[lvc-project] [PATCH net] netlink: avoid infinite retry looping in netlink_unicast()

[Julian Taylor]

On 31.07.25 04:30, patchwork-bot+netdevbpf at kernel.org wrote:
> Hello:
> 
> This patch was applied to netdev/net.git (main)
> by Jakub Kicinski <kuba at kernel.org>:
> 
> On Mon, 28 Jul 2025 11:06:47 +0300 you wrote:
>> netlink_attachskb() checks for the socket's read memory allocation
>> constraints. Firstly, it has:
>>
>>    rmem < READ_ONCE(sk->sk_rcvbuf)
>>
>> to check if the just increased rmem value fits into the socket's receive
>> buffer. If not, it proceeds and tries to wait for the memory under:
>>
>> [...]
> 
> Here is the summary with links:
>    - [net] netlink: avoid infinite retry looping in netlink_unicast()
>      https://git.kernel.org/netdev/net/c/759dfc7d04ba
> 
> You are awesome, thank you!

hello,
as far as I can tell this patch has not made it to the 6.1 stable tree yet in the 6.1.148 review yet:
https://www.spinics.net/lists/stable/msg866199.html

As this seems to be causing issues in distributions releasing 6.1.147 can this still be added to the next possible stable release?
See following issues in relation to loading audit rules which seems to trigger the fixed bug:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1111017
https://github.com/amazonlinux/amazon-linux-2023/issues/988

I have tested this patch solves the problem in the Debian bookworm using 6.1.x

cheers,
Julian Taylor