=====================================================
BUG: KMSAN: uninit-value in lookahead_bufs drivers/tty/tty_buffer.c:486 [inline]
BUG: KMSAN: uninit-value in flush_to_ldisc+0x95d/0xdf0 drivers/tty/tty_buffer.c:568
 lookahead_bufs drivers/tty/tty_buffer.c:486 [inline]
 flush_to_ldisc+0x95d/0xdf0 drivers/tty/tty_buffer.c:568
 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

Uninit was created at:
 __alloc_pages+0x9f1/0xe80 mm/page_alloc.c:5556
 alloc_pages+0xaae/0xd80 mm/mempolicy.c:2270
 alloc_slab_page mm/slub.c:1839 [inline]
 allocate_slab+0x19b/0xef0 mm/slub.c:1984
 new_slab mm/slub.c:2044 [inline]
 ___slab_alloc+0xa85/0x1c60 mm/slub.c:3046
 __slab_alloc mm/slub.c:3133 [inline]
 slab_alloc_node mm/slub.c:3224 [inline]
 __kmalloc_node_track_caller+0x911/0x1250 mm/slub.c:4970
 kmalloc_reserve net/core/skbuff.c:362 [inline]
 __alloc_skb+0x346/0xcf0 net/core/skbuff.c:434
 __pskb_copy_fclone+0xd1/0x1700 net/core/skbuff.c:1652
 __pskb_copy include/linux/skbuff.h:1321 [inline]
 pskb_copy include/linux/skbuff.h:3488 [inline]
 tipc_clone_to_loopback+0x151/0x920 net/tipc/bearer.c:755
 tipc_loopback_trace net/tipc/bearer.h:253 [inline]
 tipc_node_xmit+0x977/0x1600 net/tipc/node.c:1696
 __tipc_sendstream+0x159d/0x1fa0 net/tipc/socket.c:1626
 tipc_sendstream net/tipc/socket.c:1550 [inline]
 tipc_send_packet+0xa7/0x100 net/tipc/socket.c:1656
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg net/socket.c:734 [inline]
 sock_write_iter+0x495/0x5e0 net/socket.c:1108
 call_write_iter include/linux/fs.h:2187 [inline]
 io_write+0xb7c/0x2300 io_uring/rw.c:914
 io_issue_sqe+0x3b1/0x11d0 io_uring/io_uring.c:1577
 io_queue_sqe io_uring/io_uring.c:1755 [inline]
 io_submit_sqe+0xb40/0x1be0 io_uring/io_uring.c:2013
 io_submit_sqes+0x542/0xd50 io_uring/io_uring.c:2124
 __do_sys_io_uring_enter io_uring/io_uring.c:3054 [inline]
 __se_sys_io_uring_enter+0x597/0x1d30 io_uring/io_uring.c:2984
 __x64_sys_io_uring_enter+0x117/0x190 io_uring/io_uring.c:2984
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

CPU: 1 PID: 52 Comm: kworker/u4:3 Not tainted 6.0.0-rc5-syzkaller-48543-g968c2729e576 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
Workqueue: events_unbound flush_to_ldisc
=====================================================