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| author |   Ming Lei <ming.lei@canonical.com> | 2016-03-30 08:46:31 +0800 |
|---|---|---|
| committer |   Jens Axboe <axboe@fb.com> | 2016-03-29 19:18:14 -0600 |
| commit | b30a337ca27c4f40439e4bfb290cba5f88d73bb7 (patch) | |
| tree | 07da263067ec36686177990a48000beb0ceb2eae /mm/backing-dev.c | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide (diff) | |
| download | linux-dev-b30a337ca27c4f40439e4bfb290cba5f88d73bb7.tar.xz linux-dev-b30a337ca27c4f40439e4bfb290cba5f88d73bb7.zip | |
block: partition: initialize percpuref before sending out KOBJ_ADD
The initialization of partition's percpu_ref should have been done before
sending out KOBJ_ADD uevent, which may cause userspace to read partition
table. So the uninitialized percpu_ref may be accessed in data path.
This patch fixes this issue reported by Naveen.
Reported-by: Naveen Kaje <nkaje@codeaurora.org>
Tested-by: Naveen Kaje <nkaje@codeaurora.org>
Fixes: 6c71013ecb7e2(block: partition: convert percpu ref)
Cc: <stable@vger.kernel.org> # v4.3+
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions