Re: Linux 6.19.4 - Oops, regression

[Greg KH <gregkh@linuxfoundation.org>]

On Thu, Feb 26, 2026 at 11:46:02PM -0500, Kris Karas (Bug Reporting) wrote:
> GregKH wrote:
> > I'm announcing the release of the 6.19.4 kernel.
> > All users of the 6.19 kernel series must upgrade.
> 
> Just tried 6.19.4 (and 6.18.14) and am getting a repeatable Oops right when
> networking is initialized, likely when nft is loading its ruleset from
> /etc/nftables/*.conf
> 
> Once the nft Oops triggers, other processes start to throw errors with
> memory allocate/free, resulting very quickly in an unusable system. I have
> several systems that run iptables, which are unaffected, notably my border
> router with 400+ rules. I have three systems running nftables, one of which
> is affected, the affected one having the more sophisticated nft ruleset
> (bridging, 802.1Q, etc).

Ick, not good.  Can you do 'git bisect' to find the problem commit?  As
you have a pretty reliable reproducer it should go pretty fast.

But first, does 7.0-rc1 work or also crash the same way?

thanks,

greg k-h