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| author | Mohamed Ghannam <simo.ghannam@gmail.com> | 2018-01-04 00:06:06 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-01-17 11:29:30 +0300 |
| commit | 3396f2bef5ede06f73c0be43975ce837767785ed (patch) | |
| tree | c175130f7d94bea2a26b61440cdf7af2ad8f7fcc /net/rds | |
| parent | a7b25c9f6ea92d582bda195eca561b9cb605ea91 (diff) | |
| download | linux-3396f2bef5ede06f73c0be43975ce837767785ed.tar.xz | |
RDS: null pointer dereference in rds_atomic_free_op
[ Upstream commit 7d11f77f84b27cef452cee332f4e469503084737 ]
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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/rds')
| -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 3e6b133c5e96..b1ec96bca937 100644 --- a/net/rds/rdma.c +++ b/net/rds/rdma.c @@ -866,6 +866,7 @@ 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; |