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([2405:201:31:d869:c163:7f74:bed9:a2d1]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-29b5b1075basm170831165ad.21.2025.11.25.09.42.40 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 25 Nov 2025 09:42:42 -0800 (PST) Content-Type: multipart/mixed; boundary="------------45qQ0oCK0HZ0Ruk4XZVcr08P" Message-ID: <3e74d313-99df-4aeb-87b3-612f4f3634f0@gmail.com> Date: Tue, 25 Nov 2025 23:12:38 +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+2fa344348a579b779e05@syzkaller.appspotmail.com Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com References: <6925da1b.a70a0220.d98e3.00af.GAE@google.com> Subject: Re: [syzbot] [batman?] KMSAN: uninit-value in skb_clone Content-Language: en-US From: shaurya In-Reply-To: <6925da1b.a70a0220.d98e3.00af.GAE@google.com> This is a multi-part message in MIME format. --------------45qQ0oCK0HZ0Ruk4XZVcr08P 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 --------------45qQ0oCK0HZ0Ruk4XZVcr08P Content-Type: text/x-patch; charset=UTF-8; name="0001-hsr-fix-NULL-pointer-dereference-in-skb_clone-with-h.patch" Content-Disposition: attachment; filename*0="0001-hsr-fix-NULL-pointer-dereference-in-skb_clone-with-h.pa"; filename*1="tch" Content-Transfer-Encoding: base64 RnJvbSA5YmRlODZhZDJlZDYzYWNjMDlhMjVlNjY1MDI4ZGJhZGE3ZjVmMGFjIE1vbiBTZXAg MTcgMDA6MDA6MDAgMjAwMQpGcm9tOiBTaGF1cnlhIFJhbmUgPHNzcmFuZV9iMjNAZWUudmp0 aS5hYy5pbj4KRGF0ZTogVHVlLCAyNSBOb3YgMjAyNSAyMzowMjozMyArMDUzMApTdWJqZWN0 OiBbUEFUQ0hdIGhzcjogZml4IE5VTEwgcG9pbnRlciBkZXJlZmVyZW5jZSBpbiBza2JfY2xv bmUgd2l0aCBodyB0YWcKIGluc2VydGlvbgoKV2hlbiBoYXJkd2FyZSBIU1IgdGFnIGluc2Vy dGlvbiBpcyBlbmFibGVkIChORVRJRl9GX0hXX0hTUl9UQUdfSU5TKSBhbmQKZnJhbWUtPnNr Yl9zdGQgaXMgTlVMTCwgYm90aCBoc3JfY3JlYXRlX3RhZ2dlZF9mcmFtZSgpIGFuZApwcnBf Y3JlYXRlX3RhZ2dlZF9mcmFtZSgpIHdpbGwgY2FsbCBza2JfY2xvbmUoKSB3aXRoIGEgTlVM TCBza2IgcG9pbnRlciwKY2F1c2luZyBhIGtlcm5lbCBjcmFzaC4KCkZpeCB0aGlzIGJ5IGFk ZGluZyBOVUxMIGNoZWNrcyBmb3IgZnJhbWUtPnNrYl9zdGQgYmVmb3JlIGNhbGxpbmcKc2ti X2Nsb25lKCkgaW4gYm90aCBmdW5jdGlvbnMuCgpSZXBvcnRlZC1ieTogc3l6Ym90KzJmYTM0 NDM0OGE1NzliNzc5ZTA1QHN5emthbGxlci5hcHBzcG90bWFpbC5jb20KRml4ZXM6IGYyNjZh NjgzYTQ4MCAoXCJuZXQvaHNyOiBCZXR0ZXIgZnJhbWUgZGlzcGF0Y2hcIikKU2lnbmVkLW9m Zi1ieTogU2hhdXJ5YSBSYW5lIDxzc3JhbmVfYjIzQGVlLnZqdGkuYWMuaW4+Ci0tLQogbmV0 L2hzci9oc3JfZm9yd2FyZC5jIHwgNCArKysrCiAxIGZpbGUgY2hhbmdlZCwgNCBpbnNlcnRp b25zKCspCgpkaWZmIC0tZ2l0IGEvbmV0L2hzci9oc3JfZm9yd2FyZC5jIGIvbmV0L2hzci9o c3JfZm9yd2FyZC5jCmluZGV4IDMzOWYwZDIyMDIxMi4uN2JkODI3NjdjNTQ0IDEwMDY0NAot LS0gYS9uZXQvaHNyL2hzcl9mb3J3YXJkLmMKKysrIGIvbmV0L2hzci9oc3JfZm9yd2FyZC5j CkBAIC0zNDEsNiArMzQxLDggQEAgc3RydWN0IHNrX2J1ZmYgKmhzcl9jcmVhdGVfdGFnZ2Vk X2ZyYW1lKHN0cnVjdCBoc3JfZnJhbWVfaW5mbyAqZnJhbWUsCiAJCWhzcl9zZXRfcGF0aF9p ZChmcmFtZSwgaHNyX2V0aGhkciwgcG9ydCk7CiAJCXJldHVybiBza2JfY2xvbmUoZnJhbWUt PnNrYl9oc3IsIEdGUF9BVE9NSUMpOwogCX0gZWxzZSBpZiAocG9ydC0+ZGV2LT5mZWF0dXJl cyAmIE5FVElGX0ZfSFdfSFNSX1RBR19JTlMpIHsKKwkJaWYgKCFmcmFtZS0+c2tiX3N0ZCkK KwkJCXJldHVybiBOVUxMOwogCQlyZXR1cm4gc2tiX2Nsb25lKGZyYW1lLT5za2Jfc3RkLCBH RlBfQVRPTUlDKTsKIAl9CiAKQEAgLTM4NSw2ICszODcsOCBAQCBzdHJ1Y3Qgc2tfYnVmZiAq cHJwX2NyZWF0ZV90YWdnZWRfZnJhbWUoc3RydWN0IGhzcl9mcmFtZV9pbmZvICpmcmFtZSwK IAkJfQogCQlyZXR1cm4gc2tiX2Nsb25lKGZyYW1lLT5za2JfcHJwLCBHRlBfQVRPTUlDKTsK IAl9IGVsc2UgaWYgKHBvcnQtPmRldi0+ZmVhdHVyZXMgJiBORVRJRl9GX0hXX0hTUl9UQUdf SU5TKSB7CisJCWlmICghZnJhbWUtPnNrYl9zdGQpCisJCQlyZXR1cm4gTlVMTDsKIAkJcmV0 dXJuIHNrYl9jbG9uZShmcmFtZS0+c2tiX3N0ZCwgR0ZQX0FUT01JQyk7CiAJfQogCi0tIAoy LjM0LjEKCg== --------------45qQ0oCK0HZ0Ruk4XZVcr08P--