Skip to content

kata-containers-cc: fix tarfs build with kernel 6.6+ (i_ctime removal) #17776

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Draft
romoh wants to merge 1 commit into
base: 3.0-dev
Choose a base branch
from
+52 −1
Draft

kata-containers-cc: fix tarfs build with kernel 6.6+ (i_ctime removal) #17776

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
6 changes: 5 additions & 1 deletion SPECS/kata-containers-cc/kata-containers-cc.spec
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -3,7 +3,7 @@

Name: kata-containers-cc
Version: 3.15.0.aks0
Release: 13%{?dist}
Release: 14%{?dist}
Summary: Kata Confidential Containers package developed for Confidential Containers on AKS
License: ASL 2.0
URL: https://github.com/microsoft/kata-containers
Expand All @@ -15,6 +15,7 @@ Patch0: rust-1.90-fixes.patch
Patch1: CVE-2026-41602.patch
Patch2: CVE-2026-39821.patch
Patch3: CVE-2026-33814.patch
Patch4: tarfs-fix-ictime-kernel-6.6.patch
ExclusiveArch: x86_64

BuildRequires: azurelinux-release
Expand Down Expand Up @@ -153,6 +154,9 @@ fi
%{tools_pkg}/tools/osbuilder/node-builder/azure-linux/agent-install/usr/lib/systemd/system/kata-agent.service

%changelog
* Mon Jun 16 2026 Roaa Sakr <romoh@microsoft.com> - 3.15.0.aks0-14
- Fix tarfs kernel module build failure with kernel 6.6+ (i_ctime removed from struct inode)

* Fri Jun 05 2026 BinduSri Adabala <v-badabala@microsoft.com> - 3.15.0-aks0-13
- Bump release to rebuild with rust

Expand Down
47 changes: 47 additions & 0 deletions SPECS/kata-containers-cc/tarfs-fix-ictime-kernel-6.6.patch
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1,47 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Roaa Sakr <romoh@microsoft.com>
Date: Mon, 16 Jun 2026 00:00:00 +0000
Subject: [PATCH] tarfs: use inode_set_ctime accessor for kernel 6.6+

Linux kernel 6.6 removed the i_ctime field from struct inode and replaced
it with accessor functions inode_set_ctime() and inode_get_ctime(). The
tarfs kernel module directly accessed inode->i_ctime, which fails to
compile against kernel headers >= 6.6.

Use a LINUX_VERSION_CODE guard to call inode_set_ctime() on 6.6+ while
preserving backward compatibility with older kernels.

Signed-off-by: Roaa Sakr <romoh@microsoft.com>
---
src/tarfs/tarfs.c | 17 ++++++++++++++---
1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/src/tarfs/tarfs.c b/src/tarfs/tarfs.c
index 92de8bc..47450eb 100644
--- a/src/tarfs/tarfs.c
+++ b/src/tarfs/tarfs.c
@@ -319,9 +319,19 @@ static struct inode *tarfs_iget(struct super_block *sb, u64 ino)

set_nlink(inode, 1);

- inode->i_mtime.tv_sec = inode->i_atime.tv_sec = inode->i_ctime.tv_sec =
- (((u64)disk_inode.hmtime & 0xf) << 32) | le32_to_cpu(disk_inode.lmtime);
- inode->i_mtime.tv_nsec = inode->i_atime.tv_nsec = inode->i_ctime.tv_nsec = 0;
+ {
+ u64 ts_sec = (((u64)disk_inode.hmtime & 0xf) << 32) |
+ le32_to_cpu(disk_inode.lmtime);
+
+ inode->i_mtime.tv_sec = inode->i_atime.tv_sec = ts_sec;
+ inode->i_mtime.tv_nsec = inode->i_atime.tv_nsec = 0;
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(6, 6, 0)
+ inode_set_ctime(inode, ts_sec, 0);
+#else
+ inode->i_ctime.tv_sec = ts_sec;
+ inode->i_ctime.tv_nsec = 0;
+#endif
+ }

inode->i_mode = mode;
inode->i_size = le64_to_cpu(disk_inode.size);
--
2.39.0