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-rw-r--r--tools/testing/selftests/bpf/progs/timer_crash.c54
1 files changed, 0 insertions, 54 deletions
diff --git a/tools/testing/selftests/bpf/progs/timer_crash.c b/tools/testing/selftests/bpf/progs/timer_crash.c
deleted file mode 100644
index f8f7944e70da..000000000000
--- a/tools/testing/selftests/bpf/progs/timer_crash.c
+++ /dev/null
@@ -1,54 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-
-#include <vmlinux.h>
-#include <bpf/bpf_tracing.h>
-#include <bpf/bpf_helpers.h>
-
-struct map_elem {
- struct bpf_timer timer;
- struct bpf_spin_lock lock;
-};
-
-struct {
- __uint(type, BPF_MAP_TYPE_ARRAY);
- __uint(max_entries, 1);
- __type(key, int);
- __type(value, struct map_elem);
-} amap SEC(".maps");
-
-struct {
- __uint(type, BPF_MAP_TYPE_HASH);
- __uint(max_entries, 1);
- __type(key, int);
- __type(value, struct map_elem);
-} hmap SEC(".maps");
-
-int pid = 0;
-int crash_map = 0; /* 0 for amap, 1 for hmap */
-
-SEC("fentry/do_nanosleep")
-int sys_enter(void *ctx)
-{
- struct map_elem *e, value = {};
- void *map = crash_map ? (void *)&hmap : (void *)&amap;
-
- if (bpf_get_current_task_btf()->tgid != pid)
- return 0;
-
- *(void **)&value = (void *)0xdeadcaf3;
-
- bpf_map_update_elem(map, &(int){0}, &value, 0);
- /* For array map, doing bpf_map_update_elem will do a
- * check_and_free_timer_in_array, which will trigger the crash if timer
- * pointer was overwritten, for hmap we need to use bpf_timer_cancel.
- */
- if (crash_map == 1) {
- e = bpf_map_lookup_elem(map, &(int){0});
- if (!e)
- return 0;
- bpf_timer_cancel(&e->timer);
- }
- return 0;
-}
-
-char _license[] SEC("license") = "GPL";