===================================================== BUG: KMSAN: uninit-value in crc_ccitt_byte include/linux/crc-ccitt.h:15 [inline] BUG: KMSAN: uninit-value in crc_ccitt+0x27f/0x2e0 lib/crc-ccitt.c:102 crc_ccitt_byte include/linux/crc-ccitt.h:15 [inline] crc_ccitt+0x27f/0x2e0 lib/crc-ccitt.c:102 ieee802154_tx+0x294/0x6c0 net/mac802154/tx.c:72 ieee802154_subif_start_xmit+0xf6/0x1a0 net/mac802154/tx.c:132 __netdev_start_xmit include/linux/netdevice.h:4805 [inline] netdev_start_xmit include/linux/netdevice.h:4819 [inline] xmit_one+0x14e/0x5f0 net/core/dev.c:3590 dev_hard_start_xmit+0xe5/0x370 net/core/dev.c:3606 sch_direct_xmit+0x3f1/0xdb0 net/sched/sch_generic.c:342 __dev_xmit_skb+0xbe9/0x19e0 net/core/dev.c:3817 __dev_queue_xmit+0x12cb/0x31f0 net/core/dev.c:4221 dev_queue_xmit include/linux/netdevice.h:2994 [inline] dgram_sendmsg+0xcba/0x1460 net/ieee802154/socket.c:681 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:2488 ___sys_sendmsg+0x2a5/0x350 net/socket.c:2542 __sys_sendmsg+0x258/0x440 net/socket.c:2571 __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+0x99/0xe0 net/compat.c:351 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_hdr_push+0x8f5/0x9f0 net/ieee802154/header_ops.c:117 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:2488 ___sys_sendmsg+0x2a5/0x350 net/socket.c:2542 __sys_sendmsg+0x258/0x440 net/socket.c:2571 __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+0x99/0xe0 net/compat.c:351 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_hdr_push+0x260/0x9f0 net/ieee802154/header_ops.c:89 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:2488 ___sys_sendmsg+0x2a5/0x350 net/socket.c:2542 __sys_sendmsg+0x258/0x440 net/socket.c:2571 __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+0x99/0xe0 net/compat.c:351 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:2488 ___sys_sendmsg+0x2a5/0x350 net/socket.c:2542 __sys_sendmsg+0x258/0x440 net/socket.c:2571 __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+0x99/0xe0 net/compat.c:351 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 dst_addr created at: dgram_sendmsg+0x50/0x1460 net/ieee802154/socket.c:606 ieee802154_sock_sendmsg+0x8d/0xc0 net/ieee802154/socket.c:96 CPU: 1 PID: 5597 Comm: syz-executor.5 Not tainted 5.19.0-rc8-syzkaller-32537-g168a92de0739 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 =====================================================