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-rw-r--r--security/selinux/hooks.c65
1 files changed, 22 insertions, 43 deletions
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 1126c10a5e8..6a3683e2842 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -1090,7 +1090,7 @@ static inline u16 socket_type_to_security_class(int family, int type, int protoc
return SECCLASS_NETLINK_ROUTE_SOCKET;
case NETLINK_FIREWALL:
return SECCLASS_NETLINK_FIREWALL_SOCKET;
- case NETLINK_INET_DIAG:
+ case NETLINK_SOCK_DIAG:
return SECCLASS_NETLINK_TCPDIAG_SOCKET;
case NETLINK_NFLOG:
return SECCLASS_NETLINK_NFLOG_SOCKET;
@@ -1415,8 +1415,7 @@ static int current_has_perm(const struct task_struct *tsk,
#endif
/* Check whether a task is allowed to use a capability. */
-static int task_has_capability(struct task_struct *tsk,
- const struct cred *cred,
+static int cred_has_capability(const struct cred *cred,
int cap, int audit)
{
struct common_audit_data ad;
@@ -1427,7 +1426,7 @@ static int task_has_capability(struct task_struct *tsk,
int rc;
COMMON_AUDIT_DATA_INIT(&ad, CAP);
- ad.tsk = tsk;
+ ad.tsk = current;
ad.u.cap = cap;
switch (CAP_TO_INDEX(cap)) {
@@ -1740,7 +1739,7 @@ static inline u32 file_mask_to_av(int mode, int mask)
{
u32 av = 0;
- if ((mode & S_IFMT) != S_IFDIR) {
+ if (!S_ISDIR(mode)) {
if (mask & MAY_EXEC)
av |= FILE__EXECUTE;
if (mask & MAY_READ)
@@ -1811,7 +1810,7 @@ static int selinux_ptrace_access_check(struct task_struct *child,
if (rc)
return rc;
- if (mode == PTRACE_MODE_READ) {
+ if (mode & PTRACE_MODE_READ) {
u32 sid = current_sid();
u32 csid = task_sid(child);
return avc_has_perm(sid, csid, SECCLASS_FILE, FILE__READ, NULL);
@@ -1868,16 +1867,16 @@ static int selinux_capset(struct cred *new, const struct cred *old,
* the CAP_SETUID and CAP_SETGID capabilities using the capable hook.
*/
-static int selinux_capable(struct task_struct *tsk, const struct cred *cred,
- struct user_namespace *ns, int cap, int audit)
+static int selinux_capable(const struct cred *cred, struct user_namespace *ns,
+ int cap, int audit)
{
int rc;
- rc = cap_capable(tsk, cred, ns, cap, audit);
+ rc = cap_capable(cred, ns, cap, audit);
if (rc)
return rc;
- return task_has_capability(tsk, cred, cap, audit);
+ return cred_has_capability(cred, cap, audit);
}
static int selinux_quotactl(int cmds, int type, int id, struct super_block *sb)
@@ -1954,8 +1953,7 @@ static int selinux_vm_enough_memory(struct mm_struct *mm, long pages)
{
int rc, cap_sys_admin = 0;
- rc = selinux_capable(current, current_cred(),
- &init_user_ns, CAP_SYS_ADMIN,
+ rc = selinux_capable(current_cred(), &init_user_ns, CAP_SYS_ADMIN,
SECURITY_CAP_NOAUDIT);
if (rc == 0)
cap_sys_admin = 1;
@@ -2507,7 +2505,7 @@ static int selinux_mount(char *dev_name,
const struct cred *cred = current_cred();
if (flags & MS_REMOUNT)
- return superblock_has_perm(cred, path->mnt->mnt_sb,
+ return superblock_has_perm(cred, path->dentry->d_sb,
FILESYSTEM__REMOUNT, NULL);
else
return path_has_perm(cred, path, FILE__MOUNTON);
@@ -2598,7 +2596,7 @@ static int selinux_inode_init_security(struct inode *inode, struct inode *dir,
return 0;
}
-static int selinux_inode_create(struct inode *dir, struct dentry *dentry, int mask)
+static int selinux_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode)
{
return may_create(dir, dentry, SECCLASS_FILE);
}
@@ -2618,7 +2616,7 @@ static int selinux_inode_symlink(struct inode *dir, struct dentry *dentry, const
return may_create(dir, dentry, SECCLASS_LNK_FILE);
}
-static int selinux_inode_mkdir(struct inode *dir, struct dentry *dentry, int mask)
+static int selinux_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mask)
{
return may_create(dir, dentry, SECCLASS_DIR);
}
@@ -2628,7 +2626,7 @@ static int selinux_inode_rmdir(struct inode *dir, struct dentry *dentry)
return may_link(dir, dentry, MAY_RMDIR);
}
-static int selinux_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev)
+static int selinux_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev)
{
return may_create(dir, dentry, inode_mode_to_security_class(mode));
}
@@ -2859,8 +2857,7 @@ static int selinux_inode_getsecurity(const struct inode *inode, const char *name
* and lack of permission just means that we fall back to the
* in-core context value, not a denial.
