===================================================== BUG: KMSAN: uninit-value in ieee802154_hdr_push_sechdr net/ieee802154/header_ops.c:54 [inline] BUG: KMSAN: uninit-value in ieee802154_hdr_push+0xac2/0xba0 net/ieee802154/header_ops.c:108 ieee802154_hdr_push_sechdr net/ieee802154/header_ops.c:54 [inline] ieee802154_hdr_push+0xac2/0xba0 net/ieee802154/header_ops.c:108 ieee802154_header_create+0xaa0/0xd30 net/mac802154/iface.c:390 wpan_dev_hard_header include/net/cfg802154.h:415 [inline] dgram_sendmsg+0xd43/0x1540 net/ieee802154/socket.c:679 ieee802154_sock_sendmsg+0x91/0xc0 net/ieee802154/socket.c:96 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0xa8f/0xe70 net/socket.c:2479 ___sys_sendmsg+0x2a1/0x3f0 net/socket.c:2533 __sys_sendmsg+0x25c/0x440 net/socket.c:2562 __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+0x9d/0xe0 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+0x61/0xd30 net/mac802154/iface.c:354 wpan_dev_hard_header include/net/cfg802154.h:415 [inline] dgram_sendmsg+0xd43/0x1540 net/ieee802154/socket.c:679 CPU: 0 PID: 8525 Comm: syz-executor.0 Not tainted 6.2.0-syzkaller-81157-g944070199c5e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 =====================================================