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Commit 1c755e1f authored by Al Viro's avatar Al Viro Committed by Greg Kroah-Hartman
Browse files

p9_client_readdir() fix 



commit 71d6ad08379304128e4bdfaf0b4185d54375423e upstream.

Don't assume that server is sane and won't return more data than
asked for.

Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 91f5719c

net/9p/client.c

+4 −0
Original line number Diff line number Diff line
@@ -2106,6 +2106,10 @@ int p9_client_readdir(struct p9_fid *fid, char *data, u32 count, u64 offset) 
		trace_9p_protocol_dump(clnt, req->rc);

		goto free_and_error;

	}

	if (rsize < count) {

		pr_err("bogus RREADDIR count (%d > %d)\n", count, rsize);

		count = rsize;

	}



	p9_debug(P9_DEBUG_9P, "<<< RREADDIR count %d\n", count);