Re: [PATCH] Fix offset2lib issue for x86*, ARM*, PowerPC and MIPS
From: Ingo Molnar <mingo@kernel.org>
Date: 2015-02-24 07:39:12
Also in:
linux-arm-kernel, linux-mips, lkml
Possibly related (same subject, not in this thread)
- 2015-02-27 · Re: [PATCH] Fix offset2lib issue for x86*, ARM*, PowerPC and MIPS · Kees Cook <hidden>
- 2015-02-27 · Re: [PATCH] Fix offset2lib issue for x86*, ARM*, PowerPC and MIPS · Andrew Morton <akpm@linux-foundation.org>
* Hector Marco Gisbert [off-list ref] wrote:
+unsigned long randomize_et_dyn(unsigned long base)
+{
+ unsigned long ret;
+ if ((current->personality & ADDR_NO_RANDOMIZE) ||
+ !(current->flags & PF_RANDOMIZE))
+ return base;
+ ret = base + mmap_rnd();
+ return (ret > base) ? ret : base;
+}+unsigned long randomize_et_dyn(unsigned long base)
+{
+ unsigned long ret;
+ if ((current->personality & ADDR_NO_RANDOMIZE) ||
+ !(current->flags & PF_RANDOMIZE))
+ return base;
+ ret = base + mmap_rnd();
+ return (ret > base) ? ret : base;
+}+unsigned long randomize_et_dyn(unsigned long base)
+{
+ unsigned long ret;
+ if ((current->personality & ADDR_NO_RANDOMIZE) ||
+ !(current->flags & PF_RANDOMIZE))
+ return base;
+ ret = base + brk_rnd();
+ return (ret > base) ? ret : base;
+}+unsigned long randomize_et_dyn(unsigned long base)
+{
+ unsigned long ret;
+ if ((current->personality & ADDR_NO_RANDOMIZE) ||
+ !(current->flags & PF_RANDOMIZE))
+ return base;
+ ret = base + mmap_rnd();
+ return (ret > base) ? ret : base;
+}+unsigned long randomize_et_dyn(unsigned long base)
+{
+ unsigned long ret;
+ if ((current->personality & ADDR_NO_RANDOMIZE) ||
+ !(current->flags & PF_RANDOMIZE))
+ return base;
+ ret = base + mmap_rnd();
+ return (ret > base) ? ret : base;
+}That pointless repetition should be avoided. Thanks, Ingo