From: Ahmad Fatoum <ahmad@a3f.at>
To: barebox@lists.infradead.org
Subject: [PATCH 1/2] sandbox: fix signed integer overflow
Date: Mon, 3 Feb 2020 09:27:58 +0100 [thread overview]
Message-ID: <20200203082759.7014-1-ahmad@a3f.at> (raw)
On a 32-bit host system, UBSan reports:
===============================================================
UBSAN: Undefined behaviour in ./arch/sandbox/os/common.c:115:32
signed integer overflow:
83598 * 1000000000 cannot be represented in type 'long int'
===============================================================
Fix this.
Signed-off-by: Ahmad Fatoum <ahmad@a3f.at>
---
arch/sandbox/os/common.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/sandbox/os/common.c b/arch/sandbox/os/common.c
index 3ad12b4a30cd..3f9cc70770f6 100644
--- a/arch/sandbox/os/common.c
+++ b/arch/sandbox/os/common.c
@@ -112,7 +112,7 @@ uint64_t linux_get_time(void)
clock_gettime(CLOCK_MONOTONIC, &ts);
- now = ts.tv_sec * 1000 * 1000 * 1000 + ts.tv_nsec;
+ now = ts.tv_sec * 1000ULL * 1000 * 1000 + ts.tv_nsec;
return now;
}
--
2.20.1
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next reply other threads:[~2020-02-03 8:28 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-03 8:27 Ahmad Fatoum [this message]
2020-02-03 8:27 ` [PATCH 2/2] sandbox: hostfile: fix UB-inducing shift Ahmad Fatoum
2020-02-10 8:09 ` [PATCH 1/2] sandbox: fix signed integer overflow Sascha Hauer
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