===================================================== BUG: KMSAN: uninit-value in hwsim_cloned_frame_received_nl+0x1350/0x1410 drivers/net/wireless/virtual/mac80211_hwsim.c:5698 hwsim_cloned_frame_received_nl+0x1350/0x1410 drivers/net/wireless/virtual/mac80211_hwsim.c:5698 genl_family_rcv_msg_doit net/netlink/genetlink.c:968 [inline] genl_family_rcv_msg net/netlink/genetlink.c:1048 [inline] genl_rcv_msg+0x12ed/0x1380 net/netlink/genetlink.c:1065 netlink_rcv_skb+0x371/0x650 net/netlink/af_netlink.c:2546 genl_rcv+0x40/0x60 net/netlink/genetlink.c:1076 netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline] netlink_unicast+0xf28/0x1230 net/netlink/af_netlink.c:1365 netlink_sendmsg+0x122f/0x13d0 net/netlink/af_netlink.c:1913 sock_sendmsg_nosec net/socket.c:724 [inline] sock_sendmsg net/socket.c:747 [inline] __sys_sendto+0x76c/0xa10 net/socket.c:2144 __do_sys_sendto net/socket.c:2156 [inline] __se_sys_sendto net/socket.c:2152 [inline] __x64_sys_sendto+0x125/0x1c0 net/socket.c:2152 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd Uninit was created at: slab_post_alloc_hook+0x12d/0xb60 mm/slab.h:716 slab_alloc_node mm/slub.c:3451 [inline] kmem_cache_alloc_node+0x535/0xa30 mm/slub.c:3496 kmalloc_reserve+0x148/0x470 net/core/skbuff.c:568 __alloc_skb+0x318/0x740 net/core/skbuff.c:654 alloc_skb include/linux/skbuff.h:1288 [inline] hwsim_cloned_frame_received_nl+0x1b7/0x1410 drivers/net/wireless/virtual/mac80211_hwsim.c:5621 genl_family_rcv_msg_doit net/netlink/genetlink.c:968 [inline] genl_family_rcv_msg net/netlink/genetlink.c:1048 [inline] genl_rcv_msg+0x12ed/0x1380 net/netlink/genetlink.c:1065 netlink_rcv_skb+0x371/0x650 net/netlink/af_netlink.c:2546 genl_rcv+0x40/0x60 net/netlink/genetlink.c:1076 netlink_unicast_kernel net/netlink/af_netlink.c:1339 [inline] netlink_unicast+0xf28/0x1230 net/netlink/af_netlink.c:1365 netlink_sendmsg+0x122f/0x13d0 net/netlink/af_netlink.c:1913 sock_sendmsg_nosec net/socket.c:724 [inline] sock_sendmsg net/socket.c:747 [inline] __sys_sendto+0x76c/0xa10 net/socket.c:2144 __do_sys_sendto net/socket.c:2156 [inline] __se_sys_sendto net/socket.c:2152 [inline] __x64_sys_sendto+0x125/0x1c0 net/socket.c:2152 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd CPU: 1 PID: 4959 Comm: syz-executor139 Not tainted 6.4.0-rc4-syzkaller-g2741f1b02117 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 =====================================================