Re: [PATCH 6.6 0000/1674] 6.6.160-rc1 review

On Mon, Oct 19, 2026 at 06:02:37AM +0200, Peter Schneider wrote:

# first bad commit: [7c1e132b0967210526de05e7af6f1c26ad0c1516] sysfs: Introduce a mechanism to hide static attribute_groups

Thanks for bisecting this.

I think the problem is, that if you take this patch for stable, you need to also take the patch which is upstream [ cd69fedf58f8ab1ab511f7c6ac1969cebf1c935f] sysfs: Fix crash on empty group attributes array. It addresses the exact crash that I've run into.

Rather than adding cd69fedf58f8, I dropped d87c295f599c ("sysfs: Introduce a mechanism to hide static attribute_groups") and its dependent c7fbb8218b4a ("sysfs: check visibility before changing group attribute ownership") from the 6.6 and 6.1 queues.