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| author | Kees Cook <keescook@chromium.org> | 2023-10-04 01:18:23 +0200 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-10-06 03:31:49 +0200 |
| commit | 0fef0907d6faaab280d052e385d0da876182a1d2 (patch) | |
| tree | aafb7f4d8ef8d193e23a5a705719bb31576c12f3 /net/sched/sch_netem.c | |
| parent | nexthop: Annotate struct nh_notifier_res_table_info with __counted_by (diff) | |
| download | linux-0fef0907d6faaab280d052e385d0da876182a1d2.tar.xz linux-0fef0907d6faaab280d052e385d0da876182a1d2.zip | |
netem: Annotate struct disttable with __counted_by
Prepare for the coming implementation by GCC and Clang of the __counted_by
attribute. Flexible array members annotated with __counted_by can have
their accesses bounds-checked at run-time via CONFIG_UBSAN_BOUNDS (for
array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family
functions).
As found with Coccinelle[1], add __counted_by for struct disttable.
Cc: Jamal Hadi Salim <jhs@mojatatu.com>
Cc: Cong Wang <xiyou.wangcong@gmail.com>
Cc: Jiri Pirko <jiri@resnulli.us>
Link: https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci [1]
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Stephen Hemminger <stephen@networkplumber.org>
Link: https://lore.kernel.org/r/20231003231823.work.684-kees@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/sched/sch_netem.c')
| -rw-r--r-- | net/sched/sch_netem.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c index 4ad39a4a3cf5..6ba2dc191ed9 100644 --- a/net/sched/sch_netem.c +++ b/net/sched/sch_netem.c @@ -67,7 +67,7 @@ struct disttable { u32 size; - s16 table[]; + s16 table[] __counted_by(size); }; struct netem_sched_data { |