RDS: null pointer dereference in rds_atomic_free_op
authorMohamed Ghannam <simo.ghannam@gmail.com>
Wed, 3 Jan 2018 21:06:06 +0000 (21:06 +0000)
committerBen Hutchings <ben@decadent.org.uk>
Tue, 13 Feb 2018 18:32:22 +0000 (18:32 +0000)
commit57e49cc5d8048f4274b3b2c8ec075f656f8a3ed1
treeab299a77af9f66d90501d695433be0a658eeedf2
parent60daca9efbb3e4109ebc1f7069543e5573fc124e
RDS: null pointer dereference in rds_atomic_free_op

commit 7d11f77f84b27cef452cee332f4e469503084737 upstream.

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>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
net/rds/rdma.c