===================================================== BUG: KMSAN: uninit-value in ieee802154_hdr_push+0x41d/0x9f0 net/ieee802154/header_ops.c:96 ieee802154_hdr_push+0x41d/0x9f0 net/ieee802154/header_ops.c:96 ieee802154_header_create+0xb37/0xdb0 net/mac802154/iface.c:403 wpan_dev_hard_header include/net/cfg802154.h:385 [inline] dgram_sendmsg+0xaf3/0x1460 net/ieee802154/socket.c:669 ieee802154_sock_sendmsg+0x8d/0xc0 net/ieee802154/socket.c:96 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0xabc/0xe90 net/socket.c:2482 ___sys_sendmsg+0x2a1/0x3f0 net/socket.c:2536 __sys_sendmsg+0x258/0x440 net/socket.c:2565 __compat_sys_sendmsg net/compat.c:343 [inline] __do_compat_sys_sendmsg net/compat.c:350 [inline] __se_compat_sys_sendmsg net/compat.c:347 [inline] __ia32_compat_sys_sendmsg+0x99/0xe0 net/compat.c:347 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+0x33/0x70 arch/x86/entry/common.c:203 do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:246 entry_SYSENTER_compat_after_hwframe+0x70/0x82 Uninit was stored to memory at: ieee802154_header_create+0xb1d/0xdb0 net/mac802154/iface.c:401 wpan_dev_hard_header include/net/cfg802154.h:385 [inline] dgram_sendmsg+0xaf3/0x1460 net/ieee802154/socket.c:669 ieee802154_sock_sendmsg+0x8d/0xc0 net/ieee802154/socket.c:96 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0xabc/0xe90 net/socket.c:2482 ___sys_sendmsg+0x2a1/0x3f0 net/socket.c:2536 __sys_sendmsg+0x258/0x440 net/socket.c:2565 __compat_sys_sendmsg net/compat.c:343 [inline] __do_compat_sys_sendmsg net/compat.c:350 [inline] __se_compat_sys_sendmsg net/compat.c:347 [inline] __ia32_compat_sys_sendmsg+0x99/0xe0 net/compat.c:347 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+0x33/0x70 arch/x86/entry/common.c:203 do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:246 entry_SYSENTER_compat_after_hwframe+0x70/0x82 Uninit was stored to memory at: ieee802154_addr_from_sa include/net/ieee802154_netdev.h:172 [inline] dgram_sendmsg+0x1286/0x1460 net/ieee802154/socket.c:659 ieee802154_sock_sendmsg+0x8d/0xc0 net/ieee802154/socket.c:96 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0xabc/0xe90 net/socket.c:2482 ___sys_sendmsg+0x2a1/0x3f0 net/socket.c:2536 __sys_sendmsg+0x258/0x440 net/socket.c:2565 __compat_sys_sendmsg net/compat.c:343 [inline] __do_compat_sys_sendmsg net/compat.c:350 [inline] __se_compat_sys_sendmsg net/compat.c:347 [inline] __ia32_compat_sys_sendmsg+0x99/0xe0 net/compat.c:347 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+0x33/0x70 arch/x86/entry/common.c:203 do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:246 entry_SYSENTER_compat_after_hwframe+0x70/0x82 Local variable address created at: ___sys_sendmsg+0x69/0x3f0 net/socket.c:2526 __sys_sendmsg+0x258/0x440 net/socket.c:2565 CPU: 0 PID: 11943 Comm: syz-executor.4 Not tainted 6.0.0-rc5-syzkaller-48543-g968c2729e576 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 =====================================================