Without the program header entry size we cannot search through the phdrs. https://sourceware.org/bugzilla/show_bug.cgi?id=28657
Signed-off-by: Mark Wielaard <m...@klomp.org> --- libdwfl/ChangeLog | 4 ++++ libdwfl/link_map.c | 2 +- 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/libdwfl/ChangeLog b/libdwfl/ChangeLog index 852b199a..8dd595f8 100644 --- a/libdwfl/ChangeLog +++ b/libdwfl/ChangeLog @@ -1,3 +1,7 @@ +2021-12-08 Mark Wielaard <m...@klomp.org> + + * link_map.c (dwfl_link_map_report): Make sure phent != 0. + 2021-12-08 Mark Wielaard <m...@klomp.org> * link_map.c (dwfl_link_map_report): Limit malloc size to max diff --git a/libdwfl/link_map.c b/libdwfl/link_map.c index 1c298a8e..623b3062 100644 --- a/libdwfl/link_map.c +++ b/libdwfl/link_map.c @@ -784,7 +784,7 @@ dwfl_link_map_report (Dwfl *dwfl, const void *auxv, size_t auxv_size, GElf_Xword dyn_filesz = 0; GElf_Addr dyn_bias = (GElf_Addr) -1; - if (phdr != 0 && phnum != 0) + if (phdr != 0 && phnum != 0 && phent != 0) { Dwfl_Module *phdr_mod; int phdr_segndx = INTUSE(dwfl_addrsegment) (dwfl, phdr, &phdr_mod); -- 2.30.2