From: Florian Lehner <dev@der-flo.net>
To: bpf@vger.kernel.org
Cc: x86@kernel.org, davem@davemloft.net, ast@kernel.org,
daniel@iogearbox.net, andrii@kernel.org, peterz@infradead.org,
keescook@chromium.org, tglx@linutronix.de, hsinweih@uci.edu,
rostedt@goodmis.org, vegard.nossum@oracle.com,
gregkh@linuxfoundation.org, alan.maguire@oracle.com,
dylany@meta.com, riel@surriel.com,
Florian Lehner <dev@der-flo.net>
Subject: [v2 bpf-next 0/2] Fix copy_from_user_nofault()
Date: Mon, 10 Apr 2023 19:43:43 +0200 [thread overview]
Message-ID: <20230410174345.4376-1-dev@der-flo.net> (raw)
The original patch got submitted by Alexei Starovoitov with [0] and
fixes issues that got also reported in [1].
This resubmission adds !pagefault_disabled() to the check in
check_heap_object().
Changelog:
v1->v2: Addressed comments from Alexei Starovoitov
- move pagefault_disabled() check into first patch
- keep __copy_from_user_inatomic() in copy_from_user_nofault()
[0] https://lore.kernel.org/all/20230118051443.78988-1-alexei.starovoitov@gmail.com/
[1] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1033398
Alexei Starovoitov (2):
mm: Fix copy_from_user_nofault().
perf: Fix arch_perf_out_copy_user().
arch/x86/include/asm/perf_event.h | 2 --
arch/x86/lib/Makefile | 2 +-
arch/x86/lib/usercopy.c | 55 -------------------------------
kernel/events/internal.h | 16 +--------
mm/maccess.c | 52 ++++++++++++++++++++++++-----
mm/usercopy.c | 2 +-
6 files changed, 47 insertions(+), 82 deletions(-)
delete mode 100644 arch/x86/lib/usercopy.c
--
2.39.2
next reply other threads:[~2023-04-10 17:44 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-10 17:43 Florian Lehner [this message]
2023-04-10 17:43 ` [v2 bpf-next 1/2] mm: Fix copy_from_user_nofault() Florian Lehner
2023-04-10 17:43 ` [v2 bpf-next 2/2] perf: Fix arch_perf_out_copy_user() Florian Lehner
2023-04-13 0:43 ` Alexei Starovoitov
2023-04-13 0:50 ` [v2 bpf-next 0/2] Fix copy_from_user_nofault() patchwork-bot+netdevbpf
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=20230410174345.4376-1-dev@der-flo.net \
--to=dev@der-flo.net \
--cc=alan.maguire@oracle.com \
--cc=andrii@kernel.org \
--cc=ast@kernel.org \
--cc=bpf@vger.kernel.org \
--cc=daniel@iogearbox.net \
--cc=davem@davemloft.net \
--cc=dylany@meta.com \
--cc=gregkh@linuxfoundation.org \
--cc=hsinweih@uci.edu \
--cc=keescook@chromium.org \
--cc=peterz@infradead.org \
--cc=riel@surriel.com \
--cc=rostedt@goodmis.org \
--cc=tglx@linutronix.de \
--cc=vegard.nossum@oracle.com \
--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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.