https://sourceware.org/bugzilla/show_bug.cgi?id=21647
Bug ID: 21647
Summary: SEGV on unknown address in _bfd_vms_slurp_egsd
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: 0f563d575ba35a8cc5bd85425ed49cd5.c01e8a2cd0b571e1cf5e8b373d2bf653.min
Output: 0f563d575ba35a8cc5bd85425ed49cd5.c01e8a2cd0b571e1cf5e8b373d2bf653.txt
Error in "_bfd_vms_slurp_egsd": SEGV on unknown address 0x000006301bc8 (pc
0x000000e662c9 bp 0x7fffffffe130 sp 0x7fffffffe0a0 T0)
in _bfd_vms_slurp_egsd at bfd/vms-alpha.c:1319
(see
https://github.com/bminor/binutils-gdb/blob/a6cab9afd2c81465265c8d09569e3e6ef43d2954/bfd/vms-alpha.c#L1319)
in _bfd_vms_slurp_object_records at bfd/vms-alpha.c:2456
(see
https://github.com/bminor/binutils-gdb/blob/a6cab9afd2c81465265c8d09569e3e6ef43d2954/bfd/vms-alpha.c#L2456)
in alpha_vms_object_p at bfd/vms-alpha.c:2640
(see
https://github.com/bminor/binutils-gdb/blob/a6cab9afd2c81465265c8d09569e3e6ef43d2954/bfd/vms-alpha.c#L2640)
in bfd_check_format_matches at bfd/format.c:311
(see
https://github.com/bminor/binutils-gdb/blob/a6cab9afd2c81465265c8d09569e3e6ef43d2954/bfd/format.c#L311)
in display_object_bfd at binutils/objdump.c:3608
(see
https://github.com/bminor/binutils-gdb/blob/a6cab9afd2c81465265c8d09569e3e6ef43d2954/binutils/objdump.c#L3608)
in display_any_bfd at binutils/objdump.c:3699
(see
https://github.com/bminor/binutils-gdb/blob/a6cab9afd2c81465265c8d09569e3e6ef43d2954/binutils/objdump.c#L3699)
in display_file at binutils/objdump.c:3720
(see
https://github.com/bminor/binutils-gdb/blob/a6cab9afd2c81465265c8d09569e3e6ef43d2954/binutils/objdump.c#L3720)
in main at binutils/objdump.c:4024
(see
https://github.com/bminor/binutils-gdb/blob/a6cab9afd2c81465265c8d09569e3e6ef43d2954/binutils/objdump.c#L4024)
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