https://sourceware.org/bugzilla/show_bug.cgi?id=34322
Bug ID: 34322
Summary: objdump: assertion failure in
get_or_create_member_type with --map-global-vars
Product: binutils
Version: 2.47 (HEAD)
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: binutils
Assignee: unassigned at sourceware dot org
Reporter: 970429025 at qq dot com
Target Milestone: ---
Created attachment 16796
--> https://sourceware.org/bugzilla/attachment.cgi?id=16796&action=edit
The PoC attachment contains the input file (Assert_Fail_1) that triggers this
behavior.
Overview:
Running objdump with --map-global-vars on a input file causes the program to
terminate with SIGABRT.
The program does not exit gracefully and instead aborts through __assert_fail()
while processing DWARF global variable mapping information.
Steps to Reproduce:
./objdump --map-global-vars Assert_Fail_1
Actual Results:
objdump terminates with SIGABRT.
GDB output excerpt:
Program received signal SIGABRT, Aborted.
0x000074bb5dd869fc in pthread_kill () from /lib/x86_64-linux-gnu/libc.so.6
(gdb) bt
#0 0x000074bb5dd869fc in pthread_kill () from /lib/x86_64-linux-gnu/libc.so.6
#1 0x000074bb5dd32476 in raise () from /lib/x86_64-linux-gnu/libc.so.6
#2 0x000074bb5dd187f3 in abort () from /lib/x86_64-linux-gnu/libc.so.6
#3 0x000074bb5dd1871b in ?? () from /lib/x86_64-linux-gnu/libc.so.6
#4 0x000074bb5dd29e96 in __assert_fail () from /lib/x86_64-linux-gnu/libc.so.6
#5 0x000000000049ddba in get_or_create_member_type ()
#6 0x000000000048c748 in insert_element_in_list ()
#7 0x0000000000484ed3 in read_and_display_attr_value ()
#8 0x000000000047f511 in read_and_display_attr ()
#9 0x0000000000452f66 in process_debug_info ()
#10 0x00000000004728c8 in display_variable_mapping_info ()
#11 0x000000000043a2d9 in dump_global_variable_info ()
#12 0x000000000058b943 in bfd_map_over_sections ()
#13 0x0000000000439f75 in dump_dwarf_info ()
#14 0x00000000004372fc in dump_global_vars_info ()
#15 0x00000000004350f2 in dump_bfd ()
#16 0x0000000000434193 in display_object_bfd ()
#17 0x000000000043411c in display_any_bfd ()
#18 0x00000000004333e5 in display_file ()
#19 0x0000000000432441 in main ()
Expected Results:
objdump should exit normally, rather than terminating via SIGABRT.
Build & Platform:
binutils version: GNU Binutils 2.46.50.20260601
component: objdump
OS: Ubuntu 22.04.5 LTS
arch: x86_64
Additional Information:
The PoC attachment contains the input file that triggers the crash:
Assert_Fail_1.
Crash type: SIGABRT
Affected option: --map-global-vars
Crash location: get_or_create_member_type()
Fully reproducible.
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