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| author | Cheng-Yang Chou <yphbchou0911@gmail.com> | 2026-03-14 09:39:34 +0800 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2026-03-13 23:00:53 -1000 |
| commit | e36bc38ebfac95ecd088d4bc0ceb3ffcef2ebdfa (patch) | |
| tree | 94f201b97ee3f37a9faaa7548cc22c9ed72b0056 /kernel/trace | |
| parent | 12b49dd15e4bf4e906759ac445797ba2213e52dd (diff) | |
| download | linux-e36bc38ebfac95ecd088d4bc0ceb3ffcef2ebdfa.tar.gz linux-e36bc38ebfac95ecd088d4bc0ceb3ffcef2ebdfa.zip | |
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: ebeca1f930ea ("sched_ext: Introduce cgroup sub-sched support")
Signed-off-by: Cheng-Yang Chou <yphbchou0911@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'kernel/trace')
0 files changed, 0 insertions, 0 deletions