From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matt Roper Subject: [PATCH] drm: Add integer overflow checking to transitional plane helpers Date: Fri, 3 Apr 2015 14:27:46 -0700 Message-ID: <1428096466-27622-1-git-send-email-matthew.d.roper@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" To: dri-devel@lists.freedesktop.org Cc: intel-gfx@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org QWRkIHRlc3RzIGZvciBkZXN0aW5hdGlvbiByZWN0YW5nbGUgaW50ZWdlciBvdmVyZmxvdyBiZWZv cmUgY2FsbGluZyB0aGUKZHJpdmVyJ3MgY2hlY2sgZnVuY3Rpb24uICBUaGlzIHdpbGwgZW5zdXJl IHRoYXQgdGhlIHRyYW5zaXRpb25hbCBwbGFuZQpoZWxwZXJzIG1hdGNoIHRoZSBiZWhhdmlvciBv ZiB0aGUgZnVsbCBhdG9taWMgaGVscGVycyBieSBhbHdheXMKcmV0dXJuaW5nIC1FUkFOR0UgZm9y IHBsYW5lcyBwb3NpdGlvbmVkIGJleW9uZCBJTlRfTUFYLgoKTm90ZSB0aGF0IHRoZSBsZWdhY3kg U2V0UGxhbmUgaW9jdGwgaXRzZWxmIGFsc28gaW5jbHVkZXMgc2ltaWxhciB0ZXN0cwpmb3IgaW50 ZWdlciBvdmVyZmxvdywgc28gdGhlIG9ubHkgY2FzZSB3aGVyZSB0aGlzIGNoZWNrIHJlYWxseSBt YXR0ZXJzCmlzIHdoZW4gbGVnYWN5IGN1cnNvciBvcGVyYXRpb25zIGdldCByb3V0ZWQgdGhyb3Vn aCB0aGUgdW5pdmVyc2FsIHBsYW5lCmludGVyZmFjZSBpbnRlcm5hbGx5LgoKVGhpcyBpc3N1ZSB3 YXMgZmlyc3Qgbm90aWNlZCB3aXRoIGk5MTUgY29tbWl0OgoKICAgICAgICBjb21taXQgZmY0MmUw OTNlOWM5YzE3YTZlMWQ2YWFiMjQ4NzVhMzY3OTVmOTI2ZQogICAgICAgIEF1dGhvcjogRGFuaWVs IFZldHRlciA8ZGFuaWVsLnZldHRlckBmZndsbC5jaD4KICAgICAgICBEYXRlOiAgIE1vbiBNYXIg MiAxNjozNToyMCAyMDE1ICswMTAwCgogICAgICAgICAgICBSZXZlcnQgImRybS9pOTE1OiBTd2l0 Y2ggcGxhbmVzIGZyb20gdHJhbnNpdGlvbmFsIGhlbHBlcnMgdG8gZnVsbAogICAgICAgICAgICBh dG9taWMgaGVscGVycyIKClRoZSBhYm92ZSByZXZlcnQgc3dpdGNoZWQgdXMgZnJvbSBmdWxsIGF0 b21pYyBoZWxwZXJzIGJhY2sgdG8gdGhlCnRyYW5zaXRpb25hbCBoZWxwZXJzLCBhbmQgaW4gZG9p bmcgc28gd2UgbG9zdCB0aGUgb3ZlcmZsb3cgY2hlY2tpbmcgaGVyZQpmb3IgdW5pdmVyc2FsIGN1 cnNvciB1cGRhdGVzLiAgRXZlbiB0aG91Z2ggc3VjaCBleHRyZW1lIGN1cnNvciBwb3NpdGlvbnMK YXJlIHVubGlrZWx5IHRvIGFjdHVhbGx5IGhhcHBlbiBpbiB0aGUgd2lsZCwgd2Ugc3RpbGwgZG9u J3Qgd2FudCB0aGVyZQp0byBiZSBhIGNoYW5nZSBvZiBiZWhhdmlvciB3aGVuIGRyaXZlcnMgc3dp