Hello, syzbot found the following issue on: HEAD commit: 2bd87951de65 Merge git://git.kernel.org/pub/scm/linux/kern.. git tree: net-next console output: https://syzkaller.appspot.com/x/log.txt?x=1655ccef180000 kernel config: https://syzkaller.appspot.com/x/.config?x=5ced800a6af0f5b0 dashboard link: https://syzkaller.appspot.com/bug?extid=3e07a461b836821ff70e 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/167fa7ed263b/disk-2bd87951.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/d5451b036870/vmlinux-2bd87951.xz kernel image: https://storage.googleapis.com/syzbot-assets/a0d784e076f2/bzImage-2bd87951.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+3e07a461b836821ff70e@xxxxxxxxxxxxxxxxxxxxxxxxx ------------[ cut here ]------------ WARNING: CPU: 0 PID: 14307 at kernel/workqueue.c:2322 __queue_work+0xc6c/0xef0 kernel/workqueue.c:2321 Modules linked in: CPU: 0 PID: 14307 Comm: syz-executor.2 Not tainted 6.9.0-rc5-syzkaller-01160-g2bd87951de65 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:__queue_work+0xc6c/0xef0 kernel/workqueue.c:2321 Code: ff e8 48 38 36 00 90 0f 0b 90 e9 20 fd ff ff e8 3a 38 36 00 eb 13 e8 33 38 36 00 eb 0c e8 2c 38 36 00 eb 05 e8 25 38 36 00 90 <0f> 0b 90 48 83 c4 68 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc RSP: 0018:ffffc900034f78a0 EFLAGS: 00010093 RAX: ffffffff815fc90d RBX: ffff88802a579e00 RCX: ffff88802a579e00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff815fbdd3 R09: 1ffff1100f64b9ac R10: dffffc0000000000 R11: ffffed100f64b9ad R12: ffff888068ebd9c0 R13: dffffc0000000000 R14: ffff888068ebd800 R15: 0000000000000008 FS: 000055557f1bb480(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0909aba170 CR3: 0000000079f8e000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> queue_work_on+0x14f/0x250 kernel/workqueue.c:2435 queue_work include/linux/workqueue.h:605 [inline] hci_recv_frame+0x489/0x610 net/bluetooth/hci_core.c:2998 vhci_get_user drivers/bluetooth/hci_vhci.c:521 [inline] vhci_write+0x35a/0x480 drivers/bluetooth/hci_vhci.c:617 do_iter_readv_writev+0x5a4/0x800 vfs_writev+0x395/0xbb0 fs/read_write.c:971 do_writev+0x1b1/0x350 fs/read_write.c:1018 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f0909a7dc9d Code: 28 89 54 24 1c 48 89 74 24 10 89 7c 24 08 e8 0a 70 02 00 8b 54 24 1c 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 14 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 33 44 89 c7 48 89 44 24 08 e8 5e 70 02 00 48 RSP: 002b:00007fffb04b4630 EFLAGS: 00000293 ORIG_RAX: 0000000000000014 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f0909a7dc9d RDX: 0000000000000003 RSI: 00007fffb04b4670 RDI: 00000000000000ca RBP: 000055557f1bb430 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000008 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f0909bac9d8 R15: 000000000000000c </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. 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
