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scst_user: Avoid leaking kernel data to user space

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There is a hole in struct scst_user_opt so that structure must be
zero-initialized to avoid leaking kernel data to user space.


git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@6601 d57e44dd-8a1f-0410-8b47-8ef2f437770f
This commit is contained in:
Bart Van Assche
2015-11-06 18:04:49 +00:00
parent 5d73f89bb0
commit 5dd3194e66
1 changed files with 1 additions and 0 deletions
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scst/src/dev_handlers/scst_user.c
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@@ -3777,6 +3777,7 @@ static int dev_user_get_opt(struct file *file, void __user *arg)
if (unlikely(res != 0))
goto out;
memset(&opt, 0, sizeof(opt));
opt.parse_type = dev->parse_type;
opt.on_free_cmd_type = dev->on_free_cmd_type;
opt.memory_reuse_type = dev->memory_reuse_type;