From 05b6d8b187dba66d92d2d7d7f48ca26090c1aac8 Mon Sep 17 00:00:00 2001 From: David Sterba Date: Thu, 8 Sep 2016 14:12:25 +0200 Subject: btrfs-progs: tests: add fuzzed image for a bad backref Reported-by: Lukas Lueg Signed-off-by: David Sterba --- .../images/bko-155181-bad-backref.raw.txt | 22 +++++++++++++++++++++ .../images/bko-155181-bad-backref.raw.xz | Bin 0 -> 3684 bytes 2 files changed, 22 insertions(+) create mode 100644 tests/fuzz-tests/images/bko-155181-bad-backref.raw.txt create mode 100644 tests/fuzz-tests/images/bko-155181-bad-backref.raw.xz (limited to 'tests/fuzz-tests') diff --git a/tests/fuzz-tests/images/bko-155181-bad-backref.raw.txt b/tests/fuzz-tests/images/bko-155181-bad-backref.raw.txt new file mode 100644 index 00000000..440641e9 --- /dev/null +++ b/tests/fuzz-tests/images/bko-155181-bad-backref.raw.txt @@ -0,0 +1,22 @@ +ULR: https://bugzilla.kernel.org/show_bug.cgi?id=155181 +Lukas Lueg 2016-08-28 10:52:32 UTC + +More news from the fuzzer. The attached image causes btrfsck to reach abort() +in in cmds-check.c:add_tree_backref(); using btrfs-progs v4.7-42-g56e9586. + +[Thread debugging using libthread_db enabled] +Using host libthread_db library "/lib64/libthread_db.so.1". +Checking filesystem on crash2.bin +UUID: 5cb33553-6f6d-4ce8-83fd-20af5a2f8181 + +Program received signal SIGABRT, Aborted. +0x00007ffff6fae6f5 in raise () from /lib64/libc.so.6 +#0 0x00007ffff6fae6f5 in raise () from /lib64/libc.so.6 +#1 0x00007ffff6fb02fa in abort () from /lib64/libc.so.6 +#2 0x000000000041fbe1 in add_tree_backref (extent_cache=extent_cache@entry=0x7fffffffdd20, bytenr=bytenr@entry=131200, parent=parent@entry=0, root=3, found_ref=found_ref@entry=0) at cmds-check.c:4869 +#3 0x0000000000423538 in process_extent_item (root=root@entry=0x6b2cf0, extent_cache=extent_cache@entry=0x7fffffffdd20, eb=eb@entry=0x6af7c0, slot=slot@entry=1) at cmds-check.c:5452 +#4 0x000000000042a605 in run_next_block (root=root@entry=0x6b2cf0, bits=bits@entry=0x6b4ff0, bits_nr=bits_nr@entry=1024, last=last@entry=0x7fffffffd878, pending=pending@entry=0x7fffffffdd00, seen=seen@entry=0x7fffffffdd10, reada=0x7fffffffdcf0, nodes=0x7fffffffdce0, extent_cache=0x7fffffffdd20, chunk_cache=0x7fffffffdd80, dev_cache=0x7fffffffdd90, block_group_cache=0x7fffffffdd60, dev_extent_cache=0x7fffffffdd30, ri=0x6b9000) at cmds-check.c:6280 +#5 0x000000000042afb6 in deal_root_from_list (list=list@entry=0x7fffffffda10, root=root@entry=0x6b2cf0, bits=bits@entry=0x6b4ff0, bits_nr=bits_nr@entry=1024, pending=pending@entry=0x7fffffffdd00, seen=seen@entry=0x7fffffffdd10, reada=0x7fffffffdcf0, nodes=0x7fffffffdce0, extent_cache=0x7fffffffdd20, chunk_cache=0x7fffffffdd80, dev_cache=0x7fffffffdd90, block_group_cache=0x7fffffffdd60, dev_extent_cache=0x7fffffffdd30) at cmds-check.c:8338 +#6 0x000000000042bb15 in check_chunks_and_extents (root=root@entry=0x6b2cf0) at cmds-check.c:8505 +#7 0x000000000042e3cb in cmd_check (argc=, argv=) at cmds-check.c:11430 +#8 0x000000000040a416 in main (argc=2, argv=0x7fffffffe218) at btrfs.c:243 diff --git a/tests/fuzz-tests/images/bko-155181-bad-backref.raw.xz b/tests/fuzz-tests/images/bko-155181-bad-backref.raw.xz new file mode 100644 index 00000000..ff5fe859 Binary files /dev/null and b/tests/fuzz-tests/images/bko-155181-bad-backref.raw.xz differ -- cgit v1.2.3