Messages in this thread | ![/](/images/icornerl.gif) | | Subject | Re: [kernel-hardening] [PATCH 00/11] S.A.R.A. a new stacked LSM | From | Matt Brown <> | Date | Thu, 13 Jul 2017 08:39:47 -0400 |
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On 7/11/17 3:31 PM, Mimi Zohar wrote: > On Tue, 2017-07-11 at 13:49 -0400, Matt Brown wrote: > >> I have merged my TPE LSM with Mimi Zohar's shebang LSM and will be >> releasing a version 3 soon. I have also added securityfs support to >> shebang that will allow users to update the interpreter list at run >> time. This allows for user's to configure TPE/Shebang without any >> xattrs. For a preview of my version 3 you can check out my dev tree >> here: >> https://github.com/nmatt0/linux-security/tree/tpe/security/tpe >> >> Note: that git tree is WIP and may not have all of the attribution and >> documentation needed. > > You'll want to detect when an interpreter is deleted or renamed. I > would define security_inode_rename, security_path_rename, > security_inode_unlink and security_path_unlink hooks. > > "rename" could be an indication that the existing interpreter is being > updated. "unlink" indicates that the interpreter has been deleted. At > either of these points, you'll want to start checking for the creation > of a new file with the expected pathname. > > Mimi >
Would it be better just to check for paths rather than inodes?
Matt
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