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Tue, 16 Apr 2024 11:00:25 +0800 (CST) Date: Tue, 16 Apr 2024 11:00:25 +0800 (CST) From: sicong To: johan@kernel.org, elder@kernel.org, gregkh@linuxfoundation.org Cc: greybus-dev@lists.linaro.org, linux-kernel@vger.kernel.org Subject: Bug report: greybus/interface.c: use-after-free bug in gb_interface_release due to race condition X-Priority: 3 X-Mailer: Coremail Webmail Server Version XT5.0.14 build 20230109(dcb5de15) Copyright (c) 2002-2024 www.mailtech.cn 163com X-NTES-SC: AL_Qu2aAf6YuUwp4yacZOkfm0YUh+c7UMO5ufQh245eOpF8jA3pwC0aW314EEXk8MuoJx+wqSOsegVAxc9EZYtjQoEABTFaSCd/suQ76tVeFWOxvA== Content-Transfer-Encoding: base64 Content-Type: text/plain; charset=GBK Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-ID: <280ee5e5.4936.18ee4d93bae.Coremail.congei42@163.com> X-Coremail-Locale: zh_CN X-CM-TRANSID:_____wD332rJ6R1m_90YAA--.6409W X-CM-SenderInfo: 5frqwvrlusqiywtou0bp/1tbiPQTB8mVOCdtXiQAGsr X-Coremail-Antispam: 1U5529EdanIXcx71UUUUU7vcSsGvfC2KfnxnUU== Z3JleWJ1cy9pbnRlcmZhY2UuYzogdXNlLWFmdGVyLWZyZWUgYnVnIGluIGdiX2ludGVyZmFjZV9y ZWxlYXNlIGR1ZSB0bwpyYWNlIGNvbmRpdGlvbi4KCkluIGdiX2ludGVyZmFjZV9jcmVhdGUsICZp bnRmLT5tb2RlX3N3aXRjaF9jb21wbGV0aW9uIGlzIGJvdW5kIHdpdGggCmdiX2ludGVyZmFjZV9t b2RlX3N3aXRjaF93b3JrLiBUaGVuIGl0IHdpbGwgYmUgc3RhcnRlZCBieSAKZ2JfaW50ZXJmYWNl X3JlcXVlc3RfbW9kZV9zd2l0Y2guIEhlcmUgaXMgdGhlIGNvZGUuCmlmICghcXVldWVfd29yayhz eXN0ZW1fbG9uZ193cSwgJmludGYtPm1vZGVfc3dpdGNoX3dvcmspKSB7CgkuLi4KfQoKSWYgd2Ug Y2FsbCBnYl9pbnRlcmZhY2VfcmVsZWFzZSB0byBtYWtlIGNsZWFudXAsIHRoZXJlIG1heSBiZSBh biAKdW5maW5pc2hlZCB3b3JrLiBUaGlzIGZ1bmN0aW9uIHdpbGwgY2FsbCBrZnJlZSB0byBmcmVl IHRoZSBvYmplY3QgCiJpbnRmIi4gSG93ZXZlciwgaWYgZ2JfaW50ZXJmYWNlX21vZGVfc3dpdGNo X3dvcmsgaXMgc2NoZWR1bGVkIHRvIApydW4gYWZ0ZXIga2ZyZWUsIGl0IG1heSBjYXVzZSB1c2Ut YWZ0ZXItZnJlZSBlcnJvciBhcyAKZ2JfaW50ZXJmYWNlX21vZGVfc3dpdGNoX3dvcmsgd2lsbCB1 c2UgdGhlIG9iamVjdCAiaW50ZiIuIApUaGUgcG9zc2libGUgZXhlY3V0aW9uIGZsb3cgdGhhdCBt YXkgbGVhZCB0byB0aGUgaXNzdWUgaXMgYXMgZm9sbG93czoKCkNQVTAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgQ1BVMQoKICAgICAgICAgICAgICAgICAgICAgICAgICAgIHwgICBnYl9pbnRl cmZhY2VfY3JlYXRlCiAgICAgICAgICAgICAgICAgICAgICAgICAgICB8ICAgZ2JfaW50ZXJmYWNl X3JlcXVlc3RfbW9kZV9zd2l0Y2gKZ2JfaW50ZXJmYWNlX3JlbGVhc2UgICAgICAgIHwKa2ZyZWUo aW50ZikgKGZyZWUpICAgICAgICAgIHwKICAgICAgICAgICAgICAgICAgICAgICAgICAgIHwgICBn Yl9pbnRlcmZhY2VfbW9kZV9zd2l0Y2hfd29yawogICAgICAgICAgICAgICAgICAgICAgICAgICAg fCAgIG11dGV4X2xvY2soJmludGYtPm11dGV4KSAodXNlKSAgIAoKVGhpcyBidWcgbWF5IGJlIGZp eGVkIGJ5IGFkZGluZyB0aGUgZm9sbG93aW5nIGNvZGUgYmVmb3JlIGtmcmVlLgpjYW5jZWxfd29y a19zeW5jKCZpbnRmLT5tb2RlX3N3aXRjaF93b3JrKTsKCkJlc3QgcmVnYXJkcywKU2ljb25nIEh1 YW5nCgo=