fpga: altera-cvp: Avoid out-of-bounds read in trailing byte write

In the Linux kernel, the following vulnerability has been resolved: fpga: altera-cvp: Avoid out-of-bounds read in trailing byte write The trailing byte path in altera_cvp_send_block() dereferences a u32 pointer even when only 1-3 bytes remain in the input buffer. If the buffer ends at a page or scatterlist boundary, this can read past the valid image data and fault. Copy the remaining bytes into a zero-initialized u32 before writing the final word so only valid bytes are read from the input buffer.

Source published

11 Sep 2026 19:46:40 UTC

Source modified

19 Oct 2026 08:51:43 UTC

Observed here

23 Oct 2026 15:48:27 UTC

Source terms

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