diff options
Diffstat (limited to 'security')
| -rw-r--r-- | security/security.c | 12 | ||||
| -rw-r--r-- | security/selinux/hooks.c | 14 | ||||
| -rw-r--r-- | security/selinux/include/classmap.h | 2 |
3 files changed, 27 insertions, 1 deletions
diff --git a/security/security.c b/security/security.c index 143561ebc3e8..c9fae447327e 100644 --- a/security/security.c +++ b/security/security.c @@ -5999,6 +5999,18 @@ int security_uring_cmd(struct io_uring_cmd *ioucmd) { return call_int_hook(uring_cmd, ioucmd); } + +/** + * security_uring_allowed() - Check if io_uring_setup() is allowed + * + * Check whether the current task is allowed to call io_uring_setup(). + * + * Return: Returns 0 if permission is granted. + */ +int security_uring_allowed(void) +{ + return call_int_hook(uring_allowed); +} #endif /* CONFIG_IO_URING */ /** diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c index 7b867dfec88b..fb37e87df226 100644 --- a/security/selinux/hooks.c +++ b/security/selinux/hooks.c @@ -7137,6 +7137,19 @@ static int selinux_uring_cmd(struct io_uring_cmd *ioucmd) return avc_has_perm(current_sid(), isec->sid, SECCLASS_IO_URING, IO_URING__CMD, &ad); } + +/** + * selinux_uring_allowed - check if io_uring_setup() can be called + * + * Check to see if the current task is allowed to call io_uring_setup(). + */ +static int selinux_uring_allowed(void) +{ + u32 sid = current_sid(); + + return avc_has_perm(sid, sid, SECCLASS_IO_URING, IO_URING__ALLOWED, + NULL); +} #endif /* CONFIG_IO_URING */ static const struct lsm_id selinux_lsmid = { @@ -7390,6 +7403,7 @@ static struct security_hook_list selinux_hooks[] __ro_after_init = { LSM_HOOK_INIT(uring_override_creds, selinux_uring_override_creds), LSM_HOOK_INIT(uring_sqpoll, selinux_uring_sqpoll), LSM_HOOK_INIT(uring_cmd, selinux_uring_cmd), + LSM_HOOK_INIT(uring_allowed, selinux_uring_allowed), #endif /* diff --git a/security/selinux/include/classmap.h b/security/selinux/include/classmap.h index 03e82477dce9..8a8f3908aac8 100644 --- a/security/selinux/include/classmap.h +++ b/security/selinux/include/classmap.h @@ -177,7 +177,7 @@ const struct security_class_mapping secclass_map[] = { { "perf_event", { "open", "cpu", "kernel", "tracepoint", "read", "write", NULL } }, { "anon_inode", { COMMON_FILE_PERMS, NULL } }, - { "io_uring", { "override_creds", "sqpoll", "cmd", NULL } }, + { "io_uring", { "override_creds", "sqpoll", "cmd", "allowed", NULL } }, { "user_namespace", { "create", NULL } }, /* last one */ { NULL, {} } }; |