diff options
Diffstat (limited to 'tests/fuzz-tests/images/bko-169301-1-blocksize-zero.raw.txt')
| -rw-r--r-- | tests/fuzz-tests/images/bko-169301-1-blocksize-zero.raw.txt | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/tests/fuzz-tests/images/bko-169301-1-blocksize-zero.raw.txt b/tests/fuzz-tests/images/bko-169301-1-blocksize-zero.raw.txt new file mode 100644 index 00000000..c5ec8ee1 --- /dev/null +++ b/tests/fuzz-tests/images/bko-169301-1-blocksize-zero.raw.txt @@ -0,0 +1,134 @@ +URL: https://bugzilla.kernel.org/show_bug.cgi?id=169301 +Lukas Lueg 2016-09-18 09:07:55 UTC + +More news from the fuzzer. The attached image causes a heap-use-after-free +when running btrfsck with ASAN over it; using btrfs-progs v4.7.2-56-ge8c2013 + +==3439==ERROR: AddressSanitizer: heap-use-after-free on address 0x621000014170 at pc 0x0000005c05ae bp 0x7ffe84ef8d00 sp 0x7ffe84ef8cf8 +READ of size 4 at 0x621000014170 thread T0 + #0 0x5c05ad in free_extent_buffer /home/slave/dev/btrfsfuzz/src-asan/extent_io.c:579:10 + #1 0x59360c in btrfs_release_all_roots /home/slave/dev/btrfsfuzz/src-asan/disk-io.c:1096:3 + #2 0x5961bb in close_ctree_fs_info /home/slave/dev/btrfsfuzz/src-asan/disk-io.c:1805:2 + #3 0x5246e7 in close_ctree /home/slave/dev/btrfsfuzz/src-asan/./disk-io.h:155:9 + #4 0x51e334 in cmd_check /home/slave/dev/btrfsfuzz/src-asan/cmds-check.c:11618:2 + #5 0x4f0ee1 in main /home/slave/dev/btrfsfuzz/src-asan/btrfs.c:243:8 + #6 0x7f792c60e730 in __libc_start_main (/lib64/libc.so.6+0x20730) + #7 0x421358 in _start (/home/slave/dev/btrfsfuzz/bin-asan/bin/btrfs+0x421358) + +Probably somewhat related to this: The image crash000255.img causes btrfsck to +try to allocate around 3.5gb of memory in one chunk, sending ASAN into a death +spiral. On systems with sufficient memory, the heap-use-after-free turns up. + +parent transid verify failed on 0 wanted 3472328296227680304 found 0 +parent transid verify failed on 0 wanted 3472328296227680304 found 0 +Ignoring transid failure +Chunk[256, 228, 0]: length(4194304), offset(0), type(2) is not found in block group +Chunk[256, 228, 0] stripe[1, 0] is not found in dev extent +Chunk[256, 228, 4194304]: length(1638400), offset(4194304), type(5) is not found in block group +Chunk[256, 228, 4194304] stripe[1, 4194304] is not found in dev extent +Chunk[256, 228, 5832704]: length(1638400), offset(5832704), type(5) is not found in block group +Chunk[256, 228, 5832704] stripe[1, 5832704] is not found in dev extent +ref mismatch on [0 4096] extent item 0, found 1 +Backref 0 parent 0 root 0 not found in extent tree +backpointer mismatch on [0 4096] +bad extent [0, 4096), type mismatch with chunk +ref mismatch on [131072 4096] extent item 0, found 1 +Backref 131072 parent 3 root 3 not found in extent tree +backpointer mismatch on [131072 4096] +ref mismatch on [4198400 4096] extent item 0, found 1 +Backref 4198400 parent 1 root 1 not found in extent tree +backpointer mismatch on [4198400 4096] +ref mismatch on [4231168 4096] extent item 0, found 1 +Backref 4231168 parent 7 root 7 not found in extent tree +backpointer mismatch on [4231168 4096] +ref mismatch on [3472328296227680304 3472328296227680304] extent item 0, found 1 +Backref 3472328296227680304 root 1 owner 2 offset 0 num_refs 0 not found in extent tree +Incorrect local backref count on 3472328296227680304 root 1 owner 2 offset 0 found 1 wanted 0 back 0x60700000ddf0 +backpointer mismatch on [3472328296227680304 3472328296227680304] +Dev extent's total-byte(0) is not equal to byte-used(7471104) in dev[1, 216, 1] +checking free space cache +checking fs roots +root 5 root dir 3472328296227680304 not found +checking csums +checking root refs +checking quota groups +ERROR: while mapping refs: -5 +================================================================= +==3439==ERROR: AddressSanitizer: heap-use-after-free on address 0x621000014170 at pc 0x0000005c05ae bp 0x7ffe84ef8d00 sp 0x7ffe84ef8cf8 +READ of size 4 at 0x621000014170 thread T0 + #0 0x5c05ad in free_extent_buffer /home/slave/dev/btrfsfuzz/src-asan/extent_io.c:579:10 + #1 0x59360c in