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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+0x9a4/0xa30 net/ieee802154/header_ops.c:108
 ieee802154_hdr_push_sechdr net/ieee802154/header_ops.c:54 [inline]
 ieee802154_hdr_push+0x9a4/0xa30 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+0xb55/0x16f0 net/ieee802154/socket.c:677
 ieee802154_sock_sendmsg+0x91/0xe0 net/ieee802154/socket.c:96
 sock_sendmsg_nosec net/socket.c:787 [inline]
 __sock_sendmsg net/socket.c:802 [inline]
 __sys_sendto+0xa08/0xae0 net/socket.c:2265
 __do_sys_sendto net/socket.c:2272 [inline]
 __se_sys_sendto net/socket.c:2268 [inline]
 __x64_sys_sendto+0x130/0x200 net/socket.c:2268
 x64_sys_call+0x39a0/0x3ea0 arch/x86/include/generated/asm/syscalls_64.h:45
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x134/0xf80 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+0x99d/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+0xb55/0x16f0 net/ieee802154/socket.c:677
 ieee802154_sock_sendmsg+0x91/0xe0 net/ieee802154/socket.c:96
 sock_sendmsg_nosec net/socket.c:787 [inline]
 __sock_sendmsg net/socket.c:802 [inline]
 __sys_sendto+0xa08/0xae0 net/socket.c:2265
 __do_sys_sendto net/socket.c:2272 [inline]
 __se_sys_sendto net/socket.c:2268 [inline]
 __x64_sys_sendto+0x130/0x200 net/socket.c:2268
 x64_sys_call+0x39a0/0x3ea0 arch/x86/include/generated/asm/syscalls_64.h:45
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x134/0xf80 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+0xb55/0x16f0 net/ieee802154/socket.c:677

CPU: 1 UID: 0 PID: 6564 Comm: syz.0.16 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
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