diff options
Diffstat (limited to 'security')
| -rw-r--r-- | security/commoncap.c | 8 | ||||
| -rw-r--r-- | security/selinux/hooks.c | 2 |
2 files changed, 8 insertions, 2 deletions
diff --git a/security/commoncap.c b/security/commoncap.c index e109e6dac858..14540bd78561 100644 --- a/security/commoncap.c +++ b/security/commoncap.c @@ -453,8 +453,14 @@ static int get_file_caps(struct linux_binprm *bprm, bool *effective, bool *has_c if (!file_caps_enabled) return 0; - if (bprm->file->f_path.mnt->mnt_flags & MNT_NOSUID) + if (!mnt_may_suid(bprm->file->f_path.mnt)) return 0; + + /* + * This check is redundant with mnt_may_suid() but is kept to make + * explicit that capability bits are limited to s_user_ns and its + * descendants. + */ if (!current_in_userns(bprm->file->f_path.mnt->mnt_sb->s_user_ns)) return 0; diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index a86d537eb79b..15541756eb07 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -2259,7 +2259,7 @@ static int check_nnp_nosuid(const struct linux_binprm *bprm, const struct task_security_struct *new_tsec) { int nnp = (bprm->unsafe & LSM_UNSAFE_NO_NEW_PRIVS); - int nosuid = (bprm->file->f_path.mnt->mnt_flags & MNT_NOSUID); + int nosuid = !mnt_may_suid(bprm->file->f_path.mnt); int rc; if (!nnp && !nosuid) |