cvs commit: src/sys/kern vfs_mount.c
Pawel Jakub Dawidek
pjd at FreeBSD.org
Mon Feb 2 11:03:12 PST 2004
pjd 2004/02/02 11:02:05 PST
FreeBSD src repository
Fix many issues related to mount/unmount:
1. Root from inside a jail was able to unmount any file system
2. Unprivileged root was able to unmount file systems mounted by
privileged root (execpt /).
3. User from inside a jail was able to mount file system when
sysctl vfs.usermount was set to 1.
4. User was able to mount file system when vfs.usermount was set to 1
(that's ok) and unmount it even if vfs.usermount was equal to 0
(that's not correct).
Possibility from point 1 was reported by: Dariusz Kowalski <darek at 76.pl>
Only a part of this fix will be MFC'ed (if approved).
Reviewed by: rwatson
Approved by: scottl (mentor)
MFC after: 3 days
Revision Changes Path
1.118 +33 -8 src/sys/kern/vfs_mount.c
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