From: patchwork-bot+netdevbpf@kernel.org
To: Wang Yufen <wangyufen@huawei.com>
Cc: davem@davemloft.net, yoshfuji@linux-ipv6.org, dsahern@kernel.org,
edumazet@google.com, kuba@kernel.org, pabeni@redhat.com,
ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org,
kafai@fb.com, songliubraving@fb.com, yhs@fb.com,
john.fastabend@gmail.com, kpsingh@kernel.org,
netdev@vger.kernel.org, bpf@vger.kernel.org
Subject: Re: [PATCH net-next v5 1/2] ipv6: Fix signed integer overflow in __ip6_append_data
Date: Wed, 08 Jun 2022 18:30:13 +0000 [thread overview]
Message-ID: <165471301342.10429.11014081493925297631.git-patchwork-notify@kernel.org> (raw)
In-Reply-To: <20220607120028.845916-1-wangyufen@huawei.com>
Hello:
This series was applied to netdev/net.git (master)
by Jakub Kicinski <kuba@kernel.org>:
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
prev parent reply other threads:[~2022-06-08 18:30 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-07 12:00 [PATCH net-next v5 1/2] ipv6: Fix signed integer overflow in __ip6_append_data Wang Yufen
2022-06-07 12:00 ` [PATCH net-next v5 2/2] ipv6: Fix signed integer overflow in l2tp_ip6_sendmsg Wang Yufen
2022-06-08 18:30 ` patchwork-bot+netdevbpf [this message]
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