** Description changed: As reported by Jann Horn on bug 1850994, unprivileged overlayfs mounting fails in disco/eoan due to SB_I_NOSUID and SB_I_USERNS_VISIBLE. overlayfs sets SB_I_NOSUID for unprivileged mounts, which causes mount_too_revealing() to bail out as it sees SB_I_USERNS_VISIBLE as being set. - - Xenial has a differing conflict of s_iflags, which does not prevent - unprivileged overlayfs mounts, but it should still be fixed.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1851677 Title: s_iflags overlap prevents unprivileged overlayfs mounts Status in linux package in Ubuntu: In Progress Status in linux source package in Disco: New Status in linux source package in Eoan: New Bug description: As reported by Jann Horn on bug 1850994, unprivileged overlayfs mounting fails in disco/eoan due to SB_I_NOSUID and SB_I_USERNS_VISIBLE. overlayfs sets SB_I_NOSUID for unprivileged mounts, which causes mount_too_revealing() to bail out as it sees SB_I_USERNS_VISIBLE as being set. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1851677/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
