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Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.8.0 Subject: Re: [RESEND PATCH] media: mtk-jpeg: Fix use after free bug due to uncanceled work Content-Language: en-US To: Zheng Hacker , Zheng Wang , Irui Wang Cc: mchehab@kernel.org, bin.liu@mediatek.com, matthias.bgg@gmail.com, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, 1395428693sheep@gmail.com, alex000young@gmail.com References: <20230306062633.200427-1-zyytlz.wz@163.com> From: AngeloGioacchino Del Regno In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230307_014933_756249_48EE23BD X-CRM114-Status: GOOD ( 17.71 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org SWwgMDcvMDMvMjMgMTA6MjcsIFpoZW5nIEhhY2tlciBoYSBzY3JpdHRvOgo+IEhpLAo+IAo+IElz IHRoZXJlIGFueW9uZSB3aG8gY2FuIGhlbHAgd2l0aCB0aGlzPyBJIGNhbiBwcm92aWRlIG1vcmUg ZGV0YWlscwo+IGxpa2UgaW52b2tpbmcgY2hhaW4gaWYgbmVlZGVkLgo+IAoKUHJvdmlkaW5nIG1v cmUgZGV0YWlscyBpcyBhbHdheXMgZ29vZC4gUGxlYXNlIGRvLgoKTWVhbndoaWxlLCBhZGRpbmcg SXJ1aSBXYW5nIHRvIHRoZSBsb29wOiBoZSdzIGRvaW5nIG10ay1qcGVnLgoKUmVnYXJkcywKQW5n ZWxvCgo+IFRoYW5rcywKPiBaaGVuZwo+IAo+IFpoZW5nIFdhbmcgPHp5eXRsei53ekAxNjMuY29t PiDkuo4yMDIz5bm0M+aciDbml6XlkajkuIAgMTQ6MjjlhpnpgZPvvJoKPj4KPj4gSW4gbXRrX2pw ZWdfcHJvYmUsICZqcGVnLT5qb2JfdGltZW91dF93b3JrIGlzIGJvdW5kIHdpdGgKPj4gbXRrX2pw ZWdfam9iX3RpbWVvdXRfd29yay4gVGhlbiBtdGtfanBlZ19kZWNfZGV2aWNlX3J1bgo+PiBhbmQg bXRrX2pwZWdfZW5jX2RldmljZV9ydW4gbWF5IGJlIGNhbGxlZCB0byBzdGFydCB0aGUKPj4gd29y ay4KPj4gSWYgd2UgcmVtb3ZlIHRoZSBtb2R1bGUgd2hpY2ggd2lsbCBjYWxsIG10a19qcGVnX3Jl bW92ZQo+PiB0byBtYWtlIGNsZWFudXAsIHRoZXJlIG1heSBiZSBhIHVuZmluaXNoZWQgd29yay4g VGhlCj4+IHBvc3NpYmxlIHNlcXVlbmNlIGlzIGFzIGZvbGxvd3MsIHdoaWNoIHdpbGwgY2F1c2Ug YQo+PiB0eXBpY2FsIFVBRiBidWcuCj4+Cj4+IEZpeCBpdCBieSBjYW5jZWxpbmcgdGhlIHdvcmsg YmVmb3JlIGNsZWFudXAgaW4gdGhlIG10a19qcGVnX3JlbW92ZQo+Pgo+PiBDUFUwICAgICAgICAg ICAgICAgICAgQ1BVMQo+Pgo+PiAgICAgICAgICAgICAgICAgICAgICB8bXRrX2pwZWdfam9iX3Rp bWVvdXRfd29yawo+PiBtdGtfanBlZ19yZW1vdmUgICAgIHwKPj4gICAgdjRsMl9tMm1fcmVsZWFz ZSAgfAo+PiAgICAgIGtmcmVlKG0ybV9kZXYpOyB8Cj4+ICAgICAgICAgICAgICAgICAgICAgIHwK Pj4gICAgICAgICAgICAgICAgICAgICAgfCB2NGwyX20ybV9nZXRfY3Vycl9wcml2Cj4+ICAgICAg ICAgICAgICAgICAgICAgIHwgICBtMm1fZGV2LT5jdXJyX2N0eCAvL3VzZQo+Pgo+PiBTaWduZWQt b2ZmLWJ5OiBaaGVuZyBXYW5nIDx6eXl0bHoud3pAMTYzLmNvbT4KPj4gLS0tCj4+ICAgZHJpdmVy cy9tZWRpYS9wbGF0Zm9ybS9tZWRpYXRlay9qcGVnL210a19qcGVnX2NvcmUuYyB8IDIgKy0KPj4g ICAxIGZpbGUgY2hhbmdlZCwgMSBpbnNlcnRpb24oKyksIDEgZGVsZXRpb24oLSkKPj4KPj4gZGlm ZiAtLWdpdCBhL2RyaXZlcnMvbWVkaWEvcGxhdGZvcm0vbWVkaWF0ZWsvanBlZy9tdGtfanBlZ19j b3JlLmMgYi9kcml2ZXJzL21lZGlhL3BsYXRmb3JtL21lZGlhdGVrL2pwZWcvbXRrX2pwZWdfY29y ZS5jCj4+IGluZGV4IDk2OTUxNmE5NDBiYS4uMzY0NTEzZTc4OTdlIDEwMDY0NAo+PiAtLS0gYS9k cml2ZXJzL21lZGlhL3BsYXRmb3JtL21lZGlhdGVrL2pwZWcvbXRrX2pwZWdfY29yZS5jCj4+ICsr KyBiL2RyaXZlcnMvbWVkaWEvcGxhdGZvcm0vbWVkaWF0ZWsvanBlZy9tdGtfanBlZ19jb3JlLmMK Pj4gQEAgLTE3OTMsNyArMTc5Myw3IEBAIHN0YXRpYyBpbnQgbXRrX2pwZWdfcHJvYmUoc3RydWN0 IHBsYXRmb3JtX2RldmljZSAqcGRldikKPj4gICBzdGF0aWMgaW50IG10a19qcGVnX3JlbW92ZShz dHJ1Y3QgcGxhdGZvcm1fZGV2aWNlICpwZGV2KQo+PiAgIHsKPj4gICAgICAgICAgc3RydWN0IG10 a19qcGVnX2RldiAqanBlZyA9IHBsYXRmb3JtX2dldF9kcnZkYXRhKHBkZXYpOwo+PiAtCj4+ICsg ICAgICAgY2FuY2VsX2RlbGF5ZWRfd29yaygmanBlZy0+am9iX3RpbWVvdXRfd29yayk7Cj4+ICAg ICAgICAgIHBtX3J1bnRpbWVfZGlzYWJsZSgmcGRldi0+ZGV2KTsKPj4gICAgICAgICAgdmlkZW9f dW5yZWdpc3Rlcl9kZXZpY2UoanBlZy0+dmRldik7Cj4+ICAgICAgICAgIHY0bDJfbTJtX3JlbGVh c2UoanBlZy0+bTJtX2Rldik7Cj4+IC0tCj4+IDIuMjUuMQo+PgoKCgoKX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KbGludXgtYXJtLWtlcm5lbCBtYWlsaW5n IGxpc3QKbGludXgtYXJtLWtlcm5lbEBsaXN0cy5pbmZyYWRlYWQub3JnCmh0dHA6Ly9saXN0cy5p bmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtYXJtLWtlcm5lbAo=