Messages in this thread | | | Date | Mon, 23 Jan 2023 13:41:04 -0500 | From | "Colin Walters" <> | Subject | Re: [PATCH v3 1/2] exec: add PR_HIDE_SELF_EXE prctl |
| |
On Fri, Jan 20, 2023, at 5:25 AM, Giuseppe Scrivano wrote: > This patch adds a new prctl called PR_HIDE_SELF_EXE which allows > processes to hide their own /proc/*/exe file. When this prctl is > used, every access to /proc/*/exe for the calling process will > fail with ENOENT.
How about a mount option for procfs like `mount -t procfs procfs /proc -o rw,nosuid,nodev,magiclink-no-xdev`
Where `magiclink-no-xdev` would cause all magic links to fail to cross a pid namespace or so?
| |