[PATCH 1/3] ARM: compressed: Pass the actual output length to the decompressor
Linus Walleij
linus.walleij at linaro.org
Wed Apr 12 14:42:25 PDT 2023
On Wed, Apr 12, 2023 at 11:21 PM Jonathan Neuschäfer
<j.neuschaefer at gmx.net> wrote:
> ZSTD writes outside of the space that is necessary for the uncompressed
> data, when it is told it has unlimited output length. To fix this, pass
> the actual output length (the length of the uncompressed kernel) to the
> decompressor.
>
> The uncompressed length is already stored as a little endian 32-bit
> constant before the input_data_end symbol.
>
> Signed-off-by: Jonathan Neuschäfer <j.neuschaefer at gmx.net>
Really neat fix!
Reviewed-by: Linus Walleij <linus.walleij at linaro.org>
Yours,
Linus Walleij
More information about the linux-arm-kernel
mailing list