===================================================== BUG: KMSAN: uninit-value in nci_init_req net/nfc/nci/core.c:177 [inline] BUG: KMSAN: uninit-value in __nci_request net/nfc/nci/core.c:108 [inline] BUG: KMSAN: uninit-value in nci_open_device net/nfc/nci/core.c:521 [inline] BUG: KMSAN: uninit-value in nci_dev_up+0xfec/0x1b10 net/nfc/nci/core.c:632 nci_init_req net/nfc/nci/core.c:177 [inline] __nci_request net/nfc/nci/core.c:108 [inline] nci_open_device net/nfc/nci/core.c:521 [inline] nci_dev_up+0xfec/0x1b10 net/nfc/nci/core.c:632 nfc_dev_up+0x26e/0x440 net/nfc/core.c:118 nfc_genl_dev_up+0xfe/0x1d0 net/nfc/netlink.c:770 genl_family_rcv_msg_doit net/netlink/genetlink.c:972 [inline] genl_family_rcv_msg net/netlink/genetlink.c:1052 [inline] genl_rcv_msg+0x11ec/0x1290 net/netlink/genetlink.c:1067 netlink_rcv_skb+0x371/0x650 net/netlink/af_netlink.c:2545 genl_rcv+0x40/0x60 net/netlink/genetlink.c:1076 netlink_unicast_kernel net/netlink/af_netlink.c:1342 [inline] netlink_unicast+0xf47/0x1250 net/netlink/af_netlink.c:1368 netlink_sendmsg+0x1238/0x13d0 net/netlink/af_netlink.c:1910 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] ____sys_sendmsg+0x9c2/0xd60 net/socket.c:2584 ___sys_sendmsg+0x28d/0x3c0 net/socket.c:2638 __sys_sendmsg net/socket.c:2667 [inline] __do_sys_sendmsg net/socket.c:2676 [inline] __se_sys_sendmsg net/socket.c:2674 [inline] __x64_sys_sendmsg+0x307/0x490 net/socket.c:2674 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x6d/0x140 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b Uninit was stored to memory at: nci_core_reset_ntf_packet net/nfc/nci/ntf.c:36 [inline] nci_ntf_packet+0x19dc/0x39c0 net/nfc/nci/ntf.c:782 nci_rx_work+0x213/0x500 net/nfc/nci/core.c:1522 process_one_work kernel/workqueue.c:2633 [inline] process_scheduled_works+0x104e/0x1e70 kernel/workqueue.c:2706 worker_thread+0xf45/0x1490 kernel/workqueue.c:2787 kthread+0x3ed/0x540 kernel/kthread.c:388 ret_from_fork+0x66/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242 Uninit was created at: slab_post_alloc_hook+0x129/0xa70 mm/slab.h:768 slab_alloc_node mm/slub.c:3478 [inline] kmem_cache_alloc_node+0x5e9/0xb10 mm/slub.c:3523 kmalloc_reserve+0x13d/0x4a0 net/core/skbuff.c:560 __alloc_skb+0x318/0x740 net/core/skbuff.c:651 alloc_skb include/linux/skbuff.h:1286 [inline] virtual_ncidev_write+0x6d/0x280 drivers/nfc/virtual_ncidev.c:120 vfs_write+0x48b/0x1200 fs/read_write.c:588 ksys_write+0x20f/0x4c0 fs/read_write.c:643 __do_sys_write fs/read_write.c:655 [inline] __se_sys_write fs/read_write.c:652 [inline] __x64_sys_write+0x93/0xd0 fs/read_write.c:652 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x6d/0x140 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b CPU: 1 PID: 17524 Comm: syz-executor.3 Not tainted 6.7.0-syzkaller-00562-g9f8413c4a66f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 =====================================================