treewide: refresh kmalloc_obj() conversionsgrafted

This is another run of the Coccinelle script for converting kmalloc()
family of allocations to kmalloc_obj() via the existing rules in
scripts/coccinelle/api/kmalloc_objs.cocci

This catches both the set of kmalloc() uses added since the first
kmalloc_obj() conversions in v7.0 and adds a large group missed in the
first pass due to Coccinelle not interacting well with the cleanup.h
scoped_...() family of macros[1]. I worked around this with spatch's
"--macro-file" argument to a file with all the scoped_...() macros mapped
to Coccinelle's YACFE_ITERATOR[2] as that was the closest viable control
flow indicator I could find.

Build tested allmodconfig on x86, arm64, arm, loongarch, mips, powerpc,
riscv, and s390 with no new warnings.

Link: https://lore.kernel.org/lkml/202609021314.8A9C0B8@keescook/ [1]
Link: https://github.com/coccinelle/coccinelle/blob/master/standard.h [2]
Signed-off-by: Kees Cook <kees+treewide@kernel.org>

1 files changed, 414 insertions, 0 deletions

diff --git a/security/selinux/include/security.h b/security/selinux/include/security.h
new file mode 100644
index 000000000..a74415e3a
--- /dev/null
+++ b/security/selinux/include/security.h
@@ -0,0 +1,414 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Security server interface.
+ *
+ * Author : Stephen Smalley, <stephen.smalley.work@gmail.com>
+ *
+ */
+
+#ifndef _SELINUX_SECURITY_H_
+#define _SELINUX_SECURITY_H_
+
+#include <linux/compiler.h>
+#include <linux/dcache.h>
+#include <linux/magic.h>
+#include <linux/types.h>
+#include <linux/rcupdate.h>
+#include <linux/refcount.h>
+#include <linux/workqueue.h>
+#include <linux/delay.h>
+#include <linux/printk.h>
+#include "flask.h"
+#include "policycap.h"
+
+#define SECSID_NULL   0x00000000 /* unspecified SID */
+#define SECSID_WILD   0xffffffff /* wildcard SID */
+#define SECCLASS_NULL 0x0000 /* no class */
+
+/* Identify specific policy version changes */
+#define POLICYDB_VERSION_BASE		     15
+#define POLICYDB_VERSION_BOOL		     16
+#define POLICYDB_VERSION_IPV6		     17
+#define POLICYDB_VERSION_NLCLASS	     18
+#define POLICYDB_VERSION_VALIDATETRANS	     19
+#define POLICYDB_VERSION_MLS		     19
+#define POLICYDB_VERSION_AVTAB		     20
+#define POLICYDB_VERSION_RANGETRANS	     21
+#define POLICYDB_VERSION_POLCAP		     22
+#define POLICYDB_VERSION_PERMISSIVE	     23
+#define POLICYDB_VERSION_BOUNDARY	     24
+#define POLICYDB_VERSION_FILENAME_TRANS	     25
+#define POLICYDB_VERSION_ROLETRANS	     26
+#define POLICYDB_VERSION_NEW_OBJECT_DEFAULTS 27
+#define POLICYDB_VERSION_DEFAULT_TYPE	     28
+#define POLICYDB_VERSION_CONSTRAINT_NAMES    29
+#define POLICYDB_VERSION_XPERMS_IOCTL	     30
+#define POLICYDB_VERSION_INFINIBAND	     31
+#define POLICYDB_VERSION_GLBLUB		     32
+#define POLICYDB_VERSION_COMP_FTRANS	     33 /* compressed filename transitions */
+#define POLICYDB_VERSION_COND_XPERMS	     34 /* extended permissions in conditional policies */
+#define POLICYDB_VERSION_NEVERAUDIT	     35 /* neveraudit types */
+
+/* Range of policy versions we understand*/
+#define POLICYDB_VERSION_MIN POLICYDB_VERSION_BASE
+#define POLICYDB_VERSION_MAX POLICYDB_VERSION_NEVERAUDIT
+
+/* Mask for just the mount related flags */
+#define SE_MNTMASK 0x0f
+/* Super block security struct flags for mount options */
+/* BE CAREFUL, these need to be the low order bits for selinux_get_mnt_opts */
+#define CONTEXT_MNT	0x01
+#define FSCONTEXT_MNT	0x02
