diff options
| author | Mohamed Ghannam <simo.ghannam@gmail.com> | 2018-01-03 21:06:06 +0000 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2018-02-13 18:42:31 +0000 |
| commit | c8b61a6ecfb90c7fb4f824df2448b923954de170 (patch) | |
| tree | 3394f1310ae38e41ab10af6a7508ca89709f9ed8 /net | |
| parent | a64a21f6de4faf41b74800275be0552f55e83699 (diff) | |
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>
Diffstat (limited to 'net')
| -rw-r--r-- | net/rds/rdma.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/rds/rdma.c b/net/rds/rdma.c index 6bb8a4ca3b7a..6fcd65a923ea 100644 --- a/net/rds/rdma.c +++ b/net/rds/rdma.c @@ -855,6 +855,7 @@ 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; |