diff options
| author | Paolo Abeni <pabeni@redhat.com> | 2023-09-21 21:49:45 +0200 |
|---|---|---|
| committer | Paolo Abeni <pabeni@redhat.com> | 2023-09-21 21:49:45 +0200 |
| commit | e9cbc89067cce78211c8629c78e931c0fe64e29d (patch) | |
| tree | 95662373d0a7b4adc589fec61e120586d476de71 /security/selinux/hooks.c | |
| parent | f30e5323a188cfc2d74b04f222cea0dbe9ffd6e6 (diff) | |
| parent | 27bbf45eae9ca98877a2d52a92a188147cd61b07 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR.
No conflicts.
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'security/selinux/hooks.c')
| -rw-r--r-- | security/selinux/hooks.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index 10350534de6d..2aa0e219d721 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -2775,14 +2775,20 @@ static int selinux_umount(struct vfsmount *mnt, int flags) static int selinux_fs_context_submount(struct fs_context *fc, struct super_block *reference) { - const struct superblock_security_struct *sbsec; + const struct superblock_security_struct *sbsec = selinux_superblock(reference); struct selinux_mnt_opts *opts; + /* + * Ensure that fc->security remains NULL when no options are set + * as expected by selinux_set_mnt_opts(). + */ + if (!(sbsec->flags & (FSCONTEXT_MNT|CONTEXT_MNT|DEFCONTEXT_MNT))) + return 0; + opts = kzalloc(sizeof(*opts), GFP_KERNEL); if (!opts) return -ENOMEM; - sbsec = selinux_superblock(reference); if (sbsec->flags & FSCONTEXT_MNT) opts->fscontext_sid = sbsec->sid; if (sbsec->flags & CONTEXT_MNT) |