From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f206.google.com (mail-il1-f206.google.com [209.85.166.206]) (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 32F4F29993D for ; Mon, 7 Jul 2025 11:40:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.206 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751888428; cv=none; b=cMS+CPmUY2morM+ySPhKE4Z6kl7iOJU/XAxrBiOQVxai7hJBOD0yHxCxso+IpVaL+D9RiSORr5Cx7oPVtEUDVims16fRlxFCfPFkC0z8F5MhZa7fBIv3aKjL9EMmxtRkuMyoPSAXriCy3abXXJD9RKI+lZosaMfuP73DwD9tf5k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1751888428; c=relaxed/simple; bh=idwr+HzZ3j1lbCILV2az0UxxCvI1mBazJerAH8T9kvQ=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=LoTdzidxnC+SgMPjyrxsDbFOHPRgQuExkNWPXLk0p2CE3dcQH6JYKk5HM1BykVQYhXBft6wZ8oQU3pqio0/VpcvA2peSkAvnqmTdJfdk1HBtVwd+mvmIYF/yRVt2CoJ/u4ddbL8BJ1EuSc7yJ7DeMzJvmwVu47SxGoRIuShnCPg= 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=209.85.166.206 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-il1-f206.google.com with SMTP id e9e14a558f8ab-3de3b5b7703so16242935ab.1 for ; Mon, 07 Jul 2025 04:40:25 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1751888425; x=1752493225; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=k/ATQwYuI2IRVQHijpZHdpUXlZjbZtTlnyQfbopTOqM=; b=kKCfplfZQFG4uvs/lWjPG3IAajhtxB2ZymmNCMRElq+O65mbWUXzvor9Xyh0wOHw+4 rRLkfCrlCmalhMYmRv3fR6cSHleqaqotqkGQxmrx5fSDMh0dKVMooM8K0/d35oNWR33V rGZBilGG+BVjyR7cIZNIOA8FrA5anPVoW0fwue1KBHtjaP1KTOul+ZAItYqtR9h8Ksrk 1OWJZ+E/HzpYL+QcQnoRfKKgfTIaUiLhTQlwCADdiW05v59ZchfektoXVU5KgFjQRPqp jdCegwfY3ne6d8rqRaGOGoyZsQL8x6Q6YN94PIOnUGRAmFjE1PlNGqi4FBTjE0PBPUZC hrpQ== X-Forwarded-Encrypted: i=1; AJvYcCWYGSYTMysR7xU9PUHQIBliHHKxy93kX6iM8yfNdCNnMetRBj4mnZfHwx/xS1Pvc1pFdzLohe0xdAU=@vger.kernel.org X-Gm-Message-State: AOJu0Yxks6jsCXNJ+4ipuZ2LyOdNW40i3ZbNFfmSOVFSMydqdzl/Tyav UWzr3YOdw9RGqNDc1XOruY9h1RD1TZy6WEypEwM/N4VNnk/2/jPL/B8RYS12TZ0yaeeepSviJXR eacsWziRxX/sQ1kwAqfmB9k/5HXQepprFA7V+NSgUL1fnQnO8aANknGkpBh8= X-Google-Smtp-Source: AGHT+IEJTawIgOmT5vnDNYxGMIIYmzXvMcmSp8NA50/+iG9Hmw24A9L3lGDiTpYEDpTDrPkpIaUhgTBX3vhHY5EAxw6+pKE2TAx4 Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:378b:b0:3df:49b4:8cd6 with SMTP id e9e14a558f8ab-3e136f11795mr115103435ab.7.1751888425312; Mon, 07 Jul 2025 04:40:25 -0700 (PDT) Date: Mon, 07 Jul 2025 04:40:25 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <686bb229.a00a0220.c7b3.0081.GAE@google.com> Subject: [syzbot] [usb?] KASAN: slab-out-of-bounds Read in mon_copy_to_buff From: syzbot To: gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: b4911fb0b060 Merge tag 'mmc-v6.16-rc1' of git://git.kernel.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1681f982580000 kernel config: https://syzkaller.appspot.com/x/.config?x=8b0724e6945b4773 dashboard link: https://syzkaller.appspot.com/bug?extid=8258d5439c49d4c35f43 compiler: gcc (Debian 12.2.0-14+deb12u1) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/4347c5e481b1/disk-b4911fb0.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/94e212cacf21/vmlinux-b4911fb0.xz kernel image: https://storage.googleapis.com/syzbot-assets/8e0269b32eb1/bzImage-b4911fb0.