From f798bf23af8e5a0eae38931912e2b67e1d45aca4 Mon Sep 17 00:00:00 2001 From: Tobias Heider Date: Sat, 12 Aug 2023 21:59:21 +0200 Subject: [PATCH] dhcpcd: Fix off-by-one overflow when read() writes full BUFSIZ (#236) --- src/dhcpcd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/dhcpcd.c b/src/dhcpcd.c index e06733d3..688a3a6d 100644 --- a/src/dhcpcd.c +++ b/src/dhcpcd.c @@ -1822,7 +1822,7 @@ dhcpcd_stderr_cb(void *arg, unsigned short events) if (!(events & ELE_READ)) return; - len = read(ctx->stderr_fd, log, sizeof(log)); + len = read(ctx->stderr_fd, log, sizeof(log) - 1); if (len == -1) { if (errno != ECONNRESET) logerr(__func__); -- 2.47.2