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authorPaul Moore <paul.moore@hp.com>2007-08-07 17:53:10 -0700
committerDavid S. Miller <davem@davemloft.net>2007-08-07 17:53:10 -0700
commit3482fd9099e8aab8b8096eb6da93571ea5a0b4c2 (patch)
tree6ea34d94e11d42738fbac12c0934ed973a990908 /net/netlabel
parent4a2a4df7b6db25df8f3d5cc6dd0b096119359d92 (diff)
downloadlinux-linaro-3482fd9099e8aab8b8096eb6da93571ea5a0b4c2.tar.gz
[NetLabel]: add missing rcu_dereference() calls in the LSM domain mapping hash table
The LSM domain mapping head table pointer was not being referenced via the RCU safe dereferencing function, rcu_dereference(). This patch adds those missing calls to the NetLabel code. This has been tested using recent linux-2.6 git kernels with no visible regressions. Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/netlabel')
-rw-r--r--net/netlabel/netlabel_domainhash.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/net/netlabel/netlabel_domainhash.c b/net/netlabel/netlabel_domainhash.c
index f46a0aeec44..b6c844b7e1c 100644
--- a/net/netlabel/netlabel_domainhash.c
+++ b/net/netlabel/netlabel_domainhash.c
@@ -126,7 +126,9 @@ static struct netlbl_dom_map *netlbl_domhsh_search(const char *domain, u32 def)
if (domain != NULL) {
bkt = netlbl_domhsh_hash(domain);
- list_for_each_entry_rcu(iter, &netlbl_domhsh->tbl[bkt], list)
+ list_for_each_entry_rcu(iter,
+ &rcu_dereference(netlbl_domhsh)->tbl[bkt],
+ list)
if (iter->valid && strcmp(iter->domain, domain) == 0)
return iter;
}
@@ -227,7 +229,7 @@ int netlbl_domhsh_add(struct netlbl_dom_map *entry,
spin_lock(&netlbl_domhsh_lock);
if (netlbl_domhsh_search(entry->domain, 0) == NULL)
list_add_tail_rcu(&entry->list,
- &netlbl_domhsh->tbl[bkt]);
+ &rcu_dereference(netlbl_domhsh)->tbl[bkt]);
else
ret_val = -EEXIST;
spin_unlock(&netlbl_domhsh_lock);
@@ -423,8 +425,8 @@ int netlbl_domhsh_walk(u32 *skip_bkt,
iter_bkt < rcu_dereference(netlbl_domhsh)->size;
iter_bkt++, chain_cnt = 0) {
list_for_each_entry_rcu(iter_entry,
- &netlbl_domhsh->tbl[iter_bkt],
- list)
+ &rcu_dereference(netlbl_domhsh)->tbl[iter_bkt],
+ list)
if (iter_entry->valid) {
if (chain_cnt++ < *skip_chain)
continue;