[Bug 203211] New: Infinite error messages on mounting crafted image

[bugzilla-daemon@bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=203211

            Bug ID: 203211
           Summary: Infinite error messages on mounting crafted image
           Product: File System
           Version: 2.5
    Kernel Version: 5.0.0
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: f2fs
          Assignee: filesystem_f2fs@kernel-bugs.kernel.org
          Reporter: jungyeon@gatech.edu
        Regression: No

Created attachment 282203
  --> https://bugzilla.kernel.org/attachment.cgi?id=282203&action=edit
The (compressed) crafted image which causes crash

- Overview
When mounting the attached crafted image and making a new file, I got this
error and the error messages keep repeating. 

The image is intentionally fuzzed from a normal f2fs image for testing and I
run with option CONFIG_F2FS_CHECK_FS on.

- Reproduces
mkdir test
mount -t f2fs tmp.img test
cd test
touch t

- Messages
[   58.820451] F2FS-fs (sdb): Inconsistent segment (1) type [1, 0] in SSA and
SIT
[   58.821485] F2FS-fs (sdb): Inconsistent segment (1) type [1, 0] in SSA and
SIT
[   58.822530] F2FS-fs (sdb): Inconsistent segment (1) type [1, 0] in SSA and
SIT
[   58.823571] F2FS-fs (sdb): Inconsistent segment (1) type [1, 0] in SSA and
SIT
[   58.824616] F2FS-fs (sdb): Inconsistent segment (1) type [1, 0] in SSA and
SIT
[   58.825640] F2FS-fs (sdb): Inconsistent segment (1) type [1, 0] in SSA and
SIT
[   58.826663] F2FS-fs (sdb): Inconsistent segment (1) type [1, 0] in SSA and
SIT
[   58.827698] F2FS-fs (sdb): Inconsistent segment (1) type [1, 0] in SSA and
SIT
[   58.828719] F2FS-fs (sdb): Inconsistent segment (1) type [1, 0] in SSA and
SIT
[   58.829759] F2FS-fs (sdb): Inconsistent segment (1) type [1, 0] in SSA and
SIT
[   58.830783] F2FS-fs (sdb): Inconsistent segment (1) type [1, 0] in SSA and
SIT
[   58.831828] F2FS-fs (sdb): Inconsistent segment (1) type [1, 0] in SSA and
SIT
[   58.832869] F2FS-fs (sdb): Inconsistent segment (1) type [1, 0] in SSA and
SIT
[   58.833888] F2FS-fs (sdb): Inconsistent segment (1) type [1, 0] in SSA and
SIT
[   58.834945] F2FS-fs (sdb): Inconsistent segment (1) type [1, 0] in SSA and
SIT
[   58.835996] F2FS-fs (sdb): Inconsistent segment (1) type [1, 0] in SSA and
SIT
[   58.837028] F2FS-fs (sdb): Inconsistent segment (1) type [1, 0] in SSA and
SIT
[   58.838051] F2FS-fs (sdb): Inconsistent segment (1) type [1, 0] in SSA and
SIT
[   58.839072] F2FS-fs (sdb): Inconsistent segment (1) type [1, 0] in SSA and
SIT
[   58.840100] F2FS-fs (sdb): Inconsistent segment (1) type [1, 0] in SSA and
SIT
[   58.841147] F2FS-fs (sdb): Inconsistent segment (1) type [1, 0] in SSA and
SIT
[   58.842186] F2FS-fs (sdb): Inconsistent segment (1) type [1, 0] in SSA and
SIT
[   58.843214] F2FS-fs (sdb): Inconsistent segment (1) type [1, 0] in SSA and
SIT
[   58.844267] F2FS-fs (sdb): Inconsistent segment (1) type [1, 0] in SSA and
SIT
[   58.845282] F2FS-fs (sdb): Inconsistent segment (1) type [1, 0] in SSA and
SIT
[   58.846305] F2FS-fs (sdb): Inconsistent segment (1) type [1, 0] in SSA and
SIT
[   58.847341] F2FS-fs (sdb): Inconsistent segment (1) type [1, 0] in SSA and
SIT
... (repeating)

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