diff options
| author | Christoph Hellwig <hch@lst.de> | 2017-01-24 16:50:19 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2017-01-24 17:55:53 +0300 |
| commit | 690e5325b8c7d5db05fc569c0f7b888bb4248272 (patch) | |
| tree | b9c39916a4397b1eb628e07e4fc6aff91219e393 /security | |
| parent | a4685d2f58e2230d4e27fb2ee581d7ea35e5d046 (diff) | |
| download | linux-690e5325b8c7d5db05fc569c0f7b888bb4248272.tar.xz | |
block: fix use after free in __blkdev_direct_IO
We can't dereference the dio structure after submitting the last bio for
this request, as I/O completion might have happened before the code is
run. Introduce a local is_sync variable instead.
Fixes: 542ff7bf ("block: new direct I/O implementation")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Matias Bjørling <m@bjorling.me>
Tested-by: Matias Bjørling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'security')
0 files changed, 0 insertions, 0 deletions