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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-07-03 16:06:57 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-07-03 16:12:04 -0700
commit4a3a99045177369700c60d074c0e525e8093b0fc (patch)
treeccadaf9779f3f84f843c971bba5fe45383be049d /fs
parentecca47ce8294843045e7465d76fee84dbf07a004 (diff)
lz4: add overrun checks to lz4_uncompress_unknownoutputsize()
Jan points out that I forgot to make the needed fixes to the lz4_uncompress_unknownoutputsize() function to mirror the changes done in lz4_decompress() with regards to potential pointer overflows. The only in-kernel user of this function is the zram code, which only takes data from a valid compressed buffer that it made itself, so it's not a big issue. But due to external kernel modules using this function, it's better to be safe here. Reported-by: Jan Beulich <JBeulich@suse.com> Cc: "Don A. Bailey" <donb@securitymouse.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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