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BUG: KMSAN: uninit-value in ieee802154_hdr_push_sechdr net/ieee802154/header_ops.c:54 [inline]
BUG: KMSAN: uninit-value in ieee802154_hdr_push+0x9ac/0xa30 net/ieee802154/header_ops.c:108
 ieee802154_hdr_push_sechdr net/ieee802154/header_ops.c:54 [inline]
 ieee802154_hdr_push+0x9ac/0xa30 net/ieee802154/header_ops.c:108
 ieee802154_header_create+0x854/0xb90 net/mac802154/iface.c:396
 wpan_dev_hard_header include/net/cfg802154.h:525 [inline]
 dgram_sendmsg+0xb3d/0x16d0 net/ieee802154/socket.c:677
 ieee802154_sock_sendmsg+0x92/0xd0 net/ieee802154/socket.c:96
 sock_sendmsg_nosec net/socket.c:712 [inline]
 __sock_sendmsg+0x333/0x3d0 net/socket.c:727
 __sys_sendto+0x593/0x720 net/socket.c:2226
 __do_sys_sendto net/socket.c:2233 [inline]
 __se_sys_sendto net/socket.c:2229 [inline]
 __x64_sys_sendto+0x130/0x200 net/socket.c:2229
 x64_sys_call+0x3910/0x3e20 arch/x86/include/generated/asm/syscalls_64.h:45
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd9/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Uninit was stored to memory at:
 ieee802154_hdr_push_sechdr net/ieee802154/header_ops.c:54 [inline]
 ieee802154_hdr_push+0x9a5/0xa30 net/ieee802154/header_ops.c:108
 ieee802154_header_create+0x854/0xb90 net/mac802154/iface.c:396
 wpan_dev_hard_header include/net/cfg802154.h:525 [inline]
 dgram_sendmsg+0xb3d/0x16d0 net/ieee802154/socket.c:677
 ieee802154_sock_sendmsg+0x92/0xd0 net/ieee802154/socket.c:96
 sock_sendmsg_nosec net/socket.c:712 [inline]
 __sock_sendmsg+0x333/0x3d0 net/socket.c:727
 __sys_sendto+0x593/0x720 net/socket.c:2226
 __do_sys_sendto net/socket.c:2233 [inline]
 __se_sys_sendto net/socket.c:2229 [inline]
 __x64_sys_sendto+0x130/0x200 net/socket.c:2229
 x64_sys_call+0x3910/0x3e20 arch/x86/include/generated/asm/syscalls_64.h:45
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd9/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Local variable hdr created at:
 ieee802154_header_create+0x4e/0xb90 net/mac802154/iface.c:360
 wpan_dev_hard_header include/net/cfg802154.h:525 [inline]
 dgram_sendmsg+0xb3d/0x16d0 net/ieee802154/socket.c:677

CPU: 0 UID: 0 PID: 8875 Comm: syz.2.1098 Not tainted 6.16.0-syzkaller-04405-g4b290aae788e #0 PREEMPT(none) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
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