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| author | Oliver Neukum <oneukum@suse.com> | 2022-02-15 11:35:47 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-02-15 14:56:10 +0000 |
| commit | 8d2b1a1ec9f559d30b724877da4ce592edc41fdc (patch) | |
| tree | 2b5bad2d091e5bf2cb4f403ffb9305250a394594 /net | |
| parent | 7e5b6a5c8c44310784c88c1c198dde79f6402f7b (diff) | |
| download | linux-stable-8d2b1a1ec9f559d30b724877da4ce592edc41fdc.tar.gz linux-stable-8d2b1a1ec9f559d30b724877da4ce592edc41fdc.tar.bz2 linux-stable-8d2b1a1ec9f559d30b724877da4ce592edc41fdc.zip | |
CDC-NCM: avoid overflow in sanity checking
A broken device may give an extreme offset like 0xFFF0
and a reasonable length for a fragment. In the sanity
check as formulated now, this will create an integer
overflow, defeating the sanity check. Both offset
and offset + len need to be checked in such a manner
that no overflow can occur.
And those quantities should be unsigned.
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
0 files changed, 0 insertions, 0 deletions