From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Subject: EDAC, thunderx: Remove VLA usage From: Kees Cook Message-Id: <20180629184850.GA37464@beast> Date: Fri, 29 Jun 2018 11:48:50 -0700 To: David Daney Cc: Jan Glauber , Borislav Petkov , Mauro Carvalho Chehab , linux-edac@vger.kernel.org, linux-kernel@vger.kernel.org List-ID: SW4gdGhlIHF1ZXN0IHRvIHJlbW92ZSBhbGwgc3RhY2sgVkxBIHVzYWdlIGZyb20gdGhlIGtlcm5l bFsxXSwgdGhpcwpzd2l0Y2hlcyB0byB1c2luZyBhIGttYWxsb2MtYWxsb2NhdGVkIGJ1ZmZlciBp bnN0ZWFkIG9mIHN0YWNrIHNwYWNlLgpUaGlzIHNob3VsZCBiZSBmaW5lIHNpbmNlIHRoZSBleGlz dGluZyByb3V0aW5lIGlzIGFsbG9jYXRpbmcgbWVtb3J5CnRvby4KClsxXSBodHRwczovL2xrbWwu a2VybmVsLm9yZy9yL0NBKzU1YUZ6Q0ctek5tWndYNEEyRlFwYWRhZkxmRXpLNkNDPXFQWHlkQWFj VTFScVpXQUBtYWlsLmdtYWlsLmNvbQoKQ2M6IERhdmlkIERhbmV5IDxkYXZpZC5kYW5leUBjYXZp dW0uY29tPgpDYzogSmFuIEdsYXViZXIgPGpnbGF1YmVyQGNhdml1bS5jb20+CkNjOiBCb3Jpc2xh diBQZXRrb3YgPGJwQGFsaWVuOC5kZT4KQ2M6IE1hdXJvIENhcnZhbGhvIENoZWhhYiA8bWNoZWhh YkBrZXJuZWwub3JnPgpDYzogbGludXgtZWRhY0B2Z2VyLmtlcm5lbC5vcmcKU2lnbmVkLW9mZi1i eTogS2VlcyBDb29rIDxrZWVzY29va0BjaHJvbWl1bS5vcmc+Ci0tLQogZHJpdmVycy9lZGFjL3Ro dW5kZXJ4X2VkYWMuYyB8IDE0ICsrKysrKysrKy0tLS0tCiAxIGZpbGUgY2hhbmdlZCwgOSBpbnNl cnRpb25zKCspLCA1IGRlbGV0aW9ucygtKQoKZGlmZiAtLWdpdCBhL2RyaXZlcnMvZWRhYy90aHVu ZGVyeF9lZGFjLmMgYi9kcml2ZXJzL2VkYWMvdGh1bmRlcnhfZWRhYy5jCmluZGV4IDQ4MDNjNjQ2 OGJhYi4uYzAwOWQ5NGY0MGM1IDEwMDY0NAotLS0gYS9kcml2ZXJzL2VkYWMvdGh1bmRlcnhfZWRh Yy5jCisrKyBiL2RyaXZlcnMvZWRhYy90aHVuZGVyeF9lZGFjLmMKQEAgLTQwOCwyNiArNDA4LDI5 IEBAIHN0YXRpYyBzc2l6ZV90IHRodW5kZXJ4X2xtY19pbmplY3RfZWNjX3dyaXRlKHN0cnVjdCBm aWxlICpmaWxlLAogCQkJCQkgICAgIHNpemVfdCBjb3VudCwgbG9mZl90ICpwcG9zKQogewogCXN0 cnVjdCB0aHVuZGVyeF9sbWMgKmxtYyA9IGZpbGUtPnByaXZhdGVfZGF0YTsKLQogCXVuc2lnbmVk IGludCBjbGluZV9zaXplID0gY2FjaGVfbGluZV9zaXplKCk7Ci0KLQl1OCB0bXBbY2xpbmVfc2l6 ZV07CisJdTggKnRtcDsKIAl2b2lkIF9faW9tZW0gKmFkZHI7CiAJdW5zaWduZWQgaW50IG9mZnMs IHRpbWVvdXQgPSAxMDAwMDA7CiAKIAlhdG9taWNfc2V0KCZsbWMtPmVjY19pbnQsIDApOwogCiAJ bG1jLT5tZW0gPSBhbGxvY19wYWdlc19ub2RlKGxtYy0+bm9kZSwgR0ZQX0tFUk5FTCwgMCk7Ci0K IAlpZiAoIWxtYy0+bWVtKQogCQlyZXR1cm4gLUVOT01FTTsKIAorCXRtcCA9IGttYWxsb2MoY2xp bmVfc2l6ZSwgR0ZQX0tFUk5FTCk7CisJaWYgKCF0bXApIHsKKwkJX19mcmVlX3BhZ2VzKGxtYy0+ bWVtLCAwKTsKKwkJcmV0dXJuIC1FTk9NRU07CisJfQorCiAJYWRkciA9IHBhZ2VfYWRkcmVzcyhs bWMtPm1lbSk7CiAKIAl3aGlsZSAoIWF0b21pY19yZWFkKCZsbWMtPmVjY19pbnQpICYmIHRpbWVv dXQtLSkgewogCQlzdG9wX21hY2hpbmUoaW5qZWN0X2VjY19mbiwgbG1jLCBOVUxMKTsKIAotCQlm b3IgKG9mZnMgPSAwOyBvZmZzIDwgUEFHRV9TSVpFOyBvZmZzICs9IHNpemVvZih0bXApKSB7CisJ CWZvciAob2ZmcyA9IDA7IG9mZnMgPCBQQUdFX1NJWkU7IG9mZnMgKz0gY2xpbmVfc2l6ZSkgewog CQkJLyoKIAkJCSAqIERvIGEgbG9hZCBmcm9tIHRoZSBwcmV2aW91c2x5IHJpZ2dlZCBsb2NhdGlv bgogCQkJICogVGhpcyBzaG91bGQgZ2VuZXJhdGUgYW4gZXJyb3IgaW50ZXJydXB0LgpAQCAtNDM3 LDYgKzQ0MCw3IEBAIHN0YXRpYyBzc2l6ZV90IHRodW5kZXJ4X2xtY19pbmplY3RfZWNjX3dyaXRl KHN0cnVjdCBmaWxlICpmaWxlLAogCQl9CiAJfQogCisJa2ZyZWUodG1wKTsKIAlfX2ZyZWVfcGFn ZXMobG1jLT5tZW0sIDApOwogCiAJcmV0dXJuIGNvdW50Owo=