diff options
Diffstat (limited to 'tests/fuzz-tests/images/bko-104131-fsck-oob-read.txt')
-rw-r--r-- | tests/fuzz-tests/images/bko-104131-fsck-oob-read.txt | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/tests/fuzz-tests/images/bko-104131-fsck-oob-read.txt b/tests/fuzz-tests/images/bko-104131-fsck-oob-read.txt new file mode 100644 index 00000000..0e829c2e --- /dev/null +++ b/tests/fuzz-tests/images/bko-104131-fsck-oob-read.txt @@ -0,0 +1,31 @@ +URL: https://bugzilla.kernel.org/show_bug.cgi?id=104131 +Hanno Boeck 2015-09-07 07:24:32 UTC + +Created attachment 186941 [details] +malformed btrfs filesystem causing oob read + +The attached malformed filesystem image will cause an invalid heap out of bounds memory read in btrfsck. + +This was found while fuzzing btrfs-progs with american fuzzy lop. + +Stack trace from Address Sanitizer: +==31289==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x60f00000f003 at pc 0x0000005d0dbb bp 0x7ffdf444c180 sp 0x7ffdf444c178 +READ of size 8 at 0x60f00000f003 thread T0 + #0 0x5d0dba in btrfs_header_bytenr /mnt/ram/btrfs-progs-v4.1.2/./ctree.h:1797:1 + #1 0x5d0dba in check_tree_block /mnt/ram/btrfs-progs-v4.1.2/disk-io.c:60 + #2 0x5d0dba in read_tree_block /mnt/ram/btrfs-progs-v4.1.2/disk-io.c:337 + #3 0x5dc00e in btrfs_setup_chunk_tree_and_device_map /mnt/ram/btrfs-progs-v4.1.2/disk-io.c:1169:30 + #4 0x5dcf89 in __open_ctree_fd /mnt/ram/btrfs-progs-v4.1.2/disk-io.c:1261:8 + #5 0x5dc50a in open_ctree_fs_info /mnt/ram/btrfs-progs-v4.1.2/disk-io.c:1302:9 + #6 0x52f22f in cmd_check /mnt/ram/btrfs-progs-v4.1.2/cmds-check.c:9333:9 + #7 0x4e7bcc in main /mnt/ram/btrfs-progs-v4.1.2/btrfs.c:245:7 + #8 0x7f98bb101f9f in __libc_start_main /var/tmp/portage/sys-libs/glibc-2.20-r2/work/glibc-2.20/csu/libc-start.c:289 + #9 0x41f748 in _start (/mnt/ram/btrfs/btrfs+0x41f748) + +0x60f00000f003 is located 3 bytes to the right of 176-byte region [0x60f00000ef50,0x60f00000f000) +allocated by thread T0 here: + #0 0x4bade8 in malloc (/mnt/ram/btrfs/btrfs+0x4bade8) + #1 0x622c24 in __alloc_extent_buffer /mnt/ram/btrfs-progs-v4.1.2/extent_io.c:541:7 + #2 0x622c24 in alloc_extent_buffer /mnt/ram/btrfs-progs-v4.1.2/extent_io.c:648 + #3 0x5cf436 in btrfs_find_create_tree_block /mnt/ram/btrfs-progs-v4.1.2/disk-io.c:186:9 + #4 0x5cf436 in read_tree_block /mnt/ram/btrfs-progs-v4.1.2/disk-io.c:314 |