diff options
| author | Paul Moore <paul@paul-moore.com> | 2023-08-08 04:57:22 +0200 |
|---|---|---|
| committer | Paul Moore <paul@paul-moore.com> | 2023-08-09 16:51:13 +0200 |
| commit | 817199e006e514e6c39a17ed2e9fece1bd56b898 (patch) | |
| tree | f450f46e3941356c1b9aae3d7fbe26af4e2f9cd4 /security/selinux/ss | |
| parent | selinux: use GFP_KERNEL while reading binary policy (diff) | |
| download | linux-817199e006e514e6c39a17ed2e9fece1bd56b898.tar.xz linux-817199e006e514e6c39a17ed2e9fece1bd56b898.zip | |
selinux: revert SECINITSID_INIT support
This commit reverts 5b0eea835d4e ("selinux: introduce an initial SID
for early boot processes") as it was found to cause problems on
distros with old SELinux userspace tools/libraries, specifically
Ubuntu 16.04.
Hopefully we will be able to re-add this functionality at a later
date, but let's revert this for now to help ensure a stable and
backwards compatible SELinux tree.
Link: https://lore.kernel.org/selinux/87edkseqf8.fsf@mail.lhotse
Acked-by: Ondrej Mosnacek <omosnace@redhat.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
Diffstat (limited to 'security/selinux/ss')
| -rw-r--r-- | security/selinux/ss/policydb.c | 27 |
1 files changed, 0 insertions, 27 deletions
diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c index bb850b608dc6..cd44b13b8d3f 100644 --- a/security/selinux/ss/policydb.c +++ b/security/selinux/ss/policydb.c @@ -864,8 +864,6 @@ void policydb_destroy(struct policydb *p) int policydb_load_isids(struct policydb *p, struct sidtab *s) { struct ocontext *head, *c; - bool isid_init_supported = ebitmap_get_bit(&p->policycaps, - POLICYDB_CAP_USERSPACE_INITIAL_CONTEXT); int rc; rc = sidtab_init(s); @@ -889,13 +887,6 @@ int policydb_load_isids(struct policydb *p, struct sidtab *s) if (!name) continue; - /* - * Also ignore SECINITSID_INIT if the policy doesn't declare - * support for it - */ - if (sid == SECINITSID_INIT && !isid_init_supported) - continue; - rc = sidtab_set_initial(s, sid, &c->context[0]); if (rc) { pr_err("SELinux: unable to load initial SID %s.\n", @@ -903,24 +894,6 @@ int policydb_load_isids(struct policydb *p, struct sidtab *s) sidtab_destroy(s); return rc; } - - /* - * If the policy doesn't support the "userspace_initial_context" - * capability, set SECINITSID_INIT to the same context as - * SECINITSID_KERNEL. This ensures the same behavior as before - * the reintroduction of SECINITSID_INIT, where all tasks - * started before policy load would initially get the context - * corresponding to SECINITSID_KERNEL. - */ - if (sid == SECINITSID_KERNEL && !isid_init_supported) { - rc = sidtab_set_initial(s, SECINITSID_INIT, &c->context[0]); - if (rc) { - pr_err("SELinux: unable to load initial SID %s.\n", - name); - sidtab_destroy(s); - return rc; - } - } } return 0; } |