From: Alejandro Colomar <alx@kernel.org>
Date: Tue, 21 Jan 2025 03:13:51 +0000 (+0800)
Subject: man/man2/clone.2: Use munmap(2) to free 'stack'
X-Git-Tag: man-pages-6.11~12
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=55685aa7d74e1fe25b773886716b386a62717786;p=thirdparty%2Fman-pages.git

man/man2/clone.2: Use munmap(2) to free 'stack'

Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Reported-by: Chen Linxuan <chenlinxuan@uniontech.com>
Message-ID: <647EBDB1A8DE7507+20250121031351.548052-1-chenlinxuan@uniontech.com>
Signed-off-by: Alejandro Colomar <alx@kernel.org>
---

diff --git a/man/man2/clone.2 b/man/man2/clone.2
index 3ffe8e7b8..a8ccc9620 100644
--- a/man/man2/clone.2
+++ b/man/man2/clone.2
@@ -1912,6 +1912,8 @@ main(int argc, char *argv[])
     pid = clone(childFunc, stackTop, CLONE_NEWUTS | SIGCHLD, argv[1]);
     if (pid == \-1)
         err(EXIT_FAILURE, "clone");
+    if (munmap(stack, STACK_SIZE))
+        err(EXIT_FAILURE, "munmap");
     printf("clone() returned %jd\[rs]n", (intmax_t) pid);
 \&
     /* Parent falls through to here */