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| author |   Alexei Starovoitov <ast@kernel.org> | 2023-08-22 12:52:48 -0700 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2023-08-22 12:52:48 -0700 |
| commit | 87680ac7979177a34ca39b5a35a2ed94209cd20f (patch) | |
| tree | 646d352f0565c43db72aeba106b44ac474d604b2 /tools | |
| parent | selftests/bpf: Add a failure test for bpf_kptr_xchg() with local kptr (diff) | |
| parent | selftests/bpf: Add test for bpf_obj_drop with bad reg->off (diff) | |
| download | linux-rng-87680ac7979177a34ca39b5a35a2ed94209cd20f.tar.xz linux-rng-87680ac7979177a34ca39b5a35a2ed94209cd20f.zip | |
Merge branch 'fix-for-check_func_arg_reg_off'
Kumar Kartikeya Dwivedi says:
====================
Fix for check_func_arg_reg_off
Remove a leftover hunk in check_func_arg_reg_off that incorrectly
bypasses reg->off == 0 requirement for release kfuncs and helpers.
====================
Link: https://lore.kernel.org/r/20230822175140.1317749-1-memxor@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/testing/selftests/bpf/progs/local_kptr_stash_fail.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/local_kptr_stash_fail.c b/tools/testing/selftests/bpf/progs/local_kptr_stash_fail.c index 5484d1e9801d..fcf7a7567da2 100644 --- a/tools/testing/selftests/bpf/progs/local_kptr_stash_fail.c +++ b/tools/testing/selftests/bpf/progs/local_kptr_stash_fail.c @@ -62,4 +62,24 @@ long stash_rb_nodes(void *ctx) return 0; } +SEC("tc") +__failure __msg("R1 must have zero offset when passed to release func") +long drop_rb_node_off(void *ctx) +{ + struct map_value *mapval; + struct node_data *res; + int idx = 0; + + mapval = bpf_map_lookup_elem(&some_nodes, &idx); + if (!mapval) + return 1; + + res = bpf_obj_new(typeof(*res)); + if (!res) + return 1; + /* Try releasing with graph node offset */ + bpf_obj_drop(&res->node); + return 0; +} + char _license[] SEC("license") = "GPL"; |