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bpf/vmtest-bpf-next-PR |
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bpf/vmtest-bpf-next-VM_Test-0 |
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bpf/vmtest-bpf-next-VM_Test-24 |
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bpf/vmtest-bpf-next-VM_Test-33 |
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bpf/vmtest-bpf-next-VM_Test-34 |
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bpf/vmtest-bpf-next-VM_Test-41 |
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bpf/vmtest-bpf-next-VM_Test-42 |
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bpf/vmtest-bpf-next-VM_Test-43 |
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Logs for x86_64-llvm-18 / test (test_progs_no_alu32, false, 360) / test_progs_no_alu32 on x86_64 with llvm-18
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@@ -607,6 +607,40 @@ static void test_uprobe_race(void)
for (i = 0; i < nr; i++)
pthread_join(threads[i], NULL);
}
+
+#ifndef __NR_uprobe
+#define __NR_uprobe 336
+#endif
+
+static void test_uprobe_sigill(void)
+{
+ int status, err, pid;
+
+ pid = fork();
+ if (!ASSERT_GE(pid, 0, "fork"))
+ return;
+ /* child */
+ if (pid == 0) {
+ asm volatile (
+ "pushq %rax\n"
+ "pushq %rcx\n"
+ "pushq %r11\n"
+ "movq $" __stringify(__NR_uprobe) ", %rax\n"
+ "syscall\n"
+ "popq %r11\n"
+ "popq %rcx\n"
+ "retq\n"
+ );
+ exit(0);
+ }
+
+ err = waitpid(pid, &status, 0);
+ ASSERT_EQ(err, pid, "waitpid");
+
+ /* verify the child got killed with SIGILL */
+ ASSERT_EQ(WIFSIGNALED(status), 1, "WIFSIGNALED");
+ ASSERT_EQ(WTERMSIG(status), SIGILL, "WTERMSIG");
+}
#else
static void test_uretprobe_regs_equal(void)
{
@@ -647,6 +681,11 @@ static void test_uprobe_race(void)
{
test__skip();
}
+
+static void test_uprobe_sigill(void)
+{
+ test__skip();
+}
#endif
void test_uprobe_syscall(void)
@@ -667,4 +706,6 @@ void test_uprobe_syscall(void)
test_uprobe_usdt();
if (test__start_subtest("uprobe_race"))
test_uprobe_race();
+ if (test__start_subtest("uprobe_sigill"))
+ test_uprobe_sigill();
}
Make sure that calling uprobe syscall from outside uprobe trampoline results in sigill signal. Signed-off-by: Jiri Olsa <jolsa@kernel.org> --- .../selftests/bpf/prog_tests/uprobe_syscall.c | 41 +++++++++++++++++++ 1 file changed, 41 insertions(+)