dGNoIGZyb20gdHJhbnNpdGlvbmFsIGhlbHBlcnMKdG8gZnVsbCBoZWxwZXJzLgoKQnVnemlsbGE6 IGh0dHBzOi8vYnVncy5mcmVlZGVza3RvcC5vcmcvc2hvd19idWcuY2dpP2lkPTg0MjY5ClNpZ25l ZC1vZmYtYnk6IE1hdHQgUm9wZXIgPG1hdHRoZXcuZC5yb3BlckBpbnRlbC5jb20+Ci0tLQogZHJp dmVycy9ncHUvZHJtL2RybV9wbGFuZV9oZWxwZXIuYyB8IDE0ICsrKysrKysrKysrKysrCiAxIGZp bGUgY2hhbmdlZCwgMTQgaW5zZXJ0aW9ucygrKQoKZGlmZiAtLWdpdCBhL2RyaXZlcnMvZ3B1L2Ry bS9kcm1fcGxhbmVfaGVscGVyLmMgYi9kcml2ZXJzL2dwdS9kcm0vZHJtX3BsYW5lX2hlbHBlci5j CmluZGV4IDMzODA3ZTAuLjFlOWUxMDUgMTAwNjQ0Ci0tLSBhL2RyaXZlcnMvZ3B1L2RybS9kcm1f cGxhbmVfaGVscGVyLmMKKysrIGIvZHJpdmVycy9ncHUvZHJtL2RybV9wbGFuZV9oZWxwZXIuYwpA QCAtNDE3LDYgKzQxNywyMCBAQCBpbnQgZHJtX3BsYW5lX2hlbHBlcl9jb21taXQoc3RydWN0IGRy bV9wbGFuZSAqcGxhbmUsCiAJZm9yIChpID0gMDsgaSA8IDI7IGkrKykKIAkJY3J0Y19mdW5jc1tp XSA9IGNydGNbaV0gPyBjcnRjW2ldLT5oZWxwZXJfcHJpdmF0ZSA6IE5VTEw7CiAKKwkvKgorCSAq IEdpdmUgZHJpdmVycyBzb21lIGhlbHAgYWdhaW5zdCBpbnRlZ2VyIG92ZXJmbG93cyAoYW5kIG1h dGNoIHRoZQorCSAqIGJlaGF2aW9yIG9mIHRoZSBmdWxsIGF0b21pYyBoZWxwZXJzKS4KKwkgKi8K KwlpZiAocGxhbmVfc3RhdGUtPmNydGNfdyA+IElOVF9NQVggfHwKKwkgICAgcGxhbmVfc3RhdGUt PmNydGNfeCA+IElOVF9NQVggLSAoaW50MzJfdCkgcGxhbmVfc3RhdGUtPmNydGNfdyB8fAorCSAg ICBwbGFuZV9zdGF0ZS0+Y3J0Y19oID4gSU5UX01BWCB8fAorCSAgICBwbGFuZV9zdGF0ZS0+Y3J0 Y195ID4gSU5UX01BWCAtIChpbnQzMl90KSBwbGFuZV9zdGF0ZS0+Y3J0Y19oKSB7CisJCURSTV9E RUJVR19BVE9NSUMoIkludmFsaWQgQ1JUQyBjb29yZGluYXRlcyAldXgldSslZCslZFxuIiwKKwkJ CQkgcGxhbmVfc3RhdGUtPmNydGNfdywgcGxhbmVfc3RhdGUtPmNydGNfaCwKKwkJCQkgcGxhbmVf c3RhdGUtPmNydGNfeCwgcGxhbmVfc3RhdGUtPmNydGNfeSk7CisJCXJldHVybiAtRVJBTkdFOwor CX0KKwogCWlmIChwbGFuZV9mdW5jcy0+YXRvbWljX2NoZWNrKSB7CiAJCXJldCA9IHBsYW5lX2Z1 bmNzLT5hdG9taWNfY2hlY2socGxhbmUsIHBsYW5lX3N0YXRlKTsKIAkJaWYgKHJldCkKLS0gCjEu OC41LjEKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCklu dGVsLWdmeCBtYWlsaW5nIGxpc3QKSW50ZWwtZ2Z4QGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpodHRw Oi8vbGlzdHMuZnJlZWRlc2t0b3Aub3JnL21haWxtYW4vbGlzdGluZm8vaW50ZWwtZ2Z4Cg==