From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oo1-f79.google.com (mail-oo1-f79.google.com [209.85.161.79]) (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 83B914734FE for ; Tue, 28 Jul 2026 14:59:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.161.79 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785250769; cv=none; b=MY/6Z1ObsEA5y05Qj5LZv3QzIdXK1YLT+fzxW5isoy6BmcIicgLdFv/lakJJBNtRbIYhnXGEIsylpU17QT6o4Gj9HXEbRmFulQf0d+pzr5l8gn60f2qAfE5bjj48E+DsIKNtqN6I59GpSsMEZCcReVXFoco55PboiG6jcaRKsfQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785250769; c=relaxed/simple; bh=AAsIzM06UMv13t0/NK0q+1Uol6xaO74vWwa1J2XaGIY=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=ETrjhLZciF+MKdRFNnT3fyjEZZbUSk8bUj6wnnpUAWMghLKtHlw7KhTopH8SQgcf8OFI7lKd5YaAO9OEovy/Ljg1rOkDMfuiF0u43uebCCdlbzukzKXo0dCM7BlNhFv+VUUSjGFOeM4DhYmy1zpHv9UTJAk5tqiGuVT1VEqfZcY= 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=209.85.161.79 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-oo1-f79.google.com with SMTP id 006d021491bc7-6a0f261aeb6so4319333eaf.3 for ; Tue, 28 Jul 2026 07:59:24 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1785250763; x=1785855563; h=content-type:to:from:subject:message-id:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=zOn/yg4op/Dbm8IAHVQc6EfBdxxP9a6baTQhLDmv9Mg=; b=dzzoGVCQeZ/RpEPjaXbDvdu/+9YjMnpBtNqnlS5HhteMDbDR27jcQnvfjjcMq+sOkf CE8KnWg8bYFnOKDUczPTb1ko4CQA99Ao2f+k/CLcpu7PKVgL3W5UIDusFhC4SBkIrP+3 qORDU4M7sPAVoyC6uFluN9dKjh6ucog8w0CGRdI7XSgoHmg7pauGInqcJ+NEAQFqnNz9 W/srkzRmWTW4NlN/yH4C20rmEfwmczan76HG5wdeJrIsH+iNiVI35ABC7iV8cPCyZ1xB szn+g5VqVF3kH97kdG3CC3X/XV8vzpp459SPPbAu1kVLQLVBXW6PAFAZms85alx+ktzi kasw== X-Forwarded-Encrypted: i=1; AHgh+RoejG5H6iaqB6ZNx4M9RUPDEHTWGdlPbxitQFlWDHJYUrAxbnlD7BhdxczA7GVFPC5kuJZEORyABJfh3A==@vger.kernel.org X-Gm-Message-State: AOJu0YzYZu6TLEgwr8oMIU+4eVPf/f+2wSfoj0kpxs6z9i0eUdISfYMR XI98OYfKm9bOuXeqxA4asJ9f3PziBTFTjyVjvba/RJnqrEWxSL00Qxi39csUZojpqDuO92X6W0j GQTMnv0Rey/YlDTDf4BlH6/9bSpTs2GRoFnXSSNIw+W09hBmrZ1RAw6mputU= Precedence: bulk X-Mailing-List: linux-sound@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6820:168d:b0:6a3:77e0:84b with SMTP id 006d021491bc7-6ac96db54c1mr1422802eaf.60.1785250763495; Tue, 28 Jul 2026 07:59:23 -0700 (PDT) Date: Tue, 28 Jul 2026 07:59:23 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6a68c3cb.e3659fcc.2a40b8.0014.GAE@google.com> Subject: [syzbot] [sound?] KASAN: invalid-free in snd_rawmidi_free From: syzbot To: linux-kernel@vger.kernel.org, linux-sound@vger.kernel.org, perex@perex.cz, syzkaller-bugs@googlegroups.com, tiwai@suse.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 48a5a7ab8d6a Merge tag 'v7.2-rc4-smb3-client-fixes' of git.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=10edc499580000 kernel config: https://syzkaller.appspot.com/x/.config?x=20c9876b0f77b546 dashboard link: https://syzkaller.appspot.com/bug?extid=b6cab840e6a85641c7ad compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/d900f083ada3/non_bootable_disk-48a5a7ab.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/cca5551ec121/vmlinux-48a5a7ab.xz kernel image: https://storage.googleapis.com/syzbot-assets/30b6e710a3ae/bzImage-48a5a7ab.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+b6cab840e6a85641c7ad@syzkaller.appspotmail.com FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 1 CPU: 0 UID: 0 PID: 5324 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 fail_dump lib/fault-inject.c:73 [inline] should_fail_ex+0x40c/0x560 lib/fault-inject.c:174 should_failslab+0xa8/0x100 mm/failslab.c:46 slab_pre_alloc_hook mm/slub.c:4567 [inline] slab_alloc_node mm/slub.c:4925 [inline] __kmalloc_cache_noprof+0xa8/0x660 mm/slub.c:5511 _kmalloc_noprof include/linux/slab.h:969 [inline] _kzalloc_noprof include/linux/slab.h:1290 [inline] snd_rawmidi_new+0x92/0x140 sound/core/rawmidi.c:1894 snd_ump_attach_legacy_rawmidi+0x44e/0x8c0 sound/core/ump.c:1363 f_midi2_create_card drivers/usb/gadget/function/f_midi2.c:1605 [inline] f_midi2_bind+0x11c5/0x2c40 drivers/usb/gadget/function/f_midi2.c:1948 usb_add_function+0x2e1/0x9f0 drivers/usb/gadget/composite.c:333 configfs_composite_bind+0xde0/0x1410 drivers/usb/gadget/configfs.c:1802 gadget_bind_driver+0x2ca/0x9e0 drivers/usb/gadget/udc/core.c:1662 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x254/0xae0 drivers/base/dd.c:706 __driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868 driver_probe_device+0x4f/0x240 drivers/base/dd.c:898 __driver_attach+0x339/0x600 drivers/base/dd.c:1292 bus_for_each_dev+0x23b/0x2c0 drivers/base/bus.c:383 bus_add_driver+0x345/0x670 drivers/base/bus.c:763 driver_register+0x23a/0x320 drivers/base/driver.c:174 usb_gadget_register_driver_owner+0xf9/0x270 drivers/usb/gadget/udc/core.c:1752 gadget_dev_desc_UDC_store+0x1c9/0x2f0 drivers/usb/gadget/configfs.c:300 flush_write_buffer fs/configfs/file.c:207 [inline] configfs_write_iter+0x337/0x430 fs/configfs/file.c:229 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x612/0xba0 fs/read_write.c:687 ksys_write+0x150/0x270 fs/read_write.c:739 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f7aaef9de99 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f7aafe09fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f7aaf225fa0 RCX: 00007f7aaef9de99 RDX: 000000000000000b RSI: 0000200000000940 RDI: 000000000000000a RBP: 00007f7aafe0a050 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007f7aaf226038 R14: 00007f7aaf225fa0 R15: 00007ffdb2f50ea8 ================================================================== BUG: KASAN: double-free in snd_rawmidi_free+0x3cb/0x420 sound/core/rawmidi.c:1934 Free of addr ffff8880342b6000 by task syz.0.0/5324 CPU: 0 UID: 0 PID: 5324 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 print_address_description+0x55/0x1e0 mm/kasan/report.c:378 print_report+0x58/0x70 mm/kasan/report.c:482 kasan_report_invalid_free+0xea/0x110 mm/kasan/report.c:557 check_slab_allocation mm/kasan/common.c:-1 [inline] __kasan_slab_pre_free+0x104/0x120 mm/kasan/common.c:261 kasan_slab_pre_free include/linux/kasan.h:199 [inline] slab_free_hook mm/slub.c:2650 [inline] slab_free mm/slub.c:6405 [inline] kfree+0x173/0x640 mm/slub.c:6720 snd_rawmidi_free+0x3cb/0x420 sound/core/rawmidi.c:1934 snd_rawmidi_dev_free+0x38/0x50 sound/core/rawmidi.c:1945 __snd_device_free sound/core/device.c:76 [inline] snd_device_free_all+0x2c7/0x7a0 sound/core/device.c:233 snd_card_do_free sound/core/init.c:592 [inline] release_card_device+0x75/0x1b0 sound/core/init.c:153 device_release+0xc4/0x1f0 drivers/base/core.c:-1 kobject_cleanup lib/kobject.c:689 [inline] kobject_release lib/kobject.c:720 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x222/0x550 lib/kobject.c:737 f_midi2_free_card drivers/usb/gadget/function/f_midi2.c:1516 [inline] f_midi2_create_card drivers/usb/gadget/function/f_midi2.c:1623 [inline] f_midi2_bind+0x1441/0x2c40 drivers/usb/gadget/function/f_midi2.c:1948 usb_add_function+0x2e1/0x9f0 drivers/usb/gadget/composite.c:333 configfs_composite_bind+0xde0/0x1410 drivers/usb/gadget/configfs.c:1802 gadget_bind_driver+0x2ca/0x9e0 drivers/usb/gadget/udc/core.c:1662 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x254/0xae0 drivers/base/dd.c:706 __driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868 driver_probe_device+0x4f/0x240 drivers/base/dd.c:898 __driver_attach+0x339/0x600 drivers/base/dd.c:1292 bus_for_each_dev+0x23b/0x2c0 drivers/base/bus.c:383 bus_add_driver+0x345/0x670 drivers/base/bus.c:763 driver_register+0x23a/0x320 drivers/base/driver.c:174 usb_gadget_register_driver_owner+0xf9/0x270 drivers/usb/gadget/udc/core.c:1752 gadget_dev_desc_UDC_store+0x1c9/0x2f0 drivers/usb/gadget/configfs.c:300 flush_write_buffer fs/configfs/file.c:207 [inline] configfs_write_iter+0x337/0x430 fs/configfs/file.c:229 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x612/0xba0 fs/read_write.c:687 ksys_write+0x150/0x270 fs/read_write.c:739 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f7aaef9de99 