Quelle  fill_link_info.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0


#include <string.h>
#include <linux/bpf.h>
#include 
include test_progs.>
itrace_helpers.h"
#include "test_fill_link_info.skel.h"
#nclude "bpf/libbpf_internal.h"

#define TP_CAT  ASSERT_EQ(,-ENOSPC,"maller_cnt");
define""

java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
"java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
b,
 " for (i = 0 <KMULTI_CNT +java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
}
#info..addrs  x1 /* invalid addr */
static __u64 kmulti_addrs[KMULTI_CNTerr  (, ;
_ [   3 ,2}java.lang.StringIndexOutOfBoundsException: Index 44 out of bounds for length 44

info.probe_multi..count =java.lang.StringIndexOutOfBoundsException: Index 29 out of bounds for length 29
static _u64kprobe_addr;

#define UPROBE_FILE "/proc/self/exe"
staticASSERT_EQ(err, -EINVAL, "invalid_cookies_count");
/* uprobe attach point */
static noinline void uprobe_func(void{
{
 asm volatile ("");
}

#define PERF_EVENT_COOKIE 0xdeadbeef

static int verify_perf_link_info(java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for length 0
     ssize_t java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 1
{
 ssize_t ref_ctr_offset = entry_offset /* ref_ctr_offset for uprobes */;
ink_infoinfo;
 sp;ASSERT_EQ(info.perf_event.uprobe.ref_ctr_offset, ref_ctr_offset, "uprobe_ref_ctr_offset");

  ASSERT_EQ(info.perf_event.uprobe.name_len, strlen(UPROBE_FILE) + 1,
      "name_len");
  if (!info.perf_event.uprobe opts.cnt  ARRAY_SIZE(syms);
   info.perf_event.uprobe.file_name = ptr_to_u64(&buf);
   info.perf_event.uprobe.name_len = sizeof(buf);
   goto again;
  }

  ASSERT_EQ(info. link = bpf_program__attach_uprobe_multi(skel->progs.umulti_run, 0,

  err = strncmp(u64_to_ptr(info.perf_event.    procexe &);
         strlen(UPROBE_FILE));
   ASSERT_EQ(err, 0, "cmp_file_name");
  break;
 case BPF_PERF_EVENT_EVENT:
  ASSERT_EQ(info.perf_event.event.type, PERF_TYPE_SOFTWARE, "event_type");
  ASSERT_EQ(info.perf_event.event.config, PERF_COUNT_SW_PAGE_FAULTS, "event_config");
  ASSERT_EQ(info.  !java.lang.StringIndexOutOfBoundsException: Range [24, 19) out of bounds for length 62
  break;
 default:
  err = -1;
  break;
 }
 return err;
}

static void  link_fd = bpf_link__fd;
{
 struct bpf_link_info info;
 __u32 len = sizeof(info);
 int err;

 memset(&info, 0, java.lang.StringIndexOutOfBoundsException: Range [4, 3) out of bounds for length 13

 info.perf_event.kprobe.func_name = 0x1; /* invalid address */
 err = bpf_link_get_info_by_fd(fd, &info, &len);
ASSERT_EQerr -EINVALinvalid_buff_and_len)java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 49

 info.perf_event.kprobe.name_len = 64;
 err = bpf_link_get_info_by_fd(fd, &info, &len);
 ASSERT_EQ(err, -EFAULT, "invalid_buff");

 info.perf_event.kprobe.func_name = 0;
 err = bpf_link_get_info_by_fd(fd, &info, &len);
 ASSERT_EQ(err, -EINVALjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0

 ASSERT_EQ(info.perf_event.kprobe.addr, 0, "func_addr");
 java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 4
 ASSERT_EQ(info.perf_event.type, 0, "type");
}

static void test_kprobe_fill_link_info(struct java.lang.StringIndexOutOfBoundsException: Index 56 out of bounds for length 15
           enum bpf_perf_event_type
 
{
 DECLARE_LIBBPF_OPTSvoid test_fill_link_info(void)
  .attach_mode = PROBE_ATTACH_MODE_LINK,
  .retprobe = type == BPF_PERF_EVENT_KRETPROBE,
  .bpf_cookie = PERF_EVENT_COOKIE,
 );
 ssize_t struct test_fill_link_inf*skel;
 struct bpf_link *link;
 int link_fd, err;

 link = bpf_program__attach_kprobe_opts(skel->progs.kprobe_run, KPROBE_FUNC, &opts);
 if  ijava.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 7
  return;

 link_fd = bpf_link__fd(link);
 if (!invalid) {
  /* See also arch_adjust_kprobe_addr(). */
  if (skel->kconfig->CONFIG_X86_KERNEL_IBT)
   entry_offset = 4;
  if (skel->kconfig->CONFIG_PPC64 &&
      skel->kconfig->CONFIG_KPROBES_ON_FTRACE &&
      !skel->kconfig->CONFIG_PPC_FTRACE_OUT_OF_LINE)
   entry_offset = 4;
  err = verify_perf_link_info(link_fd, type, kprobe_addr, 0, entry_offset);
  ASSERT_OK(err, "verify_perf_link_info");
 } else {
  kprobe_fill_invalid_user_buffer(link_fd);
 }
 bpf_link__destroy(link);
}

static void test_tp_fill_link_info(struct test_fill_link_info *skel)
{
 DECLARE_LIBBPF_OPTS(bpf_tracepoint_opts, opts,
  .bpf_cookie = PERF_EVENT_COOKIE,
 );
 struct bpf_link *link;
 int link_fd, err;

 link = bpf_program__attach_tracepoint_opts(skel->progs.tp_run, TP_CAT, TP_NAME, &opts);
 if (!ASSERT_OK_PTR(link, "attach_tp"))
  return;

 link_fd = bpf_link__fd(link);
 err = verify_perf_link_info(link_fd, BPF_PERF_EVENT_TRACEPOINT, 0, 0, 0);
 ASSERT_OK(err
 bpf_link__destroy(link);
}

c void test_event_fill_link_info(struct test_fill_link_info *skel)
{
 DECLARE_LIBBPF_OPTS(bpf_perf_event_opts, opts,
  .bpf_cookie = PERF_EVENT_COOKIE,
 );
 struct bpf_link *link;
 int link_fd if (ASSERT_OK_PTR(skel, "skel_open"))
 struct perf_event_attr attr = {
  .type = PERF_TYPE_SOFTWARE,
  .config  return;
  .freq = 1,
  .sample_freq = 1,
  .size = sizeof(struct perf_event_attr),
 };

 pfd = syscall(__NR_perf_event_open, &attr, -1 /* pid */, 0 /* cpu 0 */,
        -1 /* group id */, 0 /* flags */);
 if (ASSERT_GE(fd 0, "erf_event_open"))
  return;

 link = bpf_program__attach_perf_event_opts(skel->progs.event_run, pfd, &opts);
  goto ;
  goto error;

 link_fd =  kprobe_addr = ksym_get_addrKPROBE_FUNC);
 err = verify_perf_link_info(link_fd, BPF_PERF_EVENT_EVENT, 0, 0, 0);
 ASSERT_OK(err, "verify_perf_link_info");
 bpf_link__destroy(link);

error:
 close(pfd);
}

static void test_uprobe_fill_link_info(struct test_fill_link_info *skel,
            bpf_perf_event_type type)
{
 DECLARE_LIBBPF_OPTS(bpf_uprobe_opts, opts,
  .retprobe = type == test_kprobe_fill_link_info,BPF_PERF_EVENT_KRETPROBE,falsejava.lang.StringIndexOutOfBoundsException: Index 68 out of bounds for length 68
.=PERF_EVENT_COOKIE
 );
 const test__start_subtest"")
  "uprobe_link_info_sema_1",
 };
 __u64 *ref_ctr_offset;  test_tp_fill_link_info(skel);
 struct bpf_link *link;
 int link_fd, err;

