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| author |   Paul Chaignon <paul.chaignon@gmail.com> | 2025-07-01 21:48:03 +0200 |
|---|---|---|
| committer |   Alexei Starovoitov <ast@kernel.org> | 2025-07-01 15:22:46 -0700 |
| commit | bf4807c89d8f92c47404b1e4eeeefb42259d1b50 (patch) | |
| tree | 05420dd3623b9445124ae1fabf8446c47c35b9ca | |
| parent | bpf: Reject %p% format string in bprintf-like helpers (diff) | |
| download | wireguard-linux-bf4807c89d8f92c47404b1e4eeeefb42259d1b50.tar.xz wireguard-linux-bf4807c89d8f92c47404b1e4eeeefb42259d1b50.zip | |
selftests/bpf: Add negative test cases for snprintf
This patch adds a couple negative test cases with a trailing % at the
end of the format string. The %p% case was fixed by the previous commit,
whereas the %s% case was already successfully rejected before.
Acked-by: Yonghong Song <yonghong.song@linux.dev>
Signed-off-by: Paul Chaignon <paul.chaignon@gmail.com>
Link: https://lore.kernel.org/r/0669bf6eb4f9e5bb10e949d60311c06e2d942447.1751395489.git.paul.chaignon@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
| -rw-r--r-- | tools/testing/selftests/bpf/prog_tests/snprintf.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/prog_tests/snprintf.c b/tools/testing/selftests/bpf/prog_tests/snprintf.c index 4be6fdb78c6a..594441acb707 100644 --- a/tools/testing/selftests/bpf/prog_tests/snprintf.c +++ b/tools/testing/selftests/bpf/prog_tests/snprintf.c @@ -116,6 +116,8 @@ static void test_snprintf_negative(void) ASSERT_ERR(load_single_snprintf("%llc"), "invalid specifier 7"); ASSERT_ERR(load_single_snprintf("\x80"), "non ascii character"); ASSERT_ERR(load_single_snprintf("\x1"), "non printable character"); + ASSERT_ERR(load_single_snprintf("%p%"), "invalid specifier 8"); + ASSERT_ERR(load_single_snprintf("%s%"), "invalid specifier 9"); } void test_snprintf(void) |