EUVD-2022-55689Lifecycle Timeline
3Description
In the Linux kernel, the following vulnerability has been resolved: fpga: prevent integer overflow in dfl_feature_ioctl_set_irq() The "hdr.count * sizeof(s32)" multiplication can overflow on 32 bit systems leading to memory corruption. Use array_size() to fix that.
Analysis
In the Linux kernel, the following vulnerability has been resolved:
fpga: prevent integer overflow in dfl_feature_ioctl_set_irq()
The "hdr.count * sizeof(s32)" multiplication can overflow on 32 bit systems leading to memory corruption. Use array_size() to fix that.
Technical Context
An integer overflow occurs when an arithmetic operation produces a value that exceeds the maximum (or minimum) size of the integer type used to store it.
Remediation
Use safe integer arithmetic libraries. Check for overflow conditions before operations. Use appropriately sized integer types.
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External POC / Exploit Code
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