[PATCH] binfmt_elf bss padding fix
authorakpm@osdl.org <akpm@osdl.org>
Tue, 11 Oct 2005 15:29:08 +0000 (08:29 -0700)
committerLinus Torvalds <torvalds@g5.osdl.org>
Tue, 11 Oct 2005 16:46:54 +0000 (09:46 -0700)
commit6de505173e24e76bb33a2595312e0c2b44d49e58
tree0d06e061a70b337627b7e83985d736c0b4f50f33
parenta0c111c631e7ab4abd68920debd44259160812ef
[PATCH] binfmt_elf bss padding fix

Nir Tzachar <tzachar@cs.bgu.ac.il> points out that if an ELF file specifies a
zero-length bss at a whacky address, we cannot load that binary because
padzero() tries to zero out the end of the page at the whacky address, and
that may not be writeable.

See also http://bugzilla.kernel.org/show_bug.cgi?id=5411

So teach load_elf_binary() to skip the bss settng altogether if the elf file
has a zero-length bss segment.

Cc: Roland McGrath <roland@redhat.com>
Cc: Daniel Jacobowitz <dan@debian.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
fs/binfmt_elf.c