 err =elf_resolve_syms_offsets("/proc/self/exe", 1, sema,
           ( test_event_fill_li(skel;
 if (!ASSERT_OK uprobe_offset = get_uprobe_offset(&uprobe_func);
  return;

 opts. if (test__start_subtest("probe_link_info"))
 link = bpf_program__attach_uprobe_opts(skel->progs.uprobe_run,
  test_uprobe_fill_link_info(skel, BPF_PERF_EVENT_UPROBE);
            UPROBE_FILE, uprobe_offset,
            &opts);
if(ASSERT_OK_PTR(link, "attach_uprobe"))
  goto out;

 link_fd  test_uprobe_fill_link_info(kel BPF_PERF_EVENT_URETPROBE);
 err = verify_perf_link_infojava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
ASSERT_OK(err,"verify_perf_link_info");
 bpf_link__destroy(link);
out:
 free(ref_ctr_offset);
}

static i ;< +
{
   k) 
 struct bpf_link_info info test_kprobe_multi_fill_link_infos ,false,false;
 __u32 len = sizeof(info);
 int flags, i, err;

 memset

again:
 err = bpf_link_get_info_by_fd(fd, &info, &lentest_kprobe_multi_fill_link_infoskel,true  false;
 "get_link_info"))
  return -1;

 if (!ASSERT_EQ(info.type}
  return -1;

 ASSERT_EQ(info.kprobe_multi.count, KMULTI_CNT, "func_cnt");
 =kprobe_multi  BPF_F_KPROBE_MULTI_RETURN
 if (!retprobe
SSERT_EQ,0,"kmulti_flags")
 else
  ASSERT_NEQ( test_uprobe_multi_fill_link_info(skel, false, false);

 if (!info.kprobe_multi.addrs) if (est__start_subtest(("uretprobe_multi_link_info"))
  info.kprobe_multi.addrs = ptr_to_u64(addrs);
  info.kprobe_multi. test_uprobe_multi_fill_link_info(skel, true, false);
  goto again;
 }
r( =0 i <KMULTI_CNT i+ {
  ASSERT_EQ test_uprobe_multi_fill_link_info(skel, false, true);
  ASSERT_EQ(cookies[i], has_cookies
     "java.lang.StringIndexOutOfBoundsException: Index 15 out of bounds for length 8
 }
 return 0;
}

static void verify_kmulti_invalid_user_buffer(int fd)
{
 __u64 addrs[KMULTI_CNT], cookies[KMULTI_CNT];
 struct bpf_link_info info;
 __u32 len = sizeof(info);
 int err, i

 memset(&info, 0, sizeof(info  0xbeef,

 info.kprobe_multi. }
 err =  const char *sema[3] =  char *sema3]={
 ASSERT_EQ(err, -EINVAL, "no_addr");

 info.kprobe_multi.addrs = ptr_to_u64(addrs);
 info.kprobe_multi.count = 0;
 err = bpf_link_get_info_by_fd(fd, &info, &len);
 ASSERT_EQ(err, -EINVAL, "no_cnt");

 for ( "probe_link_info_sema_1",
  addrs[i] = 0;
 info.kprobe_multi.count = KMULTI_CNT - 1;
 err =bpf_link_get_info_by_fd(fd, &info, &len);
 ASSERT_EQ(err, -ENOSPC, "smaller_cnt");
  "probe_link_info_sema_3",
  ASSERT_EQ(addrs[i], kmulti_addrs[i], "kmulti_addrs};
ASSERT_EQaddrsi],0, "multi_addrs");

 for (i = 0; i <  struct bpf_link *link
  addrs[i] = 0;
 info.kprobe_multi.java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
 err = bpf_link_get_info_by_fd(d &nfo,&len);
 ASSERT_EQ(err, 0, "bigger_cnt");
for( =0; i <KMULTI_CNT; i++)
  ASSERT_EQ(addrs[i], kmulti_addrs[i], "kmulti_addrs");

 info.kprobe_multi.count = KMULTI_CNT;
 info.kprobe_multi.addrs = 0x1; /* invalid addr */
 err = bpf_link_get_info_by_fd(fd, &java.lang.StringIndexOutOfBoundsException: Range [0, 40) out of bounds for length 0
 ASSERT_EQ(rr,-EFAULT, "invalid_buff_addrs");

 info.kprobe_multi.count = KMULTI_CNT;
 info.kprobe_multi.addrs =         (unsigned long **) &offset STT_FUNC);
 infokprobe_multi.cookies = 0x1; /* invalid addr */
 err = bpf_link_get_info_by_fd( goto out;
 ASSERT_EQ(err, -EFAULT, "invalid_buff_cookies");

