device-mapper-multipath/0018-multipath-don-t-check-timestamps-without-a-path.patch
Benjamin Marzinski 64b1cb0e21 device-mapper-multipath-0.7.7-1
Update Source to 0.7.7
  * Previous patches 0001-0009 & 0018 are included in this commit
Add upstream patches since 0.7.7
  * patches 0001-0012 are from upstream commits since 0.7.7
Add 0015-mpathpersist-add-all_tg_pt-option.patch
  * add new all_tg_pt multpiath.conf option. posted upstream
Add 0016-libmultipath-remove-rbd-code.patch
  * remove unused rbd code. posted upstream
Add 0017-mpathpersist-fix-aptpl-support.patch
  * add ":aptpl" suffix for reservation_key to fix aptpl support.
    posted upstream
Add 0018-multipath-don-t-check-timestamps-without-a-path.patch
  * fix multipath null dereference crash. posted upstream
Add 0019-libmultipath-fix-detect-alua-corner-case.patch
  * fix alua detection with retain_hardware_handler set to off. posted
    upstream
Add 0020-multipath-fix-setting-conf-version.patch
  * multipath wasn't setting the kernel version correctly. posted
    upstream
Add 0028-RH-reset-default-find_mutipaths-value-to-off.patch
  * default to RHEL7 and older device detection style. Redhat specific,
    to keep customer experience the same.
Rename files
  * Previous patches 0010-0011 are now patches 0013-0014
  * Previous patches 0012-0017 & 0019 are now patches 0021-0027
Modify 0021-RH-fixup-udev-rules-for-redhat.patch
  * Fix spurious compile warning with redhat compile options
2018-06-12 14:11:55 -05:00

35 lines
1.2 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Benjamin Marzinski <bmarzins@redhat.com>
Date: Tue, 5 Jun 2018 15:31:55 -0500
Subject: [PATCH] multipath: don't check timestamps without a path
If a path was blacklisted, pathvec could exist but have no path in it.
print_cmd_valid wasn't checking this before calling
find_multipaths_check_timeout(). This was causing it to dereference a
NULL pointer in these cases.
Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com>
---
multipath/main.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/multipath/main.c b/multipath/main.c
index c69e996..3f0a6aa 100644
--- a/multipath/main.c
+++ b/multipath/main.c
@@ -482,10 +482,8 @@ static int print_cmd_valid(int k, const vector pathvec,
pp, pp->find_multipaths_timeout, &until);
if (wait != FIND_MULTIPATHS_WAITING)
k = 1;
- } else if (pathvec != NULL) {
- pp = VECTOR_SLOT(pathvec, 0);
+ } else if (pathvec != NULL && (pp = VECTOR_SLOT(pathvec, 0)))
wait = find_multipaths_check_timeout(pp, 0, &until);
- }
if (wait == FIND_MULTIPATHS_WAITING)
printf("FIND_MULTIPATHS_WAIT_UNTIL=\"%ld.%06ld\"\n",
until.tv_sec, until.tv_nsec/1000);
--
2.7.4