CVE-2026-72062

Summary

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux4ba9c3afda41213ec98c30053e32963892e6dc7c < 207d3ebf36f654a43a934addeb4d6775cb2dd667affected
LinuxLinux4ba9c3afda41213ec98c30053e32963892e6dc7c < 877a243006788aaa586b2d087f27c9f3628071b0affected
LinuxLinux4ba9c3afda41213ec98c30053e32963892e6dc7c < d3b9026ef78da3018a7d2c5a9c9d611de6d45c47affected
LinuxLinux4ba9c3afda41213ec98c30053e32963892e6dc7c < a60a40c9ba30edd06d3fb4215fdf430ed968728eaffected
LinuxLinux4ba9c3afda41213ec98c30053e32963892e6dc7c < 1781172526d1092323af443fa03f00e6de560401affected
LinuxLinux4.19affected
LinuxLinux0 < 4.19unaffected
LinuxLinux6.6.148 <= 6.6.*unaffected
LinuxLinux6.12.101 <= 6.12.*unaffected
LinuxLinux6.18.40 <= 6.18.*unaffected
LinuxLinux7.1.5 <= 7.1.*unaffected
LinuxLinux7.2 <= *unaffected

Weaknesses

References