From: Rong Tao <[email protected]>
Fix bpf_strnstr() wrong 'len' parameter, bpf_strnstr("open", "open", 4)
should return 0 instead of -ENOENT. And fix a more general case when s2
is a suffix of the first len characters of s1.
Rong Tao (2):
bpf/helpers: bpf_strnstr: Exact match length
selftests/bpf: Add tests for bpf_strnstr
kernel/bpf/helpers.c | 9 ++++++++-
.../testing/selftests/bpf/progs/string_kfuncs_success.c | 8 ++++++--
2 files changed, 14 insertions(+), 3 deletions(-)
---
v5: Add more commit message and change the patch 0001's comment;
v4: Add comment and more selftests;
https://lore.kernel.org/all/[email protected]/
v3: Fix selftests/bpf error in v2, sorry about that;
https://lore.kernel.org/lkml/[email protected]/
v2: Follow Andrii Nakryiko's advise, fix the 'wrong fix';
https://lore.kernel.org/lkml/[email protected]/
v1:
https://lore.kernel.org/lkml/[email protected]/
--
2.51.0
