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| author | Theodore Ts'o <tytso@mit.edu> | 2018-03-30 04:56:09 +0300 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2018-03-30 04:56:09 +0300 |
| commit | 8e4b5eae5decd9dfe5a4ee369c22028f90ab4c44 (patch) | |
| tree | fed3ad9ebc9f07a4a2b8b02181c2cf83994c99a4 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | ce3fd194fcc6fbdc00ce095a852f22df97baa401 (diff) | |
| download | linux-8e4b5eae5decd9dfe5a4ee369c22028f90ab4c44.tar.xz | |
ext4: fail ext4_iget for root directory if unallocated
If the root directory has an i_links_count of zero, then when the file
system is mounted, then when ext4_fill_super() notices the problem and
tries to call iput() the root directory in the error return path,
ext4_evict_inode() will try to free the inode on disk, before all of
the file system structures are set up, and this will result in an OOPS
caused by a NULL pointer dereference.
This issue has been assigned CVE-2018-1092.
https://bugzilla.kernel.org/show_bug.cgi?id=199179
https://bugzilla.redhat.com/show_bug.cgi?id=1560777
Reported-by: Wen Xu <wen.xu@gatech.edu>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions