/* * Regression3 * Description: * Helper radix_tree_iter_retry resets next_index to the current index. * In following radix_tree_next_slot current chunk size becomes zero. * This isn't checked and it tries to dereference null pointer in slot. * * Helper radix_tree_iter_resume reset slot to NULL and next_index to index + 1, * for tagger iteraction it also must reset cached tags in iterator to abort * next radix_tree_next_slot and go to slow-path into radix_tree_next_chunk. * * Running: * This test should run to completion immediately. The above bug would * cause it to segfault. * * Upstream commit: * Not yet */ #include #include #include #include #include #include #include "regression.h" void regression3_test(void) { RADIX_TREE(root, GFP_KERNEL); void *ptr0 = (void *)4ul; void *ptr = (void *)8ul; struct radix_tree_iter iter; void **slot; bool first; printf("running regression test 3 (should take milliseconds)\n"); radix_tree_insert(&root, 0, ptr0); radix_tree_tag_set(&root, 0, 0); first = true; radix_tree_for_each_tagged(slot, &root, &iter, 0, 0) { printf("tagged %ld %p\n", iter.index, *slot); if (first) { radix_tree_insert(&root, 1, ptr); radix_tree_tag_set(&root, 1, 0); first = false; } if (radix_tree_deref_retry(*slot)) { printf("retry at %ld\n", iter.index); slot = radix_tree_iter_retry(&iter); continue; } } radix_tree_delete(&root, 1); first = true; radix_tree_for_each_slot(slot, &root, &iter, 0) { printf("slot %ld %p\n", iter.index, *slot); if (first) { radix_tree_insert(&root, 1, ptr); first = false; } if (radix_tree_deref_retry(*slot)) { printk("retry at %ld\n", iter.index); slot = radix_tree_iter_retry(&iter); continue; } } radix_tree_delete(&root, 1); first = true; radix_tree_for_each_contig(slot, &root, &iter, 0) { printk("contig %ld %p\n", iter.index, *slot); if (first) { radix_tree_insert(&root, 1, ptr); first = false; } if (radix_tree_deref_retry(*slot)) { printk("retry at %ld\n", iter.index); slot = radix_tree_iter_retry(&iter); continue; } } radix_tree_for_each_slot(slot, &root, &iter, 0) { printf("slot %ld %p\n", iter.index, *slot); if (!iter.index) { printf("next at %ld\n", iter.index); slot = radix_tree_iter_resume(slot, &iter); } } radix_tree_for_each_contig(slot, &root, &iter, 0) { printf("contig %ld %p\n", iter.index, *slot); if (!iter.index) { printf("next at %ld\n", iter.index); slot = radix_tree_iter_resume(slot, &iter); } } radix_tree_tag_set(&root, 0, 0); radix_tree_tag_set(&root, 1, 0); radix_tree_for_each_tagged(slot, &root, &iter, 0, 0) { printf("tagged %ld %p\n", iter.index, *slot); if (!iter.index) { printf("next at %ld\n", iter.index); slot = radix_tree_iter_resume(slot, &iter); } } radix_tree_delete(&root, 0); radix_tree_delete(&root, 1); printf("regression test 3 passed\n"); } f24'>include/drm

Mode	Name	Size
-rw-r--r--	ati_pcigart.h	692	log plain
d---------	bridge	111	log plain
-rw-r--r--	drmP.h	25758	log plain
-rw-r--r--	drm_agpsupport.h	3867	log plain
-rw-r--r--	drm_atomic.h	14443	log plain
-rw-r--r--	drm_atomic_helper.h	10607	log plain
-rw-r--r--	drm_auth.h	2260	log plain
-rw-r--r--	drm_blend.h	2700	log plain
-rw-r--r--	drm_bridge.h	7977	log plain
-rw-r--r--	drm_cache.h	1763	log plain
-rw-r--r--	drm_color_mgmt.h	2166	log plain
-rw-r--r--	drm_connector.h	28613	log plain
-rw-r--r--	drm_crtc.h	28999	log plain
-rw-r--r--	drm_crtc_helper.h	3301	log plain
-rw-r--r--	drm_debugfs_crc.h	2670	log plain
-rw-r--r--	drm_displayid.h	2850	log plain
-rw-r--r--	drm_dp_dual_mode_helper.h	4532	log plain
-rw-r--r--	drm_dp_helper.h	30638	log plain
-rw-r--r--	drm_dp_mst_helper.h	16260	log plain
-rw-r--r--	drm_drv.h	14861	log plain
-rw-r--r--	drm_edid.h	14335	log plain
-rw-r--r--	drm_encoder.h	8160	log plain
-rw-r--r--	drm_encoder_slave.h	6583	log plain
-rw-r--r--	drm_fb_cma_helper.h	1929	log plain
-rw-r--r--	drm_fb_helper.h	15125	log plain
-rw-r--r--	drm_fixed.h	4825	log plain
-rw-r--r--	drm_flip_work.h	3071	log plain
-rw-r--r--	drm_fourcc.h	2748	log plain
-rw-r--r--	drm_framebuffer.h	9623	log plain
-rw-r--r--	drm_gem.h	8052	log plain
-rw-r--r--	drm_gem_cma_helper.h	2286	log plain
-rw-r--r--	drm_global.h	2011	log plain
-rw-r--r--	drm_hashtab.h	3139	log plain
-rw-r--r--	drm_irq.h	6323	log plain
-rw-r--r--	drm_legacy.h	6933	log plain
-rw-r--r--	drm_mem_util.h	2468	log plain
-rw-r--r--	drm_mipi_dsi.h	10327	log plain
-rw-r--r--	drm_mm.h	11462	log plain
-rw-r--r--	drm_mode_config.h	23728	log plain
-rw-r--r--	drm_mode_object.h	4911	log plain
-rw-r--r--	drm_modes.h	17078	log plain
-rw-r--r--	drm_modeset_helper.h	1576	log plain
-rw-r--r--	drm_modeset_helper_vtables.h	41180	log plain
-rw-r--r--	drm_modeset_lock.h	4241	log plain
-rw-r--r--	drm_of.h	2034	log plain
-rw-r--r--	drm_os_linux.h	2230	log plain
-rw-r--r--	drm_panel.h	7079	log plain
-rw-r--r--	drm_pciids.h	68035	log plain
-rw-r--r--	drm_plane.h	19435	log plain
-rw-r--r--	drm_plane_helper.h	3186	log plain
-rw-r--r--	drm_print.h	3232	log plain
-rw-r--r--	drm_property.h	11460	log plain
-rw-r--r--	drm_rect.h	5103	log plain
-rw-r--r--	drm_simple_kms_helper.h	4090	log plain
-rw-r--r--	drm_sysfs.h	300	log plain
-rw-r--r--	drm_vma_manager.h	7840	log plain
-rw-r--r--	gma_drm.h	1033	log plain
d---------	i2c	109	log plain