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+8258d5439c49d4c35f43@syzkaller.appspotmail.com microsoft 0003:045E:07DA.000D: unknown main item tag 0x0 microsoft 0003:045E:07DA.000D: unknown main item tag 0x0 microsoft 0003:045E:07DA.000D: unknown main item tag 0x0 microsoft 0003:045E:07DA.000D: unknown main item tag 0x0 microsoft 0003:045E:07DA.000D: unknown main item tag 0x0 microsoft 0003:045E:07DA.000D: unknown main item tag 0x0 ================================================================== BUG: KASAN: slab-out-of-bounds in mon_copy_to_buff+0xc2/0x170 drivers/usb/mon/mon_bin.c:252 Read of size 4032 at addr ffff8880330e0801 by task kworker/0:6/5887 CPU: 0 UID: 0 PID: 5887 Comm: kworker/0:6 Not tainted 6.16.0-rc4-syzkaller-00049-gb4911fb0b060 #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Workqueue: usb_hub_wq hub_event Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:408 [inline] print_report+0xcd/0x680 mm/kasan/report.c:521 kasan_report+0xe0/0x110 mm/kasan/report.c:634 check_region_inline mm/kasan/generic.c:183 [inline] kasan_check_range+0x100/0x1b0 mm/kasan/generic.c:189 __asan_memcpy+0x23/0x60 mm/kasan/shadow.c:105 mon_copy_to_buff+0xc2/0x170 drivers/usb/mon/mon_bin.c:252 mon_bin_get_data drivers/usb/mon/mon_bin.c:420 [inline] mon_bin_event+0x1071/0x2050 drivers/usb/mon/mon_bin.c:606 mon_bus_submit+0xcf/0x140 drivers/usb/mon/mon_main.c:89 usbmon_urb_submit include/linux/usb/hcd.h:724 [inline] usb_hcd_submit_urb+0x12d/0x1c60 drivers/usb/core/hcd.c:1518 usb_submit_urb+0x87c/0x1790 drivers/usb/core/urb.c:581 usb_start_wait_urb+0x104/0x4b0 drivers/usb/core/message.c:59 usb_internal_control_msg drivers/usb/core/message.c:103 [inline] usb_control_msg+0x326/0x4a0 drivers/usb/core/message.c:154 usbhid_set_raw_report drivers/hid/usbhid/hid-core.c:928 [inline] usbhid_raw_request+0x58f/0x700 drivers/hid/usbhid/hid-core.c:1299 __hid_request+0x299/0x3c0 drivers/hid/hid-core.c:1989 hidinput_change_resolution_multipliers drivers/hid/hid-input.c:1950 [inline] hidinput_connect+0x1ada/0x2bd0 drivers/hid/hid-input.c:2327 hid_connect+0x13f3/0x1a60 drivers/hid/hid-core.c:2239 hid_hw_start drivers/hid/hid-core.c:2354 [inline] hid_hw_start+0xaa/0x140 drivers/hid/hid-core.c:2345 ms_probe+0x195/0x500 drivers/hid/hid-microsoft.c:391 __hid_device_probe drivers/hid/hid-core.c:2724 [inline] hid_device_probe+0x363/0x720 drivers/hid/hid-core.c:2761 call_driver_probe drivers/base/dd.c:579 [inline] really_probe+0x241/0xa90 drivers/base/dd.c:657 __driver_probe_device+0x1de/0x440 drivers/base/dd.c:799 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:829 __device_attach_driver+0x1df/0x310 drivers/base/dd.c:957 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:462 __device_attach+0x1e4/0x4b0 drivers/base/dd.c:1029 bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:537 device_add+0x1148/0x1a70 drivers/base/core.c:3692 hid_add_device+0x373/0xa60 drivers/hid/hid-core.c:2907 usbhid_probe+0xd38/0x13f0 drivers/hid/usbhid/hid-core.c:1435 usb_probe_interface+0x300/0x9c0 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:579 [inline] really_probe+0x241/0xa90 drivers/base/dd.c:657 __driver_probe_device+0x1de/0x440 drivers/base/dd.c:799 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:829 __device_attach_driver+0x1df/0x310 drivers/base/dd.c:957 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:462 __device_attach+0x1e4/0x4b0 drivers/base/dd.c:1029 bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:537 device_add+0x1148/0x1a70 drivers/base/core.c:3692 usb_set_configuration+0x1187/0x1e20 drivers/usb/core/message.c:2210 usb_generic_driver_probe+0xb1/0x110 drivers/usb/core/generic.c:250 usb_probe_device+0xec/0x3e0 drivers/usb/core/driver.c:291 call_driver_probe drivers/base/dd.c:579 [inline] really_probe+0x241/0xa90 drivers/base/dd.c:657 __driver_probe_device+0x1de/0x440 drivers/base/dd.c:799 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:829 __device_attach_driver+0x1df/0x310 drivers/base/dd.c:957 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:462 __device_attach+0x1e4/0x4b0 