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BUG: KMSAN: uninit-value in hci_cmd_complete_evt+0xbc7/0xe50 net/bluetooth/hci_event.c:4247
 hci_cmd_complete_evt+0xbc7/0xe50 net/bluetooth/hci_event.c:4247
 hci_event_func net/bluetooth/hci_event.c:7494 [inline]
 hci_event_packet+0xcb6/0x1df0 net/bluetooth/hci_event.c:7549
 hci_rx_work+0x9a8/0x12b0 net/bluetooth/hci_core.c:4020
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xb9a/0x1d90 kernel/workqueue.c:3319
 worker_thread+0xedf/0x1590 kernel/workqueue.c:3400
 kthread+0xd5c/0xf00 kernel/kthread.c:464
 ret_from_fork+0x71/0x90 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Uninit was stored to memory at:
 hci_cmd_complete_evt+0xbc0/0xe50 net/bluetooth/hci_event.c:4247
 hci_event_func net/bluetooth/hci_event.c:7494 [inline]
 hci_event_packet+0xcb6/0x1df0 net/bluetooth/hci_event.c:7549
 hci_rx_work+0x9a8/0x12b0 net/bluetooth/hci_core.c:4020
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xb9a/0x1d90 kernel/workqueue.c:3319
 worker_thread+0xedf/0x1590 kernel/workqueue.c:3400
 kthread+0xd5c/0xf00 kernel/kthread.c:464
 ret_from_fork+0x71/0x90 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Uninit was stored to memory at:
 hci_cmd_complete_evt+0x775/0xe50 net/bluetooth/hci_event.c:-1
 hci_event_func net/bluetooth/hci_event.c:7494 [inline]
 hci_event_packet+0xcb6/0x1df0 net/bluetooth/hci_event.c:7549
 hci_rx_work+0x9a8/0x12b0 net/bluetooth/hci_core.c:4020
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xb9a/0x1d90 kernel/workqueue.c:3319
 worker_thread+0xedf/0x1590 kernel/workqueue.c:3400
 kthread+0xd5c/0xf00 kernel/kthread.c:464
 ret_from_fork+0x71/0x90 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245

Uninit was created at:
 slab_post_alloc_hook mm/slub.c:4153 [inline]
 slab_alloc_node mm/slub.c:4196 [inline]
 kmem_cache_alloc_node_noprof+0x818/0xf00 mm/slub.c:4248
 kmalloc_reserve+0x13c/0x4b0 net/core/skbuff.c:577
 __alloc_skb+0x347/0x7d0 net/core/skbuff.c:668
 alloc_skb include/linux/skbuff.h:1340 [inline]
 bt_skb_alloc include/net/bluetooth/bluetooth.h:496 [inline]
 vhci_get_user drivers/bluetooth/hci_vhci.c:488 [inline]
 vhci_write+0x125/0x960 drivers/bluetooth/hci_vhci.c:608
 new_sync_write fs/read_write.c:591 [inline]
 vfs_write+0xb31/0x1560 fs/read_write.c:684
 ksys_write fs/read_write.c:736 [inline]
 __do_sys_write fs/read_write.c:747 [inline]
 __se_sys_write fs/read_write.c:744 [inline]
 __ia32_sys_write+0x1f9/0x4d0 fs/read_write.c:744
 ia32_sys_call+0x30f2/0x42c0 arch/x86/include/generated/asm/syscalls_32.h:5
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline]
 __do_fast_syscall_32+0xb0/0x110 arch/x86/entry/syscall_32.c:306
 do_fast_syscall_32+0x38/0x80 arch/x86/entry/syscall_32.c:331
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/syscall_32.c:369
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

CPU: 1 UID: 0 PID: 5798 Comm: kworker/u9:5 Not tainted 6.15.0-rc7-syzkaller-00007-g4a95bc121ccd #0 PREEMPT(undef) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: hci2 hci_rx_work
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