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BUG: KMSAN: kernel-infoleak in instrument_copy_to_user include/linux/instrumented.h:114 [inline]
BUG: KMSAN: kernel-infoleak in copy_to_user_iter lib/iov_iter.c:24 [inline]
BUG: KMSAN: kernel-infoleak in iterate_ubuf include/linux/iov_iter.h:30 [inline]
BUG: KMSAN: kernel-infoleak in iterate_and_advance2 include/linux/iov_iter.h:300 [inline]
BUG: KMSAN: kernel-infoleak in iterate_and_advance include/linux/iov_iter.h:328 [inline]
BUG: KMSAN: kernel-infoleak in _copy_to_iter+0x305/0x2e70 lib/iov_iter.c:185
 instrument_copy_to_user include/linux/instrumented.h:114 [inline]
 copy_to_user_iter lib/iov_iter.c:24 [inline]
 iterate_ubuf include/linux/iov_iter.h:30 [inline]
 iterate_and_advance2 include/linux/iov_iter.h:300 [inline]
 iterate_and_advance include/linux/iov_iter.h:328 [inline]
 _copy_to_iter+0x305/0x2e70 lib/iov_iter.c:185
 copy_to_iter include/linux/uio.h:220 [inline]
 simple_copy_to_iter net/core/datagram.c:524 [inline]
 __skb_datagram_iter+0x18d/0x1190 net/core/datagram.c:401
 skb_copy_datagram_iter+0x5c/0x200 net/core/datagram.c:538
 skb_copy_datagram_msg include/linux/skbuff.h:4128 [inline]
 netlink_recvmsg+0x42e/0x1590 net/netlink/af_netlink.c:1940
 sock_recvmsg_nosec net/socket.c:1017 [inline]
 sock_recvmsg+0x2c4/0x340 net/socket.c:1039
 ____sys_recvmsg+0x18a/0x630 net/socket.c:2786
 ___sys_recvmsg+0x223/0x840 net/socket.c:2828
 __sys_recvmsg net/socket.c:2861 [inline]
 __do_sys_recvmsg net/socket.c:2867 [inline]
 __se_sys_recvmsg net/socket.c:2864 [inline]
 __x64_sys_recvmsg+0x20f/0x3b0 net/socket.c:2864
 x64_sys_call+0xe26/0x3c80 arch/x86/include/generated/asm/syscalls_64.h:48
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x1e0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Uninit was stored to memory at:
 pskb_expand_head+0x33a/0x1c10 net/core/skbuff.c:2255
 netlink_trim+0x451/0x4c0 net/netlink/af_netlink.c:1295
 netlink_broadcast_filtered+0x82/0x23b0 net/netlink/af_netlink.c:1501
 nlmsg_multicast_filtered include/net/netlink.h:1129 [inline]
 nlmsg_multicast include/net/netlink.h:1148 [inline]
 nlmsg_notify+0x15f/0x2f0 net/netlink/af_netlink.c:2577
 rtnl_notify+0xc3/0xf0 net/core/rtnetlink.c:958
 wireless_nlevent_flush net/wireless/wext-core.c:354 [inline]
 wireless_nlevent_process+0xfe/0x250 net/wireless/wext-core.c:414
 process_one_work kernel/workqueue.c:3238 [inline]
 process_scheduled_works+0xc1d/0x1e80 kernel/workqueue.c:3319
 worker_thread+0xea3/0x1500 kernel/workqueue.c:3400
 kthread+0x6ce/0xf10 kernel/kthread.c:464
 ret_from_fork+0x6d/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:
 wireless_send_event+0x6aa/0x1490 net/wireless/wext-core.c:580
 ioctl_standard_iw_point+0x12e2/0x13b0 net/wireless/wext-core.c:-1
 compat_standard_call+0x17f/0x480 net/wireless/wext-core.c:1108
 wireless_process_ioctl net/wireless/wext-core.c:-1 [inline]
 wext_ioctl_dispatch+0x18d/0x770 net/wireless/wext-core.c:1014
 compat_wext_handle_ioctl+0x1a7/0x2f0 net/wireless/wext-core.c:1137
 compat_sock_ioctl+0x265/0x1370 net/socket.c:3504
 __do_compat_sys_ioctl fs/ioctl.c:1004 [inline]
 __se_compat_sys_ioctl+0x6ce/0x10c0 fs/ioctl.c:947
 __ia32_compat_sys_ioctl+0x93/0xe0 fs/ioctl.c:947
 ia32_sys_call+0x2950/0x41f0 arch/x86/include/generated/asm/syscalls_32.h:55
 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

Local variable iwp created at:
 compat_standard_call+0x49/0x480 net/wireless/wext-core.c:1095
 wireless_process_ioctl net/wireless/wext-core.c:-1 [inline]
 wext_ioctl_dispatch+0x18d/0x770 net/wireless/wext-core.c:1014

Bytes 60-63 of 64 are uninitialized
Memory access of size 64 starts at ffff88811a02fc80
Data copied to user address 00007ffd3efe6068

CPU: 0 UID: 101 PID: 5446 Comm: dhcpcd Not tainted 6.15.0-rc2-syzkaller #0 PREEMPT(undef) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
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