+#define ROOTCONTEXT_MNT 0x04
+#define DEFCONTEXT_MNT	0x08
+#define SBLABEL_MNT	0x10
+/* Non-mount related flags */
+#define SE_SBINITIALIZED 0x0100
+#define SE_SBPROC	 0x0200
+#define SE_SBGENFS	 0x0400
+#define SE_SBGENFS_XATTR 0x0800
+#define SE_SBNATIVE	 0x1000
+
+#define CONTEXT_STR	"context"
+#define FSCONTEXT_STR	"fscontext"
+#define ROOTCONTEXT_STR "rootcontext"
+#define DEFCONTEXT_STR	"defcontext"
+#define SECLABEL_STR	"seclabel"
+
+struct netlbl_lsm_secattr;
+
+extern int selinux_enabled_boot;
+
+/*
+ * type_datum properties
+ * available at the kernel policy version >= POLICYDB_VERSION_BOUNDARY
+ */
+#define TYPEDATUM_PROPERTY_PRIMARY   0x0001
+#define TYPEDATUM_PROPERTY_ATTRIBUTE 0x0002
+
+/* limitation of boundary depth  */
+#define POLICYDB_BOUNDS_MAXDEPTH 4
+
+struct selinux_policy;
+
+struct selinux_state {
+#ifdef CONFIG_SECURITY_SELINUX_DEVELOP
+	bool enforcing;
+#endif
+	bool initialized;
+	bool policycap[__POLICYDB_CAP_MAX];
+
+	struct page *status_page;
+	struct mutex status_lock;
+
+	struct selinux_policy __rcu *policy;
+	struct mutex policy_mutex;
+} __randomize_layout;
+
+void selinux_avc_init(void);
+
+extern struct selinux_state selinux_state;
+
+static inline bool selinux_initialized(void)
+{
+	/* do a synchronized load to avoid race conditions */
+	return smp_load_acquire(&selinux_state.initialized);
+}
+
+static inline void selinux_mark_initialized(void)
+{
+	/* do a synchronized write to avoid race conditions */
+	smp_store_release(&selinux_state.initialized, true);
+}
+
+#ifdef CONFIG_SECURITY_SELINUX_DEVELOP
+static inline bool enforcing_enabled(void)
+{
+	return READ_ONCE(selinux_state.enforcing);
+}
+
+static inline void enforcing_set(bool value)
+{
+	WRITE_ONCE(selinux_state.enforcing, value);
+}
+#else
+static inline bool enforcing_enabled(void)
+{
+	return true;
+}
+
+static inline void enforcing_set(bool value)
+{
+}
+#endif
+
+static inline bool checkreqprot_get(void)
+{
+	/* non-zero/true checkreqprot values are no longer supported */
+	return 0;
+}
+
+static inline bool selinux_policycap_netpeer(void)
+{
+	return READ_ONCE(selinux_state.policycap[POLICYDB_CAP_NETPEER]);
+}
+
+static inline bool selinux_policycap_openperm(void)
+{
+	return READ_ONCE(selinux_state.policycap[POLICYDB_CAP_OPENPERM]);
+}
+
+static inline bool selinux_policycap_extsockclass(void)
+{
+	return READ_ONCE(selinux_state.policycap[POLICYDB_CAP_EXTSOCKCLASS]);
+}
+
+static inline bool selinux_policycap_alwaysnetwork(void)
+{
+	return READ_ONCE(selinux_state.policycap[POLICYDB_CAP_ALWAYSNETWORK]);
+}
+
+static inline bool selinux_policycap_cgroupseclabel(void)
+{
+	return READ_ONCE(selinux_state.policycap[POLICYDB_CAP_CGROUPSECLABEL]);
+}
+
+static inline bool selinux_policycap_nnp_nosuid_transition(void)
+{
+	return READ_ONCE(
+		selinux_state.policycap[POLICYDB_CAP_NNP_NOSUID_TRANSITION]);
+}
+
+static inline bool selinux_policycap_genfs_seclabel_symlinks(void)
+{
+	return READ_ONCE(
+		selinux_state.policycap[POLICYDB_CAP_GENFS_SECLABEL_SYMLINKS]);
+}
+
+static inline bool selinux_policycap_ioctl_skip_cloexec(void)
+{
+	return READ_ONCE(
+		selinux_state.policycap[POLICYDB_CAP_IOCTL_SKIP_CLOEXEC]);
+}
+
+static inline bool selinux_policycap_userspace_initial_context(void)
+{
+	return READ_ONCE(
+		selinux_state.policycap[POLICYDB_CAP_USERSPACE_INITIAL_CONTEXT]);
+}
+
+static inline bool selinux_policycap_netlink_xperm(void)
+{
+	return READ_ONCE(
+		selinux_state.policycap[POLICYDB_CAP_NETLINK_XPERM]);
+}
+
