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Richard Weinberger authored
commit 6a45b362 upstream. The function uses the memory address of a struct dentry as unique id. While the address-based directory entry is only visible to root it is IMHO still worth fixing since the temporary name does not have to be a kernel address. It can be any unique number. Replace it by an atomic integer which is allowed to wrap around. Signed-off-by:
Richard Weinberger <richard@nod.at> Reviewed-by:
Kees Cook <keescook@chromium.org> Signed-off-by:
Miklos Szeredi <mszeredi@redhat.com> Fixes: e9be9d5e ("overlay filesystem") Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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