NET: Fix sock_attach_fd() failure in sys_accept()
[NET]: Correct accept(2) recovery after sock_attach_fd() * d_alloc() in sock_attach_fd() fails leaving ->f_dentry of new file NULL * bail out to out_fd label, doing fput()/__fput() on new file * but __fput() assumes valid ->f_dentry and dereferences it Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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