[Bug-tar] undefined behavior with standard archive

[Agostino Sarubbo]

Hello all,

after have compiled tar with asan/ubsan I noticed an undefined behavior with 
the tar archive itself:


# tar -xf /usr/portage/distfiles/tar-1.29.tar.bz2 -C /tmp/
buffer.c:937:31: runtime error: index 4096 out of bounds for type 'char [512]'
extract.c:1190:30: runtime error: index 7333 out of bounds for type 'char 
[512]'

I hope this is not a duplicate.

-- 
Agostino Sarubbo
Gentoo Linux Developer