Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 4ba9c3afda41213ec98c30053e32963892e6dc7c before bddf9314a57a243dd11ed945ba11e146e331257e; affected 4ba9c3afda41213ec98c30053e32963892e6dc7c before 207d3ebf36f654a43a934addeb4d6775cb2dd667; affected 4ba9c3afda41213ec98c30053e32963892e6dc7c before 877a243006788aaa586b2d087f27c9f3628071b0; affected 4ba9c3afda41213ec98c30053e32963892e6dc7c before d3b9026ef78da3018a7d2c5a9c9d611de6d45c47; affected 4ba9c3afda41213ec98c30053e32963892e6dc7c before a60a40c9ba30edd06d3fb4215fdf430ed968728e; affected 4ba9c3afda41213ec98c30053e32963892e6dc7c before 1781172526d1092323af443fa03f00e6de560401 |
| Linux / Linux | affected 4.19; unaffected 0 before 4.19; unaffected 6.1.184 through 6.1.*; unaffected 6.6.148 through 6.6.*; unaffected 6.12.101 through 6.12.*; unaffected 6.18.40 through 6.18.*; unaffected 7.1.5 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/bddf9314a57a243dd11ed945ba11e146e331257e
- https://git.kernel.org/stable/c/207d3ebf36f654a43a934addeb4d6775cb2dd667
- https://git.kernel.org/stable/c/877a243006788aaa586b2d087f27c9f3628071b0
- https://git.kernel.org/stable/c/d3b9026ef78da3018a7d2c5a9c9d611de6d45c47
- https://git.kernel.org/stable/c/a60a40c9ba30edd06d3fb4215fdf430ed968728e
- https://git.kernel.org/stable/c/1781172526d1092323af443fa03f00e6de560401