https://sourceware.org/bugzilla/show_bug.cgi?id=23529
Mark Wielaard <mark at klomp dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |FIXED
--- Comment #2 from Mark Wielaard <mark at klomp dot org> ---
commit 6983e59b727458a6c64d9659c85f08218bc4fcda
Author: Mark Wielaard <m...@klomp.org>
Date: Sat Aug 18 19:51:27 2018 +0200
libdw: Check end of attributes list consistently.
dwarf_child (__libdw_find_attr), dwarf_getabbrevattr[_data] and
dwarf_getattrs all assume the end of the attribute list is when
both the name (code) and form of the attribute are zero.
dwarf_getabbrev (__libdw_getabbrev) and dwarf_hasattr assume the
end of the attribute list is when either the name (code) or the
form of the attribute is zero.
The DWARF spec says: "The series of attribute specifications ends
with an entry containing 0 for the name and 0 for the form." So
the first check is correct.
Make sure dwarf_getabbrev and dwarf_hasattr use the same check.
This is important since all other functions expect dwarf_getabbrev
(__libdw_getabbrev) to have done a data sanity check of the attribute.
So if the ending condition is different it could cause a crash.
https://sourceware.org/bugzilla/show_bug.cgi?id=23529
Signed-off-by: Mark Wielaard <m...@klomp.org>
--
You are receiving this mail because:
You are on the CC list for the bug.
