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: [v2] USB: hso: Fix OOB memory access in hso_probe/hso_get_config_data From: Greg Kroah-Hartman Message-Id: <20181210080443.GA27035@kroah.com> Date: Mon, 10 Dec 2018 09:04:43 +0100 To: "David S. Miller" , netdev@vger.kernel.org Cc: linux-usb@vger.kernel.org, Sebastian Andrzej Siewior , Hui Peng , Mathias Payer List-ID: RnJvbTogSHVpIFBlbmcgPGJlbnF1aWtlQGdtYWlsLmNvbT4KClRoZSBmdW5jdGlvbiBoc29fcHJv YmUgcmVhZHMgaWZfbnVtIGZyb20gdGhlIFVTQiBkZXZpY2UgKGFzIGFuIHU4KSBhbmQgdXNlcwpp dCB3aXRob3V0IGEgbGVuZ3RoIGNoZWNrIHRvIGluZGV4IGFuIGFycmF5LCByZXN1bHRpbmcgaW4g YW4gT09CIG1lbW9yeSByZWFkCmluIGhzb19wcm9iZSBvciBoc29fZ2V0X2NvbmZpZ19kYXRhLiBB ZGRlZCBhIGxlbmd0aCBjaGVjayBmb3IgYm90aCBsb2NhdGlvbnMKYW5kIHVwZGF0ZWQgaHNvX3By b2JlIHRvIGJhaWwgb24gZXJyb3IuCgpUaGlzIGlzc3VlIGhhcyBiZWVuIGFzc2lnbmVkIENWRS0y MDE4LTE5OTg1LgoKUmVwb3J0ZWQtYnk6IEh1aSBQZW5nIDxiZW5xdWlrZUBnbWFpbC5jb20+ClJl cG9ydGVkLWJ5OiBNYXRoaWFzIFBheWVyIDxtYXRoaWFzLnBheWVyQG5lYmVsd2VsdC5uZXQ+ClNp Z25lZC1vZmYtYnk6IEh1aSBQZW5nIDxiZW5xdWlrZUBnbWFpbC5jb20+ClNpZ25lZC1vZmYtYnk6 IE1hdGhpYXMgUGF5ZXIgPG1hdGhpYXMucGF5ZXJAbmViZWx3ZWx0Lm5ldD4KU2lnbmVkLW9mZi1i eTogR3JlZyBLcm9haC1IYXJ0bWFuIDxncmVna2hAbGludXhmb3VuZGF0aW9uLm9yZz4KLS0tCnYy OiBmaXhlZCBlcnJvciBjaGVjayB0byBqdXN0IGJlIDwgMAogICAgQWRkZWQgQ1ZFIHRvIGNoYW5n ZWxvZyB0ZXh0CgogZHJpdmVycy9uZXQvdXNiL2hzby5jIHwgMTggKysrKysrKysrKysrKysrKy0t CiAxIGZpbGUgY2hhbmdlZCwgMTYgaW5zZXJ0aW9ucygrKSwgMiBkZWxldGlvbnMoLSkKCmRpZmYg LS1naXQgYS9kcml2ZXJzL25ldC91c2IvaHNvLmMgYi9kcml2ZXJzL25ldC91c2IvaHNvLmMKaW5k ZXggMTg0YzI0YmFjYTE1Li5kNjkxNmY3ODdmY2UgMTAwNjQ0Ci0tLSBhL2RyaXZlcnMvbmV0L3Vz Yi9oc28uYworKysgYi9kcml2ZXJzL25ldC91c2IvaHNvLmMKQEAgLTI4MDcsNiArMjgwNywxMiBA QCBzdGF0aWMgaW50IGhzb19nZXRfY29uZmlnX2RhdGEoc3RydWN0IHVzYl9pbnRlcmZhY2UgKmlu dGVyZmFjZSkKIAkJcmV0dXJuIC1FSU87CiAJfQogCisJLyogY2hlY2sgaWYgd2UgaGF2ZSBhIHZh bGlkIGludGVyZmFjZSAqLworCWlmIChpZl9udW0gPiAxNikgeworCQlrZnJlZShjb25maWdfZGF0 YSk7CisJCXJldHVybiAtRUlOVkFMOworCX0KKwogCXN3aXRjaCAoY29uZmlnX2RhdGFbaWZfbnVt XSkgewogCWNhc2UgMHgwOgogCQlyZXN1bHQgPSAwOwpAQCAtMjg3NywxMCArMjg4MywxOCBAQCBz dGF0aWMgaW50IGhzb19wcm9iZShzdHJ1Y3QgdXNiX2ludGVyZmFjZSAqaW50ZXJmYWNlLAogCiAJ LyogR2V0IHRoZSBpbnRlcmZhY2UvcG9ydCBzcGVjaWZpY2F0aW9uIGZyb20gZWl0aGVyIGRyaXZl cl9pbmZvIG9yIGZyb20KIAkgKiB0aGUgZGV2aWNlIGl0c2VsZiAqLwotCWlmIChpZC0+ZHJpdmVy X2luZm8pCisJaWYgKGlkLT5kcml2ZXJfaW5mbykgeworCQkvKiBpZl9udW0gaXMgY29udHJvbGxl ZCBieSB0aGUgZGV2aWNlLCBkcml2ZXJfaW5mbyBpcyBhIDAgdGVybWluYXRlZAorCQkgKiBhcnJh eS4gTWFrZSBzdXJlLCB0aGUgYWNjZXNzIGlzIGluIGJvdW5kcyEgKi8KKwkJZm9yIChpID0gMDsg aSA8PSBpZl9udW07ICsraSkKKwkJCWlmICgoKHUzMiAqKShpZC0+ZHJpdmVyX2luZm8pKVtpXSA9 PSAwKQorCQkJCWdvdG8gZXhpdDsKIAkJcG9ydF9zcGVjID0gKCh1MzIgKikoaWQtPmRyaXZlcl9p bmZvKSlbaWZfbnVtXTsKLQllbHNlCisJfSBlbHNlIHsKIAkJcG9ydF9zcGVjID0gaHNvX2dldF9j b25maWdfZGF0YShpbnRlcmZhY2UpOworCQlpZiAocG9ydF9zcGVjIDwgMCkKKwkJCWdvdG8gZXhp dDsKKwl9CiAKIAkvKiBDaGVjayBpZiB3ZSBuZWVkIHRvIHN3aXRjaCB0byBhbHQgaW50ZXJmYWNl cyBwcmlvciB0byBwb3J0CiAJICogY29uZmlndXJhdGlvbiAqLwo=