diff options
| -rw-r--r-- | tools/testing/selftests/bpf/progs/verifier_unpriv.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/tools/testing/selftests/bpf/progs/verifier_unpriv.c b/tools/testing/selftests/bpf/progs/verifier_unpriv.c index 28200f068ce5..db52ba66e880 100644 --- a/tools/testing/selftests/bpf/progs/verifier_unpriv.c +++ b/tools/testing/selftests/bpf/progs/verifier_unpriv.c @@ -624,7 +624,6 @@ __retval(0) __naked void cmp_map_pointer_with_zero(void) { asm volatile (" \ - r1 = 0; \ r1 = %[map_hash_8b] ll; \ if r1 == 0 goto l0_%=; \ l0_%=: r0 = 0; \ @@ -635,6 +634,22 @@ l0_%=: r0 = 0; \ } SEC("socket") +__description("unpriv: cmp map pointer with const") +__success __failure_unpriv __msg_unpriv("R1 pointer comparison prohibited") +__retval(0) +__naked void cmp_map_pointer_with_const(void) +{ + asm volatile (" \ + r1 = %[map_hash_8b] ll; \ + if r1 == 0x0000beef goto l0_%=; \ +l0_%=: r0 = 0; \ + exit; \ +" : + : __imm_addr(map_hash_8b) + : __clobber_all); +} + +SEC("socket") __description("unpriv: write into frame pointer") __failure __msg("frame pointer is read only") __failure_unpriv |