===================================================== BUG: KMSAN: uninit-value in ieee802154_addr_from_sa include/net/ieee802154_netdev.h:174 [inline] BUG: KMSAN: uninit-value in dgram_sendmsg+0x14ca/0x15d0 net/ieee802154/socket.c:660 CPU: 0 PID: 16169 Comm: syz-executor.3 Not tainted 5.13.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:79 [inline] dump_stack+0x24c/0x2e0 lib/dump_stack.c:120 kmsan_report+0xfb/0x1e0 mm/kmsan/kmsan_report.c:121 __msan_warning+0x5c/0xa0 mm/kmsan/kmsan_instr.c:197 ieee802154_addr_from_sa include/net/ieee802154_netdev.h:174 [inline] dgram_sendmsg+0x14ca/0x15d0 net/ieee802154/socket.c:660 ieee802154_sock_sendmsg+0xec/0x130 net/ieee802154/socket.c:97 sock_sendmsg_nosec net/socket.c:654 [inline] sock_sendmsg net/socket.c:674 [inline] ____sys_sendmsg+0xcfc/0x12f0 net/socket.c:2337 ___sys_sendmsg net/socket.c:2391 [inline] __sys_sendmsg+0x714/0x830 net/socket.c:2420 __compat_sys_sendmsg net/compat.c:347 [inline] __do_compat_sys_sendmsg net/compat.c:354 [inline] __se_compat_sys_sendmsg+0xa7/0xc0 net/compat.c:351 __ia32_compat_sys_sendmsg+0x4a/0x70 net/compat.c:351 do_syscall_32_irqs_on arch/x86/entry/common.c:80 [inline] __do_fast_syscall_32+0x132/0x1b0 arch/x86/entry/common.c:145 do_fast_syscall_32+0x77/0xd0 arch/x86/entry/common.c:171 do_SYSENTER_32+0x73/0x90 arch/x86/entry/common.c:214 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c RIP: 0023:0xf7f69549 Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000f55635fc EFLAGS: 00000296 ORIG_RAX: 0000000000000172 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000020000100 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Local variable ----address.i@__sys_sendmsg created at: ___sys_sendmsg net/socket.c:2381 [inline] __sys_sendmsg+0x30e/0x830 net/socket.c:2420 ___sys_sendmsg net/socket.c:2381 [inline] __sys_sendmsg+0x30e/0x830 net/socket.c:2420 =====================================================