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| author | Ben Hutchings <ben@decadent.org.uk> | 2014-09-07 21:05:05 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-11-14 08:47:54 -0800 |
| commit | 6507b92a66c9551b0555edc5a92e27027c3b990e (patch) | |
| tree | 0f47b56f7f4ffee1800d54b965019bb884779df7 /fs/sysfs | |
| parent | 6cbdf1151168e44f93866f6af751442b937f8989 (diff) | |
| download | linux-3.10-6507b92a66c9551b0555edc5a92e27027c3b990e.tar.gz linux-3.10-6507b92a66c9551b0555edc5a92e27027c3b990e.tar.bz2 linux-3.10-6507b92a66c9551b0555edc5a92e27027c3b990e.zip | |
x86: Reject x32 executables if x32 ABI not supported
commit 0e6d3112a4e95d55cf6dca88f298d5f4b8f29bd1 upstream.
It is currently possible to execve() an x32 executable on an x86_64
kernel that has only ia32 compat enabled. However all its syscalls
will fail, even _exit(). This usually causes it to segfault.
Change the ELF compat architecture check so that x32 executables are
rejected if we don't support the x32 ABI.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Link: http://lkml.kernel.org/r/1410120305.6822.9.camel@decadent.org.uk
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/sysfs')
0 files changed, 0 insertions, 0 deletions