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charset="utf-8" Content-ID: <0D31A79F8D17C849AFD68C717668BD2A@namprd15.prod.outlook.com> Content-Transfer-Encoding: quoted-printable Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Subject: Re: KASAN: slab-out-of-bounds in hfsplus_bnode_read+0x268/0x290 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-07-28_03,2025-07-28_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1011 adultscore=0 bulkscore=0 suspectscore=0 priorityscore=1501 spamscore=0 mlxscore=0 impostorscore=0 phishscore=0 mlxlogscore=887 lowpriorityscore=0 malwarescore=0 classifier=spam authscore=99 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=2 engine=8.19.0-2505280000 definitions=main-2507280126 On Mon, 2025-07-28 at 15:40 +0800, Chenzhi Yang wrote: > > Hi Slava, > > Thank you for taking your time. >=20 > > We originally obtained this issue's syz and C reproducers using Syzkall= er's repro tool (refer to the URL below). The issue was triggered when we r= an the syz reproducer through Syzkaller. >=20 > > Url: https://github.com/google/syzkaller/blob/master/docs/reproducing_c= rashes.md =20 >=20 > > Syzkaller also provides syz-execprog to verify whether the C program ca= n trigger the issue. We are currently in the process of verifying whether t= he C reproducer can reliably reproduce the issue. Please allow us some time= to complete this verification. >=20 > > We'll follow up with you once we have more concrete results. >=20 > > Best regards, > > Kun >=20 > Hi Kun, >=20 > Just wanted to follow up, how is the verification of the C reproducer goi= ng? > If it does reliably reproduce the issue, could you also let us know under= what > scenario or environment it occurs? >=20 I already shared the patch [1] for this issue. Thanks, Slava. [1] https://lore.kernel.org/linux-fsdevel/20250703214804.244077-1-slava@dubeyko= .com/