add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/tty/tty_audit.c
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@@ -10,6 +10,7 @@
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 #include <linux/audit.h>
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 #include <linux/slab.h>
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 #include <linux/tty.h>
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+#include "tty.h"
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 struct tty_audit_buf {
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 	struct mutex mutex;	/* Protects all data below */
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@@ -61,20 +62,19 @@
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 			  unsigned char *data, size_t size)
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 {
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 	struct audit_buffer *ab;
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-	struct task_struct *tsk = current;
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-	pid_t pid = task_pid_nr(tsk);
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-	uid_t uid = from_kuid(&init_user_ns, task_uid(tsk));
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-	uid_t loginuid = from_kuid(&init_user_ns, audit_get_loginuid(tsk));
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-	unsigned int sessionid = audit_get_sessionid(tsk);
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+	pid_t pid = task_pid_nr(current);
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+	uid_t uid = from_kuid(&init_user_ns, task_uid(current));
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+	uid_t loginuid = from_kuid(&init_user_ns, audit_get_loginuid(current));
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+	unsigned int sessionid = audit_get_sessionid(current);
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-	ab = audit_log_start(NULL, GFP_KERNEL, AUDIT_TTY);
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+	ab = audit_log_start(audit_context(), GFP_KERNEL, AUDIT_TTY);
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 	if (ab) {
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-		char name[sizeof(tsk->comm)];
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+		char name[sizeof(current->comm)];
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 		audit_log_format(ab, "%s pid=%u uid=%u auid=%u ses=%u major=%d"
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 				 " minor=%d comm=", description, pid, uid,
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 				 loginuid, sessionid, MAJOR(dev), MINOR(dev));
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-		get_task_comm(name, tsk);
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+		get_task_comm(name, current);
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 		audit_log_untrustedstring(ab, name);
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 		audit_log_format(ab, " data=");
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 		audit_log_n_hex(ab, data, size);