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([2405:201:31:d869:f90c:b1d6:a722:7f9d]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-7c3f0b62e95sm117707b3a.49.2025.11.19.11.21.41 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 19 Nov 2025 11:21:43 -0800 (PST) Content-Type: multipart/mixed; boundary="------------zqXZ6heSUwwpYluG4WpryJIn" Message-ID: Date: Thu, 20 Nov 2025 00:51:39 +0530 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird To: syzbot+905d785c4923bea2c1db@syzkaller.appspotmail.com Cc: axboe@kernel.dk, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com References: <0000000000003d3747060ed5e859@google.com> Subject: Re: [syzbot] [block?] KMSAN: kernel-infoleak in filemap_read Content-Language: en-US From: shaurya In-Reply-To: <0000000000003d3747060ed5e859@google.com> This is a multi-part message in MIME format. --------------zqXZ6heSUwwpYluG4WpryJIn Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit #syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master --------------zqXZ6heSUwwpYluG4WpryJIn Content-Type: text/x-patch; charset=UTF-8; name="0001-hfsplus-fix-uninit-value-in-hfsplus_cat_build_record.patch" Content-Disposition: attachment; filename*0="0001-hfsplus-fix-uninit-value-in-hfsplus_cat_build_record.pa"; filename*1="tch" Content-Transfer-Encoding: base64 RnJvbSAxMzM2YjIyYmI5ZjNmZjRlMTQ0YzQxMjJhNGI0YjEzYzUzZTY4MmE3IE1vbiBTZXAg MTcgMDA6MDA6MDAgMjAwMQpGcm9tOiBTaGF1cnlhIFJhbmUgPHNzcmFuZV9iMjNAZWUudmp0 aS5hYy5pbj4KRGF0ZTogVGh1LCAyMCBOb3YgMjAyNSAwMDo0NDoyMSArMDUzMApTdWJqZWN0 OiBbUEFUQ0hdIGhmc3BsdXM6IGZpeCB1bmluaXQtdmFsdWUgaW4gaGZzcGx1c19jYXRfYnVp bGRfcmVjb3JkCgpUaGUgcm9vdCBjYXVzZSBpcyBpbiBoZnNwbHVzX2NhdF9idWlsZF9yZWNv cmQoKSwgd2hpY2ggYnVpbGRzIGNhdGFsb2cKZW50cmllcyB1c2luZyB0aGUgdW5pb24gaGZz cGx1c19jYXRfZW50cnkuIFRoaXMgdW5pb24gY29udGFpbnMgdGhyZWUKbWVtYmVycyB3aXRo IHNpZ25pZmljYW50bHkgZGlmZmVyZW50IHNpemVzOgoKICBzdHJ1Y3QgaGZzcGx1c19jYXRf Zm9sZGVyIGZvbGRlcjsgICAgKDg4IGJ5dGVzKQogIHN0cnVjdCBoZnNwbHVzX2NhdF9maWxl IGZpbGU7ICAgICAgICAoMjQ4IGJ5dGVzKQogIHN0cnVjdCBoZnNwbHVzX2NhdF90aHJlYWQg dGhyZWFkOyAgICAoNTIwIGJ5dGVzKQoKVGhlIGZ1bmN0aW9uIHdhcyBvbmx5IHplcm9pbmcg dGhlIHNwZWNpZmljIG1lbWJlciBiZWluZyB1c2VkIChmb2xkZXIgb3IKZmlsZSksIG5vdCB0 aGUgZW50aXJlIHVuaW9uLiBUaGlzIGxlZnQgc2lnbmlmaWNhbnQgdW5pbml0aWFsaXplZCBk YXRhOgoKICBGb3IgZm9sZGVyczogNTIwIC0gODggID0gNDMyIGJ5dGVzIHVuaW5pdGlhbGl6 