virtiofsd: check input buffer size in fuse_lowlevel.c ops

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Each FUSE operation involves parsing the input buffer.  Currently the
code assumes the input buffer is large enough for the expected
arguments.  This patch uses fuse_mbuf_iter to check the size.

Most operations are simple to convert.  Some are more complicated due to
variable-length inputs or different sizes depending on the protocol
version.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Sergio Lopez <slp@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>

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Stefan Hajnoczi 2019-02-28 16:38:31 +00:00 committed by Dr. David Alan Gilbert

parent 0ba8c3c6fc

commit 7099575441

1 changed files with 456 additions and 125 deletions

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tools/virtiofsd/fuse_lowlevel.c

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