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linux/arch/mn10300
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Eric W. Biederman dff5406432 mn10300/misalignment: Use SIGSEGV SEGV_MAPERR to report a failed user copy 
commit 6ac1dc736b upstream.

Setting si_code to 0 is the same a setting si_code to SI_USER which is definitely
not correct.  With si_code set to SI_USER si_pid and si_uid will be copied to
userspace instead of si_addr.  Which is very wrong.

So fix this by using a sensible si_code (SEGV_MAPERR) for this failure.

Fixes: b920de1b77 ("mn10300: add the MN10300/AM33 architecture to the kernel")
Cc: David Howells <dhowells@redhat.com>
Cc: Masakazu Urade <urade.masakazu@jp.panasonic.com>
Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-16 20:23:11 +01:00
..
boot License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
configs mn10300: defconfig: cleanup from old Kconfig options 2017-09-08 18:26:51 -07:00
include License cleanup: add SPDX license identifier to uapi header files with a license 2017-11-02 11:20:11 +01:00
kernel License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
lib get rid of unused __strncpy_from_user() instances 2017-05-15 23:40:28 -04:00
mm mn10300/misalignment: Use SIGSEGV SEGV_MAPERR to report a failed user copy 2018-02-16 20:23:11 +01:00
oprofile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
proc-mn2ws0050 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
proc-mn103e010 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
unit-asb2303 net: smc91x: isolate u16 writes alignment workaround 2016-10-18 14:14:21 -04:00
unit-asb2305 mn10300/PCI: Use generic pci_mmap_resource_range() 2017-04-20 08:47:47 -05:00
unit-asb2364 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Kconfig.debug License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
Makefile mn10300: Remove redundant debugging info flag 2014-01-28 10:57:06 +01:00