diff options
| author | Thomas Gleixner <tglx@linutronix.de> | 2020-06-11 15:17:57 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-06-11 15:17:57 +0200 |
| commit | f77d26a9fc525286bcef3d4f98b52e17482cf49c (patch) | |
| tree | 6b179c9aa84787773cb601a14a64255e2912154b /tools/testing/selftests/bpf/verifier/ref_tracking.c | |
| parent | b6bea24d41519e8c31e4798f1c1a3f67e540c5d0 (diff) | |
| parent | f0178fc01fe46bab6a95415f5647d1a74efcad1b (diff) | |
Merge branch 'x86/entry' into ras/core
to fixup conflicts in arch/x86/kernel/cpu/mce/core.c so MCE specific follow
up patches can be applied without creating a horrible merge conflict
afterwards.
Diffstat (limited to 'tools/testing/selftests/bpf/verifier/ref_tracking.c')
| -rw-r--r-- | tools/testing/selftests/bpf/verifier/ref_tracking.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/verifier/ref_tracking.c b/tools/testing/selftests/bpf/verifier/ref_tracking.c index 604b46151736..056e0273bf12 100644 --- a/tools/testing/selftests/bpf/verifier/ref_tracking.c +++ b/tools/testing/selftests/bpf/verifier/ref_tracking.c @@ -821,3 +821,36 @@ .result = REJECT, .errstr = "invalid mem access", }, +{ + "reference tracking: branch tracking valid pointer null comparison", + .insns = { + BPF_SK_LOOKUP(sk_lookup_tcp), + BPF_MOV64_REG(BPF_REG_6, BPF_REG_0), + BPF_MOV64_IMM(BPF_REG_3, 1), + BPF_JMP_IMM(BPF_JNE, BPF_REG_6, 0, 1), + BPF_MOV64_IMM(BPF_REG_3, 0), + BPF_JMP_IMM(BPF_JEQ, BPF_REG_6, 0, 2), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), + BPF_EMIT_CALL(BPF_FUNC_sk_release), + BPF_EXIT_INSN(), + }, + .prog_type = BPF_PROG_TYPE_SCHED_CLS, + .result = ACCEPT, +}, +{ + "reference tracking: branch tracking valid pointer value comparison", + .insns = { + BPF_SK_LOOKUP(sk_lookup_tcp), + BPF_MOV64_REG(BPF_REG_6, BPF_REG_0), + BPF_MOV64_IMM(BPF_REG_3, 1), + BPF_JMP_IMM(BPF_JEQ, BPF_REG_6, 0, 4), + BPF_MOV64_IMM(BPF_REG_3, 0), + BPF_JMP_IMM(BPF_JEQ, BPF_REG_6, 1234, 2), + BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), + BPF_EMIT_CALL(BPF_FUNC_sk_release), + BPF_EXIT_INSN(), + }, + .prog_type = BPF_PROG_TYPE_SCHED_CLS, + .errstr = "Unreleased reference", + .result = REJECT, +}, |