Messages in this thread Patch in this message | | | Date | Fri, 9 Mar 2012 01:57:31 +0400 | From | Cyrill Gorcunov <> | Subject | Re: [RFC] c/r: prctl: Add ability to set new mm_struct::exe_file v3 |
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On Thu, Mar 08, 2012 at 12:24:38PM -0800, Andy Lutomirski wrote: > > nnp is no_new_privs, which is my patch and is almost, but not quite, > very relevant to this discussion. Hence my confusion ;) > > FWIW, since I've touched this code recently, the cleanup you're > suggesting sounds good. >
Andy, Kees, I guess the patch below might be a helper we need, while I'm not sure on naming. hm?
Cyrill --- include/linux/fs.h | 6 ++++++ 1 file changed, 6 insertions(+)
Index: linux-2.6.git/include/linux/fs.h =================================================================== --- linux-2.6.git.orig/include/linux/fs.h +++ linux-2.6.git/include/linux/fs.h @@ -2669,5 +2669,11 @@ static inline void inode_has_no_xattr(st inode->i_flags |= S_NOSEC; } +static inline bool file_may_exec(struct file *f) +{ + return S_ISREG(f->f_path.dentry->d_inode->i_mode) && + !(f->f_path.mnt->mnt_flags & MNT_NOEXEC); +} + #endif /* __KERNEL__ */ #endif /* _LINUX_FS_H */
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