jffs2: Prevent rtime decompress memory corruption

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commit fe051552f5 upstream.

The rtime decompression routine does not fully check bounds during the
entirety of the decompression pass and can corrupt memory outside the
decompression buffer if the compressed data is corrupted. This adds the
required check to prevent this failure mode.

Cc: stable@vger.kernel.org
Signed-off-by: Kinsey Moore <kinsey.moore@oarcorp.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Kinsey Moore 2024-07-23 15:58:05 -05:00 • committed by Greg Kroah-Hartman

parent 547b7f8fde

commit dc39b08fcc

1 changed files with 3 additions and 0 deletions

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fs/jffs2/compr_rtime.c

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