Messages in this thread | | | Date | Thu, 22 Jan 2015 10:16:35 +0300 | From | Cyrill Gorcunov <> | Subject | Re: [RFC][PATCH] procfs: Always expose /proc/<pid>/map_files/ and make it readable |
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On Wed, Jan 21, 2015 at 06:45:54PM -0800, Calvin Owens wrote: > Currently, /proc/<pid>/map_files/ is restricted to CAP_SYS_ADMIN, and > is only exposed if CONFIG_CHECKPOINT_RESTORE is set. This interface > is very useful for enumerating the files mapped into a process when > the more verbose information in /proc/<pid>/maps is not needed. > > This patch moves the folder out from behind CHECKPOINT_RESTORE, and > removes the CAP_SYS_ADMIN restrictions. To avoid exposing files to > processes for whom they may not be visible, a follow_link() stub is > added to the inode_operations struct attached to the symlinks that > prevent them from being followed without CAP_SYS_ADMIN. > > Signed-off-by: Calvin Owens <calvinowens@fb.com>
Looks good to me, thanks.
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