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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id ADED6C83F01 for ; Sat, 26 Aug 2023 05:09:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231148AbjHZFJZ (ORCPT ); Sat, 26 Aug 2023 01:09:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53014 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229518AbjHZFIt (ORCPT ); Sat, 26 Aug 2023 01:08:49 -0400 Received: from mail-pl1-f207.google.com (mail-pl1-f207.google.com [209.85.214.207]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3005E2685 for ; Fri, 25 Aug 2023 22:08:46 -0700 (PDT) Received: by mail-pl1-f207.google.com with SMTP id d9443c01a7336-1c0888c175fso15373545ad.3 for ; Fri, 25 Aug 2023 22:08:46 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1693026525; x=1693631325; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=cFS8hm8LjjBHweqoBE1nJ1SrxNNm5BjNxKLsW9d8J1g=; b=cAzp/H6vjxXngE8rI0CJaJZuwwD3zFz5ClQdZaoo7PrNEzooVqDXOLDFHehPt1UyyC 9/pqOY7IUN2gMoAbpXWzJRjel7n2I+dsHCRdeuVY6aOq2Sg0YqFS3n/CeGJ4yG+xPYqv JNYhPiA1F2r0YKJwuRi36NC0srahcseSYZq4XV98moa7aOpFOhtyP0NIcfItxE70VNiD ByIVN+w2OVpowvPoQPzAWZP0yG9m08p1musXMin0AEEakztEH/tBaKWi2R2zhXcnMxLu +KDUpjeaCzD+oIonyvfZbeX7ALqQSKaQwQ7veRwLVhdrbXmFSdAgfgdvlbrrL0AGu7iU LlZA== X-Gm-Message-State: AOJu0YyB6gNubULN8qI5t80ws9ElIK7fMNQDc0irjPYvgI2FQPmgh8R9 rHmq3nK6o2SWI1+qNImvShxmvyxeGIXEiJVfkIDrK8I225FJ6gdF2Q== X-Google-Smtp-Source: AGHT+IGKR5/4TCkmzoTlf5ed7EE6+ocwY0jjHkBU90nHsJK50Kw6dUU1dpIwnRM+jsYm5ULojM0ekNuvbT6X/SJYLrt6M4Fj3MDA MIME-Version: 1.0 X-Received: by 2002:a17:902:dace:b0:1b5:bd8:5aaa with SMTP id q14-20020a170902dace00b001b50bd85aaamr7088565plx.1.1693026525655; Fri, 25 Aug 2023 22:08:45 -0700 (PDT) Date: Fri, 25 Aug 2023 22:08:45 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000a838aa0603cc74d6@google.com> Subject: [syzbot] [media?] [usb?] KASAN: slab-out-of-bounds Read in imon_probe From: syzbot To: linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-usb@vger.kernel.org, mchehab@kernel.org, sean@mess.org, 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: 47d9bb711707 Add linux-next specific files for 20230821 git tree: linux-next console+strace: https://syzkaller.appspot.com/x/log.txt?x=123e50b7a80000 kernel config: https://syzkaller.appspot.com/x/.config?x=20999f779fa96017 dashboard link: https://syzkaller.appspot.com/bug?extid=59875ffef5cb9c9b29e9 compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10b08160680000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/ffbe03c733b7/disk-47d9bb71.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/a61a31d6caf9/vmlinux-47d9bb71.xz kernel image: https://storage.googleapis.com/syzbot-assets/37e6f882b2d9/bzImage-47d9bb71.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+59875ffef5cb9c9b29e9@syzkaller.appspotmail.com usb 1-1: 2:1 : UAC_AS_GENERAL descriptor not found ================================================================== BUG: KASAN: slab-out-of-bounds in imon_init_intf1 drivers/media/rc/imon.c:2323 [inline] BUG: KASAN: slab-out-of-bounds in imon_probe+0x298f/0x38f0 drivers/media/rc/imon.c:2449 Read of size 1 at addr ffff888069cbac71 by task kworker/1:3/5066 CPU: 1 PID: 5066 Comm: kworker/1:3 Not tainted 6.5.0-rc7-next-20230821-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023 Workqueue: usb_hub_wq hub_event Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106 print_address_description mm/kasan/report.c:364 [inline] print_report+0xc4/0x620 mm/kasan/report.c:475 kasan_report+0xda/0x110 mm/kasan/report.c:588 imon_init_intf1 drivers/media/rc/imon.c:2323 [inline] imon_probe+0x298f/0x38f0 drivers/media/rc/imon.c:2449 usb_probe_interface+0x307/0x930 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:579 [inline] really_probe+0x234/0xc90 