tests/fuzz-tests/images/bko-155201-wrong-chunk-item-in-root-tree.raw.txt

   1 URL: https://bugzilla.kernel.org/show_bug.cgi?id=155201
   2 Lukas Lueg 2016-08-28 19:15:53 UTC
   3
   4 Created attachment 230921 [details]
   5 Image causing SIGFPE in btrfsck
   6
   7 News from the fuzzer. See the attached image to reproduce using btrfs-progs
   8 v4.7-42-g56e9586.
   9
  10
  11 [Thread debugging using libthread_db enabled]
  12 Using host libthread_db library "/lib64/libthread_db.so.1".
  13 checking extents
  14 Chunk[0, 4194304] existed.
  15 Chunk[18446744073709551607, 228, 0]: length(1), offset(0), type(4160) mismatch
  16 with block group[0, 192, 4194304]: offset(4194304), objectid(0), flags(2)
  17
  18 Program received signal SIGFPE, Arithmetic exception.
  19 0x000000000042b178 in calc_stripe_length (type=4160, length=1, num_stripes=0)
  20 at cmds-check.c:8018
  21 8018                    stripe_size /= num_stripes;
  22 #0  0x000000000042b178 in calc_stripe_length (type=4160, length=1,
  23 num_stripes=0) at cmds-check.c:8018
  24 #1  0x000000000042b56d in check_chunk_refs (silent=0,
  25 dev_extent_cache=0x7fffffffdd30, block_group_cache=0x7fffffffdd60,
  26 chunk_rec=0x6b92c0) at cmds-check.c:8101
  27 #2  check_chunks (chunk_cache=chunk_cache@entry=0x7fffffffdd80,
  28 block_group_cache=block_group_cache@entry=0x7fffffffdd60,
  29 dev_extent_cache=dev_extent_cache@entry=0x7fffffffdd30, good=good@entry=0x0,
  30 bad=bad@entry=0x0, rebuild=rebuild@entry=0x0, silent=0) at cmds-check.c:8165
  31 #3  0x000000000042bbdd in check_chunks_and_extents (root=root@entry=0x6b2cf0)
  32 at cmds-check.c:8524
  33 #4  0x000000000042e3cb in cmd_check (argc=<optimized out>, argv=<optimized
  34 out>) at cmds-check.c:11430
  35 #5  0x000000000040a416 in main (argc=2, argv=0x7fffffffe218) at btrfs.c:243