Hello, syzbot found the following issue on: HEAD commit: 603c04e27c3e Merge tag 'parisc-for-6.8-rc6' of git://git.k.. git tree: upstream console+strace: https://syzkaller.appspot.com/x/log.txt?x=12d065aa180000 kernel config: https://syzkaller.appspot.com/x/.config?x=eff9f3183d0a20dd dashboard link: https://syzkaller.appspot.com/bug?extid=b2545b087a01a7319474 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=17960122180000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15d70222180000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/ffe1f52b2e32/disk-603c04e2.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/76775e0b335d/vmlinux-603c04e2.xz kernel image: https://storage.googleapis.com/syzbot-assets/8cd3c1c87eef/bzImage-603c04e2.xz The issue was bisected to: commit 181a42edddf51d5d9697ecdf365d72ebeab5afb0 Author: Ziyang Xuan <william.xuanziyang@xxxxxxxxxx> Date: Wed Oct 11 09:57:31 2023 +0000 Bluetooth: Make handle of hci_conn be unique bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1357945c180000 final oops: https://syzkaller.appspot.com/x/report.txt?x=10d7945c180000 console output: https://syzkaller.appspot.com/x/log.txt?x=1757945c180000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+b2545b087a01a7319474@xxxxxxxxxxxxxxxxxxxxxxxxx Fixes: 181a42edddf5 ("Bluetooth: Make handle of hci_conn be unique") ------------[ cut here ]------------ ida_free called for id=8192 which is not allocated. WARNING: CPU: 1 PID: 5074 at lib/idr.c:525 ida_free+0x370/0x420 lib/idr.c:525 Modules linked in: CPU: 1 PID: 5074 Comm: syz-executor104 Not tainted 6.8.0-rc5-syzkaller-00278-g603c04e27c3e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 RIP: 0010:ida_free+0x370/0x420 lib/idr.c:525 Code: 10 42 80 3c 28 00 74 05 e8 8d 4b 9b f6 48 8b 7c 24 40 4c 89 fe e8 a0 89 17 00 90 48 c7 c7 80 cd c5 8c 89 de e8 21 32 fd f5 90 <0f> 0b 90 90 eb 3d e8 45 27 39 f6 49 bd 00 00 00 00 00 fc ff df 4d RSP: 0018:ffffc900039ef920 EFLAGS: 00010246 RAX: 59cbf4b1e8f11a00 RBX: 0000000000002000 RCX: ffff88802da20000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc900039efa18 R08: ffffffff81577ab2 R09: 1ffff110172a51a2 R10: dffffc0000000000 R11: ffffed10172a51a3 R12: ffffc900039ef960 R13: dffffc0000000000 R14: ffff88801e3ec0a0 R15: 0000000000000246 FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f78fc079f08 CR3: 000000002db8e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> hci_conn_cleanup net/bluetooth/hci_conn.c:157 [inline] hci_conn_del+0x7c0/0xcb0 net/bluetooth/hci_conn.c:1188 hci_conn_hash_flush+0x18e/0x240 net/bluetooth/hci_conn.c:2646 hci_dev_close_sync+0x9ab/0xff0 net/bluetooth/hci_sync.c:4954 hci_dev_do_close net/bluetooth/hci_core.c:554 [inline] hci_unregister_dev+0x1e3/0x4e0 net/bluetooth/hci_core.c:2739 vhci_release+0x83/0xd0 drivers/bluetooth/hci_vhci.c:674 __fput+0x429/0x8a0 fs/file_table.c:376 task_work_run+0x24e/0x310 kernel/task_work.c:180 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0xa2c/0x2740 kernel/exit.c:871 do_group_exit+0x206/0x2c0 kernel/exit.c:1020 __do_sys_exit_group kernel/exit.c:1031 [inline] __se_sys_exit_group kernel/exit.c:1029 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1029 do_syscall_64+0xf9/0x240 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7f78fc021449 Code: Unable to access opcode bytes at 0x7f78fc02141f. RSP: 002b:00007ffd8ebe2238 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f78fc021449 RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 RBP: 00007f78fc0ad2b0 R08: ffffffffffffffb0 R09: 000000ff00ff4650 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f78fc0ad2b0 R13: 0000000000000000 R14: 00007f78fc0add00 R15: 00007f78fbfef4e0 </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 syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. For information about bisection process see: https://goo.gl/tpsmEJ#bisection If the report is already addressed, 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 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
