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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6:
  mmap_min_addr check CAP_SYS_RAWIO only for write
Linus Torvalds 15 年之前
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共有 1 個文件被更改,包括 1 次插入1 次删除
  1. 1 1
      security/min_addr.c

+ 1 - 1
security/min_addr.c

@@ -33,7 +33,7 @@ int mmap_min_addr_handler(struct ctl_table *table, int write,
 {
 {
 	int ret;
 	int ret;
 
 
-	if (!capable(CAP_SYS_RAWIO))
+	if (write && !capable(CAP_SYS_RAWIO))
 		return -EPERM;
 		return -EPERM;
 
 
 	ret = proc_doulongvec_minmax(table, write, buffer, lenp, ppos);
 	ret = proc_doulongvec_minmax(table, write, buffer, lenp, ppos);