From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ot1-f70.google.com (mail-ot1-f70.google.com [209.85.210.70]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9D2A5374E40 for ; Wed, 22 Apr 2026 21:34:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.70 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776893701; cv=none; b=WzC+MwG0jW5aD3/Tv1oGsa9Pz6T3s3K/s2n2Rg0k3OuwXsWFEZ8Kx/Q2hMtDZ2FHHYcJ8L6BkBWOFLa16hoCGC8L04BMwcEpRm0ZEiA5/m68drMLD4Ekwi49uSGEzdsC7nVm1M+99UUpQMdJNSb3C5k+D3b6//bH1NAH7Yb/AO0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776893701; c=relaxed/simple; bh=1mfmXlgWy1LsEqzv6KvIscEcbdBYwdxhWIR32Nxdsw4=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=rsjzq0t68hw4Becvslf9HesgeJPwhT0qHPF2bwU8SAB1vx7asBjeta0qLkeUA5j8qN8V2zkpjJPgqnTcpGZjwrjZGj+lVYwJyYcwUSA1uVobTO2VijVq0G2YgJ19C41C53sMuYjYGW8iD3Rxj848LH4HjfAbyzKpgIffC67YMaM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.210.70 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-ot1-f70.google.com with SMTP id 46e09a7af769-7dcd9061254so4639053a34.0 for ; Wed, 22 Apr 2026 14:34:59 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1776893698; x=1777498498; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=hRgbzuj+cPF0JIkCgXgHyLD3d6Qjn8Bsydkv8HBR9n4=; b=e6XMEEF17W44rm3eCAmZUoLCnJd1Nox765dhsTXOrSVXskyznx2nP5gh2pMykCVqYE OE+oUHFJWmxFa5doPp75Phc3W/JYI65oEgjyFql/LctRe5GfPJwoPXbtF65n44a1pw4a 9eemMGd+uKuI6fYOhhjRp6lA7SaiClBvZhZg8Ai6uTPjo8giiaKoJKaSd+/yhoDSGIEn NM61BwwYVCZGkS1UyWqcO8CSrCx5FlQT13rpmo4Sc3wh1EcOcG7q7eGUzuy/+SO/3DrE CchYv57r41RgUw4ifbAe0Xk0ebUb5/IBf1HU5qX+FyvK6fjY3tuTj/KP75OKO6bCP8Yk khDQ== X-Gm-Message-State: AOJu0YzHJ0cPVwx2uskBkXquPW2bt7Qs7DIB8wtW1m5/NvzPdNuuh1oX FErEamn6fcjKMKU6MFD9CNMXdyQyao2iSusRFEI6cIK7ObYCTNWtTOlhCwtu1Oos66wOF0bfjX/ Z0nplRTr4mqQTUJNb9Z/4XiosPFt6tG2UuRU2mPX0YSSo1pC0O0uyEB2TnGQ= Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:f0c:b0:694:a1d0:113b with SMTP id 006d021491bc7-694a1d0157cmr3587125eaf.50.1776893698660; Wed, 22 Apr 2026 14:34:58 -0700 (PDT) Date: Wed, 22 Apr 2026 14:34:58 -0700 In-Reply-To: <689ff5f6.050a0220.e29e5.0032.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <69e93f02.050a0220.24bfd3.0045.GAE@google.com> Subject: Forwarded: Re: [syzbot] [usb?] KASAN: slab-out-of-bounds Read in usbtmc_interrupt From: syzbot To: linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" For archival purposes, forwarding an incoming command email to linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com. *** Subject: Re: [syzbot] [usb?] KASAN: slab-out-of-bounds Read in usbtmc_interrupt Author: halves@igalia.com #syz test --- a/drivers/usb/class/usbtmc.c +++ b/drivers/usb/class/usbtmc.c @@ -2452,7 +2452,7 @@ static int usbtmc_probe(struct usb_interface *intf, kref_get(&data->kref); /* allocate buffer for interrupt in */ - data->iin_buffer = kmalloc(data->iin_wMaxPacketSize, + data->iin_buffer = kmalloc(max(2, data->iin_wMaxPacketSize), GFP_KERNEL); if (!data->iin_buffer) { retcode = -ENOMEM;