From: Andy Lutomirski <luto@kernel.org>
To: x86@kernel.org
Cc: LKML <linux-kernel@vger.kernel.org>, Andy Lutomirski <luto@kernel.org>
Subject: [PATCH v2 0/3] x86/entry: A compat syscall bugfix and some test stuff
Date: Tue, 23 Feb 2021 10:15:07 -0800 [thread overview]
Message-ID: <cover.1614104065.git.luto@kernel.org> (raw)
The compat syscall argument fixup error path is wrong. Fix it.
This also adds some sanity checks to the kernel that catch the bug
when running selftests.
Changes from v1:
- The fix is actually correct this time, I hope
Andy Lutomirski (3):
entry: Check that syscall entries and syscall exits match
x86/entry: Fix entry/exit mismatch on failed fast 32-bit syscalls
selftests/x86: Add a missing .note.GNU-stack section to thunks_32.S
arch/x86/entry/common.c | 3 ++-
include/linux/entry-common.h | 11 +++++++++++
include/linux/sched.h | 1 +
init/init_task.c | 9 +++++++++
kernel/entry/common.c | 25 ++++++++++++++++++++++++-
tools/testing/selftests/x86/thunks_32.S | 2 ++
6 files changed, 49 insertions(+), 2 deletions(-)
--
2.29.2
next reply other threads:[~2021-02-23 18:16 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-23 18:15 Andy Lutomirski [this message]
2021-02-23 18:15 ` [PATCH v2 1/3] entry: Check that syscall entries and syscall exits match Andy Lutomirski
2021-02-23 18:15 ` [PATCH v2 2/3] x86/entry: Fix entry/exit mismatch on failed fast 32-bit syscalls Andy Lutomirski
2021-03-01 15:36 ` Thomas Gleixner
2021-02-23 18:15 ` [PATCH v2 3/3] selftests/x86: Add a missing .note.GNU-stack section to thunks_32.S Andy Lutomirski
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=cover.1614104065.git.luto@kernel.org \
--to=luto@kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).