drivers/base/dd.c:1029 bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:537 device_add+0x1148/0x1a70 drivers/base/core.c:3692 usb_new_device+0xd07/0x1a20 drivers/usb/core/hub.c:2663 hub_port_connect drivers/usb/core/hub.c:5535 [inline] hub_port_connect_change drivers/usb/core/hub.c:5675 [inline] port_event drivers/usb/core/hub.c:5835 [inline] hub_event+0x2eb7/0x4fa0 drivers/usb/core/hub.c:5917 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3321 [inline] worker_thread+0x6c8/0xf10 kernel/workqueue.c:3402 kthread+0x3c2/0x780 kernel/kthread.c:464 ret_from_fork+0x5d4/0x6f0 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Allocated by task 5887: kasan_save_stack+0x33/0x60 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 poison_kmalloc_redzone mm/kasan/common.c:377 [inline] __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394 kasan_kmalloc include/linux/kasan.h:260 [inline] __do_kmalloc_node mm/slub.c:4328 [inline] __kmalloc_noprof+0x223/0x510 mm/slub.c:4340 __hid_request+0x2c/0x3c0 drivers/hid/hid-core.c:1980 hidinput_change_resolution_multipliers drivers/hid/hid-input.c:1950 [inline] hidinput_connect+0x1ada/0x2bd0 drivers/hid/hid-input.c:2327 hid_connect+0x13f3/0x1a60 drivers/hid/hid-core.c:2239 hid_hw_start drivers/hid/hid-core.c:2354 [inline] hid_hw_start+0xaa/0x140 drivers/hid/hid-core.c:2345 ms_probe+0x195/0x500 drivers/hid/hid-microsoft.c:391 __hid_device_probe drivers/hid/hid-core.c:2724 [inline] hid_device_probe+0x363/0x720 drivers/hid/hid-core.c:2761 call_driver_probe drivers/base/dd.c:579 [inline] really_probe+0x241/0xa90 drivers/base/dd.c:657 __driver_probe_device+0x1de/0x440 drivers/base/dd.c:799 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:829 __device_attach_driver+0x1df/0x310 drivers/base/dd.c:957 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:462 __device_attach+0x1e4/0x4b0 drivers/base/dd.c:1029 bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:537 device_add+0x1148/0x1a70 drivers/base/core.c:3692 hid_add_device+0x373/0xa60 drivers/hid/hid-core.c:2907 usbhid_probe+0xd38/0x13f0 drivers/hid/usbhid/hid-core.c:1435 usb_probe_interface+0x300/0x9c0 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:579 [inline] really_probe+0x241/0xa90 drivers/base/dd.c:657 __driver_probe_device+0x1de/0x440 drivers/base/dd.c:799 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:829 __device_attach_driver+0x1df/0x310 drivers/base/dd.c:957 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:462 __device_attach+0x1e4/0x4b0 drivers/base/dd.c:1029 bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:537 device_add+0x1148/0x1a70 drivers/base/core.c:3692 usb_set_configuration+0x1187/0x1e20 drivers/usb/core/message.c:2210 usb_generic_driver_probe+0xb1/0x110 drivers/usb/core/generic.c:250 usb_probe_device+0xec/0x3e0 drivers/usb/core/driver.c:291 call_driver_probe drivers/base/dd.c:579 [inline] really_probe+0x241/0xa90 drivers/base/dd.c:657 __driver_probe_device+0x1de/0x440 drivers/base/dd.c:799 driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:829 __device_attach_driver+0x1df/0x310 drivers/base/dd.c:957 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:462 __device_attach+0x1e4/0x4b0 drivers/base/dd.c:1029 bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:537 device_add+0x1148/0x1a70 drivers/base/core.c:3692 usb_new_device+0xd07/0x1a20 drivers/usb/core/hub.c:2663 hub_port_connect drivers/usb/core/hub.c:5535 [inline] hub_port_connect_change drivers/usb/core/hub.c:5675 [inline] port_event drivers/usb/core/hub.c:5835 [inline] hub_event+0x2eb7/0x4fa0 drivers/usb/core/hub.c:5917 