diff options
| -rw-r--r-- | kernel/sched/ext.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/kernel/sched/ext.c b/kernel/sched/ext.c index 00e18eb072bf..8ccb5c7ff55c 100644 --- a/kernel/sched/ext.c +++ b/kernel/sched/ext.c @@ -6913,6 +6913,12 @@ __bpf_kfunc int bpf_iter_scx_dsq_new(struct bpf_iter_scx_dsq *it, u64 dsq_id, BUILD_BUG_ON(__alignof__(struct bpf_iter_scx_dsq_kern) != __alignof__(struct bpf_iter_scx_dsq)); + /* + * next() and destroy() will be called regardless of the return value. + * Always clear $kit->dsq. + */ + kit->dsq = NULL; + sch = rcu_dereference_check(scx_root, rcu_read_lock_bh_held()); if (!sch) return -ENODEV; |