From 45a2ccfa3bdf4c5b3f8b9e0cc5330fca345b0d26 Mon Sep 17 00:00:00 2001 From: Peter Rajnoha Date: Thu, 5 May 2022 11:02:32 +0200 Subject: [PATCH 48/54] toollib: fix segfault when handling selection with historical LVs When processing historical LVs inside process_each_lv_in_vg for selection, we need to use dummy "_historical_lv" for select_match_lv. This is because a historical LV is not an actual LV, but only a tiny representation with subset of original properties that we recorded (name, uuid...). To use the same processing functions we use for full-fledged non-historical LVs, we need to use the prefilled "_historical_lv" structure which has all the other missing properties hard-coded. --- tools/toollib.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/tools/toollib.c b/tools/toollib.c index 697baee82..01ba03658 100644 --- a/tools/toollib.c +++ b/tools/toollib.c @@ -3392,13 +3392,14 @@ int process_each_lv_in_vg(struct cmd_context *cmd, struct volume_group *vg, process_lv = 1; } - process_lv = process_lv && select_match_lv(cmd, handle, vg, lvl->lv) && _select_matches(handle); + _historical_lv.this_glv = glvl->glv; + _historical_lv.name = glvl->glv->historical->name; + + process_lv = process_lv && select_match_lv(cmd, handle, vg, &_historical_lv) && _select_matches(handle); if (!process_lv) continue; - _historical_lv.this_glv = glvl->glv; - _historical_lv.name = glvl->glv->historical->name; log_very_verbose("Processing historical LV %s in VG %s.", glvl->glv->historical->name, vg->name); ret = process_single_lv(cmd, &_historical_lv, handle); -- 2.34.3