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: [v3,2/2] nfit, mce: validate the mce->addr before using it From: Vishal Verma Message-Id: <20181026003729.8420-2-vishal.l.verma@intel.com> Date: Thu, 25 Oct 2018 18:37:29 -0600 To: linux-nvdimm@lists.01.org Cc: linux-edac@vger.kernel.org, elliott@hpe.com, Vishal Verma , stable@vger.kernel.org, Dan Williams , Tony Luck , Borislav Petkov List-ID: VGhlIE5GSVQgbWFjaGluZSBjaGVjayBoYW5kbGVyIHVzZXMgdGhlIHBoeXNpY2FsIGFkZHJlc3Mg ZnJvbSB0aGUgJ21jZScKc3RydWN0dXJlLCBhbmQgY29tcGFyZXMgaXQgYWdhaW5zdCBpbmZvcm1h dGlvbiBpbiB0aGUgQUNQSSBORklUIHRhYmxlIHRvCmRldGVybWluZSB3aGV0aGVyIHRoYXQgbG9j YXRpb24gbGllcyBvbiBhbiBOVkRJTU0uIFRoZSBtY2UtPmFkZHIgZmllbGQKaG93ZXZlciBtYXkg bm90IGFsd2F5cyBiZSB2YWxpZCwgYW5kIHRoaXMgaXMgaW5kaWNhdGVkIGJ5IHRoZQpNQ0lfU1RB VFVTX0FERFJWIGJpdCBpbiB0aGUgc3RhdHVzIGZpZWxkLgoKRXhwb3J0IG1jZV91c2FibGVfYWRk cmVzcygpIHdoaWNoIGFscmVhZHkgcGVyZm9ybXMgdmFsaWRhdGlvbiBmb3IgdGhlCmFkZHJlc3Ms IGFuZCB1c2UgaXQgaW4gdGhlIE5GSVQgaGFuZGxlci4KClJlcG9ydGVkLWJ5OiBSb2JlcnQgRWxs aW90dCA8ZWxsaW90dEBocGUuY29tPgpGaXhlczogNjgzOWE2ZDk2ZjRlICgibmZpdDogZG8gYW4g QVJTIHNjcnViIG9uIGhpdHRpbmcgYSBsYXRlbnQgbWVkaWEgZXJyb3IiKQpDYzogc3RhYmxlQHZn ZXIua2VybmVsLm9yZwpDYzogRGFuIFdpbGxpYW1zIDxkYW4uai53aWxsaWFtc0BpbnRlbC5jb20+ CkNjOiBUb255IEx1Y2sgPHRvbnkubHVja0BpbnRlbC5jb20+CkNjOiBCb3Jpc2xhdiBQZXRrb3Yg PGJwQGFsaWVuOC5kZT4KU2lnbmVkLW9mZi1ieTogVmlzaGFsIFZlcm1hIDx2aXNoYWwubC52ZXJt YUBpbnRlbC5jb20+Ci0tLQogYXJjaC94ODYvaW5jbHVkZS9hc20vbWNlLmggICAgICAgfCAxICsK IGFyY2gveDg2L2tlcm5lbC9jcHUvbWNoZWNrL21jZS5jIHwgMyArKy0KIGRyaXZlcnMvYWNwaS9u Zml0L21jZS5jICAgICAgICAgIHwgNCArKysrCiAzIGZpbGVzIGNoYW5nZWQsIDcgaW5zZXJ0aW9u cygrKSwgMSBkZWxldGlvbigtKQoKdjM6IEFkZCB0aGlzIHBhdGNoIHRvIGFkZHJlc3MgdGhlIGFk ZHJlc3MgdmFsaWRhdGlvbiAoUm9iZXJ0KQoKZGlmZiAtLWdpdCBhL2FyY2gveDg2L2luY2x1ZGUv YXNtL21jZS5oIGIvYXJjaC94ODYvaW5jbHVkZS9hc20vbWNlLmgKaW5kZXggMzExMWIzY2VlMmVl Li5lYjc4NmY5MGYyZDMgMTAwNjQ0Ci0tLSBhL2FyY2gveDg2L2luY2x1ZGUvYXNtL21jZS5oCisr KyBiL2FyY2gveDg2L2luY2x1ZGUvYXNtL21jZS5oCkBAIC0yMTcsNiArMjE3LDcgQEAgc3RhdGlj IGlubGluZSBpbnQgdW1jX25vcm1hZGRyX3RvX3N5c2FkZHIodTY0IG5vcm1fYWRkciwgdTE2IG5p ZCwgdTggdW1jLCB1NjQgKnMKIGludCBtY2VfYXZhaWxhYmxlKHN0cnVjdCBjcHVpbmZvX3g4NiAq