsistency in GPIO interrupt configuration, which could lead to malfunctioning devices or errors in interrupt handling.

Recommendation

It is recommended to update the Linux kernel to a version containing the fix that adds appropriate locks in the GPIO driver for MT7621.

Other vulnerabilities in Linux kernel

See all
Original NVD description (English source)

In the Linux kernel, the following vulnerability has been resolved: gpio: mt7621: avoid corruption of shared interrupt trigger state The bank-shared fields like 'rising' and 'falling' are modified using non-atomic read-modify-write operations. Since every gpio chip instance represents an entire bank of 32 pins, if 'mediatek_gpio_irq_type()' is called concurrently for different IRQs on the same bank a possible overwrite of each other's configuration is possible. Thus, protect this state with 'gpio_generic_lock_irqsave' lock in the same way it is handled in irp_chip 'mediatek_gpio_irq_mask()' and 'mediatek_gpio_irq_unmask()' callbacks.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS