RDMA/restrack: Increment CQ restrack object before committing

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Once the uobj is committed it is immediately possible another thread
could destroy it, which worst case, can result in a use-after-free
of the restrack objects.

Cc: syzkaller <syzkaller@googlegroups.com>
Fixes: 08f294a152 ("RDMA/core: Add resource tracking for create and destroy CQs")
Reported-by: Noa Osherovich <noaos@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

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Leon Romanovsky 2018-02-14 12:35:37 +02:00 • committed by Jason Gunthorpe

parent 3f802b162d

commit 0cba0efcc7

1 changed files with 3 additions and 3 deletions

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6

drivers/infiniband/core/uverbs_cmd.c

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