From: Karel Zak Date: Tue, 27 Jul 2021 11:58:31 +0200 Subject: sys-utils/ipcutils: be careful when call calloc() for uint64 nmembs Signed-off-by: Karel Zak Bug: https://github.com/karelzak/util-linux/issues/1395 Origin: https://github.com/karelzak/util-linux/commit/1c9143d0c1f979c3daf10e1c37b5b1e916c22a1c Bug-Debian: https://bugs.debian.org/991619 Bug-Debian: https://security-tracker.debian.org/tracker/CVE-2021-37600 --- 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 5fe297f..989e299 100644 --- a/sys-utils/ipcutils.c +++ b/sys-utils/ipcutils.c @@ -215,7 +215,7 @@ 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));