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authorMohamed Ghannam <simo.ghannam@gmail.com>2018-01-03 21:06:06 +0000
committerDavid S. Miller <davem@davemloft.net>2018-01-04 14:19:26 -0500
commit7d11f77f84b27cef452cee332f4e469503084737 (patch)
treeac0c45274f5eaff4dfae1056843f59e585eee78b /net/rds/rdma.c
parentdfe8266b8dd10e12a731c985b725fcf7f0e537f0 (diff)
RDS: null pointer dereference in rds_atomic_free_op
set rm->atomic.op_active to 0 when rds_pin_pages() fails or the user supplied address is invalid, this prevents a NULL pointer usage in rds_atomic_free_op() Signed-off-by: Mohamed Ghannam <simo.ghannam@gmail.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/rds/rdma.c')
-rw-r--r--net/rds/rdma.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/rds/rdma.c b/net/rds/rdma.c
index 94729d9da437..634cfcb7bba6 100644
--- a/net/rds/rdma.c
+++ b/net/rds/rdma.c
@@ -877,6 +877,7 @@ int rds_cmsg_atomic(struct rds_sock *rs, struct rds_message *rm,
err:
if (page)
put_page(page);
+ rm->atomic.op_active = 0;
kfree(rm->atomic.op_notifier);
return ret;