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authorAl Viro <viro@zeniv.linux.org.uk>2008-01-10 04:53:18 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2008-02-01 14:05:28 -0500
commitbfef93a5d1fb5654fe2025276c55e202d10b5255 (patch)
tree573d8153c5d5216b0c4007b652286eeddd3c0987 /include/linux
parent0c11b9428f619ab377c92eff2f160a834a6585dd (diff)
[PATCH] get rid of loginuid races
Keeping loginuid in audit_context is racy and results in messier code. Taken to task_struct, out of the way of ->audit_context changes. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/audit.h2
-rw-r--r--include/linux/init_task.h7
-rw-r--r--include/linux/sched.h3
3 files changed, 11 insertions, 1 deletions
diff --git a/include/linux/audit.h b/include/linux/audit.h
index f63117fab305..d7c6a12f4d1c 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -409,7 +409,7 @@ extern unsigned int audit_serial(void);
extern void auditsc_get_stamp(struct audit_context *ctx,
struct timespec *t, unsigned int *serial);
extern int audit_set_loginuid(struct task_struct *task, uid_t loginuid);
-extern uid_t audit_get_loginuid(struct task_struct *task);
+#define audit_get_loginuid(t) ((t)->loginuid)
extern void audit_log_task_context(struct audit_buffer *ab);
extern int __audit_ipc_obj(struct kern_ipc_perm *ipcp);
extern int __audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, mode_t mode);
diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index e6b3f7080679..ea3e9efd7396 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -114,6 +114,12 @@ extern struct group_info init_groups;
.pid = &init_struct_pid, \
}
+#ifdef CONFIG_AUDITSYSCALL
+#define INIT_IDS \
+ .loginuid = -1,
+#else
+#define INIT_IDS
+#endif
/*
* INIT_TASK is used to set up the first task table, touch at
* your own risk!. Base=0, limit=0x1fffff (=2MB)
@@ -173,6 +179,7 @@ extern struct group_info init_groups;
[PIDTYPE_SID] = INIT_PID_LINK(PIDTYPE_SID), \
}, \
.dirties = INIT_PROP_LOCAL_SINGLE(dirties), \
+ INIT_IDS \
INIT_TRACE_IRQFLAGS \
INIT_LOCKDEP \
}
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 6c333579d9da..5e2730389089 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1139,6 +1139,9 @@ struct task_struct {
void *security;
#endif
struct audit_context *audit_context;
+#ifdef CONFIG_AUDITSYSCALL
+ uid_t loginuid;
+#endif
seccomp_t seccomp;
/* Thread group tracking */