4.9-stable review patch. If anyone has any objections, please let me know.
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From: Dan Carpenter dan.carpenter@oracle.com
[ Upstream commit 7bd897cfce1eb373892d35d7f73201b0f9b221c4 ]
We don't set an error code on this path. It means that we return NULL instead of an error pointer and the caller does a NULL dereference.
Fixes: 6d1d8050b4bc ("block, partition: add partition_meta_info to hd_struct") Signed-off-by: Dan Carpenter dan.carpenter@oracle.com Signed-off-by: Jens Axboe axboe@fb.com Signed-off-by: Sasha Levin alexander.levin@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- block/partition-generic.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
--- a/block/partition-generic.c +++ b/block/partition-generic.c @@ -321,8 +321,10 @@ struct hd_struct *add_partition(struct g
if (info) { struct partition_meta_info *pinfo = alloc_part_info(disk); - if (!pinfo) + if (!pinfo) { + err = -ENOMEM; goto out_free_stats; + } memcpy(pinfo, info, sizeof(*info)); p->info = pinfo; }