| From 1c9143d0c1f979c3daf10e1c37b5b1e916c22a1c Mon Sep 17 00:00:00 2001 |
| From: Karel Zak <kzak@redhat.com> |
| Date: Tue, 27 Jul 2021 11:58:31 +0200 |
| Subject: [PATCH] sys-utils/ipcutils: be careful when call calloc() for uint64 |
| nmembs |
| |
| Fix: https://github.com/karelzak/util-linux/issues/1395 |
| Signed-off-by: Karel Zak <kzak@redhat.com> |
| |
| CVE: CVE-2021-37600 |
| |
| after version 2.37.1 |
| https://github.com/karelzak/util-linux.git 1c9143d0c1d... |
| unmodified |
| |
| Upstream-Status: Backport |
| |
| Signed-off-by: Joe Slater <joe.slater@windriver.com> |
| --- |
| sys-utils/ipcutils.c | 2 +- |
| 1 file changed, 1 insertion(+), 1 deletion(-) |
| |
| diff --git a/sys-utils/ipcutils.c b/sys-utils/ipcutils.c |
| index e784c4d..18868cf 100644 |
| --- a/sys-utils/ipcutils.c |
| +++ b/sys-utils/ipcutils.c |
| @@ -218,7 +218,7 @@ static void get_sem_elements(struct sem_data *p) |
| { |
| size_t i; |
| |
| - if (!p || !p->sem_nsems || p->sem_perm.id < 0) |
| + if (!p || !p->sem_nsems || p->sem_nsems > SIZE_MAX || p->sem_perm.id < 0) |
| return; |
| |
| p->elements = xcalloc(p->sem_nsems, sizeof(struct sem_elem)); |
| -- |
| 2.7.4 |
| |