diff options
| -rw-r--r-- | tools/testing/selftests/bpf/progs/verifier_btf_ctx_access.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/verifier_btf_ctx_access.c b/tools/testing/selftests/bpf/progs/verifier_btf_ctx_access.c index bfc3bf18fed4..28b939572cda 100644 --- a/tools/testing/selftests/bpf/progs/verifier_btf_ctx_access.c +++ b/tools/testing/selftests/bpf/progs/verifier_btf_ctx_access.c @@ -29,4 +29,40 @@ __naked void ctx_access_u32_pointer_accept(void) " ::: __clobber_all); } +SEC("fentry/bpf_fentry_test9") +__description("btf_ctx_access u32 pointer reject u32") +__failure __msg("size 4 must be 8") +__naked void ctx_access_u32_pointer_reject_32(void) +{ + asm volatile (" \ + r2 = *(u32 *)(r1 + 0); /* load 1st argument with narrow load */\ + r0 = 0; \ + exit; \ +" ::: __clobber_all); +} + +SEC("fentry/bpf_fentry_test9") +__description("btf_ctx_access u32 pointer reject u16") +__failure __msg("size 2 must be 8") +__naked void ctx_access_u32_pointer_reject_16(void) +{ + asm volatile (" \ + r2 = *(u16 *)(r1 + 0); /* load 1st argument with narrow load */\ + r0 = 0; \ + exit; \ +" ::: __clobber_all); +} + +SEC("fentry/bpf_fentry_test9") +__description("btf_ctx_access u32 pointer reject u8") +__failure __msg("size 1 must be 8") +__naked void ctx_access_u32_pointer_reject_8(void) +{ + asm volatile (" \ + r2 = *(u8 *)(r1 + 0); /* load 1st argument with narrow load */\ + r0 = 0; \ + exit; \ +" ::: __clobber_all); +} + char _license[] SEC("license") = "GPL"; |