[syzbot] [bluetooth?] WARNING: ODEBUG bug in hci_release_dev (2)

Hello,

syzbot found the following issue on:

HEAD commit: d7e78951a8b8 Merge tag 'net-6.11-rc0' of git://git.kernel...
git tree: net-next
console output: https://syzkaller.appspot.com/x/log.txt?x=105a2f31980000
kernel config: https://syzkaller.appspot.com/x/.config?x=8d1cf7c29e32ce12
dashboard link: https://syzkaller.appspot.com/bug?extid=b170dbf55520ebf5969a
compiler: Debian clang version 15.0.6, 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/3c208b51873e/disk-d7e78951.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/adec146cf41c/vmlinux-d7e78951.xz
kernel image: https://storage.googleapis.com/syzbot-assets/52f09b8f7356/bzImage-d7e78951.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: [email protected]

------------[ cut here ]------------
ODEBUG: free active (active state 0) object: ffff888042b68978 object type: timer_list hint: hci_cmd_timeout+0x0/0x1e0
WARNING: CPU: 0 PID: 12907 at lib/debugobjects.c:518 debug_print_object+0x17a/0x1f0 lib/debugobjects.c:515
Modules linked in:
CPU: 0 PID: 12907 Comm: syz-executor Not tainted 6.10.0-syzkaller-09703-gd7e78951a8b8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:debug_print_object+0x17a/0x1f0 lib/debugobjects.c:515
Code: e8 1b 7f 42 fd 4c 8b 0b 48 c7 c7 c0 72 20 8c 48 8b 74 24 08 48 89 ea 44 89 e1 4d 89 f8 ff 34 24 e8 db 5b 9e fc 48 83 c4 08 90 <0f> 0b 90 90 ff 05 fc 35 f8 0a 48 83 c4 10 5b 41 5c 41 5d 41 5e 41
RSP: 0018:ffffc9000e6bf838 EFLAGS: 00010282
RAX: da48afca993a8400 RBX: ffffffff8bccb720 RCX: ffff888030a8da00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffffff8c207440 R08: ffffffff815565a2 R09: fffffbfff1c39f60
R10: dffffc0000000000 R11: fffffbfff1c39f60 R12: 0000000000000000
R13: ffffffff8c207358 R14: dffffc0000000000 R15: ffff888042b68978
FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0d8f907a6c CR3: 000000000e134000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
__debug_check_no_obj_freed lib/debugobjects.c:990 [inline]
debug_check_no_obj_freed+0x45b/0x580 lib/debugobjects.c:1020
slab_free_hook mm/slub.c:2202 [inline]
slab_free mm/slub.c:4464 [inline]
kfree+0x10f/0x360 mm/slub.c:4585
hci_release_dev+0x1525/0x16b0 net/bluetooth/hci_core.c:2760
bt_host_release+0x83/0x90 net/bluetooth/hci_sysfs.c:94
device_release+0x99/0x1c0
kobject_cleanup lib/kobject.c:689 [inline]
kobject_release lib/kobject.c:720 [inline]
kref_put include/linux/kref.h:65 [inline]
kobject_put+0x22f/0x480 lib/kobject.c:737
vhci_release+0x8b/0xd0 drivers/bluetooth/hci_vhci.c:667
__fput+0x24a/0x8a0 fs/file_table.c:422
task_work_run+0x24f/0x310 kernel/task_work.c:222
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0xa2f/0x27f0 kernel/exit.c:877
do_group_exit+0x207/0x2c0 kernel/exit.c:1026
__do_sys_exit_group kernel/exit.c:1037 [inline]
__se_sys_exit_group kernel/exit.c:1035 [inline]
__x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1035
x64_sys_call+0x26c3/0x26d0 arch/x86/include/generated/asm/syscalls_64.h:232
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbfd8775b59
Code: Unable to access opcode bytes at 0x7fbfd8775b2f.
RSP: 002b:00007ffda750f638 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007fbfd87e4a82 RCX: 00007fbfd8775b59
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000043
RBP: 00007fbfd87e4a94 R08: 00007ffda750d3d7 R09: 0000000000000bb8
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000006
R13: 0000000000000bb8 R14: 000000000003e8dd R15: 000000000003e8ae
</TASK>


---
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 [email protected].

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

syzbot has found a reproducer for the following issue on:

