Re: [PATCH 5.10.y v2 0/2] Backport 2 commits to fix a KASAN ext4 splat

[Greg KH <gregkh@linuxfoundation.org>]

On Wed, Dec 17, 2025 at 10:55:56AM +0100, David Nyström wrote:
> Backport commit:5701875f9609 ("ext4: fix out-of-bound read in
> ext4_xattr_inode_dec_ref_all()" to linux 5.10 branch.
> The fix depends on commit:69f3a3039b0d ("ext4: introduce ITAIL helper")
> In order to make a clean backport on stable kernel, backport 2 commits.
> 
> It has a single merge conflict where static inline int, which changed 
> to static int.
> 
> Signed-off-by: David Nyström <david.nystrom@est.tech>
> ---
> Changes in v2:
> - Resend identical patchset with correct "Upstream commit" denotation.
> - Link to v1: https://patch.msgid.link/20251216-ext4_splat-v1-0-b76fd8748f44@est.tech
> 
> ---
> Ye Bin (2):
>       ext4: introduce ITAIL helper
>       ext4: fix out-of-bound read in ext4_xattr_inode_dec_ref_all()
> 
>  fs/ext4/inode.c |  5 +++++
>  fs/ext4/xattr.c | 32 ++++----------------------------
>  fs/ext4/xattr.h | 10 ++++++++++
>  3 files changed, 19 insertions(+), 28 deletions(-)
> ---
> base-commit: f964b940099f9982d723d4c77988d4b0dda9c165
> change-id: 20251215-ext4_splat-f59c1acd9e88
> 
> Best regards,
> --  
> David Nyström <david.nystrom@est.tech>
> 
> 

We can't take patches only for an older kernel tree, and not newer ones.
Otherwise you will have a regression when upgrading.

Please resend patches for all applicable kernel trees and we will be
glad to queue them all up.

thanks

greg k-h