search for: zap_vma_pt

...igned long addr, void *data); diff -uNpr linux-2.6.32-642.6.1.el6/mm/memory.c linux-2.6.32-642.6.2.el6/mm/memory.c --- linux-2.6.32-642.6.1.el6/mm/memory.c 2016-08-25 08:06:57.000000000 -0700 +++ linux-2.6.32-642.6.2.el6/mm/memory.c 2016-10-24 06:19:16.000000000 -0700 @@ -1177,6 +1177,24 @@ int zap_vma_ptes(struct vm_area_struct * } EXPORT_SYMBOL_GPL(zap_vma_ptes); +static inline bool can_follow_write_pte(pte_t pte, struct page *page, + unsigned int flags) +{ + if (pte_write(pte)) + return true; + + /* + * Make sure that we are really following CoWed page. We do not really + * have to car...

On Tue, 25 Oct 2016 10:06:12 +0200 Christian Anthon <anthon at rth.dk> wrote: > What is the best approach on centos 6 to mitigate the problem is > officially patched? As far as I can tell Centos 6 is vulnerable to > attacks using ptrace. I can confirm that c6 is vulnerable, we're running a patched kernel (local build) using a rhel6 adaptation of the upstream fix. Ask

...idate+0x90/0x90 [nouveau] [ 99.042336] nouveau_svmm_invalidate_range_start+0xe4/0x110 [nouveau] [ 99.048878] ? nouveau_svmm_invalidate.isra.3.part.4+0x120/0x120 [nouveau] [ 99.055752] __mmu_notifier_invalidate_range_start+0x25c/0x320 [ 99.061594] unmap_vmas+0x10c/0x200 [ 99.065111] ? zap_vma_ptes+0x60/0x60 [ 99.068794] ? __do_munmap+0x6e6/0x750 [ 99.072567] unmap_region+0x1a4/0x240 [ 99.076250] ? init_admin_reserve+0x70/0x70 [ 99.080442] ? lock_acquire+0xf3/0x200 [ 99.084196] ? down_write_nested+0x150/0x150 [ 99.088495] ? __vma_rb_erase+0x399/0x5f0 [ 99.092534] __do_m...