Thread (1 message) 1 message, 1 author, 2021-06-03
STALE1902d REVIEWED: 5 (5M)

1 review trailer (1 from subsystem maintainers).

[PATCH AUTOSEL 5.12 37/43] bpf, selftests: Adjust few selftest result_unpriv outcomes

From: Sasha Levin <sashal@kernel.org>
Date: 2021-06-03 17:09:30
Also in: bpf, linux-kselftest, lkml, stable
Subsystem: bpf [general] (safe dynamic programs and tools), bpf [selftests] (test runners & infrastructure), kernel selftest framework, the rest · Maintainers: Alexei Starovoitov, Daniel Borkmann, Andrii Nakryiko, Eduard Zingerman, Kumar Kartikeya Dwivedi, Shuah Khan, Shuah Khan, Linus Torvalds

From: Daniel Borkmann <daniel@iogearbox.net>

[ Upstream commit 1bad6fd52be4ce12d207e2820ceb0f29ab31fc53 ]

Given we don't need to simulate the speculative domain for registers with
immediates anymore since the verifier uses direct imm-based rewrites instead
of having to mask, we can also lift a few cases that were previously rejected.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/bpf/verifier/stack_ptr.c       | 2 --
 tools/testing/selftests/bpf/verifier/value_ptr_arith.c | 8 --------
 2 files changed, 10 deletions(-)
diff --git a/tools/testing/selftests/bpf/verifier/stack_ptr.c b/tools/testing/selftests/bpf/verifier/stack_ptr.c
index 07eaa04412ae..8ab94d65f3d5 100644
--- a/tools/testing/selftests/bpf/verifier/stack_ptr.c
+++ b/tools/testing/selftests/bpf/verifier/stack_ptr.c
@@ -295,8 +295,6 @@
 	BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, 0),
 	BPF_EXIT_INSN(),
 	},
-	.result_unpriv = REJECT,
-	.errstr_unpriv = "invalid write to stack R1 off=0 size=1",
 	.result = ACCEPT,
 	.retval = 42,
 },
diff --git a/tools/testing/selftests/bpf/verifier/value_ptr_arith.c b/tools/testing/selftests/bpf/verifier/value_ptr_arith.c
index e5913fd3b903..7ae2859d495c 100644
--- a/tools/testing/selftests/bpf/verifier/value_ptr_arith.c
+++ b/tools/testing/selftests/bpf/verifier/value_ptr_arith.c
@@ -300,8 +300,6 @@
 	},
 	.fixup_map_array_48b = { 3 },
 	.result = ACCEPT,
-	.result_unpriv = REJECT,
-	.errstr_unpriv = "R0 pointer arithmetic of map value goes out of range",
 	.retval = 1,
 },
 {
@@ -371,8 +369,6 @@
 	},
 	.fixup_map_array_48b = { 3 },
 	.result = ACCEPT,
-	.result_unpriv = REJECT,
-	.errstr_unpriv = "R0 pointer arithmetic of map value goes out of range",
 	.retval = 1,
 },
 {
@@ -472,8 +468,6 @@
 	},
 	.fixup_map_array_48b = { 3 },
 	.result = ACCEPT,
-	.result_unpriv = REJECT,
-	.errstr_unpriv = "R0 pointer arithmetic of map value goes out of range",
 	.retval = 1,
 },
 {
@@ -766,8 +760,6 @@
 	},
 	.fixup_map_array_48b = { 3 },
 	.result = ACCEPT,
-	.result_unpriv = REJECT,
-	.errstr_unpriv = "R0 pointer arithmetic of map value goes out of range",
 	.retval = 1,
 },
 {
-- 
2.30.2
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