From 462fca2c666e0cd2b60d6d2593a7216a83047aaf 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 Conflict:NA Reference:https://github.com/flatpak/flatpak/commit/462fca2c666e0cd2b60d6d2593a7216a83047aaf --- common/flatpak-run.c | 1 + 1 file changed, 1 insertion(+) diff --git a/common/flatpak-run.c b/common/flatpak-run.c index 3a229b9..c2c0218 100644 --- a/common/flatpak-run.c +++ b/common/flatpak-run.c @@ -2138,6 +2138,7 @@ setup_seccomp (FlatpakBwrap *bwrap, {SCMP_SYS (umount), EPERM}, {SCMP_SYS (umount2), EPERM}, {SCMP_SYS (pivot_root), EPERM}, + {SCMP_SYS (chroot), EPERM}, {SCMP_SYS (clone), EPERM, &SCMP_A0 (SCMP_CMP_MASKED_EQ, CLONE_NEWUSER, CLONE_NEWUSER)}, /* Don't allow faking input to the controlling tty (CVE-2017-5226) */ -- 2.19.1