Messages in this thread | | | Date | Thu, 12 May 2022 12:41:16 +0000 | From | Simon Ser <> | Subject | Re: procfs: open("/proc/self/fd/...") allows bypassing O_RDONLY |
| |
On Thursday, May 12th, 2022 at 12:37, Simon Ser <contact@emersion.fr> wrote:
> what would be a good way to share a FD to another > process without allowing it to write to the underlying file?
(I'm reminded that memfd + seals exist for this purpose. Still, I'd be interested to know whether that O_RDONLY/O_RDWR behavior is intended, because it's pretty surprising. The motivation for using O_RDONLY over memfd seals is that it isn't Linux-specific.)
| |