CPU: 1 PID: 3529 Comm: kworker/u5:4 Not tainted 6.0.0-rc5-syzkaller-48543-g968c2729e576 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 Workqueue: hci3 hci_conn_timeout RIP: 0010:hci_conn_timeout+0xa8/0x3c0 net/bluetooth/hci_conn.c:582 Code: 74 07 f7 d3 44 21 e3 74 25 45 85 e4 74 2d e8 df 5b 3a f5 e9 f5 02 00 00 44 89 ff e8 42 6a b9 f5 45 85 e4 79 bc e8 c8 5b 3a f5 <0f> 0b eb 12 44 89 ff e8 2c 6a b9 f5 45 85 e4 75 d3 e8 b2 5b 3a f5 RSP: 0018:ffff88809eac7c88 EFLAGS: 00010293 ===================================================== BUG: KMSAN: uninit-value in __show_regs+0x8c/0xc90 arch/x86/kernel/process_64.c:76 __show_regs+0x8c/0xc90 arch/x86/kernel/process_64.c:76 show_regs+0x6e/0xd0 arch/x86/kernel/dumpstack.c:469 __warn+0x242/0x580 kernel/panic.c:621 report_bug+0x7ff/0xa10 lib/bug.c:198 handle_bug+0x41/0x70 arch/x86/kernel/traps.c:316 exc_invalid_op+0x1b/0x50 arch/x86/kernel/traps.c:336 asm_exc_invalid_op+0x1b/0x20 hci_conn_timeout+0xa8/0x3c0 process_one_work+0xb27/0x13e0 kernel/workqueue.c:2289 worker_thread+0x1076/0x1d60 kernel/workqueue.c:2436 kthread+0x31b/0x430 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 Local variable to.i created at: nbd_read_reply drivers/block/nbd.c:702 [inline] recv_work+0x192/0x1290 drivers/block/nbd.c:838 process_one_work+0xb27/0x13e0 kernel/workqueue.c:2289 CPU: 1 PID: 3529 Comm: kworker/u5:4 Not tainted 6.0.0-rc5-syzkaller-48543-g968c2729e576 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 Workqueue: hci3 hci_conn_timeout =====================================================