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| author |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-01-23 14:48:54 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-01-31 14:07:59 +0100 |
| commit | 36991ca68db9dd43bac7f3519f080ee3939263ef (patch) | |
| tree | 49a095083f83399fa032a7e3264a1509d79dc983 /kernel | |
| parent | relay: check return of create_buf_file() properly (diff) | |
| download | linux-dev-36991ca68db9dd43bac7f3519f080ee3939263ef.tar.xz linux-dev-36991ca68db9dd43bac7f3519f080ee3939263ef.zip | |
blk-mq: protect debugfs_create_files() from failures
If debugfs were to return a non-NULL error for a debugfs call, using
that pointer later in debugfs_create_files() would crash.
Fix that by properly checking the pointer before referencing it.
Reported-by: Michal Hocko <mhocko@kernel.org>
Reported-and-tested-by: syzbot+b382ba6a802a3d242790@syzkaller.appspotmail.com
Reported-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions