32 lines
1004 B
Diff
32 lines
1004 B
Diff
From bda4f46d1a474e5cc13712a0302adcf723e3cc5c Mon Sep 17 00:00:00 2001
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From: Phil Sutter <phil@nwl.cc>
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Date: Thu, 5 Dec 2019 13:15:01 +0100
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Subject: [PATCH] extensions: time: Avoid undefined shift
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Value 1 is signed by default and left-shifting by 31 is undefined for
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those. Fix this by marking the value as unsigned.
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Fixes: ad326ef9f734a ("Add the libxt_time iptables match")
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(cherry picked from commit 98b221002960040bf3505811c06025b6b9b6984b)
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Signed-off-by: Phil Sutter <psutter@redhat.com>
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---
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extensions/libxt_time.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/extensions/libxt_time.c b/extensions/libxt_time.c
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index 5a8cc5de13031..d001f5b7f448f 100644
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--- a/extensions/libxt_time.c
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+++ b/extensions/libxt_time.c
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@@ -330,7 +330,7 @@ static void time_print_monthdays(uint32_t mask, bool human_readable)
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printf(" ");
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for (i = 1; i <= 31; ++i)
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- if (mask & (1 << i)) {
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+ if (mask & (1u << i)) {
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if (nbdays++ > 0)
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printf(",");
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printf("%u", i);
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--
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2.24.0
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