Hello: This series was applied to netdev/net.git (master) by Jakub Kicinski <kuba@xxxxxxxxxx>: On Tue, 7 Jun 2022 20:00:27 +0800 you wrote: > Resurrect ubsan overflow checks and ubsan report this warning, > fix it by change the variable [length] type to size_t. > > UBSAN: signed-integer-overflow in net/ipv6/ip6_output.c:1489:19 > 2147479552 + 8567 cannot be represented in type 'int' > CPU: 0 PID: 253 Comm: err Not tainted 5.16.0+ #1 > Hardware name: linux,dummy-virt (DT) > Call trace: > dump_backtrace+0x214/0x230 > show_stack+0x30/0x78 > dump_stack_lvl+0xf8/0x118 > dump_stack+0x18/0x30 > ubsan_epilogue+0x18/0x60 > handle_overflow+0xd0/0xf0 > __ubsan_handle_add_overflow+0x34/0x44 > __ip6_append_data.isra.48+0x1598/0x1688 > ip6_append_data+0x128/0x260 > udpv6_sendmsg+0x680/0xdd0 > inet6_sendmsg+0x54/0x90 > sock_sendmsg+0x70/0x88 > ____sys_sendmsg+0xe8/0x368 > ___sys_sendmsg+0x98/0xe0 > __sys_sendmmsg+0xf4/0x3b8 > __arm64_sys_sendmmsg+0x34/0x48 > invoke_syscall+0x64/0x160 > el0_svc_common.constprop.4+0x124/0x300 > do_el0_svc+0x44/0xc8 > el0_svc+0x3c/0x1e8 > el0t_64_sync_handler+0x88/0xb0 > el0t_64_sync+0x16c/0x170 > > [...] Here is the summary with links: - [net-next,v5,1/2] ipv6: Fix signed integer overflow in __ip6_append_data https://git.kernel.org/netdev/net/c/f93431c86b63 - [net-next,v5,2/2] ipv6: Fix signed integer overflow in l2tp_ip6_sendmsg https://git.kernel.org/netdev/net/c/f638a84afef3 You are awesome, thank you! -- Deet-doot-dot, I am a bot. https://korg.docs.kernel.org/patchwork/pwbot.html