From: Jakub Wilk <jwilk@jwilk.net>
Date: Mon, 3 Jul 2023 10:18:51 +0000 (+0200)
Subject: lslocks: don't attempt to open /proc/-1/fd/
X-Git-Tag: v2.40-rc1~348^2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=89295e10e6086e1a500faadabafca0bb8d07ea6c;p=thirdparty%2Futil-linux.git

lslocks: don't attempt to open /proc/-1/fd/

Signed-off-by: Jakub Wilk <jwilk@jwilk.net>
---

diff --git a/misc-utils/lslocks.c b/misc-utils/lslocks.c
index ba837d51ad..87ddfdcdc7 100644
--- a/misc-utils/lslocks.c
+++ b/misc-utils/lslocks.c
@@ -178,6 +178,10 @@ static char *get_filename_sz(ino_t inode, pid_t lock_pid, size_t *size)
 	memset(path, 0, sizeof(path));
 	memset(sym, 0, sizeof(sym));
 
+	if (lock_pid < 0)
+		/* pid could be -1 for OFD locks */
+		return NULL;
+
 	/*
 	 * We know the pid so we don't have to
 	 * iterate the *entire* filesystem searching