On 10/12/15 11:42, Daniel Axtens wrote:
This hooks up UBSAN support for PowerPC.
So far it's found some interesting cases where we don't properly sanitise
input to shifts, including one in our futex handling. Nothing critical,
but interesting and worth fixing.
CC: Andrey Ryabinin <[email protected]>
---
This to be applied on top of next with Andrey's patches:
1) https://patchwork.kernel.org/patch/7761341/
2) https://patchwork.kernel.org/patch/7761351/
3) https://patchwork.kernel.org/patch/7761361/
4) https://patchwork.kernel.org/patch/7785791/
This is RFC for a couple of reasons:
- I'd like the original patches to
s/ARCH_HAS_UBSAN_SANTIZE_ALL/ARCH_HAS_UBSAN_SAN*I*TIZE_ALL/
(I'm about to send an email about that)
- I've only tested on LE pseries so far - I want to test on powernv,
and on BE.
Signed-off-by: Daniel Axtens <[email protected]>
I tested this patch as found in linux-next, along with the SANITIZE_ALL
typo fix, on a big-endian BML system, with gcc 5.2.1. It successfully
picked up one of the shift input issues that Daniel found, so therefore...
Tested-by: Andrew Donnellan <[email protected]>
--
Andrew Donnellan Software Engineer, OzLabs
[email protected] Australia Development Lab, Canberra
+61 2 6201 8874 (work) IBM Australia Limited
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