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abd30e947f
[ Upstream commitd798ce3f4c] Ensure that trusted PTR_TO_BTF_ID accesses perform PROBE_MEM handling in raw_tp program. Without the previous fix, this selftest crashes the kernel due to a NULL-pointer dereference. Also ensure that dead code elimination does not kick in for checks on the pointer. Reviewed-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://lore.kernel.org/r/20241104171959.2938862-4-memxor@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> Stable-dep-of:5da7e15fb5("net: Add rx_skb of kfree_skb to raw_tp_null_args[].") Signed-off-by: Sasha Levin <sashal@kernel.org>
26 lines
577 B
C
26 lines
577 B
C
// SPDX-License-Identifier: GPL-2.0
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/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
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#include <test_progs.h>
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#include "raw_tp_null.skel.h"
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void test_raw_tp_null(void)
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{
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struct raw_tp_null *skel;
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skel = raw_tp_null__open_and_load();
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if (!ASSERT_OK_PTR(skel, "raw_tp_null__open_and_load"))
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return;
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skel->bss->tid = sys_gettid();
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if (!ASSERT_OK(raw_tp_null__attach(skel), "raw_tp_null__attach"))
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goto end;
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ASSERT_OK(trigger_module_test_read(2), "trigger testmod read");
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ASSERT_EQ(skel->bss->i, 3, "invocations");
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end:
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raw_tp_null__destroy(skel);
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}
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