File util-linux-lscpu-robust-min-max-freq.patch of Package util-linux-systemd.8490

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File util-linux-lscpu-robust-min-max-freq.patch of Package util-linux-systemd.8490

From 0145d84a381fc2fcd7d37e0dbf3d9dff69609ecd Mon Sep 17 00:00:00 2001
From: Karel Zak <kzak@redhat.com>
Date: Thu, 1 Jun 2017 12:15:23 +0200
Subject: [PATCH] lscpu: make min/max freq arrays usage more robust

The array members may be NULL on some architectures (e.g. AMD). Let's
be paranoid and check for the NULL independently on present/online
masks.

Addresses: https://bugzilla.redhat.com/show_bug.cgi?id=1457744
Signed-off-by: Karel Zak <kzak@redhat.com>
---
 sys-utils/lscpu.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/sys-utils/lscpu.c b/sys-utils/lscpu.c
index dc998267a..3b549a7a0 100644
--- a/sys-utils/lscpu.c
+++ b/sys-utils/lscpu.c
@@ -1264,7 +1264,8 @@ cpu_max_mhz(struct lscpu_desc *desc, char *buf, size_t bufsz)
 
 	if (desc->present) {
 		for (i = 1; i < desc->ncpuspos; i++) {
-			if (CPU_ISSET(real_cpu_num(desc, i), desc->present)) {
+			if (CPU_ISSET(real_cpu_num(desc, i), desc->present)
+			    && desc->maxmhz[i]) {
 				float freq = atof(desc->maxmhz[i]);
 
 				if (freq > cpu_freq)
@@ -1285,7 +1286,8 @@ cpu_min_mhz(struct lscpu_desc *desc, char *buf, size_t bufsz)
 
 	if (desc->present) {
 		for (i = 1; i < desc->ncpuspos; i++) {
-			if (CPU_ISSET(real_cpu_num(desc, i), desc->present)) {
+			if (CPU_ISSET(real_cpu_num(desc, i), desc->present)
+			    && desc->minmhz[i]) {
 				float freq = atof(desc->minmhz[i]);
 
 				if (freq < cpu_freq)
@@ -1597,11 +1599,11 @@ get_cell_data(struct lscpu_desc *desc, int idx, int col,
 				 is_cpu_online(desc, cpu) ? _("yes") : _("no"));
 		break;
 	case COL_MAXMHZ:
-		if (desc->maxmhz)
+		if (desc->maxmhz && desc->maxmhz[idx])
 			xstrncpy(buf, desc->maxmhz[idx], bufsz);
 		break;
 	case COL_MINMHZ:
-		if (desc->minmhz)
+		if (desc->minmhz && desc->minmhz[idx])
 			xstrncpy(buf, desc->minmhz[idx], bufsz);
 		break;
 	}
-- 
2.14.3

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File util-linux-lscpu-robust-min-max-freq.patch of Package util-linux-systemd.8490

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