https://sourceware.org/bugzilla/show_bug.cgi?id=21611
Bug ID: 21611
Summary: SEGV on unknown address in bfd_getl32
Product: binutils
Version: 2.29 (HEAD)
Status: UNCONFIRMED
Severity: critical
Priority: P2
Component: binutils
Assignee: unassigned at sourceware dot org
Reporter: aadamski at quarkslab dot com
Target Milestone: ---
Hello there,
I have been fuzzing objdump with American Fuzzy Lop + ASAN/UBSAN.
Please find attached the minimized file causing the issue ("Input") and the
ASAN report log ("Output"). Below is the reduced stacktrace with links to the
corresponding source lines on a GitHub mirror.
The configuration settings used were `--enable-targets=all --disable-shared`.
The compilation flags used were `-g -O2 -fno-omit-frame-pointer
-fsanitize=address -fno-sanitize-recover=all`. The command used
was `objdump -afpxDSsgetTrR <file>`.
Let me know if there is any additional information I can provide.
--
Input: 4cd4829607fb7069aaf00a0816685a73.0802a7d9916d49983c01efffe49145f5.min
Output: 4cd4829607fb7069aaf00a0816685a73.0802a7d9916d49983c01efffe49145f5.txt
Error in "bfd_getl32": SEGV on unknown address 0x615008048104 (pc
0x0000009c4548 bp 0x7fffffffe140 sp 0x7fffffffe140 T0)
in bfd_getl32 at bfd/libbfd.c:557
(see
https://github.com/bminor/binutils-gdb/blob/291e62953900e0f4998224127bc56239e421cda9/bfd/libbfd.c#L557)
in _bfd_vms_slurp_eihs at bfd/vms-alpha.c:625
(see
https://github.com/bminor/binutils-gdb/blob/291e62953900e0f4998224127bc56239e421cda9/bfd/vms-alpha.c#L625)
in alpha_vms_object_p at bfd/vms-alpha.c:2592
(see
https://github.com/bminor/binutils-gdb/blob/291e62953900e0f4998224127bc56239e421cda9/bfd/vms-alpha.c#L2592)
in bfd_check_format_matches at bfd/format.c:311
(see
https://github.com/bminor/binutils-gdb/blob/291e62953900e0f4998224127bc56239e421cda9/bfd/format.c#L311)
in display_object_bfd at binutils/objdump.c:3605
(see
https://github.com/bminor/binutils-gdb/blob/291e62953900e0f4998224127bc56239e421cda9/binutils/objdump.c#L3605)
in display_any_bfd at binutils/objdump.c:3696
(see
https://github.com/bminor/binutils-gdb/blob/291e62953900e0f4998224127bc56239e421cda9/binutils/objdump.c#L3696)
in display_file at binutils/objdump.c:3717
(see
https://github.com/bminor/binutils-gdb/blob/291e62953900e0f4998224127bc56239e421cda9/binutils/objdump.c#L3717)
in main at binutils/objdump.c:4019
(see
https://github.com/bminor/binutils-gdb/blob/291e62953900e0f4998224127bc56239e421cda9/binutils/objdump.c#L4019)
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