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f7aafe09fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f7aaf225fa0 RCX: 00007f7aaef9de99 RDX: 000000000000000b RSI: 0000200000000940 RDI: 000000000000000a RBP: 00007f7aafe0a050 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000002 R13: 00007f7aaf226038 R14: 00007f7aaf225fa0 R15: 00007ffdb2f50ea8 Allocated by task 5324: kasan_save_stack mm/kasan/common.c:57 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:78 poison_kmalloc_redzone mm/kasan/common.c:398 [inline] __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:415 kasan_kmalloc include/linux/kasan.h:263 [inline] __kmalloc_cache_noprof+0x32d/0x660 mm/slub.c:5515 _kmalloc_noprof include/linux/slab.h:969 [inline] _kzalloc_noprof include/linux/slab.h:1290 [inline] snd_ump_attach_legacy_rawmidi+0xb3/0x8c0 sound/core/ump.c:1355 f_midi2_create_card drivers/usb/gadget/function/f_midi2.c:1605 [inline] f_midi2_bind+0x11c5/0x2c40 drivers/usb/gadget/function/f_midi2.c:1948 usb_add_function+0x2e1/0x9f0 drivers/usb/gadget/composite.c:333 configfs_composite_bind+0xde0/0x1410 drivers/usb/gadget/configfs.c:1802 gadget_bind_driver+0x2ca/0x9e0 drivers/usb/gadget/udc/core.c:1662 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x254/0xae0 drivers/base/dd.c:706 __driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868 driver_probe_device+0x4f/0x240 drivers/base/dd.c:898 __driver_attach+0x339/0x600 drivers/base/dd.c:1292 bus_for_each_dev+0x23b/0x2c0 drivers/base/bus.c:383 bus_add_driver+0x345/0x670 drivers/base/bus.c:763 driver_register+0x23a/0x320 drivers/base/driver.c:174 usb_gadget_register_driver_owner+0xf9/0x270 drivers/usb/gadget/udc/core.c:1752 gadget_dev_desc_UDC_store+0x1c9/0x2f0 drivers/usb/gadget/configfs.c:300 flush_write_buffer fs/configfs/file.c:207 [inline] configfs_write_iter+0x337/0x430 fs/configfs/file.c:229 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x612/0xba0 fs/read_write.c:687 ksys_write+0x150/0x270 fs/read_write.c:739 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f Freed by task 5324: kasan_save_stack mm/kasan/common.c:57 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:78 kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:584 poison_slab_object mm/kasan/common.c:253 [inline] __kasan_slab_free+0x5c/0x80 mm/kasan/common.c:285 kasan_slab_free include/linux/kasan.h:235 [inline] slab_free_hook mm/slub.c:2705 [inline] slab_free mm/slub.c:6405 [inline] kfree+0x1c5/0x640 mm/slub.c:6720 snd_ump_attach_legacy_rawmidi+0x4c3/0x8c0 sound/core/ump.c:1367 f_midi2_create_card drivers/usb/gadget/function/f_midi2.c:1605 [inline] f_midi2_bind+0x11c5/0x2c40 drivers/usb/gadget/function/f_midi2.c:1948 usb_add_function+0x2e1/0x9f0 drivers/usb/gadget/composite.c:333 configfs_composite_bind+0xde0/0x1410 drivers/usb/gadget/configfs.c:1802 gadget_bind_driver+0x2ca/0x9e0 drivers/usb/gadget/udc/core.c:1662 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x254/0xae0 drivers/base/dd.c:706 __driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868 driver_probe_device+0x4f/0x240 drivers/base/dd.c:898 __driver_attach+0x339/0x600 drivers/base/dd.c:1292 bus_for_each_dev+0x23b/0x2c0 drivers/base/bus.c:383 bus_add_driver+0x345/0x670 drivers/base/bus.c:763 driver_register+0x23a/0x320 drivers/base/driver.c:174 usb_gadget_register_driver_owner+0xf9/0x270 drivers/usb/gadget/udc/core.c:1752 gadget_dev_desc_UDC_store+0x1c9/0x2f0 drivers/usb/gadget/configfs.c:300 flush_write_buffer fs/configfs/file.c:207 [inline] configfs_write_iter+0x337/0x430 fs/configfs/file.c:229 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x612/0xba0 fs/read_write.c:687 ksys_write+0x150/0x270 fs/read_write.c:739 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f The buggy address belongs to the object at ffff8880342b6000 which belongs to the cache kmalloc-4k of size 4096 The buggy address is located 0 bytes inside of 4096-byte region [ffff8880342b6000, ffff8880342b7000) The buggy address belongs to the