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BUG: KMSAN: kernel-infoleak in instrument_copy_to_user include/linux/instrumented.h:114 [inline]
BUG: KMSAN: kernel-infoleak in _inline_copy_to_user include/linux/uaccess.h:196 [inline]
BUG: KMSAN: kernel-infoleak in _copy_to_user+0xc8/0x120 lib/usercopy.c:26
 instrument_copy_to_user include/linux/instrumented.h:114 [inline]
 _inline_copy_to_user include/linux/uaccess.h:196 [inline]
 _copy_to_user+0xc8/0x120 lib/usercopy.c:26
 copy_to_user include/linux/uaccess.h:225 [inline]
 move_addr_to_user+0x28b/0x400 net/socket.c:291
 ____sys_recvmsg+0x232/0x620 net/socket.c:2810
 ___sys_recvmsg+0x223/0x840 net/socket.c:2845
 do_recvmmsg+0x45a/0xfc0 net/socket.c:2940
 __sys_recvmmsg net/socket.c:3016 [inline]
 __do_sys_recvmmsg net/socket.c:3037 [inline]
 __se_sys_recvmmsg net/socket.c:3030 [inline]
 __x64_sys_recvmmsg+0x21a/0x490 net/socket.c:3030
 x64_sys_call+0x35ba/0x3c30 arch/x86/include/generated/asm/syscalls_64.h:300
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Uninit was stored to memory at:
 ieee802154_addr_to_sa include/net/ieee802154_netdev.h:369 [inline]
 dgram_recvmsg+0x616/0xb80 net/ieee802154/socket.c:739
 sock_common_recvmsg+0xdd/0x1d0 net/core/sock.c:3801
 sock_recvmsg_nosec net/socket.c:1033 [inline]
 sock_recvmsg+0x2c4/0x340 net/socket.c:1055
 ____sys_recvmsg+0x18a/0x620 net/socket.c:2803
 ___sys_recvmsg+0x223/0x840 net/socket.c:2845
 do_recvmmsg+0x45a/0xfc0 net/socket.c:2940
 __sys_recvmmsg net/socket.c:3016 [inline]
 __do_sys_recvmmsg net/socket.c:3037 [inline]
 __se_sys_recvmmsg net/socket.c:3030 [inline]
 __x64_sys_recvmmsg+0x21a/0x490 net/socket.c:3030
 x64_sys_call+0x35ba/0x3c30 arch/x86/include/generated/asm/syscalls_64.h:300
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Uninit was stored to memory at:
 __copy_skb_header+0x9b/0x850 net/core/skbuff.c:1533
 __skb_clone+0x57/0x650 net/core/skbuff.c:1585
 skb_clone+0x3aa/0x550 net/core/skbuff.c:2091
 __ieee802154_rx_handle_packet net/mac802154/rx.c:363 [inline]
 ieee802154_rx+0xe13/0x32e0 net/mac802154/rx.c:431
 ieee802154_tasklet_handler+0x133/0x2a0 net/mac802154/main.c:35
 tasklet_action_common+0x39c/0xd60 kernel/softirq.c:811
 tasklet_action+0x2d/0x40 kernel/softirq.c:837
 handle_softirqs+0x1a0/0x7c0 kernel/softirq.c:561
 __do_softirq+0x14/0x1a kernel/softirq.c:595

Uninit was stored to memory at:
 ieee802154_parse_frame_start net/mac802154/rx.c:299 [inline]
 __ieee802154_rx_handle_packet net/mac802154/rx.c:343 [inline]
 ieee802154_rx+0xb10/0x32e0 net/mac802154/rx.c:431
 ieee802154_tasklet_handler+0x133/0x2a0 net/mac802154/main.c:35
 tasklet_action_common+0x39c/0xd60 kernel/softirq.c:811
 tasklet_action+0x2d/0x40 kernel/softirq.c:837
 handle_softirqs+0x1a0/0x7c0 kernel/softirq.c:561
 __do_softirq+0x14/0x1a kernel/softirq.c:595

Local variable hdr.i created at:
 __ieee802154_rx_handle_packet net/mac802154/rx.c:340 [inline]
 ieee802154_rx+0x93b/0x32e0 net/mac802154/rx.c:431
 ieee802154_tasklet_handler+0x133/0x2a0 net/mac802154/main.c:35

Bytes 8-9 of 20 are uninitialized
Memory access of size 20 starts at ffff88804e76fa38
Data copied to user address 0000000020000340

CPU: 1 UID: 0 PID: 9505 Comm: syz.9.742 Tainted: G        W          6.13.0-rc5-syzkaller-00198-g9244696b34f2 #0
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
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