btrfs_release_all_roots /home/slave/dev/btrfsfuzz/src-asan/disk-io.c:1096:3 + #2 0x5961bb in close_ctree_fs_info /home/slave/dev/btrfsfuzz/src-asan/disk-io.c:1805:2 + #3 0x5246e7 in close_ctree /home/slave/dev/btrfsfuzz/src-asan/./disk-io.h:155:9 + #4 0x51e334 in cmd_check /home/slave/dev/btrfsfuzz/src-asan/cmds-check.c:11618:2 + #5 0x4f0ee1 in main /home/slave/dev/btrfsfuzz/src-asan/btrfs.c:243:8 + #6 0x7f792c60e730 in __libc_start_main (/lib64/libc.so.6+0x20730) + #7 0x421358 in _start (/home/slave/dev/btrfsfuzz/bin-asan/bin/btrfs+0x421358) + +0x621000014170 is located 112 bytes inside of 4224-byte region [0x621000014100,0x621000015180) +freed by thread T0 here: + #0 0x4bf990 in __interceptor_cfree.localalias.1 (/home/slave/dev/btrfsfuzz/bin-asan/bin/btrfs+0x4bf990) + #1 0x5c0582 in free_extent_buffer /home/slave/dev/btrfsfuzz/src-asan/extent_io.c:591:3 + #2 0x5c1b18 in alloc_extent_buffer /home/slave/dev/btrfsfuzz/src-asan/extent_io.c:644:4 + #3 0x58de0c in btrfs_find_create_tree_block /home/slave/dev/btrfsfuzz/src-asan/disk-io.c:193:9 + #4 0x58e880 in read_tree_block_fs_info /home/slave/dev/btrfsfuzz/src-asan/disk-io.c:339:7 + #5 0x5f2d74 in read_tree_block /home/slave/dev/btrfsfuzz/src-asan/./disk-io.h:112:9 + #6 0x5f2b52 in travel_tree /home/slave/dev/btrfsfuzz/src-asan/qgroup-verify.c:692:7 + #7 0x5f299b in add_refs_for_implied /home/slave/dev/btrfsfuzz/src-asan/qgroup-verify.c:748:8 + #8 0x5efd39 in map_implied_refs /home/slave/dev/btrfsfuzz/src-asan/qgroup-verify.c:766:9 + #9 0x5eed89 in qgroup_verify_all /home/slave/dev/btrfsfuzz/src-asan/qgroup-verify.c:1366:8 + #10 0x51ea14 in cmd_check /home/slave/dev/btrfsfuzz/src-asan/cmds-check.c:11571:9 + #11 0x4f0ee1 in main /home/slave/dev/btrfsfuzz/src-asan/btrfs.c:243:8 + #12 0x7f792c60e730 in __libc_start_main (/lib64/libc.so.6+0x20730) + +previously allocated by thread T0 here: + #0 0x4bfca0 in calloc (/home/slave/dev/btrfsfuzz/bin-asan/bin/btrfs+0x4bfca0) + #1 0x5c16ca in __alloc_extent_buffer /home/slave/dev/btrfsfuzz/src-asan/extent_io.c:542:7 + #2 0x5c1b26 in alloc_extent_buffer /home/slave/dev/btrfsfuzz/src-asan/extent_io.c:646:8 + #3 0x58de0c in btrfs_find_create_tree_block /home/slave/dev/btrfsfuzz/src-asan/disk-io.c:193:9 + #4 0x58e880 in read_tree_block_fs_info /home/slave/dev/btrfsfuzz/src-asan/disk-io.c:339:7 + #5 0x5918a2 in read_tree_block /home/slave/dev/btrfsfuzz/src-asan/./disk-io.h:112:9 + #6 0x591712 in find_and_setup_root /home/slave/dev/btrfsfuzz/src-asan/disk-io.c:647:15 + #7 0x593243 in setup_root_or_create_block /home/slave/dev/btrfsfuzz/src-asan/disk-io.c:966:8 + #8 0x592a06 in btrfs_setup_all_roots /home/slave/dev/btrfsfuzz/src-asan/disk-io.c:1045:8 + #9 0x5948fe in __open_ctree_fd /home/slave/dev/btrfsfuzz/src-asan/disk-io.c:1341:8 + #10 0x5942b5 in open_ctree_fs_info /home/slave/dev/btrfsfuzz/src-asan/disk-io.c:1387:9 + #11 0x51dff2 in cmd_check /home/slave/dev/btrfsfuzz/src-asan/cmds-check.c:11382:9 + #12 0x4f0ee1 in main /home/slave/dev/btrfsfuzz/src-asan/btrfs.c:243:8 + #13 0x7f792c60e730 in __libc_start_main (/lib64/libc.so.6+0x20730) + +SUMMARY: AddressSanitizer: heap-use-after-free /home/slave/dev/btrfsfuzz/src-asan/extent_io.c:579:10 in free_extent_buffer +Shadow bytes around the buggy address: + 0x0c427fffa7d0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa + 0x0c427fffa7e0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa + 0x0c427fffa7f0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa + 0x0c427fffa800: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa + 0x0c427fffa810: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa +=>0x0c427fffa820: fd fd fd fd fd fd fd fd fd fd fd fd fd fd[fd]fd + 0x0c427fffa830: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd + 0x0c427fffa840: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd + 0x0c427fffa850: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd + 0x0c427fffa860: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd + 0x0c427fffa870: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd +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 +==3439==ABORTING |