| commit | f5871b9016c0ebce8acc58f7a230adcb9bd89577 | |
| author | Nick Piggin <npiggin@suse.de> | |
| Sat, 2 Feb 2008 02:08:53 +0000 (2 03:08 +0100) | ||
| committer | Greg Kroah-Hartman <gregkh@suse.de> | |
| Fri, 8 Feb 2008 19:46:21 +0000 (8 11:46 -0800) | ||
| tree | ced41f583da6ac27c4c083d35f44dacb781fad36 | treesnapshot (tar.gz zip) |
| parent | f4ae0ab4b8237848ad5d687342a10cd3b7037705 | commitdiff |
vm audit: add VM_DONTEXPAND to mmap for drivers that need it (CVE-2008-0007)
Drivers that register a ->fault handler, but do not range-check the
offset argument, must set VM_DONTEXPAND in the vm_flags in order to
prevent an expanding mremap from overflowing the resource.
I've audited the tree and attempted to fix these problems (usually by
adding VM_DONTEXPAND where it is not obvious).
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Drivers that register a ->fault handler, but do not range-check the
offset argument, must set VM_DONTEXPAND in the vm_flags in order to
prevent an expanding mremap from overflowing the resource.
I've audited the tree and attempted to fix these problems (usually by
adding VM_DONTEXPAND where it is not obvious).
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>