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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	stable@vger.kernel.org, Daniel Borkmann <daniel@iogearbox.net>,
	Andrii Nakryiko <andrii@kernel.org>
Subject: [PATCH 5.13 2/8] bpf: Add _kernel suffix to internal lockdown_bpf_read
Date: Fri, 13 Aug 2021 17:07:39 +0200	[thread overview]
Message-ID: <20210813150520.166271527@linuxfoundation.org> (raw)
In-Reply-To: <20210813150520.090373732@linuxfoundation.org>

From: Daniel Borkmann <daniel@iogearbox.net>

commit 71330842ff93ae67a066c1fa68d75672527312fa upstream.

Rename LOCKDOWN_BPF_READ into LOCKDOWN_BPF_READ_KERNEL so we have naming
more consistent with a LOCKDOWN_BPF_WRITE_USER option that we are adding.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/linux/security.h |    2 +-
 kernel/bpf/helpers.c     |    4 ++--
 kernel/trace/bpf_trace.c |    8 ++++----
 security/security.c      |    2 +-
 4 files changed, 8 insertions(+), 8 deletions(-)

--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -123,7 +123,7 @@ enum lockdown_reason {
 	LOCKDOWN_INTEGRITY_MAX,
 	LOCKDOWN_KCORE,
 	LOCKDOWN_KPROBES,
-	LOCKDOWN_BPF_READ,
+	LOCKDOWN_BPF_READ_KERNEL,
 	LOCKDOWN_PERF,
 	LOCKDOWN_TRACEFS,
 	LOCKDOWN_XMON_RW,
--- a/kernel/bpf/helpers.c
+++ b/kernel/bpf/helpers.c
@@ -1070,12 +1070,12 @@ bpf_base_func_proto(enum bpf_func_id fun
 	case BPF_FUNC_probe_read_user:
 		return &bpf_probe_read_user_proto;
 	case BPF_FUNC_probe_read_kernel:
-		return security_locked_down(LOCKDOWN_BPF_READ) < 0 ?
+		return security_locked_down(LOCKDOWN_BPF_READ_KERNEL) < 0 ?
 		       NULL : &bpf_probe_read_kernel_proto;
 	case BPF_FUNC_probe_read_user_str:
 		return &bpf_probe_read_user_str_proto;
 	case BPF_FUNC_probe_read_kernel_str:
-		return security_locked_down(LOCKDOWN_BPF_READ) < 0 ?
+		return security_locked_down(LOCKDOWN_BPF_READ_KERNEL) < 0 ?
 		       NULL : &bpf_probe_read_kernel_str_proto;
 	case BPF_FUNC_snprintf_btf:
 		return &bpf_snprintf_btf_proto;
--- a/kernel/trace/bpf_trace.c
+++ b/kernel/trace/bpf_trace.c
@@ -999,19 +999,19 @@ bpf_tracing_func_proto(enum bpf_func_id
 	case BPF_FUNC_probe_read_user:
 		return &bpf_probe_read_user_proto;
 	case BPF_FUNC_probe_read_kernel:
-		return security_locked_down(LOCKDOWN_BPF_READ) < 0 ?
+		return security_locked_down(LOCKDOWN_BPF_READ_KERNEL) < 0 ?
 		       NULL : &bpf_probe_read_kernel_proto;
 	case BPF_FUNC_probe_read_user_str:
 		return &bpf_probe_read_user_str_proto;
 	case BPF_FUNC_probe_read_kernel_str:
-		return security_locked_down(LOCKDOWN_BPF_READ) < 0 ?
+		return security_locked_down(LOCKDOWN_BPF_READ_KERNEL) < 0 ?
 		       NULL : &bpf_probe_read_kernel_str_proto;
 #ifdef CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE
 	case BPF_FUNC_probe_read:
-		return security_locked_down(LOCKDOWN_BPF_READ) < 0 ?
+		return security_locked_down(LOCKDOWN_BPF_READ_KERNEL) < 0 ?
 		       NULL : &bpf_probe_read_compat_proto;
 	case BPF_FUNC_probe_read_str:
-		return security_locked_down(LOCKDOWN_BPF_READ) < 0 ?
+		return security_locked_down(LOCKDOWN_BPF_READ_KERNEL) < 0 ?
 		       NULL : &bpf_probe_read_compat_str_proto;
 #endif
 #ifdef CONFIG_CGROUPS
--- a/security/security.c
+++ b/security/security.c
@@ -61,7 +61,7 @@ const char *const lockdown_reasons[LOCKD
 	[LOCKDOWN_INTEGRITY_MAX] = "integrity",
 	[LOCKDOWN_KCORE] = "/proc/kcore access",
 	[LOCKDOWN_KPROBES] = "use of kprobes",
-	[LOCKDOWN_BPF_READ] = "use of bpf to read kernel RAM",
+	[LOCKDOWN_BPF_READ_KERNEL] = "use of bpf to read kernel RAM",
 	[LOCKDOWN_PERF] = "unsafe use of perf",
 	[LOCKDOWN_TRACEFS] = "use of tracefs",
 	[LOCKDOWN_XMON_RW] = "xmon read and write access",



  parent reply	other threads:[~2021-08-13 15:21 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-13 15:07 [PATCH 5.13 0/8] 5.13.11-rc1 review Greg Kroah-Hartman
2021-08-13 15:07 ` [PATCH 5.13 1/8] firmware: tee_bnxt: Release TEE shm, session, and context during kexec Greg Kroah-Hartman
2021-08-13 15:07 ` Greg Kroah-Hartman [this message]
2021-08-13 15:07 ` [PATCH 5.13 3/8] bpf: Add lockdown check for probe_write_user helper Greg Kroah-Hartman
2021-08-13 15:07 ` [PATCH 5.13 4/8] ALSA: pcm: Fix mmap breakage without explicit buffer setup Greg Kroah-Hartman
2021-08-13 15:07 ` [PATCH 5.13 5/8] ALSA: hda/realtek: fix mute/micmute LEDs for HP ProBook 650 G8 Notebook PC Greg Kroah-Hartman
2021-08-13 15:07 ` [PATCH 5.13 6/8] ALSA: hda: Add quirk for ASUS Flow x13 Greg Kroah-Hartman
2021-08-13 15:07 ` [PATCH 5.13 7/8] ppp: Fix generating ppp unit id when ifname is not specified Greg Kroah-Hartman
2021-08-13 15:07 ` [PATCH 5.13 8/8] ovl: prevent private clone if bind mount is not allowed Greg Kroah-Hartman
2021-08-13 23:23 ` [PATCH 5.13 0/8] 5.13.11-rc1 review Shuah Khan
2021-08-14  4:12 ` Fox Chen
2021-08-14  5:56 ` Naresh Kamboju
2021-08-14 18:16 ` Guenter Roeck

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