NFS: null dereference in dev_remove()
In commit 5ffaf85541
"NFS: replace global bl_wq with per-net one" we
made "msg" a pointer instead of a struct stored in stack memory. But we
forgot to change the memset() here so we're still clearing stack memory
instead clearing the struct like we intended. It will lead to a kernel
crash.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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parent
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commit
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1 changed files with 1 additions and 1 deletions
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@ -54,7 +54,7 @@ static void dev_remove(struct net *net, dev_t dev)
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dprintk("Entering %s\n", __func__);
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bl_pipe_msg.bl_wq = &nn->bl_wq;
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memset(&msg, 0, sizeof(*msg));
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memset(msg, 0, sizeof(*msg));
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msg->data = kzalloc(1 + sizeof(bl_umount_request), GFP_NOFS);
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if (!msg->data)
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goto out;
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