In the Linux kernel, the following vulnerability has been resolved: fwctl: pds: Validate RPC input size before parsing The fwctl core allocates the device-specific RPC input buffer with fwctl_rpc.in_len and passes that buffer to the driver callback. pdsfc_fw_rpc() casts the buffer to struct fwctl_rpc_pds and then calls pdsfc_validate_rpc(), which reads fields from that structure before checking that the input buffer is large enough to contain it. A short in_len can make pds_fwctl read beyond
In the Linux kernel, the following vulnerability has been resolved:
fwctl: pds: Validate RPC input size before parsing
The fwctl core allocates the device-specific RPC input buffer with fwctl_rpc.in_len and passes that buffer to the driver callback.
pdsfc_fw_rpc() casts the buffer to struct fwctl_rpc_pds and then calls pdsfc_validate_rpc(), which reads fields from that structure before checking that the input buffer is large enough to contain it. A short in_len can make pds_fwctl read beyond the allocation.
Reject pds RPC buffers that are smaller than struct fwctl_rpc_pds before parsing any pds-specific fields.
为什么是这个 VPI(可解释·实验性)
VPI 计算依据
| 影响度(默认值（无数据）) | 55.00 |
| 利用信号(无额外利用信号) | ×1.00 |
| VPI | 55.00 |
VPI 公式 vpi-v1