===================================================== BUG: KMSAN: uninit-value in ieee802154_hdr_push_sechdr net/ieee802154/header_ops.c:54 [inline] BUG: KMSAN: uninit-value in ieee802154_hdr_push+0xd1b/0xe50 net/ieee802154/header_ops.c:108 ieee802154_hdr_push_sechdr net/ieee802154/header_ops.c:54 [inline] ieee802154_hdr_push+0xd1b/0xe50 net/ieee802154/header_ops.c:108 ieee802154_header_create+0xcd6/0x10e0 net/mac802154/iface.c:390 wpan_dev_hard_header include/net/cfg802154.h:415 [inline] dgram_sendmsg+0xd29/0x1770 net/ieee802154/socket.c:679 ieee802154_sock_sendmsg+0xf0/0x130 net/ieee802154/socket.c:96 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0xe11/0x1250 net/socket.c:2476 ___sys_sendmsg+0x4e6/0x580 net/socket.c:2530 __sys_sendmsg+0x3ac/0x530 net/socket.c:2559 __compat_sys_sendmsg net/compat.c:345 [inline] __do_compat_sys_sendmsg net/compat.c:352 [inline] __se_compat_sys_sendmsg net/compat.c:349 [inline] __ia32_compat_sys_sendmsg+0xf1/0x130 net/compat.c:349 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178 do_fast_syscall_32+0x37/0x80 arch/x86/entry/common.c:203 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:246 entry_SYSENTER_compat_after_hwframe+0x70/0x82 Local variable hdr created at: ieee802154_header_create+0xcc/0x10e0 net/mac802154/iface.c:354 wpan_dev_hard_header include/net/cfg802154.h:415 [inline] dgram_sendmsg+0xd29/0x1770 net/ieee802154/socket.c:679 CPU: 0 PID: 5971 Comm: syz-executor.4 Not tainted 6.2.0-rc8-syzkaller-80994-gda13c00eebfb #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 =====================================================