Jan Engelhardt
bb80c34131
OBS-URL: https://build.opensuse.org/package/show/filesharing/rtorrent?expand=0&rev=9
29 lines
918 B
Diff
29 lines
918 B
Diff
From 954bfb70f24578ef33b1f77cf1a3d64fc2f2f595 Mon Sep 17 00:00:00 2001
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From: Aleksa Sarai <cyphar@cyphar.com>
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Date: Mon, 20 Jun 2022 19:09:57 +1000
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Subject: [PATCH] utils: lockfile: avoid stack overflow for lockfile buffer
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References: https://github.com/rakshasa/rtorrent/pull/1169
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Signed-off-by: Aleksa Sarai <cyphar@cyphar.com>
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---
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src/utils/lockfile.cc | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/src/utils/lockfile.cc b/src/utils/lockfile.cc
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index 7d11d8c9970f..fac5cb23e26f 100644
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--- a/src/utils/lockfile.cc
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+++ b/src/utils/lockfile.cc
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@@ -98,7 +98,8 @@ Lockfile::try_lock() {
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int pos = ::gethostname(buf, 255);
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if (pos == 0) {
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- ::snprintf(buf + std::strlen(buf), 255, ":+%i\n", ::getpid());
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+ ssize_t len = std::strlen(buf);
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+ ::snprintf(buf + len, 255 - len, ":+%i\n", ::getpid());
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int __UNUSED result = ::write(fd, buf, std::strlen(buf));
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}
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--
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2.36.1
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