123 lines
4.1 KiB
Diff
123 lines
4.1 KiB
Diff
From a95a92b104b388b5decac4b66f4cf15d5676a782 Mon Sep 17 00:00:00 2001
|
|
From: fengtao40 <fengtao40@huawei.com>
|
|
Date: Tue, 11 Feb 2020 21:22:20 -0500
|
|
Subject: [PATCH] Fix id_string buffer overflows
|
|
|
|
---
|
|
lib/ipmi_fru.c | 2 +-
|
|
lib/ipmi_sdr.c | 40 ++++++++++++++++++++++++----------------
|
|
2 files changed, 25 insertions(+), 17 deletions(-)
|
|
|
|
diff --git a/lib/ipmi_fru.c b/lib/ipmi_fru.c
|
|
index 7911bae..e5b637c 100644
|
|
--- a/lib/ipmi_fru.c
|
|
+++ b/lib/ipmi_fru.c
|
|
@@ -3027,7 +3027,7 @@ ipmi_fru_print(struct ipmi_intf * intf, struct sdr_record_fru_locator * fru)
|
|
return 0;
|
|
|
|
memset(desc, 0, sizeof(desc));
|
|
- memcpy(desc, fru->id_string, fru->id_code & 0x01f);
|
|
+ memcpy(desc, fru->id_string, __min(fru->id_code & 0x01f, sizeof(desc)));
|
|
desc[fru->id_code & 0x01f] = 0;
|
|
printf("FRU Device Description : %s (ID %d)\n", desc, fru->device_id);
|
|
|
|
diff --git a/lib/ipmi_sdr.c b/lib/ipmi_sdr.c
|
|
index e5ee115..254073d 100644
|
|
--- a/lib/ipmi_sdr.c
|
|
+++ b/lib/ipmi_sdr.c
|
|
@@ -2086,7 +2086,7 @@ ipmi_sdr_print_sensor_eventonly(struct ipmi_intf *intf,
|
|
return -1;
|
|
|
|
memset(desc, 0, sizeof (desc));
|
|
- snprintf(desc, (sensor->id_code & 0x1f) + 1, "%s", sensor->id_string);
|
|
+ snprintf(desc, sizeof(desc), "%.*s", (sensor->id_code & 0x1f) + 1, sensor->id_string);
|
|
|
|
if (verbose) {
|
|
printf("Sensor ID : %s (0x%x)\n",
|
|
@@ -2137,7 +2137,7 @@ ipmi_sdr_print_sensor_mc_locator(struct ipmi_intf *intf,
|
|
return -1;
|
|
|
|
memset(desc, 0, sizeof (desc));
|
|
- snprintf(desc, (mc->id_code & 0x1f) + 1, "%s", mc->id_string);
|
|
+ snprintf(desc, sizeof(desc), "%.*s", (mc->id_code & 0x1f) + 1, mc->id_string);
|
|
|
|
if (verbose == 0) {
|
|
if (csv_output)
|
|
@@ -2230,7 +2230,7 @@ ipmi_sdr_print_sensor_generic_locator(struct ipmi_intf *intf,
|
|
char desc[17];
|
|
|
|
memset(desc, 0, sizeof (desc));
|
|
- snprintf(desc, (dev->id_code & 0x1f) + 1, "%s", dev->id_string);
|
|
+ snprintf(desc, sizeof(desc), "%.*s", (dev->id_code & 0x1f) + 1, dev->id_string);
|
|
|
|
if (!verbose) {
|
|
if (csv_output)
|
|
@@ -2287,7 +2287,7 @@ ipmi_sdr_print_sensor_fru_locator(struct ipmi_intf *intf,
|
|
char desc[17];
|
|
|
|
memset(desc, 0, sizeof (desc));
|
|
- snprintf(desc, (fru->id_code & 0x1f) + 1, "%s", fru->id_string);
|
|
+ snprintf(desc, sizeof(desc), "%.*s", (fru->id_code & 0x1f) + 1, fru->id_string);
|
|
|
|
if (!verbose) {
|
|
if (csv_output)
|
|
@@ -2491,35 +2491,43 @@ ipmi_sdr_print_name_from_rawentry(struct ipmi_intf *intf, uint16_t id,
|
|
|
|
int rc =0;
|
|
char desc[17];
|
|
+ const char *id_string;
|
|
+ uint8_t id_code;
|
|
memset(desc, ' ', sizeof (desc));
|
|
|
|
switch ( type) {
|
|
case SDR_RECORD_TYPE_FULL_SENSOR:
|
|
record.full = (struct sdr_record_full_sensor *) raw;
|
|
- snprintf(desc, (record.full->id_code & 0x1f) +1, "%s",
|
|
- (const char *)record.full->id_string);
|
|
+ id_code = record.full->id_code;
|
|
+ id_string = record.full->id_string;
|
|
break;
|
|
+
|
|
case SDR_RECORD_TYPE_COMPACT_SENSOR:
|
|
record.compact = (struct sdr_record_compact_sensor *) raw ;
|
|
- snprintf(desc, (record.compact->id_code & 0x1f) +1, "%s",
|
|
- (const char *)record.compact->id_string);
|
|
+ id_code = record.compact->id_code;
|
|
+ id_string = record.compact->id_string;
|
|
break;
|
|
+
|
|
case SDR_RECORD_TYPE_EVENTONLY_SENSOR:
|
|
record.eventonly = (struct sdr_record_eventonly_sensor *) raw ;
|
|
- snprintf(desc, (record.eventonly->id_code & 0x1f) +1, "%s",
|
|
- (const char *)record.eventonly->id_string);
|
|
- break;
|
|
+ id_code = record.eventonly->id_code;
|
|
+ id_string = record.eventonly->id_string;
|
|
+ break;
|
|
+
|
|
case SDR_RECORD_TYPE_MC_DEVICE_LOCATOR:
|
|
record.mcloc = (struct sdr_record_mc_locator *) raw ;
|
|
- snprintf(desc, (record.mcloc->id_code & 0x1f) +1, "%s",
|
|
- (const char *)record.mcloc->id_string);
|
|
+ id_code = record.mcloc->id_code;
|
|
+ id_string = record.mcloc->id_string;
|
|
break;
|
|
+
|
|
default:
|
|
rc = -1;
|
|
- break;
|
|
- }
|
|
+ }
|
|
+ if (!rc) {
|
|
+ snprintf(desc, sizeof(desc), "%.*s", (id_code & 0x1f) + 1, id_string);
|
|
+ }
|
|
|
|
- lprintf(LOG_INFO, "ID: 0x%04x , NAME: %-16s", id, desc);
|
|
+ lprintf(LOG_INFO, "ID: 0x%04x , NAME: %-16s", id, desc);
|
|
return rc;
|
|
}
|
|
|
|
--
|
|
2.19.1
|
|
|