Red Hat Bugzilla – Bug 122343
xfs kernelspace bugs in test3
Last modified: 2007-11-30 17:10:41 EST
Description of problem:
xfs kernel code in test3 contains some critical bugs:
1) module does not unload properly, due to incorrect removal of
2) xfs_bulkstat interface directly accesses userspace memory, which
will oops. this interface is mainly used for xfsdump.
we (well, christoph) has patches for both of these, once they're
finalized (probably today) I'll attach them.
3) a couple large stack users still exist in xfs, I may attach
some patches to reduce this, although for simple io stacks
xfs seems fine in this respect.
Created attachment 99962 [details]
Fix direct userspace memory derefence in XFS bulkstat ioctl
Created attachment 99963 [details]
Fix /proc entry removal order in XFS