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| author | Shlomo Pongratz <shlomop@mellanox.com> | 2012-08-13 14:39:50 +0000 |
|---|---|---|
| committer | Roland Dreier <roland@purestorage.com> | 2012-08-14 15:21:44 -0700 |
| commit | 6c723a68c661008adf415ee90efe5f737e928ce0 (patch) | |
| tree | bc525e4ced2a854c0f774c4adf56ada985cbe746 | |
| parent | fa16ebed31f336e41970f3f0ea9e8279f6be2d27 (diff) | |
| download | op-kernel-dev-6c723a68c661008adf415ee90efe5f737e928ce0.zip op-kernel-dev-6c723a68c661008adf415ee90efe5f737e928ce0.tar.gz | |
IB/ipoib: Fix RCU pointer dereference of wrong object
Commit b63b70d87741 ("IPoIB: Use a private hash table for path lookup
in xmit path") introduced a bug where in ipoib_neigh_free() (which is
called from a few errors flows in the driver), rcu_dereference() is
invoked with the wrong pointer object, which results in a crash.
Signed-off-by: Shlomo Pongratz <shlomop@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
| -rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_main.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index 97920b7..3e2085a 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -1052,7 +1052,7 @@ void ipoib_neigh_free(struct ipoib_neigh *neigh) for (n = rcu_dereference_protected(*np, lockdep_is_held(&ntbl->rwlock)); n != NULL; - n = rcu_dereference_protected(neigh->hnext, + n = rcu_dereference_protected(*np, lockdep_is_held(&ntbl->rwlock))) { if (n == neigh) { /* found */ |
