diff --git a/backport-getpcaps-catch-PID-parsing-errors.patch b/backport-getpcaps-catch-PID-parsing-errors.patch
new file mode 100644
index 0000000000000000000000000000000000000000..570aa02153009d2f888b1467f1cf3231766983fa
--- /dev/null
+++ b/backport-getpcaps-catch-PID-parsing-errors.patch
@@ -0,0 +1,52 @@
+From fc804acc078ef03e2c5b3a233f118a537f260ccd Mon Sep 17 00:00:00 2001
+From: Jakub Wilk <jwilk@jwilk.net>
+Date: Thu, 1 Sep 2022 22:23:19 +0200
+Subject: [PATCH] getpcaps: catch PID parsing errors.
+
+Signed-off-by: Jakub Wilk <jwilk@jwilk.net>
+Signed-off-by: Andrew G. Morgan <morgan@kernel.org>
+---
+ progs/getpcaps.c | 19 ++++++++++++++++++-
+ 1 file changed, 18 insertions(+), 1 deletion(-)
+
+diff --git a/progs/getpcaps.c b/progs/getpcaps.c
+index 8fce0a3..1e914b2 100644
+--- a/progs/getpcaps.c
++++ b/progs/getpcaps.c
+@@ -39,7 +39,9 @@ int main(int argc, char **argv)
+     }
+ 
+     for ( ++argv; --argc > 0; ++argv ) {
++	long lpid;
+ 	int pid;
++	char *endarg;
+ 	cap_t cap_d;
+ 
+ 	if (!strcmp(argv[0], "--help") || !strcmp(argv[0], "--usage") ||
+@@ -62,7 +64,22 @@ int main(int argc, char **argv)
+ 	    continue;
+ 	}
+ 
+-	pid = atoi(argv[0]);
++	errno = 0;
++	lpid = strtol(argv[0], &endarg, 10);
++	if (*endarg != '\0') {
++	    errno = EINVAL;
++	}
++	if (errno == 0) {
++	    if (lpid < 0 || pid != (pid_t) pid)
++		errno = EOVERFLOW;
++	}
++	if (errno != 0) {
++	    fprintf(stderr, "Cannot parse pid %s (%s)\n",
++		    argv[0], strerror(errno));
++	    retval = 1;
++	    continue;
++	}
++	pid = lpid;
+ 
+ 	cap_d = cap_get_pid(pid);
+ 	if (cap_d == NULL) {
+-- 
+2.27.0
+
diff --git a/libcap.spec b/libcap.spec
index 8fb8c7a22b372bd2c37233ce54f54e62233100ca..2cffcb9981cdc275d6757801fbb750ed67d391fc 100644
--- a/libcap.spec
+++ b/libcap.spec
@@ -1,6 +1,6 @@
 Name:     libcap
 Version:  2.61
-Release:  3
+Release:  4
 Summary:  A library for getting and setting POSIX.1e draft 15 capabilities        
 License:  GPLv2
 URL:      https://sites.google.com/site/fullycapable
@@ -10,6 +10,7 @@ Patch0:   libcap-buildflags.patch
 Patch1:   Fix-syntax-error-in-DEBUG-protected-setcap.c-code.patch
 Patch2:   backport-psx-free-allocated-memory-at-exit.patch
 Patch3:   backport-Avoid-a-deadlock-in-forked-psx-thread-exit.patch
+Patch4:   backport-getpcaps-catch-PID-parsing-errors.patch
 
 BuildRequires: libattr-devel pam-devel perl-interpreter gcc
 
@@ -73,6 +74,9 @@ chmod +x %{buildroot}/%{_libdir}/*.so.*
 %{_mandir}/man8/*.gz
 
 %changelog
+* Tue Nov 1 2022 yixiangzhike <yixiangzhike007@163.com> - 2.61-4
+- backport upstream patch
+
 * Wed Oct 12 2022 yixiangzhike <yixiangzhike007@163.com> - 2.61-3
 - backport upstream patches