*/
- error = selinux_capable(current, current_cred(),
- &init_user_ns, CAP_MAC_ADMIN,
+ error = selinux_capable(current_cred(), &init_user_ns, CAP_MAC_ADMIN,
SECURITY_CAP_NOAUDIT);
if (!error)
error = security_sid_to_context_force(isec->sid, &context,
@@ -2993,8 +2990,8 @@ static int selinux_file_ioctl(struct file *file, unsigned int cmd,
case KDSKBENT:
case KDSKBSENT:
- error = task_has_capability(current, cred, CAP_SYS_TTY_CONFIG,
- SECURITY_CAP_AUDIT);
+ error = cred_has_capability(cred, CAP_SYS_TTY_CONFIG,
+ SECURITY_CAP_AUDIT);
break;
/* default case assumes that the command will go
@@ -3561,19 +3558,20 @@ static int selinux_parse_skb_ipv6(struct sk_buff *skb,
u8 nexthdr;
int ret = -EINVAL, offset;
struct ipv6hdr _ipv6h, *ip6;
+ __be16 frag_off;
offset = skb_network_offset(skb);
ip6 = skb_header_pointer(skb, offset, sizeof(_ipv6h), &_ipv6h);
if (ip6 == NULL)
goto out;
- ipv6_addr_copy(&ad->u.net.v6info.saddr, &ip6->saddr);
- ipv6_addr_copy(&ad->u.net.v6info.daddr, &ip6->daddr);
+ ad->u.net.v6info.saddr = ip6->saddr;
+ ad->u.net.v6info.daddr = ip6->daddr;
ret = 0;
nexthdr = ip6->nexthdr;
offset += sizeof(_ipv6h);
- offset = ipv6_skip_exthdr(skb, offset, &nexthdr);
+ offset = ipv6_skip_exthdr(skb, offset, &nexthdr, &frag_off);
if (offset < 0)
goto out;
@@ -3871,7 +3869,7 @@ static int selinux_socket_bind(struct socket *sock, struct sockaddr *address, in
if (family == PF_INET)
ad.u.net.v4info.saddr = addr4->sin_addr.s_addr;
else
- ipv6_addr_copy(&ad.u.net.v6info.saddr, &addr6->sin6_addr);
+ ad.u.net.v6info.saddr = addr6->sin6_addr;
err = avc_has_perm(sksec->sid, sid,
sksec->sclass, node_perm, &ad);
@@ -4717,24 +4715,6 @@ static int selinux_netlink_send(struct sock *sk, struct sk_buff *skb)
return selinux_nlmsg_perm(sk, skb);
}
-static int selinux_netlink_recv(struct sk_buff *skb, int capability)
-{
- int err;
- struct common_audit_data ad;
- u32 sid;
-
- err = cap_netlink_recv(skb, capability);
- if (err)
- return err;
-
- COMMON_AUDIT_DATA_INIT(&ad, CAP);
- ad.u.cap = capability;
-
- security_task_getsecid(current, &sid);
- return avc_has_perm(sid, sid, SECCLASS_CAPABILITY,
- CAP_TO_MASK(capability), &ad);
-}
-
static int ipc_alloc_security(struct task_struct *task,
struct kern_ipc_perm *perm,
u16 sclass)
@@ -5463,7 +5443,6 @@ static struct security_operations selinux_ops = {
.vm_enough_memory = selinux_vm_enough_memory,
.netlink_send = selinux_netlink_send,
- .netlink_recv = selinux_netlink_recv,
.bprm_set_creds = selinux_bprm_set_creds,
.bprm_committing_creds = selinux_bprm_committing_creds,
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-28 05:24:53 +0000