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Merge branch 'stable-4.11' of git://git.infradead.org/users/pcmoore/audit
Pull audit updates from Paul Moore: "The audit changes for v4.11 are relatively small compared to what we did for v4.10, both in terms of size and impact. - two patches from Steve tweak the formatting for some of the audit records to make them more consistent with other audit records. - three patches from Richard record the name of a module on module load, fix the logging of sockaddr information when using socketcall() on 32-bit systems, and add the ability to reset audit's lost record counter. - my lone patch just fixes an annoying style nit that I was reminded about by one of Richard's patches. All these patches pass our test suite" * 'stable-4.11' of git://git.infradead.org/users/pcmoore/audit: audit: remove unnecessary curly braces from switch/case statements audit: log module name on init_module audit: log 32-bit socketcalls audit: add feature audit_lost reset audit: Make AUDIT_ANOM_ABEND event normalized audit: Make AUDIT_KERNEL event conform to the specification
This commit is contained in:
commit
b8989bccd6
@ -360,6 +360,7 @@ extern int __audit_log_bprm_fcaps(struct linux_binprm *bprm,
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const struct cred *old);
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extern void __audit_log_capset(const struct cred *new, const struct cred *old);
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extern void __audit_mmap_fd(int fd, int flags);
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extern void __audit_log_kern_module(char *name);
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static inline void audit_ipc_obj(struct kern_ipc_perm *ipcp)
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{
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@ -387,6 +388,20 @@ static inline int audit_socketcall(int nargs, unsigned long *args)
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return __audit_socketcall(nargs, args);
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return 0;
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}
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static inline int audit_socketcall_compat(int nargs, u32 *args)
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{
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unsigned long a[AUDITSC_ARGS];
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int i;
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if (audit_dummy_context())
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return 0;
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for (i = 0; i < nargs; i++)
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a[i] = (unsigned long)args[i];
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return __audit_socketcall(nargs, a);
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}
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static inline int audit_sockaddr(int len, void *addr)
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{
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if (unlikely(!audit_dummy_context()))
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@ -436,6 +451,12 @@ static inline void audit_mmap_fd(int fd, int flags)
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__audit_mmap_fd(fd, flags);
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}
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static inline void audit_log_kern_module(char *name)
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{
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if (!audit_dummy_context())
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__audit_log_kern_module(name);
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}
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extern int audit_n_rules;
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extern int audit_signals;
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#else /* CONFIG_AUDITSYSCALL */
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@ -513,6 +534,12 @@ static inline int audit_socketcall(int nargs, unsigned long *args)
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{
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return 0;
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}
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static inline int audit_socketcall_compat(int nargs, u32 *args)
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{
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return 0;
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}
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static inline void audit_fd_pair(int fd1, int fd2)
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{ }
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static inline int audit_sockaddr(int len, void *addr)
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@ -541,6 +568,11 @@ static inline void audit_log_capset(const struct cred *new,
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{ }
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static inline void audit_mmap_fd(int fd, int flags)
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{ }
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static inline void audit_log_kern_module(char *name)
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{
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}
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static inline void audit_ptrace(struct task_struct *t)
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{ }
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#define audit_n_rules 0
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@ -111,6 +111,7 @@
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#define AUDIT_PROCTITLE 1327 /* Proctitle emit event */
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#define AUDIT_FEATURE_CHANGE 1328 /* audit log listing feature changes */
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#define AUDIT_REPLACE 1329 /* Replace auditd if this packet unanswerd */
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#define AUDIT_KERN_MODULE 1330 /* Kernel Module events */
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#define AUDIT_AVC 1400 /* SE Linux avc denial or grant */
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#define AUDIT_SELINUX_ERR 1401 /* Internal SE Linux Errors */
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@ -326,17 +327,21 @@ enum {
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#define AUDIT_STATUS_RATE_LIMIT 0x0008
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#define AUDIT_STATUS_BACKLOG_LIMIT 0x0010
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#define AUDIT_STATUS_BACKLOG_WAIT_TIME 0x0020
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#define AUDIT_STATUS_LOST 0x0040
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#define AUDIT_FEATURE_BITMAP_BACKLOG_LIMIT 0x00000001
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#define AUDIT_FEATURE_BITMAP_BACKLOG_WAIT_TIME 0x00000002
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#define AUDIT_FEATURE_BITMAP_EXECUTABLE_PATH 0x00000004
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#define AUDIT_FEATURE_BITMAP_EXCLUDE_EXTEND 0x00000008