drivers/base/dd.c:658 __driver_probe_device+0x1de/0x4b0 drivers/base/dd.c:800 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:830 __device_attach_driver+0x1d4/0x300 drivers/base/dd.c:958 bus_for_each_drv+0x157/0x1d0 drivers/base/bus.c:457 __device_attach+0x1e8/0x4b0 drivers/base/dd.c:1030 bus_probe_device+0x17c/0x1c0 drivers/base/bus.c:532 device_add+0x11f1/0x1b40 drivers/base/core.c:3623 usb_set_configuration+0x10cb/0x1c40 drivers/usb/core/message.c:2207 usb_generic_driver_probe+0xca/0x130 drivers/usb/core/generic.c:238 usb_probe_device+0xda/0x2c0 drivers/usb/core/driver.c:293 call_driver_probe drivers/base/dd.c:579 [inline] really_probe+0x234/0xc90 drivers/base/dd.c:658 __driver_probe_device+0x1de/0x4b0 drivers/base/dd.c:800 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:830 __device_attach_driver+0x1d4/0x300 drivers/base/dd.c:958 bus_for_each_drv+0x157/0x1d0 drivers/base/bus.c:457 __device_attach+0x1e8/0x4b0 drivers/base/dd.c:1030 bus_probe_device+0x17c/0x1c0 drivers/base/bus.c:532 device_add+0x11f1/0x1b40 drivers/base/core.c:3623 usb_new_device+0xd80/0x1960 drivers/usb/core/hub.c:2589 hub_port_connect drivers/usb/core/hub.c:5440 [inline] hub_port_connect_change drivers/usb/core/hub.c:5580 [inline] port_event drivers/usb/core/hub.c:5740 [inline] hub_event+0x2daf/0x4e00 drivers/usb/core/hub.c:5822 process_one_work+0x887/0x15d0 kernel/workqueue.c:2630 process_scheduled_works kernel/workqueue.c:2703 [inline] worker_thread+0x8bb/0x1290 kernel/workqueue.c:2784 kthread+0x33a/0x430 kernel/kthread.c:388 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304 Allocated by task 5066: kasan_save_stack+0x33/0x50 mm/kasan/common.c:45 kasan_set_track+0x25/0x30 mm/kasan/common.c:52 ____kasan_kmalloc mm/kasan/common.c:374 [inline] __kasan_kmalloc+0xa2/0xb0 mm/kasan/common.c:383 kasan_kmalloc include/linux/kasan.h:198 [inline] __do_kmalloc_node mm/slab_common.c:1004 [inline] __kmalloc+0x60/0x100 mm/slab_common.c:1017 kmalloc include/linux/slab.h:604 [inline] kzalloc include/linux/slab.h:721 [inline] snd_card_new+0x74/0x110 sound/core/init.c:184 snd_usb_audio_create sound/usb/card.c:621 [inline] usb_audio_probe+0x1905/0x3c60 sound/usb/card.c:827 usb_probe_interface+0x307/0x930 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:579 [inline] really_probe+0x234/0xc90 drivers/base/dd.c:658 __driver_probe_device+0x1de/0x4b0 drivers/base/dd.c:800 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:830 __device_attach_driver+0x1d4/0x300 drivers/base/dd.c:958 bus_for_each_drv+0x157/0x1d0 drivers/base/bus.c:457 __device_attach+0x1e8/0x4b0 drivers/base/dd.c:1030 bus_probe_device+0x17c/0x1c0 drivers/base/bus.c:532 device_add+0x11f1/0x1b40 drivers/base/core.c:3623 usb_set_configuration+0x10cb/0x1c40 drivers/usb/core/message.c:2207 usb_generic_driver_probe+0xca/0x130 drivers/usb/core/generic.c:238 usb_probe_device+0xda/0x2c0 drivers/usb/core/driver.c:293 call_driver_probe drivers/base/dd.c:579 [inline] really_probe+0x234/0xc90 drivers/base/dd.c:658 __driver_probe_device+0x1de/0x4b0 drivers/base/dd.c:800 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:830 __device_attach_driver+0x1d4/0x300 drivers/base/dd.c:958 bus_for_each_drv+0x157/0x1d0 drivers/base/bus.c:457 __device_attach+0x1e8/0x4b0 drivers/base/dd.c:1030 bus_probe_device+0x17c/0x1c0 drivers/base/bus.c:532 device_add+0x11f1/0x1b40 drivers/base/core.c:3623 usb_new_device+0xd80/0x1960 drivers/usb/core/hub.c:2589 hub_port_connect drivers/usb/core/hub.c:5440 [inline] hub_port_connect_change drivers/usb/core/hub.c:5580 [inline] port_event drivers/usb/core/hub.c:5740 [inline] hub_event+0x2daf/0x4e00 drivers/usb/core/hub.c:5822 process_one_work+0x887/0x15d0 kernel/workqueue.c:2630 process_scheduled_works kernel/workqueue.c:2703 [inline] worker_thread+0x8bb/0x1290 