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Description of problem: $ journalctl --follow Apr 12 01:12:51 fedora firefox-wayland.desktop[100633]: Sandbox: attempt to open unexpected file /proc/self/maps Apr 12 01:12:52 fedora firefox-wayland.desktop[100633]: Sandbox: attempt to open unexpected file /proc/self/maps Apr 12 01:12:53 fedora firefox-wayland.desktop[100633]: Sandbox: attempt to open unexpected file /proc/self/maps Apr 12 01:12:54 fedora firefox-wayland.desktop[100633]: Sandbox: attempt to open unexpected file /proc/self/maps Apr 12 01:12:55 fedora firefox-wayland.desktop[100633]: Sandbox: attempt to open unexpected file /proc/self/maps Apr 12 01:12:56 fedora firefox-wayland.desktop[100633]: Sandbox: attempt to open unexpected file /proc/self/maps Apr 12 01:12:57 fedora firefox-wayland.desktop[100633]: Sandbox: attempt to open unexpected file /proc/self/maps Apr 12 01:12:58 fedora firefox-wayland.desktop[100633]: Sandbox: attempt to open unexpected file /proc/self/maps Apr 12 01:12:59 fedora firefox-wayland.desktop[100633]: Sandbox: attempt to open unexpected file /proc/self/maps Apr 12 01:13:00 fedora firefox-wayland.desktop[100633]: Sandbox: attempt to open unexpected file /proc/self/maps Apr 12 01:13:01 fedora firefox-wayland.desktop[100633]: Sandbox: attempt to open unexpected file /proc/self/maps I don't know what triggered this. Version-Release number of selected component (if applicable): firefox-87.0-11.fc34.x86_64
Same here, but not on wayland. Apr 16 10:24:52 doont firefox.desktop[123972]: Sandbox: attempt to open unexpected file /proc/self/maps Apr 16 10:24:52 doont firefox.desktop[123949]: Sandbox: attempt to open unexpected file /proc/self/maps Apr 16 10:24:53 doont firefox.desktop[123972]: Sandbox: attempt to open unexpected file /proc/self/maps Apr 16 10:24:53 doont firefox.desktop[123972]: Sandbox: attempt to open unexpected file /proc/self/maps Apr 16 10:24:53 doont firefox.desktop[123949]: Sandbox: attempt to open unexpected file /proc/self/maps Apr 16 10:24:54 doont firefox.desktop[123972]: Sandbox: attempt to open unexpected file /proc/self/maps Apr 16 10:24:54 doont firefox.desktop[123972]: Sandbox: attempt to open unexpected file /proc/self/maps Apr 16 10:24:54 doont firefox.desktop[123949]: Sandbox: attempt to open unexpected file /proc/self/maps Apr 16 10:24:55 doont firefox.desktop[123972]: Sandbox: attempt to open unexpected file /proc/self/maps Apr 16 10:24:55 doont firefox.desktop[123972]: Sandbox: attempt to open unexpected file /proc/self/maps Apr 16 10:24:55 doont firefox.desktop[123949]: Sandbox: attempt to open unexpected file /proc/self/maps Apr 16 10:24:56 doont firefox.desktop[123972]: Sandbox: attempt to open unexpected file /proc/self/maps Apr 16 10:24:56 doont firefox.desktop[123972]: Sandbox: attempt to open unexpected file /proc/self/maps Apr 16 10:24:56 doont firefox.desktop[123949]: Sandbox: attempt to open unexpected file /proc/self/maps firefox-87.0-7.fc34.x86_64 /proc/self/maps exists and is readable $ sestatus SELinux status: disabled
For me, this issue occurs in both fedora & flathub version over wayland and it's related with DRM content like netflix or prime video.
I did a fresh install of F34 yesterday and I'm still seeing it, again on X not wayland. I do watch both netflix and prime video on this box, but I don't think I've seen it until the machine comes out of suspend. Stopping firefox ends the journal output, but it continues immediately if restarted. firefox-88.0-5.fc34.x86_64
Same here after upgrading to Fedora 34, however it's X11 (due to NVIDIA GPU) rather than Wayland here. It appears to happen even without suspend and seems correlated to sudden Gnome Shell restarts. When these messages appear — Gnome randomly restarts, when there are none — it stops doing that. It happens when Netflix is open in Firefox for a while, but there seem to be other causes too, just can't pinpoint yet.
(In reply to Steeve McCauley from comment #3) > I did a fresh install of F34 yesterday and I'm still seeing it, again on X > not wayland. > > I do watch both netflix and prime video on this box, but I don't think I've > seen it until the machine comes out of suspend. Stopping firefox ends the > journal output, but it continues immediately if restarted. > > firefox-88.0-5.fc34.x86_64 I'm pretty much confident this is widevine DRM library spying around. I'm seeing this (only) running Spotify webplayer in Firefox. Closing the Spotify tab silences those "unexpected" file accesses. Probably the same for netflix and prime video. Widevine Version: 4.10.2209.1
So, confirmed and fixed. I'm on Widevine 4.10.1582.2 now (from November 2019 according to file date, latest version before 4.10.2209.x). And... silence. Also annoying playback drops 3...10 seconds after track start are gone. So I think, this is not a Firefox bug. I'm staying on 4.10.1582.2 as log as Spotify accepts it, moving to Deezer, if playback will break in future (auto update off, downgrading again, if necessary). I suggest to close this bug and provide some feedback here ("I found an issue and would like to file a bug report"): https://support.google.com/widevine/troubleshooter/6027072 Maybe some attention on social media might help, too.
