diff options
| author | Daniel Borkmann <daniel@iogearbox.net> | 2024-10-21 17:28:09 +0200 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2024-10-22 15:42:56 -0700 |
| commit | 82bbe133312b37bbef29f96e56e177ebe240f700 (patch) | |
| tree | f57105763b9914f01d85050c6cad02ca7963b844 /kernel/trace | |
| parent | baa802d2aa5c220d82499fd1c81fb735c74729b2 (diff) | |
selftests/bpf: Add test for passing in uninit mtu_len
Add a small test to pass an uninitialized mtu_len to the bpf_check_mtu()
helper to probe whether the verifier rejects it under !CAP_PERFMON.
# ./vmtest.sh -- ./test_progs -t verifier_mtu
[...]
./test_progs -t verifier_mtu
[ 1.414712] tsc: Refined TSC clocksource calibration: 3407.993 MHz
[ 1.415327] clocksource: tsc: mask: 0xffffffffffffffff max_cycles: 0x311fcd52370, max_idle_ns: 440795242006 ns
[ 1.416463] clocksource: Switched to clocksource tsc
[ 1.429842] bpf_testmod: loading out-of-tree module taints kernel.
[ 1.430283] bpf_testmod: module verification failed: signature and/or required key missing - tainting kernel
#510/1 verifier_mtu/uninit/mtu: write rejected:OK
#510 verifier_mtu:OK
Summary: 1/1 PASSED, 0 SKIPPED, 0 FAILED
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/r/20241021152809.33343-5-daniel@iogearbox.net
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'kernel/trace')
0 files changed, 0 insertions, 0 deletions