diff options
| author | Eric W. Biederman <ebiederm@xmission.com> | 2017-08-01 05:02:38 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-02-17 13:21:20 +0100 |
| commit | df113487f844b9ba36cd87ed6c68d006b3f2e519 (patch) | |
| tree | b66717047f1511c2f3ace3776349c67a13c2a2a3 /Makefile | |
| parent | 38e3bc59e0dd2885b223dc5466304af3eba1dd4b (diff) | |
mn10300/misalignment: Use SIGSEGV SEGV_MAPERR to report a failed user copy
commit 6ac1dc736b323011a55ecd1fc5897c24c4f77cbd 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: b920de1b77b7 ("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>
Diffstat (limited to 'Makefile')
0 files changed, 0 insertions, 0 deletions