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-rw-r--r--security/commoncap.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/security/commoncap.c b/security/commoncap.c
index 6d4d586b9356..78b37838a2d3 100644
--- a/security/commoncap.c
+++ b/security/commoncap.c
@@ -548,9 +548,10 @@ skip:
if ((is_setid ||
!cap_issubset(new->cap_permitted, old->cap_permitted)) &&
- bprm->unsafe & ~LSM_UNSAFE_PTRACE_CAP) {
+ ((bprm->unsafe & ~LSM_UNSAFE_PTRACE) ||
+ !ptracer_capable(current, new->user_ns))) {
/* downgrade; they get no more than they had, and maybe less */
- if (!capable(CAP_SETUID) ||
+ if (!ns_capable(new->user_ns, CAP_SETUID) ||
(bprm->unsafe & LSM_UNSAFE_NO_NEW_PRIVS)) {
new->euid = new->uid;
new->egid = new->gid;