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
next prev parent 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
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