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#define AUDIT_FEATURE_BITMAP_SESSIONID_FILTER 0x00000010
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#define AUDIT_FEATURE_BITMAP_LOST_RESET 0x00000020
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#define AUDIT_FEATURE_BITMAP_ALL (AUDIT_FEATURE_BITMAP_BACKLOG_LIMIT | \
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AUDIT_FEATURE_BITMAP_BACKLOG_WAIT_TIME | \
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AUDIT_FEATURE_BITMAP_EXECUTABLE_PATH | \
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AUDIT_FEATURE_BITMAP_EXCLUDE_EXTEND | \
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AUDIT_FEATURE_BITMAP_SESSIONID_FILTER)
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AUDIT_FEATURE_BITMAP_SESSIONID_FILTER | \
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AUDIT_FEATURE_BITMAP_LOST_RESET)
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/* deprecated: AUDIT_VERSION_* */
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#define AUDIT_VERSION_LATEST AUDIT_FEATURE_BITMAP_ALL
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@ -1058,6 +1058,12 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
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if (err < 0)
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return err;
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}
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if (s.mask == AUDIT_STATUS_LOST) {
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u32 lost = atomic_xchg(&audit_lost, 0);
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audit_log_config_change("lost", 0, lost, 1);
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return lost;
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}
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break;
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}
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case AUDIT_GET_FEATURE:
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@ -1349,7 +1355,9 @@ static int __init audit_init(void)
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panic("audit: failed to start the kauditd thread (%d)\n", err);
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}
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audit_log(NULL, GFP_KERNEL, AUDIT_KERNEL, "initialized");
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audit_log(NULL, GFP_KERNEL, AUDIT_KERNEL,
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"state=initialized audit_enabled=%u res=1",
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audit_enabled);
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return 0;
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}
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@ -199,6 +199,9 @@ struct audit_context {
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struct {
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int argc;
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} execve;
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struct {
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char *name;
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} module;
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};
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int fds[2];
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struct audit_proctitle proctitle;
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@ -1221,7 +1221,7 @@ static void show_special(struct audit_context *context, int *call_panic)
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context->ipc.perm_mode);
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}
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break; }
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case AUDIT_MQ_OPEN: {
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case AUDIT_MQ_OPEN:
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audit_log_format(ab,
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"oflag=0x%x mode=%#ho mq_flags=0x%lx mq_maxmsg=%ld "
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"mq_msgsize=%ld mq_curmsgs=%ld",
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@ -1230,8 +1230,8 @@ static void show_special(struct audit_context *context, int *call_panic)
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context->mq_open.attr.mq_maxmsg,
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context->mq_open.attr.mq_msgsize,
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context->mq_open.attr.mq_curmsgs);
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break; }
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case AUDIT_MQ_SENDRECV: {
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break;
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case AUDIT_MQ_SENDRECV:
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audit_log_format(ab,
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"mqdes=%d msg_len=%zd msg_prio=%u "
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"abs_timeout_sec=%ld abs_timeout_nsec=%ld",
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@ -1240,12 +1240,12 @@ static void show_special(struct audit_context *context, int *call_panic)
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context->mq_sendrecv.msg_prio,
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context->mq_sendrecv.abs_timeout.tv_sec,
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context->mq_sendrecv.abs_timeout.tv_nsec);
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break; }
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case AUDIT_MQ_NOTIFY: {
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break;
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case AUDIT_MQ_NOTIFY:
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audit_log_format(ab, "mqdes=%d sigev_signo=%d",
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context->mq_notify.mqdes,
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context->mq_notify.sigev_signo);
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break; }
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break;
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case AUDIT_MQ_GETSETATTR: {
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struct mq_attr *attr = &context->mq_getsetattr.mqstat;
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audit_log_format(ab,
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@ -1255,19 +1255,24 @@ static void show_special(struct audit_context *context, int *call_panic)
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attr->mq_flags, attr->mq_maxmsg,
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attr->mq_msgsize, attr->mq_curmsgs);
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break; }
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case AUDIT_CAPSET: {
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case AUDIT_CAPSET:
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audit_log_format(ab, "pid=%d", context->capset.pid);
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audit_log_cap(ab, "cap_pi", &context->capset.cap.inheritable);
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audit_log_cap(ab, "cap_pp", &context->capset.cap.permitted);
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audit_log_cap(ab, "cap_pe", &context->capset.cap.effective);
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break; }
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case AUDIT_MMAP: {
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break;
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case AUDIT_MMAP:
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audit_log_format(ab, "fd=%d flags=0x%x", context->mmap.fd,
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context->mmap.flags);
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break; }
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case AUDIT_EXECVE: {
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break;
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case AUDIT_EXECVE:
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audit_log_execve_info(context, &ab);
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break; }
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break;
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case AUDIT_KERN_MODULE:
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audit_log_format(ab, "name=");
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audit_log_untrustedstring(ab, context->module.name);
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kfree(context->module.name);
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break;
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}
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audit_log_end(ab);
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}
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@ -2368,6 +2373,15 @@ void __audit_mmap_fd(int fd, int flags)
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context->type = AUDIT_MMAP;
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}
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void __audit_log_kern_module(char *name)
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{
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struct audit_context *context = current->audit_context;
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context->module.name = kmalloc(strlen(name) + 1, GFP_KERNEL);
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strcpy(context->module.name, name);
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context->type = AUDIT_KERN_MODULE;
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}
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static void audit_log_task(struct audit_buffer *ab)
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{
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kuid_t auid, uid;
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@ -2411,7 +2425,7 @@ void audit_core_dumps(long signr)
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if (unlikely(!ab))
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return;
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audit_log_task(ab);
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audit_log_format(ab, " sig=%ld", signr);
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audit_log_format(ab, " sig=%ld res=1", signr);
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audit_log_end(ab);
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}
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@ -61,6 +61,7 @@
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#include <linux/pfn.h>
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#include <linux/bsearch.h>
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#include <linux/dynamic_debug.h>
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#include <linux/audit.h>
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#include <uapi/linux/module.h>
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#include "module-internal.h"
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@ -3608,6 +3609,8 @@ static int load_module(struct load_info *info, const char __user *uargs,
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goto free_copy;
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}
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audit_log_kern_module(mod->name);
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/* Reserve our place in the list. */
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err = add_unformed_module(mod);
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if (err)
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@ -3696,7 +3699,7 @@ static int load_module(struct load_info *info, const char __user *uargs,
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mod->name, after_dashes);
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}
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/* Link in to syfs. */
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/* Link in to sysfs. */
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err = mod_sysfs_setup(mod, info, mod->kp, mod->num_kp);
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if (err < 0)
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goto coming_cleanup;
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17
net/compat.c
17
net/compat.c
@ -22,6 +22,7 @@
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#include <linux/filter.h>
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#include <linux/compat.h>
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#include <linux/security.h>
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#include <linux/audit.h>
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#include <linux/export.h>
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#include <net/scm.h>
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@ -781,14 +782,24 @@ COMPAT_SYSCALL_DEFINE5(recvmmsg, int, fd, struct compat_mmsghdr __user *, mmsg,
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COMPAT_SYSCALL_DEFINE2(socketcall, int, call, u32 __user *, args)
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{
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int ret;
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u32 a[6];
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u32 a[AUDITSC_ARGS];
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unsigned int len;
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u32 a0, a1;
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int ret;
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if (call < SYS_SOCKET || call > SYS_SENDMMSG)
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return -EINVAL;
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if (copy_from_user(a, args, nas[call]))
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len = nas[call];
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if (len > sizeof(a))
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return -EINVAL;
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if (copy_from_user(a, args, len))
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return -EFAULT;
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ret = audit_socketcall_compat(len / sizeof(a[0]), a);
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if (ret)
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return ret;
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a0 = a[0];
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a1 = a[1];
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