| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Date: Thu, 26 May 2011 20:19:21 +0200 From: "wzabolot@...ktron.elka.pw.edu.pl" <W.Zabolotny@...a.pw.edu.pl> To: linux-kernel@...r.kernel.org Subject: Wrong (0777) permissions on root filesystem after booting the kernel Hi, Today I've stated, that in my laptop the root filesystem is mounted with very dangerous 0777 permissions. I've checked my other machines, and stated that in total 3 machines behave correctly (0755) and 2 mount / with permissions 0777. Trying to find the cause, I've stated that it is not associated with initialization scripts, as booting with "init=/bin/bash" also leads to situation, where in one machine permissions are set to 0777, while in the another one, they are set to 0755. The problem is not associated with the initrd, as it appears also when booting machine with kernel without initrd. I've investigated settings of the bootloader (grub), but there is no visible difference between affected and correctly working machines. What information is used by the kernel to set permissions when mounting the root filesystem? How does it depend on particular machine? -- TIA & Regards, Wojtek -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists