29 lines
936 B
Diff
29 lines
936 B
Diff
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From 1658c0150e4a3d87d1e36b7755de0079e2e6a133 Mon Sep 17 00:00:00 2001
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From: Karel Zak <kzak@redhat.com>
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Date: Mon, 29 Apr 2024 14:55:16 +0200
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Subject: [PATCH] wall: make sure unsigned variable not underflow
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Signed-off-by: Karel Zak <kzak@redhat.com>
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Reference:https://github.com/util-linux/util-linux/commit/1658c0150e4a3d87d1e36b7755de0079e2e6a133
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Conflict:NA
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---
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term-utils/ttymsg.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/term-utils/ttymsg.c b/term-utils/ttymsg.c
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index faa0344fe..ef7e35899 100644
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--- a/term-utils/ttymsg.c
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+++ b/term-utils/ttymsg.c
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@@ -123,7 +123,7 @@ ttymsg(struct iovec *iov, size_t iovcnt, char *line, int tmout) {
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iovcnt * sizeof(struct iovec));
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iov = localiov;
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}
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- for (cnt = 0; wret >= (ssize_t) iov->iov_len; ++cnt) {
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+ for (cnt = 0; wret >= (ssize_t) iov->iov_len && iovcnt > 0; ++cnt) {
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wret -= iov->iov_len;
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++iov;
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--iovcnt;
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--
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2.33.0
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