+static inline bool selinux_policycap_functionfs_seclabel(void)
+{
+	return READ_ONCE(
+		selinux_state.policycap[POLICYDB_CAP_FUNCTIONFS_SECLABEL]);
+}
+
+static inline bool selinux_policycap_memfd_class(void)
+{
+	return READ_ONCE(selinux_state.policycap[POLICYDB_CAP_MEMFD_CLASS]);
+}
+
+static inline bool selinux_policycap_bpf_token_perms(void)
+{
+	return READ_ONCE(
+		selinux_state.policycap[POLICYDB_CAP_BPF_TOKEN_PERMS]);
+}
+
+struct selinux_policy_convert_data;
+
+struct selinux_load_state {
+	struct selinux_policy *policy;
+	struct selinux_policy_convert_data *convert_data;
+};
+
+int security_mls_enabled(void);
+int security_load_policy(void *data, size_t len,
+			 struct selinux_load_state *load_state);
+void selinux_policy_commit(struct selinux_load_state *load_state);
+void selinux_policy_cancel(struct selinux_load_state *load_state);
+int security_read_policy(void **data, size_t *len);
+int security_read_state_kernel(void **data, size_t *len);
+int security_policycap_supported(unsigned int req_cap);
+
+/* Maximum supported number of permissions per class */
+#define SEL_VEC_MAX 32
+struct av_decision {
+	u32 allowed;
+	u32 auditallow;
+	u32 auditdeny;
+	u32 seqno;
+	u32 flags;
+};
+
+#define XPERMS_ALLOWED	  1
+#define XPERMS_AUDITALLOW 2
+#define XPERMS_DONTAUDIT  4
+
+#define security_xperm_set(perms, x)  ((perms)[(x) >> 5] |= 1 << ((x)&0x1f))
+#define security_xperm_test(perms, x) (1 & ((perms)[(x) >> 5] >> ((x)&0x1f)))
+struct extended_perms_data {
+	u32 p[8];
+};
+
+struct extended_perms_decision {
+	u8 used;
+	u8 driver;
+	u8 base_perm;
+	struct extended_perms_data *allowed;
+	struct extended_perms_data *auditallow;
+	struct extended_perms_data *dontaudit;
+};
+
+struct extended_perms {
+	u16 len; /* length associated decision chain */
+	u8 base_perms; /* which base permissions are covered */
+	struct extended_perms_data drivers; /* flag drivers that are used */
+};
+
+/* definitions of av_decision.flags */
+#define AVD_FLAGS_PERMISSIVE 0x0001
+#define AVD_FLAGS_NEVERAUDIT  0x0002
+
+void security_compute_av(u32 ssid, u32 tsid, u16 tclass,
+			 struct av_decision *avd,
+			 struct extended_perms *xperms);
+
+void security_compute_xperms_decision(u32 ssid, u32 tsid, u16 tclass, u8 driver,
+				      u8 base_perm,
+				      struct extended_perms_decision *xpermd);
+
+void security_compute_av_user(u32 ssid, u32 tsid, u16 tclass,
+			      struct av_decision *avd);
+
+int security_transition_sid(u32 ssid, u32 tsid, u16 tclass,
+			    const struct qstr *qstr, u32 *out_sid);
+
+int security_transition_sid_user(u32 ssid, u32 tsid, u16 tclass,
+				 const char *objname, u32 *out_sid);
+
+int security_member_sid(u32 ssid, u32 tsid, u16 tclass, u32 *out_sid);
+
+int security_change_sid(u32 ssid, u32 tsid, u16 tclass, u32 *out_sid);
+
+int security_sid_to_context(u32 sid, char **scontext, u32 *scontext_len);
+
+int security_sid_to_context_force(u32 sid, char **scontext, u32 *scontext_len);
+
+int security_sid_to_context_inval(u32 sid, char **scontext, u32 *scontext_len);
+
+int security_context_to_sid(const char *scontext, u32 scontext_len,
+			    u32 *out_sid, gfp_t gfp);
+
+int security_context_str_to_sid(const char *scontext, u32 *out_sid, gfp_t gfp);
+
+int security_context_to_sid_default(const char *scontext, u32 scontext_len,
+				    u32 *out_sid, u32 def_sid, gfp_t gfp_flags);
+
+int security_context_to_sid_force(const char *scontext, u32 scontext_len,
+				  u32 *sid);
+
+int security_port_sid(u8 protocol, u16 port, u32 *out_sid);
