[GIT PULL] cgroup: Fixes for v7.3-rc3

From: Tejun Heo

Date: Tue Sep 15 2026 - 13:48:21 EST


Hello,

The following changes since commit 3f4b7d1a49c5c826f3be9b684313eea5b83ac232:

selftests/cgroup: test clone3() into a previously killed cgroup (2026-08-31 06:19:53 -1000)

are available in the Git repository at:

https://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git tags/cgroup-for-7.3-rc3-fixes

for you to fetch changes up to 057dac23d329d5c5ed62352f2659a39fd46c6d4a:

cgroup: Avoid iteration of dying tasks with zero refcount (2026-09-14 12:43:50 -1000)

----------------------------------------------------------------
cgroup: Fixes for v7.3-rc3

- The task iterator could pick up a dying task whose refcount had already
dropped to zero and resurrect it, leading to a use-after-free when
reading cgroup.procs. Skip such tasks.

----------------------------------------------------------------
Michal Koutný (1):
cgroup: Avoid iteration of dying tasks with zero refcount

kernel/cgroup/cgroup.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)

--
tejun