New: File permissions not working correctly
http://bugzilla.kernel.org/show_bug.cgi?id=14203
Summary: File permissions not working correctly
Product: File System
Version: 2.5
Kernel Version: 2.6.31-10-386
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: high
Priority: P1
Component: ext4
AssignedTo: [email protected]
ReportedBy: [email protected]
Regression: No
I have two ext4 partitions, one for the entire system(P1) and the other for all my stuff(P2). The problem occurs in the P2 partition. If I set the permission of a file to read-only(444), I'm still able to rename or delete that file, no matters who's the owner of the file(that's happen even when the file owner is the root). Another curious thing is that I can rename the file but I can not replace that file with a file with the same name(in that case the error message that I don't have permission to do that appears.
The permissions in the P1 partition works perfect. Here is the fstab file. If more info is needed I'm glad to give it([email protected])
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cat fstab
# /etc/fstab: static file system information.
#
# Use 'vol_id --uuid' to print the universally unique identifier for a # device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5). # # <file system> <mount point> <type> <options> <dump> <pass> proc /proc proc defaults 0 0 # / was on /dev/sda1 during installation UUID=22ac88ac-ca10-4e94-8ae4-f92bd36e52be / ext4 relatime,errors=remount-ro 0 1 # /MASTER was on /dev/sda6 during installation UUID=03e372ab-0d64-44da-824e-ee5c87e68d39 /MASTER ext4 relatime 0 2 # swap was on /dev/sda5 during installation UUID=b3e5fce9-4543-43d3-965f-71f2c847d63b none swap sw 0 0 /dev/scd0 /media/cdrom0 udf,iso9660 user,noauto,exec,utf8 0 0
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uname -a
Linux kendragonXXI 2.6.31-10-386 #34-Ubuntu SMP Wed Sep 16 02:18:28 UTC 2009 i686 GNU/Linux
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