From: "Alexis Lothoré (eBPF Foundation)" <alexis.lothore@bootlin.com>
To: Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
John Fastabend <john.fastabend@gmail.com>,
Andrii Nakryiko <andrii@kernel.org>,
Martin KaFai Lau <martin.lau@linux.dev>,
Eduard Zingerman <eddyz87@gmail.com>,
Kumar Kartikeya Dwivedi <memxor@gmail.com>,
Song Liu <song@kernel.org>,
Yonghong Song <yonghong.song@linux.dev>,
Jiri Olsa <jolsa@kernel.org>, Thomas Gleixner <tglx@kernel.org>,
Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
x86@kernel.org, "H. Peter Anvin" <hpa@zytor.com>,
Shuah Khan <shuah@kernel.org>, Ingo Molnar <mingo@redhat.com>,
Andrey Konovalov <andreyknvl@gmail.com>
Cc: ebpf@linuxfoundation.org,
"Bastien Curutchet" <bastien.curutchet@bootlin.com>,
"Thomas Petazzoni" <thomas.petazzoni@bootlin.com>,
bpf@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-kselftest@vger.kernel.org,
"Alexis Lothoré (eBPF Foundation)" <alexis.lothore@bootlin.com>
Subject: [PATCH bpf-next v3 07/10] bpf, x86: enable KASAN for JITed programs on x86
Date: Wed, 01 Jul 2026 12:02:55 +0200 [thread overview]
Message-ID: <20260701-kasan-v3-7-bd09bb942d86@bootlin.com> (raw)
In-Reply-To: <20260701-kasan-v3-0-bd09bb942d86@bootlin.com>
Mark x86 as supporting KASAN checks in JITed programs so that the
corresponding JIT compiler inserts checks on the translated
instructions.
Signed-off-by: Alexis Lothoré (eBPF Foundation) <alexis.lothore@bootlin.com>
---
arch/x86/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index bdad90f210e4..705a9ab85f3a 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -233,6 +233,7 @@ config X86
select HAVE_SAMPLE_FTRACE_DIRECT if X86_64
select HAVE_SAMPLE_FTRACE_DIRECT_MULTI if X86_64
select HAVE_EBPF_JIT
+ select HAVE_EBPF_JIT_KASAN if X86_64
select HAVE_EFFICIENT_UNALIGNED_ACCESS
select HAVE_EISA if X86_32
select HAVE_EXIT_THREAD
--
2.54.0
next prev parent reply other threads:[~2026-07-01 10:03 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-01 10:02 [PATCH bpf-next v3 00/10] bpf: add support for KASAN checks in JITed programs Alexis Lothoré (eBPF Foundation)
2026-07-01 10:02 ` [PATCH bpf-next v3 01/10] bpf: propagate original instruction offset when patching program Alexis Lothoré (eBPF Foundation)
2026-07-01 10:20 ` sashiko-bot
2026-07-01 10:02 ` [PATCH bpf-next v3 02/10] bpf: mark instructions accessing program stack Alexis Lothoré (eBPF Foundation)
2026-07-01 10:19 ` sashiko-bot
2026-07-01 10:02 ` [PATCH bpf-next v3 03/10] bpf: add BPF_JIT_KASAN for KASAN instrumentation of JITed programs Alexis Lothoré (eBPF Foundation)
2026-07-01 10:12 ` sashiko-bot
2026-07-07 12:07 ` Alexis Lothoré
2026-07-01 10:44 ` bot+bpf-ci
2026-07-01 13:43 ` Andrey Konovalov
2026-07-06 14:16 ` Alexis Lothoré
2026-07-06 15:02 ` Andrey Konovalov
2026-07-01 10:02 ` [PATCH bpf-next v3 04/10] bpf, x86: add helper to emit kasan checks in x86 " Alexis Lothoré (eBPF Foundation)
2026-07-01 10:16 ` sashiko-bot
2026-07-07 13:44 ` Alexis Lothoré
2026-07-01 10:44 ` bot+bpf-ci
2026-07-07 14:04 ` Alexis Lothoré
2026-07-01 10:02 ` [PATCH bpf-next v3 05/10] bpf, x86: refactor BPF_ST management in do_jit Alexis Lothoré (eBPF Foundation)
2026-07-01 10:02 ` [PATCH bpf-next v3 06/10] bpf, x86: emit KASAN checks into x86 JITed programs Alexis Lothoré (eBPF Foundation)
2026-07-01 10:18 ` sashiko-bot
2026-07-01 10:44 ` bot+bpf-ci
2026-07-01 10:02 ` Alexis Lothoré (eBPF Foundation) [this message]
2026-07-01 10:15 ` [PATCH bpf-next v3 07/10] bpf, x86: enable KASAN for JITed programs on x86 sashiko-bot
2026-07-01 10:02 ` [PATCH bpf-next v3 08/10] selftests/bpf: add helper to check whether eBPF KASAN is active Alexis Lothoré (eBPF Foundation)
2026-07-01 10:02 ` [PATCH bpf-next v3 09/10] selftests/bpf: move bpf_jit_harden helper into testing_helpers Alexis Lothoré (eBPF Foundation)
2026-07-01 10:02 ` [PATCH bpf-next v3 10/10] selftests/bpf: add tests to validate KASAN on JIT programs Alexis Lothoré (eBPF Foundation)
2026-07-01 10:34 ` sashiko-bot
2026-07-07 14:13 ` Alexis Lothoré
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