From: Tiffany Yang Date: Mon, 14 Jul 2025 18:53:14 +0000 (-0700) Subject: binder: Fix selftest page indexing X-Git-Tag: v6.16.2~429 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=0fddc6f9509cf1a4ffc0bfc31a36ca7cbdd8b5b8;p=thirdparty%2Fkernel%2Fstable.git binder: Fix selftest page indexing [ Upstream commit bea3e7bfa2957d986683543cbf57092715f9a91b ] The binder allocator selftest was only checking the last page of buffers that ended on a page boundary. Correct the page indexing to account for buffers that are not page-aligned. Signed-off-by: Tiffany Yang Acked-by: Carlos Llamas Link: https://lore.kernel.org/r/20250714185321.2417234-2-ynaffit@google.com Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- diff --git a/drivers/android/binder_alloc_selftest.c b/drivers/android/binder_alloc_selftest.c index c88735c548485..486af3ec3c027 100644 --- a/drivers/android/binder_alloc_selftest.c +++ b/drivers/android/binder_alloc_selftest.c @@ -142,12 +142,12 @@ static void binder_selftest_free_buf(struct binder_alloc *alloc, for (i = 0; i < BUFFER_NUM; i++) binder_alloc_free_buf(alloc, buffers[seq[i]]); - for (i = 0; i < end / PAGE_SIZE; i++) { /** * Error message on a free page can be false positive * if binder shrinker ran during binder_alloc_free_buf * calls above. */ + for (i = 0; i <= (end - 1) / PAGE_SIZE; i++) { if (list_empty(page_to_lru(alloc->pages[i]))) { pr_err_size_seq(sizes, seq); pr_err("expect lru but is %s at page index %d\n",