[SRU][Noble][PULL] Noble upstream stable patchset 2026-09-14

[bethany.jamison at canonical.com]

This pull request (4 commits) includes the following Noble stable patchsets:

        Noble update: upstream stable patchset 2026-09-14
                 Ported from the following upstream stable releases:
                         v6.6.146, v6.12.98, v6.6.147, v6.12.99, v6.12.100
        https://bugs.launchpad.net/bugs/2167237

Note also that the 'stable-next' branch head contains this and all
prior pending upstream stable releases. I recommend fetching and
applying just this reference ('stable-next') instead of each
tags/noble-stable-* reference:

  git://git.launchpad.net/~ubuntu-kernel-stable/+git/noble stable-next

 -Bethany Jamison

------------------------------------------------------------------------

The following changes since commit f80079a2d8a4b7023d717115dff1edd423c29e9e:

  UBUNTU: Upstream stable to v6.6.145, v6.12.96, v6.12.97 (2026-09-10 18:42:50 +0200)

are available in the Git repository at:

  git://git.launchpad.net/~ubuntu-kernel-stable/+git/noble tags/noble-stable-2026-09-14

for you to fetch changes up to 0feac204f4a17eef6694c5b338932e642a22dfce:

  UBUNTU: Upstream stable to v6.6.146, v6.12.98, v6.6.147, v6.12.99, v6.12.100 (2026-09-14 10:33:31 -0500)

----------------------------------------------------------------
Bethany Jamison (1):
      UBUNTU: Upstream stable to v6.6.146, v6.12.98, v6.6.147, v6.12.99, v6.12.100

Lorenzo Stoakes (1):
      mm: refactor mm_access() to not return NULL

Thomas Gleixner (1):
      posix-cpu-timers: Prevent UAF caused by non-leader exec() race

Yun Zhou (1):
      ext4: fix fd leak in EXT4_IOC_MOVE_EXT cross-sb validation

 debian.master/upstream-stable  |   4 +-
 fs/ext4/ioctl.c                |   6 +-
 fs/proc/base.c                 |  26 ++---
 kernel/exit.c                  |   8 +-
 kernel/fork.c                  |   5 +-
 kernel/signal.c                |  10 +-
 kernel/time/posix-cpu-timers.c | 212 ++++++++++++++++++++++++-----------------
 mm/madvise.c                   |   4 +-
 mm/process_vm_access.c         |   4 +-
 9 files changed, 170 insertions(+), 109 deletions(-)