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(parent: 3d71b8b) | patch
selftests/bpf: fix signedness bug in redir_partial()
authorFushuai Wang <wangfushuai@baidu.com>
Thu, 12 Jun 2025 08:42:08 +0000 (16:42 +0800)
committerAlexei Starovoitov <ast@kernel.org>
Thu, 12 Jun 2025 23:52:43 +0000 (16:52 -0700)
commit6a4bd31f680a1d1cf06492fe6dc4f08da09769e6
tree8fdd79a8688f55b2f7fad42abf6c4d5f3b8c725etree
parent3d71b8b9abae68f6dfc434f779e1139370fbe891commit | diff
selftests/bpf: fix signedness bug in redir_partial()

When xsend() returns -1 (error), the check 'n < sizeof(buf)' incorrectly
treats it as success due to unsigned promotion. Explicitly check for -1
first.

Fixes: a4b7193d8efd ("selftests/bpf: Add sockmap test for redirecting partial skb data")
Signed-off-by: Fushuai Wang <wangfushuai@baidu.com>
Link: https://lore.kernel.org/r/20250612084208.27722-1-wangfushuai@baidu.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
tools/testing/selftests/bpf/prog_tests/sockmap_listen.c diff | blob | blame | history
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