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authorAndy Lutomirski <luto@amacapital.net>2014-05-19 15:58:31 -0700
committerH. Peter Anvin <hpa@linux.intel.com>2014-05-20 11:36:21 -0700
commit1e844fb43c96dcdba3b578918f5c485d88750891 (patch)
treedab8cc0d04378c6574c0876269ee72f22df74252 /fs/binfmt_elf.c
parent2b6f2e649f7376d9871df63a9aa0b41efd464d74 (diff)
downloadlinux-1e844fb43c96dcdba3b578918f5c485d88750891.tar.bz2
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 reading a couple of pages past the end of the vdso text. 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. This will be fixed separately in 3.15, but that patch will not apply to tip/x86/vdso. This is the equivalent fix for tip/x86/vdso and, presumably, 3.16. Cc: Stefani Seibold <stefani@seibold.net> Reported-by: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: Andy Lutomirski <luto@amacapital.net> Link: http://lkml.kernel.org/r/c8b0a9a0b8d011a8b273cbb2de88d37190ed2751.1400538962.git.luto@amacapital.net Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'fs/binfmt_elf.c')
0 files changed, 0 insertions, 0 deletions