ZWQKICBGb3IgZmlsZXM6ICAgNTIwIC0gMjQ4ID0gMjcyIGJ5dGVzIHVuaW5pdGlhbGl6ZWQK ClRoaXMgdW5pbml0aWFsaXplZCBkYXRhIHdhcyB0aGVuIHdyaXR0ZW4gdG8gZGlzayB2aWEg aGZzX2JyZWNfaW5zZXJ0KCksCnJlYWQgYmFjayB0aHJvdWdoIHRoZSBsb29wIGRldmljZSwg YW5kIGV2ZW50dWFsbHkgY29waWVkIHRvIHVzZXJzcGFjZQp2aWEgZmlsZW1hcF9yZWFkKCks IHJlc3VsdGluZyBpbiBhIGxlYWsgb2Yga2VybmVsIHN0YWNrIG1lbW9yeS4KRml4IHRoaXMg YnkgemVyb2luZyB0aGUgZW50aXJlIHVuaW9uIGJlZm9yZSBpbml0aWFsaXppbmcgdGhlIHNw ZWNpZmljCm1lbWJlci4gVGhpcyBlbnN1cmVzIG5vIHVuaW5pdGlhbGl6ZWQgYnl0ZXMgcmVt YWluLgoKUmVwb3J0ZWQtYnk6IHN5emJvdCs5MDVkNzg1YzQ5MjNiZWEyYzFkYkBzeXprYWxs ZXIuYXBwc3BvdG1haWwuY29tCkNsb3NlczogaHR0cHM6Ly9zeXprYWxsZXIuYXBwc3BvdC5j b20vYnVnP2V4dGlkPTkwNWQ3ODVjNDkyM2JlYTJjMWRiCkZpeGVzOiAxZGExNzdlNGMzZjQK ClNpZ25lZC1vZmYtYnk6IFNoYXVyeWEgUmFuZSA8c3NyYW5lX2IyM0BlZS52anRpLmFjLmlu PgotLS0KIGZzL2hmc3BsdXMvY2F0YWxvZy5jIHwgNiArKysrLS0KIDEgZmlsZSBjaGFuZ2Vk LCA0IGluc2VydGlvbnMoKyksIDIgZGVsZXRpb25zKC0pCgpkaWZmIC0tZ2l0IGEvZnMvaGZz cGx1cy9jYXRhbG9nLmMgYi9mcy9oZnNwbHVzL2NhdGFsb2cuYwppbmRleCAwMmMxZWVlNGE0 YjguLjRkNDJlNzEzOWYzYiAxMDA2NDQKLS0tIGEvZnMvaGZzcGx1cy9jYXRhbG9nLmMKKysr IGIvZnMvaGZzcGx1cy9jYXRhbG9nLmMKQEAgLTExMSw3ICsxMTEsOCBAQCBzdGF0aWMgaW50 IGhmc3BsdXNfY2F0X2J1aWxkX3JlY29yZChoZnNwbHVzX2NhdF9lbnRyeSAqZW50cnksCiAJ CXN0cnVjdCBoZnNwbHVzX2NhdF9mb2xkZXIgKmZvbGRlcjsKIAogCQlmb2xkZXIgPSAmZW50 cnktPmZvbGRlcjsKLQkJbWVtc2V0KGZvbGRlciwgMCwgc2l6ZW9mKCpmb2xkZXIpKTsKKwkJ LyogWmVybyB0aGUgZW50aXJlIHVuaW9uIHRvIGF2b2lkIGxlYWtpbmcgdW5pbml0aWFsaXpl ZCBkYXRhICovCisJCW1lbXNldChlbnRyeSwgMCwgc2l6ZW9mKCplbnRyeSkpOwogCQlmb2xk ZXItPnR5cGUgPSBjcHVfdG9fYmUxNihIRlNQTFVTX0ZPTERFUik7CiAJCWlmICh0ZXN0X2Jp dChIRlNQTFVTX1NCX0hGU1gsICZzYmktPmZsYWdzKSkKIAkJCWZvbGRlci0+ZmxhZ3MgfD0g Y3B1X3RvX2JlMTYoSEZTUExVU19IQVNfRk9MREVSX0NPVU5UKTsKQEAgLTEzMCw3ICsxMzEs OCBAQCBzdGF0aWMgaW50IGhmc3BsdXNfY2F0X2J1aWxkX3JlY29yZChoZnNwbHVzX2NhdF9l bnRyeSAqZW50cnksCiAJCXN0cnVjdCBoZnNwbHVzX2NhdF9maWxlICpmaWxlOwogCiAJCWZp bGUgPSAmZW50cnktPmZpbGU7Ci0JCW1lbXNldChmaWxlLCAwLCBzaXplb2YoKmZpbGUpKTsK KwkJLyogWmVybyB0aGUgZW50aXJlIHVuaW9uIHRvIGF2b2lkIGxlYWtpbmcgdW5pbml0aWFs aXplZCBkYXRhICovCisJCW1lbXNldChlbnRyeSwgMCwgc2l6ZW9mKCplbnRyeSkpOwogCQlm aWxlLT50eXBlID0gY3B1X3RvX2JlMTYoSEZTUExVU19GSUxFKTsKIAkJZmlsZS0+ZmxhZ3Mg PSBjcHVfdG9fYmUxNihIRlNQTFVTX0ZJTEVfVEhSRUFEX0VYSVNUUyk7CiAJCWZpbGUtPmlk ID0gY3B1X3RvX2JlMzIoY25pZCk7Ci0tIAoyLjM0LjEKCg== --------------zqXZ6heSUwwpYluG4WpryJIn--