kernel/workqueue.c:2784 kthread+0x33a/0x430 kernel/kthread.c:388 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304 The buggy address belongs to the object at ffff888069cba000 which belongs to the cache kmalloc-4k of size 4096 The buggy address is located 1 bytes to the right of allocated 3184-byte region [ffff888069cba000, ffff888069cbac70) The buggy address belongs to the physical page: page:ffffea0001a72e00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x69cb8 head:ffffea0001a72e00 order:3 entire_mapcount:0 nr_pages_mapped:0 pincount:0 flags: 0xfff00000000840(slab|head|node=0|zone=1|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 00fff00000000840 ffff888012c42140 dead000000000122 0000000000000000 raw: 0000000000000000 0000000000040004 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 3, migratetype Unmovable, gfp_mask 0x1d2820(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 27, tgid 27 (kworker/1:1), ts 97911259229, free_ts 34249861969 set_page_owner include/linux/page_owner.h:31 [inline] post_alloc_hook+0x2cf/0x340 mm/page_alloc.c:1530 prep_new_page mm/page_alloc.c:1537 [inline] get_page_from_freelist+0x10d7/0x31b0 mm/page_alloc.c:3213 __alloc_pages+0x1d0/0x4a0 mm/page_alloc.c:4469 alloc_pages+0x1a9/0x270 mm/mempolicy.c:2298 alloc_slab_page mm/slub.c:1870 [inline] allocate_slab+0x251/0x380 mm/slub.c:2017 new_slab mm/slub.c:2070 [inline] ___slab_alloc+0x8be/0x1570 mm/slub.c:3223 __slab_alloc.constprop.0+0x56/0xa0 mm/slub.c:3322 __slab_alloc_node mm/slub.c:3375 [inline] slab_alloc_node mm/slub.c:3468 [inline] __kmem_cache_alloc_node+0x137/0x350 mm/slub.c:3517 __do_kmalloc_node mm/slab_common.c:1003 [inline] __kmalloc_node_track_caller+0x50/0x100 mm/slab_common.c:1024 kmalloc_reserve+0xef/0x270 net/core/skbuff.c:575 __alloc_skb+0x12b/0x330 net/core/skbuff.c:644 alloc_skb include/linux/skbuff.h:1286 [inline] nsim_dev_trap_skb_build drivers/net/netdevsim/dev.c:748 [inline] nsim_dev_trap_report drivers/net/netdevsim/dev.c:805 [inline] nsim_dev_trap_report_work+0x29e/0xc70 drivers/net/netdevsim/dev.c:850 process_one_work+0x887/0x15d0 kernel/workqueue.c:2630 process_scheduled_works kernel/workqueue.c:2703 [inline] worker_thread+0x8bb/0x1290 kernel/workqueue.c:2784 kthread+0x33a/0x430 kernel/kthread.c:388 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 page last free stack trace: reset_page_owner include/linux/page_owner.h:24 [inline] free_pages_prepare mm/page_alloc.c:1130 [inline] free_unref_page_prepare+0x476/0xa40 mm/page_alloc.c:2342 free_unref_page+0x33/0x3b0 mm/page_alloc.c:2435 free_contig_range+0xb6/0x190 mm/page_alloc.c:6385 destroy_args+0x768/0x990 mm/debug_vm_pgtable.c:1028 debug_vm_pgtable+0x1d7e/0x3e00 mm/debug_vm_pgtable.c:1408 do_one_initcall+0x117/0x630 init/main.c:1232 do_initcall_level init/main.c:1294 [inline] do_initcalls init/main.c:1310 [inline] do_basic_setup init/main.c:1329 [inline] kernel_init_freeable+0x5c2/0x900 init/main.c:1547 kernel_init+0x1c/0x2a0 init/main.c:1437 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304 Memory state around the buggy address: ffff888069cbab00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff888069cbab80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff888069cbac00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 fc fc ^ ffff888069cbac80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff888069cbad00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ================================================================== --- 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. If the bug is already fixed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite bug's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the bug is a duplicate of another bug, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup