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bh=nVa13gnqEbh0OZfVTb62Mape7gGdjtHA5pEICJOEZkQ=; b=kK0lApBsvgRTKrjnu2IL+FRxEyR7mnsh3RP0I7hz5/8rfbhRiS/M1SmGvCx98qkRn50S40 DUuy6VU71VExjQDcGAojP8+opuH+Ak3vE7hk+5v7Ua5MzDtTQ9Y+P1E82gPRCP2QFiJWiv D23lVXQomE6b7XxqCYXDQT1snVJVZ6UpdrOS8YDH0D5kCPM6RMt21PyqGlpbt38Qm78oN2 vKLpRgvc2AEBNZxk7Y7ls2cI3pLo0ue9PBGwgs1z3xAdPxKvAohA+FyomgAYUoi/YQrrts 8qK0EOOPxIrYpGj3rjSXo9pFMyKBm4ndIRpT49dhsMT8Bn7Q0rgikBt90Dt3pg== From: Miquel Raynal To: Dan Carpenter Cc: =?utf-8?B?TWljaGHFgiBLxJlwaWXFhA==?= , Richard Weinberger , Vignesh Raghavendra , linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org Subject: Re: [PATCH v2 resend] mtdchar: fix integer overflow in read/write ioctls In-Reply-To: (Dan Carpenter's message of "Tue, 30 Sep 2025 15:32:34 +0300") References: User-Agent: mu4e 1.12.7; emacs 30.2 Date: Tue, 30 Sep 2025 14:57:19 +0200 Message-ID: <87qzvogksw.fsf@bootlin.com> MIME-Version: 1.0 X-Last-TLS-Session-Version: TLSv1.3 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250930_055745_280715_BD2F9076 X-CRM114-Status: GOOD ( 10.37 ) X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org SGkgRGFuLAoKT24gMzAvMDkvMjAyNSBhdCAxNTozMjozNCArMDMsIERhbiBDYXJwZW50ZXIgPGRh bi5jYXJwZW50ZXJAbGluYXJvLm9yZz4gd3JvdGU6Cgo+IFRoZSAicmVxLnN0YXJ0IiBhbmQgInJl cS5sZW4iIHZhcmlhYmxlcyBhcmUgdTY0IHZhbHVlcyB0aGF0IGNvbWUgZnJvbSB0aGUKPiB1c2Vy IGF0IHRoZSBzdGFydCBvZiB0aGUgZnVuY3Rpb24uICBXZSBtYXNrIGF3YXkgdGhlIGhpZ2ggMzIg Yml0cyBvZgo+ICJyZXEubGVuIiBzbyB0aGF0J3MgY2FwcGVkIGF0IFUzMl9NQVggYnV0IHRoZSAi cmVxLnN0YXJ0IiB2YXJpYWJsZSBjYW4gZ28KPiB1cCB0byBVNjRfTUFYIHdoaWNoIG1lYW5zIHRo YXQgdGhlIGFkZGl0aW9uIGNhbiBzdGlsbCBpbnRlZ2VyIG92ZXJmbG93Lgo+Cj4gVXNlIGNoZWNr X2FkZF9vdmVyZmxvdygpIHRvIGZpeCB0aGlzIGJ1Zy4KPgo+IEZpeGVzOiAwOTViYjZlNDRlYjEg KCJtdGRjaGFyOiBhZGQgTUVNUkVBRCBpb2N0bCIpCj4gRml4ZXM6IDY0MjBhYzBhZjk1ZCAoIm10 ZGNoYXI6IHByZXZlbnQgdW5ib3VuZGVkIGFsbG9jYXRpb24gaW4gTUVNV1JJVEUgaW9jdGwiKQo+ IENjOiBzdGFibGVAdmdlci5rZXJuZWwub3JnCj4gU2lnbmVkLW9mZi1ieTogRGFuIENhcnBlbnRl ciA8ZGFuLmNhcnBlbnRlckBsaW5hcm8ub3JnPgo+IC0tLQo+IHYyOiBmaXggdGhlIHRhZ3MuCj4g UkVTRU5EOiBJIHNlbnQgdGhpcyBsYXN0IHllYXIgYnV0IGl0IHdhc24ndCBhcHBsaWVkLgo+IGh0 dHBzOi8vbG9yZS5rZXJuZWwub3JnL2FsbC9aMWF4M0szLXpTSkV4UE5WQHN0YW5sZXkubW91bnRh aW4vCgpJIGRvbid0IGtub3cgd2h5LCBwZXJoYXBzIGl0IGdvdCBmaWx0ZXJlZCBhcyBTUEFNLCBJ IGRvbid0IGtub3csIGJ1dCBJJ20Kc29ycnkgYWJvdXQgdGhhdC4KCkkndmUganVzdCAiY2xvc2Vk IiBuZXh0LCBzbyBJJ2xsIHF1ZXVlIHRoaXMgaW4gYSBmaXhlcyBQUiBvbiB0b3Agb2YKdjUuMTgt cmMxLgoKVGhhbmtzLApNaXF1w6hsCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX18KTGludXggTVREIGRpc2N1c3Npb24gbWFpbGluZyBsaXN0Cmh0 dHA6Ly9saXN0cy5pbmZyYWRlYWQub3JnL21haWxtYW4vbGlzdGluZm8vbGludXgtbXRkLwo=