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From: Lidong Chen <lidong.chen@oracle.com>
To: qemu-devel@nongnu.org
Cc: f4bug@amsat.org, darren.kenny@oracle.com,
	liam.merwick@oracle.com, lidong.chen@oracle.com
Subject: [Qemu-devel] [PATCH] sd: Fix out-of-bounds assertions
Date: Mon,  8 Apr 2019 15:04:36 -0400	[thread overview]
Message-ID: <1554750276-19230-1-git-send-email-lidong.chen@oracle.com> (raw)

Due to an off-by-one error, the assert statements allow an
out-of-bounds array access.

Signed-off-by: Lidong Chen <lidong.chen@oracle.com>
---
 hw/sd/sd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/hw/sd/sd.c b/hw/sd/sd.c
index aaab15f..818f86c 100644
--- a/hw/sd/sd.c
+++ b/hw/sd/sd.c
@@ -144,7 +144,7 @@ static const char *sd_state_name(enum SDCardStates state)
     if (state == sd_inactive_state) {
         return "inactive";
     }
-    assert(state <= ARRAY_SIZE(state_name));
+    assert(state < ARRAY_SIZE(state_name));
     return state_name[state];
 }
 
@@ -165,7 +165,7 @@ static const char *sd_response_name(sd_rsp_type_t rsp)
     if (rsp == sd_r1b) {
         rsp = sd_r1;
     }
-    assert(rsp <= ARRAY_SIZE(response_name));
+    assert(rsp < ARRAY_SIZE(response_name));
     return response_name[rsp];
 }
 
-- 
1.8.3.1

WARNING: multiple messages have this Message-ID (diff)
From: Lidong Chen <lidong.chen@oracle.com>
To: qemu-devel@nongnu.org
Cc: lidong.chen@oracle.com, darren.kenny@oracle.com, f4bug@amsat.org
Subject: [Qemu-devel] [PATCH] sd: Fix out-of-bounds assertions
Date: Mon,  8 Apr 2019 15:04:36 -0400	[thread overview]
Message-ID: <1554750276-19230-1-git-send-email-lidong.chen@oracle.com> (raw)
Message-ID: <20190408190436.qWP4FFUFM68mBZ65Efk4sBeyQGYXIkpFtaPKyqY7E68@z> (raw)

Due to an off-by-one error, the assert statements allow an
out-of-bounds array access.

Signed-off-by: Lidong Chen <lidong.chen@oracle.com>
---
 hw/sd/sd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/hw/sd/sd.c b/hw/sd/sd.c
index aaab15f..818f86c 100644
--- a/hw/sd/sd.c
+++ b/hw/sd/sd.c
@@ -144,7 +144,7 @@ static const char *sd_state_name(enum SDCardStates state)
     if (state == sd_inactive_state) {
         return "inactive";
     }
-    assert(state <= ARRAY_SIZE(state_name));
+    assert(state < ARRAY_SIZE(state_name));
     return state_name[state];
 }
 
@@ -165,7 +165,7 @@ static const char *sd_response_name(sd_rsp_type_t rsp)
     if (rsp == sd_r1b) {
         rsp = sd_r1;
     }
-    assert(rsp <= ARRAY_SIZE(response_name));
+    assert(rsp < ARRAY_SIZE(response_name));
     return response_name[rsp];
 }
 
-- 
1.8.3.1



             reply	other threads:[~2019-04-08 19:05 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-08 19:04 Lidong Chen [this message]
2019-04-08 19:04 ` [Qemu-devel] [PATCH] sd: Fix out-of-bounds assertions Lidong Chen
2019-04-08 19:53 ` Marc-André Lureau
2019-04-08 19:53   ` Marc-André Lureau
2019-04-08 21:27 ` Philippe Mathieu-Daudé
2019-04-08 21:27   ` Philippe Mathieu-Daudé
2019-04-08 21:57   ` Lidong Chen
2019-04-08 21:57     ` Lidong Chen
2019-04-09  0:18 ` Li Qiang
2019-04-09  0:18   ` Li Qiang
2019-04-09  5:51 ` Markus Armbruster
2019-04-09  5:51   ` Markus Armbruster
2019-04-09  8:59   ` Aleksandar Markovic
2019-04-09  8:59     ` Aleksandar Markovic
2019-04-09  9:37     ` Philippe Mathieu-Daudé
2019-04-09  9:37       ` Philippe Mathieu-Daudé
2019-04-11 11:52       ` Daniel P. Berrangé
2019-04-11 11:52         ` Daniel P. Berrangé
2019-04-11 12:20         ` Markus Armbruster
2019-04-11 12:20           ` Markus Armbruster
2019-04-11 12:45           ` Daniel P. Berrangé
2019-04-11 12:45             ` Daniel P. Berrangé
2019-04-11 13:25             ` Markus Armbruster
2019-04-11 13:25               ` Markus Armbruster
2019-04-09  9:40   ` Aleksandar Markovic
2019-04-09  9:40     ` Aleksandar Markovic
2019-04-09  9:48   ` Peter Maydell
2019-04-09  9:48     ` Peter Maydell
2019-04-09 10:39   ` Liam Merwick
2019-04-09 10:39     ` Liam Merwick
2019-04-10 21:49     ` Lidong Chen
2019-04-10 21:49       ` Lidong Chen

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