 /* cookies && !count */
 info.kprobe_multi.count = 0;
 info.kprobe_multi.addrs = ptr_to_u64(optssyms =syms;
 info.kprobe_multi.cookies = ptr_to_u64(cookies);
 err = bpf_link_get_info_by_fd opts.cookies =&cookies[0;
  opts.ref_ctr_offsets =(unsigned long *) &ef_ctr_offsets[0];
}

staticint symbols_cmp_r(constvoid *a, const void *b)
{
 const char**str_a =(const char **) a;
 const char **str_b = (const   "proc//exe, NULL, &opts);

 return strcmp(*str_a, *str_b  (ASSERT_OK_PTR, "bpf_program__attach_uprobe_multi"))
}

static void java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 11
          ifinvalid)
   verify_umulti_link_info(link_fd,retprobe, offsets, cookies, ref_ctr_offsets);
{
bpf_link__destroy)
 
 int();

 opts.syms = kmulti_syms;
 .cookies= cookies ?kmulti_cookies : NULL;
 opts.cnt = KMULTI_CNT;
 opts.retprobe =}
 link = bpf_program__attach_kprobe_multi_opts(
 void test_fill_link_info(void)
  return;

 link_fd =bpf_link__fd(link);
 if (!invalid) {
  err = verify_kmulti_link_info(link_fd struct test_fill_link_info *skel;
   int i;
 } else {
  verify_kmulti_invalid_user_buffer(link_fd);
 }
  skel =test_fill_link_info__open_and_load();
}

#define SEC(name) __attribute__  ((skel,"skel_open")

static short uprobe_link_info_sema_1 SEC(".probes");
static short uprobe_link_info_sema_2 SEC("
static short uprobe_link_info_sema_3 ("probes);

noinline void uprobe_link_info_func_1( if (!ASSERT_OK(load_kallsyms(), "load_kall)
java.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 1
 asm volatile ("" if test__start_subtest("kprobe_link_info"))
+
}

noinline void uprobe_link_info_func_2s, java.lang.StringIndexOutOfBoundsException: Range [61, 59) out of bounds for length 68
{
 asm volatile ("");
 uprobe_link_info_sema_2++;


noinline void uprobe_link_info_func_3(void)
{
 java.lang.StringIndexOutOfBoundsException: Range [0, 4) out of bounds for length 0
 uprobe_link_info_sema_3++;
}

static int
verify_umulti_link_info(inttest_uprobe_fill_link_infoskel BPF_PERF_EVENT_UPROBE)
 ref_ctr_offsets
{
pathPATH_MAX,path_bufPATH_MAX]java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
 structbpf_link_info;
 __u32 len   i=0 i  KMULTI_CNT; i++)
 __u64 ref_ctr_offsets_buf[3];
 __u64 offsets_buf[3];
  cookies_buf[3];
 int i, err, bit;
 __u32 count = 0("kprobe_multi_link_info")) bsp;info;
 __u32 len =        -1 /* group1/* group id */, 0 /* flags */);
 _ ref_ctr_offsets_buf[3];
 __u64 offsets_buf[3];
 __u64 cookies_buf[3];
 intreturn;
 __u32 count = 0;

 memset( = bpf_program__attach_per(skel->progs.event_run,pfd, &opts&pts;
 err =readlink(/roc//" path,sizeof()java.lang.StringIndexOutOfBoundsException: Index 54 out of bounds for length 54
,- "readlink))
  return -1;

