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| author | Theodore Ts'o <tytso@mit.edu> | 2018-08-27 01:47:09 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-09-29 03:07:34 -0700 |
| commit | 23f57cb1f1a3bddfccddc6f7026461b2a4d9bcc7 (patch) | |
| tree | 171a3a10d58d906aea7ab1140640d8fe6879cb17 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | 0ec459ec174031fad02a55e622cf2fc0d2e75a25 (diff) | |
ext4: check to make sure the rename(2)'s destination is not freed
commit b50282f3241acee880514212d88b6049fb5039c8 upstream.
If the destination of the rename(2) system call exists, the inode's
link count (i_nlinks) must be non-zero. If it is, the inode can end
up on the orphan list prematurely, leading to all sorts of hilarity,
including a use-after-free.
https://bugzilla.kernel.org/show_bug.cgi?id=200931
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reported-by: Wen Xu <wen.xu@gatech.edu>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions