'table cellpadding' consums lots of memory

[kcwu]

echo '<table cellpadding=1070000000>0</table>' | ./w3m -T text/html -dump

this needs more than 1GB memory. Although w3m can finish render, I am wondering should w3m really need to allocate such amount of memory? maybe truncate the number instead?

echo '<table cellpadding=40700000000 border>0' | ./w3m -T text/html -dump

This needs more than 4GB and failed with following message:

GC Warning: Out of Memory! Heap size: 4539 MiB. Returning NULL!
Out of memory: 18446744073314787007 bytes unavailable!

18446744073314787007 looks like integer overflow?

My machine is 64bit ubuntu 14.04. w3m was compiled with default gcc.

This is found with afl-fuzz.

[tats]

Fixed, thank you.