dwfl_segment_report_module can be called with the same module name, start and end address twice (probably because of a corrupt core file). In that case don't override the main.elf handle if it already exists.
https://sourceware.org/bugzilla/show_bug.cgi?id=28655 Signed-off-by: Mark Wielaard <m...@klomp.org> --- libdwfl/ChangeLog | 5 +++++ libdwfl/dwfl_segment_report_module.c | 2 +- 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/libdwfl/ChangeLog b/libdwfl/ChangeLog index 5e25c1b0..a896c2b4 100644 --- a/libdwfl/ChangeLog +++ b/libdwfl/ChangeLog @@ -1,3 +1,8 @@ +2021-12-08 Mark Wielaard <m...@klomp.org> + + * dwfl_segment_report_module.c (dwfl_segment_report_module): Check + Dwfl_Module isn't associated with an Elf before installing it. + 2021-12-08 Mark Wielaard <m...@klomp.org> * dwfl_segment_report_module.c (dwfl_segment_report_module): Don't diff --git a/libdwfl/dwfl_segment_report_module.c b/libdwfl/dwfl_segment_report_module.c index 5efc9d6a..8d749f4c 100644 --- a/libdwfl/dwfl_segment_report_module.c +++ b/libdwfl/dwfl_segment_report_module.c @@ -959,7 +959,7 @@ dwfl_segment_report_module (Dwfl *dwfl, int ndx, const char *name, elf->flags |= ELF_F_MALLOCED; } - if (elf != NULL) + if (elf != NULL && mod->main.elf == NULL) { /* Install the file in the module. */ mod->main.elf = elf; -- 2.30.2
