diff options
Diffstat (limited to 'tests/fuzz-tests/images/bko-156731.raw.txt')
| -rw-r--r-- | tests/fuzz-tests/images/bko-156731.raw.txt | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/tests/fuzz-tests/images/bko-156731.raw.txt b/tests/fuzz-tests/images/bko-156731.raw.txt new file mode 100644 index 00000000..aea35f1f --- /dev/null +++ b/tests/fuzz-tests/images/bko-156731.raw.txt @@ -0,0 +1,83 @@ +URL: https://bugzilla.kernel.org/show_bug.cgi?id=156731 +Lukas Lueg 2016-09-13 19:53:59 UTC + +More news from the fuzzer. The attached image causes btrfsck to +buffer-overflow. Using btrfs-progs v4.7-42-g56e9586, compiled with ASAN +(doesn't crash without) + +==17647==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x621000017980 at pc 0x00000052dde3 bp 0x7ffecc974fe0 sp 0x7ffecc974fd8 +READ of size 4 at 0x621000017980 thread T0 + #0 0x52dde2 in btrfs_extent_data_ref_count /home/lukas/dev/btrfsfuzz/src-asan/./ctree.h:1582:1 + #1 0x5329ae in run_next_block /home/lukas/dev/btrfsfuzz/src-asan/cmds-check.c:6380:6 + #2 0x52f584 in deal_root_from_list /home/lukas/dev/btrfsfuzz/src-asan/cmds-check.c:8391:10 + #3 0x520f81 in check_chunks_and_extents /home/lukas/dev/btrfsfuzz/src-asan/cmds-check.c:8558:8 + #4 0x51e5a9 in cmd_check /home/lukas/dev/btrfsfuzz/src-asan/cmds-check.c:11493:9 + #5 0x4f0ee1 in main /home/lukas/dev/btrfsfuzz/src-asan/btrfs.c:243:8 + #6 0x7faced2c8730 in __libc_start_main (/lib64/libc.so.6+0x20730) + #7 0x421358 in _start (/home/lukas/dev/btrfsfuzz/bin-asan/bin/btrfs+0x421358) + +cat crashing_images/id:000047,sig:11,src:000343+000051,op:splice,rep:4.log +================================================================= +==17647==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x621000017980 at pc 0x00000052dde3 bp 0x7ffecc974fe0 sp 0x7ffecc974fd8 +READ of size 4 at 0x621000017980 thread T0 + #0 0x52dde2 in btrfs_extent_data_ref_count /home/lukas/dev/btrfsfuzz/src-asan/./ctree.h:1582:1 + #1 0x5329ae in run_next_block /home/lukas/dev/btrfsfuzz/src-asan/cmds-check.c:6380:6 + #2 0x52f584 in deal_root_from_list /home/lukas/dev/btrfsfuzz/src-asan/cmds-check.c:8391:10 + #3 0x520f81 in check_chunks_and_extents /home/lukas/dev/btrfsfuzz/src-asan/cmds-check.c:8558:8 + #4 0x51e5a9 in cmd_check /home/lukas/dev/btrfsfuzz/src-asan/cmds-check.c:11493:9 + #5 0x4f0ee1 in main /home/lukas/dev/btrfsfuzz/src-asan/btrfs.c:243:8 + #6 0x7faced2c8730 in __libc_start_main (/lib64/libc.so.6+0x20730) + #7 0x421358 in _start (/home/lukas/dev/btrfsfuzz/bin-asan/bin/btrfs+0x421358) + +0x621000017980 is located 0 bytes to the right of 4224-byte region [0x621000016900,0x621000017980) +allocated by thread T0 here: + #0 0x4bfca0 in calloc (/home/lukas/dev/btrfsfuzz/bin-asan/bin/btrfs+0x4bfca0) + #1 0x5c16ca in __alloc_extent_buffer /home/lukas/dev/btrfsfuzz/src-asan/extent_io.c:542:7 + #2 0x5c1b26 in alloc_extent_buffer /home/lukas/dev/btrfsfuzz/src-asan/extent_io.c:646:8 + #3 0x58de0c in btrfs_find_create_tree_block /home/lukas/dev/btrfsfuzz/src-asan/disk-io.c:193:9 + #4 0x58e880 in read_tree_block_fs_info /home/lukas/dev/btrfsfuzz/src-asan/disk-io.c:339:7 + #5 0x5918a2 in read_tree_block /home/lukas/dev/btrfsfuzz/src-asan/./disk-io.h:112:9 + #6 0x591712 in find_and_setup_root /home/lukas/dev/btrfsfuzz/src-asan/disk-io.c:647:15 + #7 0x593243 in setup_root_or_create_block /home/lukas/dev/btrfsfuzz/src-asan/disk-io.c:966:8 + #8 0x592850 in btrfs_setup_all_roots /home/lukas/dev/btrfsfuzz/src-asan/disk-io.c:1031:8 + #9 0x5948fe in __open_ctree_fd /home/lukas/dev/btrfsfuzz/src-asan/disk-io.c:1341:8 + #10 0x5942b5 in open_ctree_fs_info /home/lukas/dev/btrfsfuzz/src-asan/disk-io.c:1387:9 + #11 0x51dff2 in cmd_check /home/lukas/dev/btrfsfuzz/src-asan/cmds-check.c:11382:9 + #12 0x4f0ee1 in main /home/lukas/dev/btrfsfuzz/src-asan/btrfs.c:243:8 + #13 0x7faced2c8730 in __libc_start_main (/lib64/libc.so.6+0x20730) + +SUMMARY: AddressSanitizer: heap-buffer-overflow /home/lukas/dev/btrfsfuzz/src-asan/./ctree.h:1582:1 in btrfs_extent_data_ref_count +Shadow bytes around the buggy address: + 0x0c427fffaee0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + 0x0c427fffaef0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + 0x0c427fffaf00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + 0x0c427fffaf10: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 + 0x0c427fffaf20: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +=>0x0c427fffaf30:[fa]fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa + 0x0c427fffaf40: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa + 0x0c427fffaf50: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa + 0x0c427fffaf60: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa + 0x0c427fffaf70: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa + 0x0c427fffaf80: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa +Shadow byte legend (one shadow byte represents 8 application bytes): + Addressable: 00 + Partially addressable: 01 02 03 04 05 06 07 + Heap left redzone: fa + Heap right redzone: fb + Freed heap region: fd + Stack left redzone: f1 + Stack mid redzone: f2 + Stack right redzone: f3 + Stack partial redzone: f4 + Stack after return: f5 + Stack use after scope: f8 + Global redzone: f9 + Global init order: f6 + Poisoned by user: f7 + Container overflow: fc + Array cookie: ac + Intra object redzone: bb + ASan internal: fe + Left alloca redzone: ca + Right alloca redzone: cb +==17647==ABORTING |