Yyk7CiBib29sIG1jZV9pc19tZW1vcnlfZXJyb3Ioc3RydWN0IG1jZSAqbSk7CiBib29sIG1jZV9p c19jb3JyZWN0YWJsZShzdHJ1Y3QgbWNlICptKTsKK2ludCBtY2VfdXNhYmxlX2FkZHJlc3Moc3Ry dWN0IG1jZSAqbSk7CiAKIERFQ0xBUkVfUEVSX0NQVSh1bnNpZ25lZCwgbWNlX2V4Y2VwdGlvbl9j b3VudCk7CiBERUNMQVJFX1BFUl9DUFUodW5zaWduZWQsIG1jZV9wb2xsX2NvdW50KTsKZGlmZiAt LWdpdCBhL2FyY2gveDg2L2tlcm5lbC9jcHUvbWNoZWNrL21jZS5jIGIvYXJjaC94ODYva2VybmVs L2NwdS9tY2hlY2svbWNlLmMKaW5kZXggMjcwMTU5NDhiYzQxLi5jZGJlZGViM2YzZGIgMTAwNjQ0 Ci0tLSBhL2FyY2gveDg2L2tlcm5lbC9jcHUvbWNoZWNrL21jZS5jCisrKyBiL2FyY2gveDg2L2tl cm5lbC9jcHUvbWNoZWNrL21jZS5jCkBAIC00ODUsNyArNDg1LDcgQEAgc3RhdGljIHZvaWQgbWNl X3JlcG9ydF9ldmVudChzdHJ1Y3QgcHRfcmVncyAqcmVncykKICAqIGJlIHNvbWV3aGF0IGNvbXBs aWNhdGVkIChlLmcuIHNlZ21lbnQgb2Zmc2V0IHdvdWxkIHJlcXVpcmUgYW4gaW5zdHJ1Y3Rpb24K ICAqIHBhcnNlcikuIFNvIG9ubHkgc3VwcG9ydCBwaHlzaWNhbCBhZGRyZXNzZXMgdXAgdG8gcGFn ZSBncmFudWFsaXR5IGZvciBub3cuCiAgKi8KLXN0YXRpYyBpbnQgbWNlX3VzYWJsZV9hZGRyZXNz KHN0cnVjdCBtY2UgKm0pCitpbnQgbWNlX3VzYWJsZV9hZGRyZXNzKHN0cnVjdCBtY2UgKm0pCiB7 CiAJaWYgKCEobS0+c3RhdHVzICYgTUNJX1NUQVRVU19BRERSVikpCiAJCXJldHVybiAwOwpAQCAt NTA1LDYgKzUwNSw3IEBAIHN0YXRpYyBpbnQgbWNlX3VzYWJsZV9hZGRyZXNzKHN0cnVjdCBtY2Ug Km0pCiAKIAlyZXR1cm4gMTsKIH0KK0VYUE9SVF9TWU1CT0xfR1BMKG1jZV91c2FibGVfYWRkcmVz cyk7CiAKIGJvb2wgbWNlX2lzX21lbW9yeV9lcnJvcihzdHJ1Y3QgbWNlICptKQogewpkaWZmIC0t Z2l0IGEvZHJpdmVycy9hY3BpL25maXQvbWNlLmMgYi9kcml2ZXJzL2FjcGkvbmZpdC9tY2UuYwpp bmRleCA3YTUxNzA3Zjg3ZTkuLmQ5NDNlZDUwZjBiNCAxMDA2NDQKLS0tIGEvZHJpdmVycy9hY3Bp L25maXQvbWNlLmMKKysrIGIvZHJpdmVycy9hY3BpL25maXQvbWNlLmMKQEAgLTI5LDYgKzI5LDEw IEBAIHN0YXRpYyBpbnQgbmZpdF9oYW5kbGVfbWNlKHN0cnVjdCBub3RpZmllcl9ibG9jayAqbmIs IHVuc2lnbmVkIGxvbmcgdmFsLAogCWlmICghbWNlX2lzX21lbW9yeV9lcnJvcihtY2UpIHx8IG1j ZV9pc19jb3JyZWN0YWJsZShtY2UpKQogCQlyZXR1cm4gTk9USUZZX0RPTkU7CiAKKwkvKiBWZXJp ZnkgdGhlIGFkZHJlc3MgcmVwb3J0ZWQgaW4gdGhlIG1jZSBpcyB2YWxpZCAqLworCWlmICghbWNl X3VzYWJsZV9hZGRyZXNzKG1jZSkpCisJCXJldHVybiBOT1RJRllfRE9ORTsKKwogCS8qCiAJICog bWNlLT5hZGRyIGNvbnRhaW5zIHRoZSBwaHlzaWNhbCBhZGRyIGFjY2Vzc2VkIHRoYXQgY2F1c2Vk IHRoZQogCSAqIG1hY2hpbmUgY2hlY2suIFdlIG5lZWQgdG8gd2FsayB0aHJvdWdoIHRoZSBsaXN0 IG9mIE5GSVRzLCBhbmQgc2VlCg==