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| author | Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> | 2018-05-26 03:59:36 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-07-17 12:37:54 +0300 |
| commit | 34f841a3c3db03dd7de1157c3b1bda07b50d3259 (patch) | |
| tree | f980eef5600d89d7080ae3dfc2486f356085be20 /drivers/infiniband | |
| parent | e3cf1cc9ed9230560e61306e13c88eccb5189c1b (diff) | |
| download | linux-34f841a3c3db03dd7de1157c3b1bda07b50d3259.tar.xz | |
PM / hibernate: Fix oops at snapshot_write()
commit fc14eebfc20854a38fd9f1d93a42b1783dad4d17 upstream.
syzbot is reporting NULL pointer dereference at snapshot_write() [1].
This is because data->handle is zero-cleared by ioctl(SNAPSHOT_FREE).
Fix this by checking data_of(data->handle) != NULL before using it.
[1] https://syzkaller.appspot.com/bug?id=828a3c71bd344a6de8b6a31233d51a72099f27fd
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Reported-by: syzbot <syzbot+ae590932da6e45d6564d@syzkaller.appspotmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/infiniband')
0 files changed, 0 insertions, 0 deletions