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| author | Andy Lutomirski <luto@amacapital.net> | 2014-05-14 16:23:13 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2014-05-21 16:14:04 -0700 |
| commit | 368b69a5b010cb00fc9ea04d588cff69af1a1359 (patch) | |
| tree | b66ede1750aac2feee6d6ea6163154afff13230b /mm | |
| parent | 4b660a7f5c8099d88d1a43d8ae138965112592c7 (diff) | |
| download | linux-stable-368b69a5b010cb00fc9ea04d588cff69af1a1359.tar.gz linux-stable-368b69a5b010cb00fc9ea04d588cff69af1a1359.tar.bz2 linux-stable-368b69a5b010cb00fc9ea04d588cff69af1a1359.zip | |
x86, vdso: Fix an OOPS accessing the HPET mapping w/o an HPET
The oops can be triggered in qemu using -no-hpet (but not nohpet) by
running a 32-bit program and reading a couple of pages before the vdso.
This should send SIGBUS instead of OOPSing.
The bug was introduced by:
commit 7a59ed415f5b57469e22e41fc4188d5399e0b194
Author: Stefani Seibold <stefani@seibold.net>
Date: Mon Mar 17 23:22:09 2014 +0100
x86, vdso: Add 32 bit VDSO time support for 32 bit kernel
which is new in 3.15.
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Link: http://lkml.kernel.org/r/e99025d887d6670b6c4d81e6ccfeeb83770b21e9.1400109621.git.luto@amacapital.net
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions