From 5dca02f2ee931aef66bb21dd8067c8b1af1e0d3e Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 8 May 2024 05:21:31 +0200 Subject: Merging upstream version 4.19.260. Signed-off-by: Daniel Baumann --- drivers/android/binder.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'drivers/android/binder.c') diff --git a/drivers/android/binder.c b/drivers/android/binder.c index 35c13be4a..3e57d5682 100644 --- a/drivers/android/binder.c +++ b/drivers/android/binder.c @@ -1809,6 +1809,18 @@ static int binder_inc_ref_for_node(struct binder_proc *proc, } ret = binder_inc_ref_olocked(ref, strong, target_list); *rdata = ref->data; + if (ret && ref == new_ref) { + /* + * Cleanup the failed reference here as the target + * could now be dead and have already released its + * references by now. Calling on the new reference + * with strong=0 and a tmp_refs will not decrement + * the node. The new_ref gets kfree'd below. + */ + binder_cleanup_ref_olocked(new_ref); + ref = NULL; + } + binder_proc_unlock(proc); if (new_ref && ref != new_ref) /* -- cgit v1.2.3