Well, Spotify doesn't accept Widevine 4.10.1582.2 (and lower) anymore. Playback stops, when the verification xhr post is done. Good news for me, my current subscription ends in three days. Not using the service is the perfect DRM anyway. All win. Deezer sign-up already done, runs perfectly without Widevine.
Not just a Spotify thing, happens with Hulu and firefox-88.0.1-1.fc32.x86_64
FC34 all latest patches. I don't run Spotify or Netflix and I get lost of similar messages. Not just "/proc/self/maps" Sometimes the messages come from ksmserver or plasmashell ksmserver[24729]: Sandbox: attempt to open unexpected file /sys/devices/system/cpu/online Aug 08 14:48:03 mars ksmserver[24729]: Sandbox: attempt to open unexpected file /proc/stat Aug 08 14:48:03 mars ksmserver[24729]: Sandbox: attempt to open unexpected file /proc/net/unix Aug 08 14:48:03 mars ksmserver[24729]: Sandbox: attempt to open unexpected file /proc/self/maps Aug 08 14:48:03 mars ksmserver[24729]: Sandbox: attempt to open unexpected file /proc/self/maps Aug 08 14:48:03 mars ksmserver[24729]: Sandbox: attempt to open unexpected file /proc/net/unix Aug 08 14:48:03 mars ksmserver[24729]: Sandbox: attempt to open unexpected file /proc/net/unix Aug 08 14:48:03 mars ksmserver[24729]: Sandbox: attempt to open unexpected file /proc/net/unix Aug 08 14:48:03 mars ksmserver[24729]: Sandbox: attempt to open unexpected file /proc/net/unix Aug 08 14:48:03 mars ksmserver[24729]: Sandbox: attempt to open unexpected file /proc/net/unix Aug 08 14:48:03 mars ksmserver[24729]: Sandbox: attempt to open unexpected file /proc/net/unix Aug 08 14:48:03 mars ksmserver[24729]: Sandbox: attempt to open unexpected file /proc/self/maps Aug 08 14:48:03 mars ksmserver[24729]: Sandbox: attempt to open unexpected file /proc/net/unix Aug 08 14:48:03 mars ksmserver[24729]: Sandbox: attempt to open unexpected file /proc/self/maps Aug 08 14:48:03 mars ksmserver[24729]: Sandbox: attempt to open unexpected file /proc/net/unix Aug 08 14:48:03 mars ksmserver[24729]: Sandbox: attempt to open unexpected file /proc/net/unix Aug 08 14:48:03 mars ksmserver[24729]: Sandbox: attempt to open unexpected file /proc/self/maps Aug 08 14:48:04 mars ksmserver[24729]: Sandbox: attempt to open unexpected file /proc/self/maps Aug 08 14:48:04 mars ksmserver[24729]: Sandbox: attempt to open unexpected file /proc/net/unix Aug 08 14:48:04 mars ksmserver[24729]: Sandbox: attempt to open unexpected file /proc/self/maps Aug 08 14:48:04 mars ksmserver[24729]: Sandbox: attempt to open unexpected file /proc/net/unix Aug 08 14:48:04 mars ksmserver[24729]: Sandbox: attempt to open unexpected file /proc/net/unix Aug 08 14:48:04 mars ksmserver[24729]: Sandbox: attempt to open unexpected file /proc/self/maps Aug 08 14:48:04 mars ksmserver[24729]: Sandbox: attempt to open unexpected file /proc/net/unix Aug 08 14:48:04 mars ksmserver[24729]: Sandbox: attempt to open unexpected file /proc/self/maps Aug 08 14:48:04 mars ksmserver[24729]: Sandbox: attempt to open unexpected file /proc/self/maps Aug 08 14:48:04 mars ksmserver[24729]: Sandbox: attempt to open unexpected file /proc/self/maps Aug 08 14:48:04 mars ksmserver[24729]: Sandbox: attempt to open unexpected file /proc/self/maps Aug 08 14:48:04 mars ksmserver[24729]: Sandbox: attempt to open unexpected file /proc/self/maps Aug 08 14:48:04 mars ksmserver[24729]: Sandbox: attempt to open unexpected file /proc/self/maps Aug 08 14:48:04 mars ksmserver[24729]: Sandbox: attempt to open unexpected file /proc/self/maps Aug 08 14:48:04 mars ksmserver[24729]: Sandbox: attempt to open unexpected file /proc/net/unix Aug 08 14:48:04 mars ksmserver[24729]: Sandbox: attempt to open unexpected file /proc/net/unix Aug 08 14:48:04 mars ksmserver[24729]
(In reply to Brian Kaye from comment #9) > FC34 all latest patches. > > > I don't run Spotify or Netflix and I get lost of similar messages. Not just > "/proc/self/maps" > Just disable Widevine or better HTML5 DRM completely, restart firefox and check it angain. I'm pretty much confident you're just using another service, that requires Widevine. https://support.mozilla.org/en-US/kb/enable-drm
This is tracked upstream on https://bugzilla.mozilla.org/show_bug.cgi?id=1712506 , and https://phabricator.services.mozilla.com/D123562 should resolve the issue "soon".
I no longer see this problem. DRM works with SE enforcing (at least after deleting all "gmp-widevinecdm" folders and relabelling).