Linux kernel -stable discussions
 help / color / mirror / Atom feed
From: Greg KH <gregkh@linuxfoundation.org>
To: 喵公子 <miaogongzi0227@gmail.com>
Cc: stable@vger.kernel.org, regressions@lists.linux.dev
Subject: Re: [REGRESSION] IPv6 RA default router advertisement fails after kernel 6.12.42 updates
Date: Mon, 18 Aug 2025 14:25:21 +0200	[thread overview]
Message-ID: <2025081831-viewable-vanquish-e8bc@gregkh> (raw)
In-Reply-To: <CACBcRw+Fu1B+fXEFvhfsZFtPqa5G=AYSW0K3L2RBWh8YfkgUhg@mail.gmail.com>

On Mon, Aug 18, 2025 at 08:03:00PM +0800, 喵公子 wrote:
> Hi,
> 
> While testing Linux kernel 6.12.42 on OpenWrt, we observed a
> regression in IPv6 Router Advertisement (RA) handling for the default
> router.
> 
> Affected commits
> 
> The following commits appear related and may have introduced the issue:
> 
> ipv6: fix possible infinite loop in fib6_info_uses_dev()：
> https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.12.42&id=db65739d406c72776fbdbbc334be827ef05880d2
> 
> ipv6: prevent infinite loop in rt6_nlmsg_size()：
> https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.12.42&id=cd8d8bbd9ced4cc5d06d858f67d4aa87745e8f38
> 
> ipv6: annotate data-races around rt->fib6_nsiblings：
> https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v6.12.42&id=0c58f74f8aa991c2a63bb58ff743e1ff3d584b62

Does this also happen on the latest kernel releases?

Also, please always include the developers/maintainers/mailing list of
the subsystem where you find an issue with.  Otherwise you are not going
to reach the developers who can help you out.

thanks,

greg k-h

  reply	other threads:[~2025-08-18 12:25 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-08-18 12:03 [REGRESSION] IPv6 RA default router advertisement fails after kernel 6.12.42 updates 喵公子
2025-08-18 12:25 ` Greg KH [this message]
2025-08-18 13:19   ` 喵公子
  -- strict thread matches above, loose matches on Subject: below --
2025-08-20 23:14 喵公子
2025-08-25 23:03 ` Jakub Kicinski

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=2025081831-viewable-vanquish-e8bc@gregkh \
    --to=gregkh@linuxfoundation.org \
    --cc=miaogongzi0227@gmail.com \
    --cc=regressions@lists.linux.dev \
    --cc=stable@vger.kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox