* [PATCH bpf-next v3 0/2] Fix bpf_strnstr len error
@ 2025-08-28 11:06 Rong Tao
0 siblings, 0 replies; only message in thread
From: Rong Tao @ 2025-08-28 11:06 UTC (permalink / raw)
To: andrii.nakryiko, ast, daniel, vmalik
Cc: Rong Tao, Andrii Nakryiko, Martin KaFai Lau, Eduard Zingerman,
Song Liu, Yonghong Song, John Fastabend, KP Singh,
Stanislav Fomichev, Hao Luo, Jiri Olsa, Mykola Lysenko,
Shuah Khan, Rong Tao,
open list:BPF [GENERAL] (Safe Dynamic Programs and Tools),
open list, open list:KERNEL SELFTEST FRAMEWORK
Fix bpf_strnstr() wrong 'len' parameter, bpf_strnstr("open", "open", 4)
should return 0 instead of -ENOENT.
Rong Tao (2):
bpf/helpers: bpf_strnstr: Exact match length
selftests/bpf: Add tests for bpf_strnstr
kernel/bpf/helpers.c | 4 +++-
tools/testing/selftests/bpf/progs/string_kfuncs_success.c | 4 +++-
2 files changed, 6 insertions(+), 2 deletions(-)
---
v3: Fix selftests/bpf error in v2, sorry about that;
v2: Follow Andrii Nakryiko's advise, fix the 'wrong fix';
https://lore.kernel.org/lkml/tencent_DF4DA83EEBFB9246E5E3357BB40911CCA005@qq.com/
v1: https://lore.kernel.org/lkml/tencent_65E5988AD52BEC280D22964189505CD6ED06@qq.com/
--
2.51.0
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