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| author | Roland Dreier <rolandd@cisco.com> | 2007-10-19 20:01:43 -0700 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2007-10-19 20:01:43 -0700 |
| commit | cbfb50e6e2e9c580848c0f51d37c24cdfb1cb704 (patch) | |
| tree | ec7f484e83f348957a6cffa40a2c45821722612a /drivers/infiniband/ulp/ipoib/ipoib_cm.c | |
| parent | 839041329fd3410e07d614f81e75bb43367d8f89 (diff) | |
| download | blackbird-op-linux-cbfb50e6e2e9c580848c0f51d37c24cdfb1cb704.tar.gz blackbird-op-linux-cbfb50e6e2e9c580848c0f51d37c24cdfb1cb704.zip | |
IB/uverbs: Fix checking of userspace object ownership
Commit 9ead190b ("IB/uverbs: Don't serialize with ib_uverbs_idr_mutex")
rewrote how userspace objects are looked up in the uverbs module's
idrs, and introduced a severe bug in the process: there is no checking
that an operation is being performed by the right process any more.
Fix this by adding the missing check of uobj->context in __idr_get_uobj().
Apparently everyone is being very careful to only touch their own
objects, because this bug was introduced in June 2006 in 2.6.18, and
has gone undetected until now.
Cc: stable <stable@kernel.org>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/ulp/ipoib/ipoib_cm.c')
0 files changed, 0 insertions, 0 deletions
