From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1A39BC433E9 for ; Wed, 23 Dec 2020 15:26:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D505D23343 for ; Wed, 23 Dec 2020 15:26:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726969AbgLWPZ7 (ORCPT ); Wed, 23 Dec 2020 10:25:59 -0500 Received: from mail-io1-f72.google.com ([209.85.166.72]:42613 "EHLO mail-io1-f72.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725536AbgLWPZ6 (ORCPT ); Wed, 23 Dec 2020 10:25:58 -0500 Received: by mail-io1-f72.google.com with SMTP id m9so9610027ioa.9 for ; Wed, 23 Dec 2020 07:25:42 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:message-id:subject:from:to; bh=ccI8XWc2bkBr3nAUmdNVuOgWrLgiP4ffUXMAehqESVc=; b=Ehy1ylApotKrZtI+gUWcMutgkPJFZFgCWq5zVzcskpaq1o5O/Mlw7FPqjlNmBIMR5V maS4DVg33QRgUTAw4Yomo8336qKFSHiqL6HdVOMrJPxWKcdF6jI/BwWJV7NXuyGAm1wq kuWTyDXnnrhFDvfmu4CWYoIfxNMIO8873f+1UDEEQwQe5iSCgq4XFju4Mg+pRrCeD2vt KRaZW7p3vzQA2wJJrflXVcarFTe3zBNGDvbMgJ7kjzQElR7mCvTtxT1ZTea3Sm6ioLT2 Y5iDHu4gLBHEvitK2G39MtZkO07eVpGMnmF6aO4CHA3imBeQOKa3F8UujMaghwg0Zg3Z Xj4A== X-Gm-Message-State: AOAM531nhtIKWwZLgK+fcGIajxsuN/y7VounM80arczTDPMGiKDmmmjh ku0+jX64n81B+ZwLE1fqbt9BPg+Sao136P6XPHr/XxZTspsy X-Google-Smtp-Source: ABdhPJx8vo7Y8yQHtUlIQ7SkyfkLzF0E+/Q5kGXsq5O9xMo9J7lBurcirREzhK+dz6cv/+m3tOhl7tmLnP8Wj5+4rpQPQytNgWbu MIME-Version: 1.0 X-Received: by 2002:a92:db42:: with SMTP id w2mr25735842ilq.113.1608737117405; Wed, 23 Dec 2020 07:25:17 -0800 (PST) Date: Wed, 23 Dec 2020 07:25:17 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000006b86be05b7234cc1@google.com> Subject: memory leak in zr364xx_probe From: syzbot To: linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-usb@vger.kernel.org, mchehab@kernel.org, royale@zerezo.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: 3644e2d2 mm/filemap: fix infinite loop in generic_file_buf.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=16f80eff500000 kernel config: https://syzkaller.appspot.com/x/.config?x=37c889fb8b2761af dashboard link: https://syzkaller.appspot.com/bug?extid=b4d54814b339b5c6bbd4 compiler: gcc (GCC) 10.1.0-syz 20200507 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1089df07500000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1671c77f500000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+b4d54814b339b5c6bbd4@syzkaller.appspotmail.com BUG: memory leak unreferenced object 0xffffc90000e71000 (size 200704): comm "kworker/0:2", pid 3653, jiffies 4294942426 (age 13.820s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000110a155e>] __vmalloc_node_range+0x3a5/0x410 mm/vmalloc.c:2585 [<000000008a1ee970>] __vmalloc_node mm/vmalloc.c:2617 [inline] [<000000008a1ee970>] vmalloc+0x49/0x50 mm/vmalloc.c:2650 [<00000000a6a3abfa>] zr364xx_board_init drivers/media/usb/zr364xx/zr364xx.c:1348 [inline] [<00000000a6a3abfa>] zr364xx_probe+0x60b/0x833 drivers/media/usb/zr364xx/zr364xx.c:1509 [<0000000014a572f5>] usb_probe_interface+0x177/0x370 drivers/usb/core/driver.c:396 [<00000000f30ee977>] really_probe+0x159/0x480 drivers/base/dd.c:561 [<00000000ddb29374>] driver_probe_device+0x84/0x100 drivers/base/dd.c:745 [<0000000073c89cb9>] __device_attach_driver+0xee/0x110 drivers/base/dd.c:851 [<000000009f56a99c>] bus_for_each_drv+0xb7/0x100 drivers/base/bus.c:431 [<00000000848d591a>] __device_attach+0x122/0x250 drivers/base/dd.c:919 [<00000000168be5bb>] bus_probe_device+0xc6/0xe0 drivers/base/bus.c:491 [<00000000464f40a6>] device_add+0x5be/0xc30 drivers/base/core.c:3091 [<000000008c75a2b5>] usb_set_configuration+0x9d9/0xb90 drivers/usb/core/message.c:2164 [<00000000071d14a5>] usb_generic_driver_probe+0x8c/0xc0 drivers/usb/core/generic.c:238 [<00000000f325b973>] usb_probe_device+0x5c/0x140 drivers/usb/core/driver.c:293 [<00000000f30ee977>] really_probe+0x159/0x480 drivers/base/dd.c:561 [<00000000ddb29374>] driver_probe_device+0x84/0x100 drivers/base/dd.c:745 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches