https://sourceware.org/bugzilla/show_bug.cgi?id=21610
Bug ID: 21610
Summary: SEGV on unknown address in bfd_getl16
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: 87b8c6bea5472c3e39858260e44d1a69.61d98fe75a0ab6e99d39aab1638f2d3d.min
Output: 87b8c6bea5472c3e39858260e44d1a69.61d98fe75a0ab6e99d39aab1638f2d3d.txt
Error in "bfd_getl16": SEGV on unknown address 0x60c000010249 (pc
0x0000009c41ec bp 0x7fffffffe0a0 sp 0x7fffffffe0a0 T0)
in bfd_getl16 at bfd/libbfd.c:505
(see
https://github.com/bminor/binutils-gdb/blob/291e62953900e0f4998224127bc56239e421cda9/bfd/libbfd.c#L505)
in _bfd_vms_slurp_egsd at bfd/vms-alpha.c:1140
(see
https://github.com/bminor/binutils-gdb/blob/291e62953900e0f4998224127bc56239e421cda9/bfd/vms-alpha.c#L1140)
in _bfd_vms_slurp_object_records at bfd/vms-alpha.c:2431
(see
https://github.com/bminor/binutils-gdb/blob/291e62953900e0f4998224127bc56239e421cda9/bfd/vms-alpha.c#L2431)
in alpha_vms_object_p at bfd/vms-alpha.c:2615
(see
https://github.com/bminor/binutils-gdb/blob/291e62953900e0f4998224127bc56239e421cda9/bfd/vms-alpha.c#L2615)
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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