realloc in get_offsets will return NULL otherwise and dwarf_getpubnames might think there was no issue and try to use that NULL pointer.
Signed-off-by: Mark Wielaard <[email protected]> --- libdw/ChangeLog | 2 +- libdw/dwarf_getpubnames.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/libdw/ChangeLog b/libdw/ChangeLog index 93651df..2aa878b 100644 --- a/libdw/ChangeLog +++ b/libdw/ChangeLog @@ -1,7 +1,7 @@ 2014-12-15 Mark Wielaard <[email protected]> * dwarf_getpubnames.c (get_offsets): Make sure whole unit fall inside - section data. + section data. Set error to DWARF_E_NO_ENTRY if cnt is zero. (dwarf_getpubnames): Make sure section data contains string zero terminator. diff --git a/libdw/dwarf_getpubnames.c b/libdw/dwarf_getpubnames.c index c8b9f9f..9fbfcbf 100644 --- a/libdw/dwarf_getpubnames.c +++ b/libdw/dwarf_getpubnames.c @@ -125,7 +125,7 @@ get_offsets (Dwarf *dbg) readp += len; } - if (mem == NULL) + if (mem == NULL || cnt == 0) { __libdw_seterrno (DWARF_E_NO_ENTRY); return -1; -- 1.8.3.1
