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-rw-r--r--kernel/audit.c22
1 files changed, 14 insertions, 8 deletions
diff --git a/kernel/audit.c b/kernel/audit.c
index 684b51d612a3..52ee8eee0e07 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -43,6 +43,7 @@
43 43
44#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 44#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
45 45
46#include <linux/file.h>
46#include <linux/init.h> 47#include <linux/init.h>
47#include <linux/types.h> 48#include <linux/types.h>
48#include <linux/atomic.h> 49#include <linux/atomic.h>
@@ -1851,15 +1852,20 @@ EXPORT_SYMBOL(audit_log_task_context);
1851void audit_log_d_path_exe(struct audit_buffer *ab, 1852void audit_log_d_path_exe(struct audit_buffer *ab,
1852 struct mm_struct *mm) 1853 struct mm_struct *mm)
1853{ 1854{
1854 if (!mm) { 1855 struct file *exe_file;
1855 audit_log_format(ab, " exe=(null)"); 1856
1856 return; 1857 if (!mm)
1857 } 1858 goto out_null;
1858 1859
1859 down_read(&mm->mmap_sem); 1860 exe_file = get_mm_exe_file(mm);
1860 if (mm->exe_file) 1861 if (!exe_file)
1861 audit_log_d_path(ab, " exe=", &mm->exe_file->f_path); 1862 goto out_null;
1862 up_read(&mm->mmap_sem); 1863
1864 audit_log_d_path(ab, " exe=", &exe_file->f_path);
1865 fput(exe_file);
1866 return;
1867out_null:
1868 audit_log_format(ab, " exe=(null)");
1863} 1869}
1864 1870
1865void audit_log_task_info(struct audit_buffer *ab, struct task_struct *tsk) 1871void audit_log_task_info(struct audit_buffer *ab, struct task_struct *tsk)