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3321 [inline] worker_thread+0x6c8/0xf10 kernel/workqueue.c:3402 kthread+0x3c2/0x780 kernel/kthread.c:464 ret_from_fork+0x5d4/0x6f0 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 The buggy address belongs to the object at ffff8880330e0800 which belongs to the cache kmalloc-8 of size 8 The buggy address is located 1 bytes inside of allocated 7-byte region [ffff8880330e0800, ffff8880330e0807) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x330e0 flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff) page_type: f5(slab) raw: 00fff00000000000 ffff88801b841500 ffffea000085b700 dead000000000002 raw: 0000000000000000 0000000080800080 00000000f5000000 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x52cc0(GFP_KERNEL|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP), pid 1, tgid 1 (init), ts 15743776341, free_ts 15035826353 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1704 prep_new_page mm/page_alloc.c:1712 [inline] get_page_from_freelist+0x1321/0x3890 mm/page_alloc.c:3669 __alloc_frozen_pages_noprof+0x261/0x23f0 mm/page_alloc.c:4959 alloc_pages_mpol+0x1fb/0x550 mm/mempolicy.c:2419 alloc_slab_page mm/slub.c:2451 [inline] allocate_slab mm/slub.c:2619 [inline] new_slab+0x23b/0x330 mm/slub.c:2673 ___slab_alloc+0xd9c/0x1940 mm/slub.c:3859 __slab_alloc.constprop.0+0x56/0xb0 mm/slub.c:3949 __slab_alloc_node mm/slub.c:4024 [inline] slab_alloc_node mm/slub.c:4185 [inline] __do_kmalloc_node mm/slub.c:4327 [inline] __kmalloc_noprof+0x2f2/0x510 mm/slub.c:4340 kmalloc_noprof include/linux/slab.h:909 [inline] str_read+0x58/0x220 security/selinux/ss/policydb.c:1104 genfs_read+0x688/0xe20 security/selinux/ss/policydb.c:2194 policydb_read+0x28de/0x3220 security/selinux/ss/policydb.c:2707 security_load_policy+0x15c/0x12c0 security/selinux/ss/services.c:2305 sel_write_load+0x332/0x1bd0 security/selinux/selinuxfs.c:603 vfs_write+0x29d/0x1150 fs/read_write.c:684 ksys_write+0x12a/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94 page last free pid 1 tgid 1 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1248 [inline] __free_frozen_pages+0x7fe/0x1180 mm/page_alloc.c:2706 kasan_depopulate_vmalloc_pte+0x5f/0x80 mm/kasan/shadow.c:472 apply_to_pte_range mm/memory.c:3032 [inline] apply_to_pmd_range mm/memory.c:3076 [inline] apply_to_pud_range mm/memory.c:3112 [inline] apply_to_p4d_range mm/memory.c:3148 [inline] __apply_to_page_range+0xa92/0x1350 mm/memory.c:3184 kasan_release_vmalloc+0xd1/0xe0 mm/kasan/shadow.c:593 kasan_release_vmalloc_node mm/vmalloc.c:2241 [inline] purge_vmap_node+0x1c4/0xa30 mm/vmalloc.c:2258 __purge_vmap_area_lazy+0xa06/0xc60 mm/vmalloc.c:2348 _vm_unmap_aliases+0x43b/0x670 mm/vmalloc.c:2943 change_page_attr_set_clr+0x252/0x4a0 arch/x86/mm/pat/set_memory.c:2088 change_page_attr_set arch/x86/mm/pat/set_memory.c:2129 [inline] set_memory_nx+0xb5/0x110 arch/x86/mm/pat/set_memory.c:2318 free_init_pages+0x79/0xd0 arch/x86/mm/init.c:933 free_kernel_image_pages+0x24/0x50 arch/x86/mm/init.c:952 kernel_init+0x30/0x2b0 init/main.c:1483 ret_from_fork+0x5d4/0x6f0 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 Memory state around the buggy address: ffff8880330e0700: 00 fc fc fc 04 fc fc fc 06 fc fc fc 06 fc fc fc ffff8880330e0780: 05 fc fc fc 05 fc fc fc 05 fc fc fc 00 fc fc fc >ffff8880330e0800: 07 fc fc fc fa fc fc fc 05 fc fc fc fa fc fc fc ^ ffff8880330e0880: 06 fc fc fc 05 fc fc fc 05 fc fc fc fa fc fc fc ffff8880330e0900: fa fc fc fc fa fc fc fc fa fc fc fc 05 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 report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup