From 0b85038cd1bd2fba41225fa2180ee3cbbde68ee9 Mon Sep 17 00:00:00 2001 From: Simon McVittie Date: Wed, 1 Sep 2021 14:21:04 +0100 Subject: [PATCH] run: Don't allow chroot() If we don't allow pivot_root() then there seems no reason why we should allow chroot(). Partially fixes GHSA-67h7-w3jq-vh4q. Signed-off-by: Simon McVittie --- common/flatpak-run.c | 1 + 1 file changed, 1 insertion(+) diff --git a/common/flatpak-run.c b/common/flatpak-run.c index d298f91804..9b3648065b 100644 --- a/common/flatpak-run.c +++ b/common/flatpak-run.c @@ -2663,6 +2663,7 @@ setup_seccomp (FlatpakBwrap *bwrap, {SCMP_SYS (umount), EPERM}, {SCMP_SYS (umount2), EPERM}, {SCMP_SYS (pivot_root), EPERM}, + {SCMP_SYS (chroot), EPERM}, #if defined(__s390__) || defined(__s390x__) || defined(__CRIS__) /* Architectures with CONFIG_CLONE_BACKWARDS2: the child stack * and flags arguments are reversed so the flags come second */