physical page: page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x342b0 head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 flags: 0x4fff00000000040(head|node=1|zone=1|lastcpupid=0x7ff) page_type: f5(slab) raw: 04fff00000000040 ffff88801b042140 dead000000000100 dead000000000122 raw: 0000000000000000 0000000800040004 00000000f5000000 0000000000000000 head: 04fff00000000040 ffff88801b042140 dead000000000100 dead000000000122 head: 0000000000000000 0000000800040004 00000000f5000000 0000000000000000 head: 04fff00000000003 fffffffffffffe01 00000000ffffffff 00000000ffffffff head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 1, tgid 1 (swapper/0), ts 22281528312, free_ts 22268577245 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1859 prep_new_page mm/page_alloc.c:1867 [inline] get_page_from_freelist+0x21fa/0x2270 mm/page_alloc.c:3946 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5304 alloc_slab_page mm/slub.c:3294 [inline] allocate_slab+0x79/0x5e0 mm/slub.c:3408 new_slab mm/slub.c:3454 [inline] refill_objects+0x2d5/0x350 mm/slub.c:7338 refill_sheaf mm/slub.c:2832 [inline] __pcs_replace_empty_main+0x2bf/0x6b0 mm/slub.c:4703 alloc_from_pcs mm/slub.c:4801 [inline] slab_alloc_node mm/slub.c:4933 [inline] __kmalloc_cache_noprof+0x3a7/0x660 mm/slub.c:5511 _kmalloc_noprof include/linux/slab.h:969 [inline] _kzalloc_noprof include/linux/slab.h:1290 [inline] kobject_uevent_env+0x289/0x9e0 lib/kobject_uevent.c:543 device_add+0x544/0xb80 drivers/base/core.c:3738 __video_register_device+0x3bd7/0x4a90 drivers/media/v4l2-core/v4l2-dev.c:1081 video_register_device include/media/v4l2-dev.h:390 [inline] vivid_create_devnodes+0x1f7c/0x2c60 drivers/media/test-drivers/vivid/vivid-core.c:1679 vivid_create_instance drivers/media/test-drivers/vivid/vivid-core.c:2042 [inline] vivid_probe+0x5038/0x70c0 drivers/media/test-drivers/vivid/vivid-core.c:2095 platform_probe+0xf9/0x190 drivers/base/platform.c:1439 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x254/0xae0 drivers/base/dd.c:706 __driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868 driver_probe_device+0x4f/0x240 drivers/base/dd.c:898 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:1406 [inline] __free_frozen_pages+0xc1e/0xd10 mm/page_alloc.c:2950 __slab_free+0x274/0x2c0 mm/slub.c:5767 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4612 [inline] slab_alloc_node mm/slub.c:4945 [inline] __kmalloc_cache_noprof+0x2ab/0x660 mm/slub.c:5511 _kmalloc_noprof include/linux/slab.h:969 [inline] _kzalloc_noprof include/linux/slab.h:1290 [inline] media_devnode_create+0x60/0x380 drivers/media/mc/mc-entity.c:1550 video_register_media_controller drivers/media/v4l2-core/v4l2-dev.c:881 [inline] __video_register_device+0x4160/0x4a90 drivers/media/v4l2-core/v4l2-dev.c:1094 video_register_device include/media/v4l2-dev.h:390 [inline] vivid_create_devnodes+0x12cb/0x2c60 drivers/media/test-drivers/vivid/vivid-core.c:1632 vivid_create_instance drivers/media/test-drivers/vivid/vivid-core.c:2042 [inline] vivid_probe+0x5038/0x70c0 drivers/media/test-drivers/vivid/vivid-core.c:2095 platform_probe+0xf9/0x190 drivers/base/platform.c:1439 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x254/0xae0 drivers/base/dd.c:706 __driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868 driver_probe_device+0x4f/0x240 drivers/base/dd.c:898 __driver_attach+0x339/0x600 drivers/base/dd.c:1292 bus_for_each_dev+0x23b/0x2c0 drivers/base/bus.c:383 Memory state around the buggy address: ffff8880342b5f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ffff8880342b5f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc >ffff8880342b6000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff8880342b6080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff8880342b6100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ================================================================== --- This report is generated by a bot. 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