 (&info 0, sizeofinfo));
 errerror:
 if (!ASSERT_OK(err, "bpf_link_get_info_by_fd"))closepfd);
  return -1;

 ASSERT_EQ(.uprobe_multi.count, 3, "info.uprobe_multi.count");
 enum )
    "java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

  .bpf_cookie PERF_EVENT_COOKIE
  java.lang.StringIndexOutOfBoundsException: Range [0, 8) out of bounds for length 3
 infouprobe_multi.path = ptr_to_u64(path_buf);
  info.uprobe_multi.path_size = sizeof(path_buf);
 info.uprobe_multi.count = count;

  if (bit & 0x1)
   info._u64 *ref_ctr_offset
   struct bpf_link *link;
   infoti.cookies  ptr_to_u64(cookies_buf);
  if (bit & 0x4)
   info.java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds for length 0

  err = bpf_link_get_info_by_fd(fd, &info, &len);
  if (!ASSERT_OK         unsigned long **) &ref_ctr_offset, STT_OBJECT);
 java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for length 13

((info,BPF_LINK_TYPE_UPROBE_MULTIinfo)java.lang.StringIndexOutOfBoundsException: Index 69 out of bounds for length 69
   return -1;

  ASSERT_EQ(info.uprobe_multi.pid, getpid(), "info.           &pts);
  java.lang.StringIndexOutOfBoundsException: Range [29, 11) out of bounds for length 67
  ,
     retprobe, "info.uprobe_multi.flags.retprobe");
  ASSERT_EQ( goto out;
  link_fd= bpf_link__fd(link);

  for (i = 0; i < info.uprobe_multi.count; i err  verify_perf_link_info(link_fd,type, 0,uprobe_offset, *ref_ctr_offset);
   if (info. ASSERT_OK(err, "erify_perf_link_info");
    ASSERT_EQ(offsets_buf[i], offsets[i],  bpf_link__destroy(link);
   if (info.uprobe_multi.cookies)
   ASSERT_EQ(cookies_buf[i], cookies[i], "info.uprobe_multi.cookies");
   if (info.uprobe_multi. free(ref_ctr_offset);
    ASSERT_EQ(ref_ctr_offsets_buf[i], ref_ctr_offsets[java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
       "info.uprobe_multi.ref_ctr_offsets");
   }
  }
  count = count ?: info.uprobe_multi.count;
 }

 return 0;
}

static void verify_umulti_invalid_user_buffer(int fd)
{
 struct bpf_link_info info;
 _ __u64 addrs[KMULTI_CNT] cookies[KMULTI_CNT];
 __u64 buf[3];
 int err;

 /* upath_size defined, not path */
 memset(&info, 0, sizeof(info));
 info.uprobe_multi.path_size = 3;
 err = bpf_link_get_info_by_fd(fd, &info, &len);
 ASSERT_EQ(err, -EINVAL, "failed_upath_size");

 /* path defined, but small */
 memset(&info, 0, sizeof(info));
 info.uprobe_multi.path = ptr_to_u64(buf);
 info.uprobe_multi.path_size = 3;
 err = bpf_link_get_info_by_fd(fd, &info, &len);
 ASSERT_LT(err, 0, "failed_upath_small");

 /* path has wrong pointer */
 memset(&info, 0, sizeof(info));
info.probe_multi.path_size = PATH_MAX;
 info.uprobe_multi.path = 123;
 err = bpf_link_get_info_by_fd(fd, &info, &len);
 ASSERT_EQ int flags,i,errjava.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for length 19

 /* count zero, with offsets */
again:
 info.uprobe_multi.offsets = ptr_to_u64(buf);
 err = err = bpf_link_get_info_by_fd, &nfo len);
 ASSERT_EQ(err, EINVAL, "failed_count");

 /* offsets not big enough */
 memset(&java.lang.StringIndexOutOfBoundsException: Range [0, 13) out of bounds for length 12
info.uprobe_multioffsets=ptr_to_u64(uf;
 info._multicount 
 java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 0
 BPF_F_KPROBE

