netdev - Re: [PATCH v3] net: ipv6/addrconf: avoid integer underflow in ipv6_create

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date: Mon, 04 Sep 2023 06:21:05 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Alex Henrie <alexhenrie24@...il.com>
Cc: netdev@...r.kernel.org, jbohac@...e.cz, benoit.boissinot@...-lyon.org,
 davem@...emloft.net, hideaki.yoshifuji@...aclelinux.com, dsahern@...nel.org,
 pabeni@...hat.com, kuba@...nel.org
Subject: Re: [PATCH v3] net: ipv6/addrconf: avoid integer underflow in
 ipv6_create_tempaddr

Hello:

This patch was applied to netdev/net.git (main)
by David S. Miller <davem@...emloft.net>:

On Thu, 31 Aug 2023 22:41:27 -0600 you wrote:
> The existing code incorrectly casted a negative value (the result of a
> subtraction) to an unsigned value without checking. For example, if
> /proc/sys/net/ipv6/conf/*/temp_prefered_lft was set to 1, the preferred
> lifetime would jump to 4 billion seconds. On my machine and network the
> shortest lifetime that avoided underflow was 3 seconds.
> 
> Fixes: 76506a986dc3 ("IPv6: fix DESYNC_FACTOR")
> Signed-off-by: Alex Henrie <alexhenrie24@...il.com>
> 
> [...]

Here is the summary with links:
  - [v3] net: ipv6/addrconf: avoid integer underflow in ipv6_create_tempaddr
    https://git.kernel.org/netdev/net/c/f31867d0d9d8

You are awesome, thank you!
-- 
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html