HEAD commit: 0b84db5d8f25 MAINTAINERS: add Andrew Lunn as a co-maintain..
git tree: net
console output: https://syzkaller.appspot.com/x/log.txt?x=10505727980000
kernel config: https://syzkaller.appspot.com/x/.config?x=7cd9e7e4a8a0a15b
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16f84030580000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/bd00feb30432/disk-0b84db5d.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/e39e30a1ae6d/vmlinux-0b84db5d.xz
kernel image: https://storage.googleapis.com/syzbot-assets/87eafcdafd48/bzImage-0b84db5d.xz
ODEBUG: free active (active state 0) object: ffff88806c380978 object type: timer_list hint: hci_cmd_timeout+0x0/0x1e0
WARNING: CPU: 1 PID: 11255 at lib/debugobjects.c:517 debug_print_object+0x17a/0x1f0 lib/debugobjects.c:514
Modules linked in:
CPU: 1 UID: 0 PID: 11255 Comm: syz.1.2889 Not tainted 6.12.0-rc2-syzkaller-00216-g0b84db5d8f25 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:debug_print_object+0x17a/0x1f0 lib/debugobjects.c:514
Code: e8 5b 1a 3c fd 4c 8b 0b 48 c7 c7 e0 04 61 8c 48 8b 74 24 08 48 89 ea 44 89 e1 4d 89 f8 ff 34 24 e8 db 63 93 fc 48 83 c4 08 90 <0f> 0b 90 90 ff 05 64 a7 5a 0b 48 83 c4 10 5b 41 5c 41 5d 41 5e 41
RSP: 0018:ffffc90003e17818 EFLAGS: 00010286
RAX: b20dce31d0d23300 RBX: ffffffff8c0cd900 RCX: ffff88807aa40000
RBP: ffffffff8c610660 R08: ffffffff8155e402 R09: fffffbfff1cf9fd8
R10: dffffc0000000000 R11: fffffbfff1cf9fd8 R12: 0000000000000000
R13: ffffffff8c610578 R14: dffffc0000000000 R15: ffff88806c380978
FS: 00007fd4093cf6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CR2: 00007f55ce736000 CR3: 0000000074a94000 CR4: 00000000003526f0
__debug_check_no_obj_freed lib/debugobjects.c:989 [inline]
debug_check_no_obj_freed+0x45b/0x580 lib/debugobjects.c:1019
slab_free_hook mm/slub.c:2273 [inline]
slab_free mm/slub.c:4579 [inline]
kfree+0x11f/0x440 mm/slub.c:4727
hci_release_dev+0x1525/0x16b0 net/bluetooth/hci_core.c:2759
hci_dev_put include/net/bluetooth/hci_core.h:1581 [inline]
hci_dev_cmd+0x296/0xa50 net/bluetooth/hci_core.c:763
sock_do_ioctl+0x158/0x460 net/socket.c:1227
sock_ioctl+0x626/0x8e0 net/socket.c:1346
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:907 [inline]
__se_sys_ioctl+0xf9/0x170 fs/ioctl.c:893
RIP: 0033:0x7fd40857dff9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd4093cf038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fd408735f80 RCX: 00007fd40857dff9
RDX: 0000000020000240 RSI: 00000000400448dd RDI: 0000000000000004
RBP: 00007fd4085f0296 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fd408735f80 R15: 00007ffd5284c118
</TASK>


---
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.

syzbot has found a reproducer for the following issue on:

HEAD commit: 499551201b5f Merge tag 'arm64-fixes' of git://git.kernel.o..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=17916f30580000
kernel config: https://syzkaller.appspot.com/x/.config?x=c22efbd20f8da769
dashboard link: https://syzkaller.appspot.com/bug?extid=b170dbf55520ebf5969a
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=1090c0c4580000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10a1efe8580000

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/5ee1fc255de9/disk-49955120.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/24f10c9fac9a/vmlinux-49955120.xz
kernel image: https://storage.googleapis.com/syzbot-assets/211e35102c2e/bzImage-49955120.xz
ODEBUG: free active (active state 0) object: ffff888033d51248 object type: timer_list hint: hci_devcd_timeout+0x0/0x2f0 include/linux/skbuff.h:2741
WARNING: CPU: 1 PID: 5828 at lib/debugobjects.c:612 debug_print_object+0x1a2/0x2b0 lib/debugobjects.c:612
Modules linked in:
CPU: 1 UID: 0 PID: 5828 Comm: syz-executor344 Not tainted 6.13.0-rc3-syzkaller-00209-g499551201b5f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:debug_print_object+0x1a2/0x2b0 lib/debugobjects.c:612
Code: fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 54 48 8b 14 dd a0 7f b1 8b 41 56 4c 89 e6 48 c7 c7 20 74 b1 8b e8 4f 59 bc fc 90 <0f> 0b 90 90 58 83 05 b6 5a 7f 0b 01 48 83 c4 18 5b 5d 41 5c 41 5d
RSP: 0018:ffffc90003faf768 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000003 RCX: ffffffff815a16c9
RDX: ffff888028419e00 RSI: ffffffff815a16d6 RDI: 0000000000000001
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffffffff8bb17ac0
R13: ffffffff8b4f8020 R14: ffffffff8a2ad340 R15: ffffc90003faf878
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CR2: 000055f6d80ebeb8 CR3: 000000007c30e000 CR4: 00000000003526f0
__debug_check_no_obj_freed lib/debugobjects.c:1099 [inline]
debug_check_no_obj_freed+0x4b7/0x600 lib/debugobjects.c:1129
slab_free_hook mm/slub.c:2284 [inline]
slab_free mm/slub.c:4613 [inline]
kfree+0x2b3/0x4b0 mm/slub.c:4761
hci_release_dev+0x4d9/0x600 net/bluetooth/hci_core.c:2758
bt_host_release+0x6a/0xb0 net/bluetooth/hci_sysfs.c:87
device_release+0xa1/0x240 drivers/base/core.c:2567
kobject_put+0x1e4/0x5a0 lib/kobject.c:737
put_device+0x1f/0x30 drivers/base/core.c:3773
vhci_release+0x81/0xf0 drivers/bluetooth/hci_vhci.c:665
__fput+0x3f8/0xb60 fs/file_table.c:450
task_work_run+0x14e/0x250 kernel/task_work.c:239
exit_task_work include/linux/task_work.h:43 [inline]
do_exit+0xad8/0x2d70 kernel/exit.c:938
do_group_exit+0xd3/0x2a0 kernel/exit.c:1087
get_signal+0x2576/0x2610 kernel/signal.c:3017
arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x150/0x2a0 kernel/entry/common.c:218
do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f977f68926a
Code: Unable to access opcode bytes at 0x7f977f689240.
RSP: 002b:00007ffc28c89690 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f977f68926a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007f977f6e1049 R09: 00007f977f6e1049
R10: 0000000000008000 R11: 0000000000000293 R12: 00007f977f6e1049
R13: 00007ffc28c896e0 R14: 00007ffc28c89720 R15: 0000000000000000