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[ Upstream commit 2803cf4379ed252894f046cb8812a48db35294e3 ] v9fs_dir_readdir() could deadloop if a struct was sent with a size set to -2 Link: http://lkml.kernel.org/r/1536134432-11997-1-git-send-email-asmadeus@codewreck.org Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=88021 Signed-off-by: Gertjan Halkes <gertjan@google.com> Signed-off-by: Dominique Martinet <dominique.martinet@cea.fr> Signed-off-by: Sasha Levin <sashal@kernel.org>