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Define a simple program using MOD, DIV, ADD instructions,
make sure that the program is rejected if invalid offset
field is used for instruction.
These are test cases for
commit 55c0ced59fe1 ("bpf: Reject negative offsets for ALU ops")
Link: https://lore.kernel.org/all/tencent_70D024BAE70A0A309A4781694C7B764B0608@qq.com/
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Add a test case for BPF_NEG operation on CONST_PTR_TO_MAP. Tests if
BPF_NEG operation on map_ptr is rejected in unprivileged mode and is a
scalar value and do not trigger Oops in privileged mode.
Signed-off-by: KaFai Wan <kafai.wan@linux.dev>
Signed-off-by: Brahmajit Das <listout@listout.xyz>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20251001191739.2323644-3-listout@listout.xyz
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Add a test case for PTR_TO_FLOW_KEYS alu. Testing if alu with variable
offset on flow_keys is rejected. For the fixed offset success case, we
already have C code coverage to verify (e.g. via bpf_flow.c).
Signed-off-by: Hao Sun <sunhao.th@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/bpf/20240115082028.9992-2-sunhao.th@gmail.com
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Test verifier/value_illegal_alu automatically converted to use inline assembly.
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/r/20230421174234.2391278-24-eddyz87@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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