+
+int security_ib_pkey_sid(u64 subnet_prefix, u16 pkey_num, u32 *out_sid);
+
+int security_ib_endport_sid(const char *dev_name, u8 port_num, u32 *out_sid);
+
+int security_netif_sid(const char *name, u32 *if_sid);
+
+int security_node_sid(u16 domain, const void *addr, u32 addrlen, u32 *out_sid);
+
+int security_validate_transition(u32 oldsid, u32 newsid, u32 tasksid,
+				 u16 tclass);
+
+int security_validate_transition_user(u32 oldsid, u32 newsid, u32 tasksid,
+				      u16 tclass);
+
+int security_bounded_transition(u32 old_sid, u32 new_sid);
+
+int security_sid_mls_copy(u32 sid, u32 mls_sid, u32 *new_sid);
+
+int security_net_peersid_resolve(u32 nlbl_sid, u32 nlbl_type, u32 xfrm_sid,
+				 u32 *peer_sid);
+
+int security_get_classes(struct selinux_policy *policy, char ***classes,
+			 u32 *nclasses);
+int security_get_permissions(struct selinux_policy *policy, const char *class,
+			     char ***perms, u32 *nperms);
+int security_get_reject_unknown(void);
+int security_get_allow_unknown(void);
+
+#define SECURITY_FS_USE_XATTR	 1 /* use xattr */
+#define SECURITY_FS_USE_TRANS	 2 /* use transition SIDs, e.g. devpts/tmpfs */
+#define SECURITY_FS_USE_TASK	 3 /* use task SIDs, e.g. pipefs/sockfs */
+#define SECURITY_FS_USE_GENFS	 4 /* use the genfs support */
+#define SECURITY_FS_USE_NONE	 5 /* no labeling support */
+#define SECURITY_FS_USE_MNTPOINT 6 /* use mountpoint labeling */
+#define SECURITY_FS_USE_NATIVE	 7 /* use native label support */
+#define SECURITY_FS_USE_MAX	 7 /* Highest SECURITY_FS_USE_XXX */
+
+int security_fs_use(struct super_block *sb);
+
+int security_genfs_sid(const char *fstype, const char *path, u16 sclass,
+		       u32 *sid);
+
+int selinux_policy_genfs_sid(struct selinux_policy *policy, const char *fstype,
+			     const char *path, u16 sclass, u32 *sid);
+
+#ifdef CONFIG_NETLABEL
+int security_netlbl_secattr_to_sid(struct netlbl_lsm_secattr *secattr,
+				   u32 *sid);
+
+int security_netlbl_sid_to_secattr(u32 sid, struct netlbl_lsm_secattr *secattr);
+#else
+static inline int
+security_netlbl_secattr_to_sid(struct netlbl_lsm_secattr *secattr, u32 *sid)
+{
+	return -EIDRM;
+}
+
+static inline int
+security_netlbl_sid_to_secattr(u32 sid, struct netlbl_lsm_secattr *secattr)
+{
+	return -ENOENT;
+}
+#endif /* CONFIG_NETLABEL */
+
+const char *security_get_initial_sid_context(u32 sid);
+
+/*
+ * status notifier using mmap interface
+ */
+extern struct page *selinux_kernel_status_page(void);
+
+#define SELINUX_KERNEL_STATUS_VERSION 1
+struct selinux_kernel_status {
+	u32 version; /* version number of the structure */
+	u32 sequence; /* sequence number of seqlock logic */
+	u32 enforcing; /* current setting of enforcing mode */
+	u32 policyload; /* times of policy reloaded */
+	u32 deny_unknown; /* current setting of deny_unknown */
+	/*
+	 * The version > 0 supports above members.
+	 */
+} __packed;
+
+extern void selinux_status_update_setenforce(bool enforcing);
+extern void selinux_status_update_policyload(u32 seqno);
+extern void selinux_complete_init(void);
+extern struct path selinux_null;
+extern void selnl_notify_setenforce(int val);
+extern void selnl_notify_policyload(u32 seqno);
+extern int selinux_nlmsg_lookup(u16 sclass, u16 nlmsg_type, u32 *perm);
+
+extern void avtab_cache_init(void);
+extern void ebitmap_cache_init(void);
+extern void hashtab_cache_init(void);
+extern int security_sidtab_hash_stats(char *page);
+
+#endif /* _SELINUX_SECURITY_H_ */