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=v...
ipv6: prevent infinite loop in rt6_nlmsg_size()： https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v...
ipv6: annotate data-races around rt->fib6_nsiblings： https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v...
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