[PATCH 0/2] fpga: zynqpl: fix bitstream header scan length checks

[Michal Simek <michal.simek@amd.com>]

Hi,

This series fixes bitstream header scan length checks in
check_data(), reachable from fpga load and fpga loadfs.

Patch 1 stops the bitstream header scan once there's no longer
enough room left for a full header. The old scan kept checking
positions near the end of the buffer that could never hold a
complete header, and a match there caused an unbounded header
read to go past the buffer end.

Patch 2 fixes zynq_loadfs() passing blocksize into
zynq_validate_bitstream() after fs_read(), even when actread
was smaller. Pass actread so the scan length matches the bytes
actually written into the buffer.

Thanks,
Michal


Suraj Kakade (2):
  fpga: zynqpl: use actread for bitstream scan in zynq_loadfs
  fpga: zynqpl: stop header scan once a full header can't fit

 drivers/fpga/zynqpl.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

---

-- 
2.43.0