===================================================== BUG: KMSAN: uninit-value in crc_ccitt_byte include/linux/crc-ccitt.h:15 [inline] BUG: KMSAN: uninit-value in crc_ccitt+0x3aa/0x410 lib/crc-ccitt.c:102 crc_ccitt_byte include/linux/crc-ccitt.h:15 [inline] crc_ccitt+0x3aa/0x410 lib/crc-ccitt.c:102 ieee802154_tx+0x36a/0x830 net/mac802154/tx.c:72 ieee802154_subif_start_xmit+0x16a/0x250 net/mac802154/tx.c:132 __netdev_start_xmit include/linux/netdevice.h:4994 [inline] netdev_start_xmit include/linux/netdevice.h:5008 [inline] xmit_one+0x2f4/0x840 net/core/dev.c:3590 dev_hard_start_xmit+0x186/0x440 net/core/dev.c:3606 sch_direct_xmit+0x5f5/0x1400 net/sched/sch_generic.c:342 __dev_xmit_skb+0x18a4/0x2900 net/core/dev.c:3817 __dev_queue_xmit+0x1578/0x3290 net/core/dev.c:4194 dev_queue_xmit+0x4b/0x60 net/core/dev.c:4262 dgram_sendmsg+0x10c6/0x1650 net/ieee802154/socket.c:681 ieee802154_sock_sendmsg+0xec/0x130 net/ieee802154/socket.c:96 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg net/socket.c:724 [inline] ____sys_sendmsg+0xe11/0x12c0 net/socket.c:2409 ___sys_sendmsg net/socket.c:2463 [inline] __sys_sendmsg+0x704/0x840 net/socket.c:2492 __compat_sys_sendmsg net/compat.c:347 [inline] __do_compat_sys_sendmsg net/compat.c:354 [inline] __se_compat_sys_sendmsg net/compat.c:351 [inline] __ia32_compat_sys_sendmsg+0xed/0x130 net/compat.c:351 do_syscall_32_irqs_on arch/x86/entry/common.c:114 [inline] __do_fast_syscall_32+0x96/0xf0 arch/x86/entry/common.c:180 do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205 do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c Uninit was stored to memory at: ieee802154_hdr_push+0xcfe/0xe00 net/ieee802154/header_ops.c:117 ieee802154_header_create+0xddd/0x1150 net/mac802154/iface.c:403 wpan_dev_hard_header include/net/cfg802154.h:374 [inline] dgram_sendmsg+0xea2/0x1650 net/ieee802154/socket.c:669 ieee802154_sock_sendmsg+0xec/0x130 net/ieee802154/socket.c:96 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg net/socket.c:724 [inline] ____sys_sendmsg+0xe11/0x12c0 net/socket.c:2409 ___sys_sendmsg net/socket.c:2463 [inline] __sys_sendmsg+0x704/0x840 net/socket.c:2492 __compat_sys_sendmsg net/compat.c:347 [inline] __do_compat_sys_sendmsg net/compat.c:354 [inline] __se_compat_sys_sendmsg net/compat.c:351 [inline] __ia32_compat_sys_sendmsg+0xed/0x130 net/compat.c:351 do_syscall_32_irqs_on arch/x86/entry/common.c:114 [inline] __do_fast_syscall_32+0x96/0xf0 arch/x86/entry/common.c:180 do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205 do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c Uninit was stored to memory at: ieee802154_hdr_push_addr net/ieee802154/header_ops.c:35 [inline] ieee802154_hdr_push+0x2ba/0xe00 net/ieee802154/header_ops.c:89 ieee802154_header_create+0xddd/0x1150 net/mac802154/iface.c:403 wpan_dev_hard_header include/net/cfg802154.h:374 [inline] dgram_sendmsg+0xea2/0x1650 net/ieee802154/socket.c:669 ieee802154_sock_sendmsg+0xec/0x130 net/ieee802154/socket.c:96 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg net/socket.c:724 [inline] ____sys_sendmsg+0xe11/0x12c0 net/socket.c:2409 ___sys_sendmsg net/socket.c:2463 [inline] __sys_sendmsg+0x704/0x840 net/socket.c:2492 __compat_sys_sendmsg net/compat.c:347 [inline] __do_compat_sys_sendmsg net/compat.c:354 [inline] __se_compat_sys_sendmsg net/compat.c:351 [inline] __ia32_compat_sys_sendmsg+0xed/0x130 net/compat.c:351 do_syscall_32_irqs_on arch/x86/entry/common.c:114 [inline] __do_fast_syscall_32+0x96/0xf0 arch/x86/entry/common.c:180 do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205 do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c Uninit was stored to memory at: ieee802154_header_create+0xdab/0x1150 net/mac802154/iface.c:401 wpan_dev_hard_header include/net/cfg802154.h:374 [inline] dgram_sendmsg+0xea2/0x1650 net/ieee802154/socket.c:669 ieee802154_sock_sendmsg+0xec/0x130 net/ieee802154/socket.c:96 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg net/socket.c:724 [inline] ____sys_sendmsg+0xe11/0x12c0 net/socket.c:2409 ___sys_sendmsg net/socket.c:2463 [inline] __sys_sendmsg+0x704/0x840 net/socket.c:2492 __compat_sys_sendmsg net/compat.c:347 [inline] __do_compat_sys_sendmsg net/compat.c:354 [inline] __se_compat_sys_sendmsg net/compat.c:351 [inline] __ia32_compat_sys_sendmsg+0xed/0x130 net/compat.c:351 do_syscall_32_irqs_on arch/x86/entry/common.c:114 [inline] __do_fast_syscall_32+0x96/0xf0 arch/x86/entry/common.c:180 do_fast_syscall_32+0x34/0x70 arch/x86/entry/common.c:205 do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:248 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c Local variable dst_addr created at: dgram_sendmsg+0x8b/0x1650 net/ieee802154/socket.c:606 ieee802154_sock_sendmsg+0xec/0x130 net/ieee802154/socket.c:96 CPU: 1 PID: 17197 Comm: syz-executor.4 Not tainted 5.16.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 =====================================================