Files
linux/kernel
Cheng-Yang Chou e36bc38ebf sched_ext: Fix uninitialized ret in scx_alloc_and_add_sched()
Under CONFIG_EXT_SUB_SCHED, the kzalloc() and kstrdup() failure
paths jump to err_stop_helper without first setting ret. The
function then returns ERR_PTR(ret) with ret uninitialized, which
can produce ERR_PTR(0) (NULL), causing the caller's IS_ERR() check
to pass and leading to a NULL pointer dereference.

Set ret = -ENOMEM before each goto to fix the error path.

Fixes: ebeca1f930 ("sched_ext: Introduce cgroup sub-sched support")
Signed-off-by: Cheng-Yang Chou <yphbchou0911@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2026-03-13 23:00:53 -10:00
..
2026-03-05 18:15:58 -10:00
2026-01-05 16:43:34 +01:00
2025-11-04 08:30:50 +01:00
2025-10-29 10:29:54 +01:00
2026-01-26 19:07:13 -08:00