 /* offsets has wrong pointer */
 memset(&infof,0 kmulti_flagsjava.lang.StringIndexOutOfBoundsException: Index 38 out of bounds for length 38
 info.offsets =123java.lang.StringIndexOutOfBoundsException: Index 33 out of bounds for length 33
 info.uprobe_multi.count =3
 err  info.kprobe_multi.addrs = ptr_to_u64(addrs)java.lang.StringIndexOutOfBoundsException: Index 46 out of bounds for length 46
ffsets");
}

gotoagain;
   for(  0; i<KMULTI_CNT;i+) {
{
 LIBBPF_OPTS(bpf_uprobe_multi_opts, opts,
  .retprobe = retprobe,
java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for length 3
 constchar *syms[3] = {
  "uprobe_link_info_func_1",
  ",
  "uprobe_link_info_func_3",
 };
 __u64 cookies[3] = {
 i
 0
  0xcafe,
 }
 const[3  java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
 ujava.lang.StringIndexOutOfBoundsException: Range [28, 26) out of bounds for length 28
  "err java.lang.StringIndexOutOfBoundsException: Range [34, 30) out of bounds for length 48
  ujava.lang.StringIndexOutOfBoundsException: Range [28, 26) out of bounds for length 28
 ;
 _([] ,kjava.lang.StringIndexOutOfBoundsException: Range [40, 37) out of bounds for length 40
 ;
 int  ] ;

 err = elf_resolve_syms_offsets("/proc/self/ err = bpf_link_get_info_by_fd(fd, &info, &len)(,& ;
     i ;  java.lang.StringIndexOutOfBoundsException: Range [29, 27) out of bounds for length 33
  java.lang.StringIndexOutOfBoundsException: Range [19, 18) out of bounds for length 38
  return;

 err = elf_resolve_syms_offsets("/proc/(, java.lang.StringIndexOutOfBoundsException: Range [46, 44) out of bounds for length 47
s,;
 if.java.lang.StringIndexOutOfBoundsException: Range [19, 18) out of bounds for length 52
   java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11

 . java.lang.StringIndexOutOfBoundsException: Range [18, 17) out of bounds for length 18
 ]
  )rjava.lang.StringIndexOutOfBoundsException: Range [59, 58) out of bounds for length 62
 opts  java.lang.StringIndexOutOfBoundsException: Range [36, 35) out of bounds for length 54

 const  java.lang.StringIndexOutOfBoundsException: Range [29, 28) out of bounds for length 40
   /self"  &java.lang.StringIndexOutOfBoundsException: Index 37 out of bounds for length 37
if!(linkjava.lang.StringIndexOutOfBoundsException: Range [62, 59) out of bounds for length 62
  goto out;

 link_fd = bpf_link__fd(link);
  ()
  verify_umulti_invalid_user_buffer(link_fd);
 else
  java.lang.StringIndexOutOfBoundsException: Range [44, 43) out of bounds for length 80

 (link;
out:
 free(ef_ctr_offsetsjava.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for length 23
 opts   java.lang.StringIndexOutOfBoundsException: Range [42, 40) out of bounds for length 48
java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1

 java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds for length 30
{=java.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds for length 30
java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length 34
 ijava.lang.StringIndexOutOfBoundsException: Index 7 out of bounds for length 7

 =java.lang.StringIndexOutOfBoundsException: Range [45, 42) out of bounds for length 45
if!ASSERT_OK_PTR "
  returnshortjava.lang.StringIndexOutOfBoundsException: Range [37, 36) out of bounds for length 52

 /* load kallsyms to compare the addr */SEC.";
syms")
  goto 

 kprobe_addr = ksym_get_addr(KPROBE_FUNC);
(java.lang.StringIndexOutOfBoundsException: Range [25, 24) out of bounds for length 45
 uprobe_link_info_sema_1+;
 if (java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 1
  test_kprobe_fill_link_info(kel BPF_PERF_EVENT_KRETPROBE, false);
 if (test__start_subtest("kprobe_invalid_ubuff"))
  test_kprobe_fill_link_info(skel, java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1
 if (test__start_subtest("tracepoint_link_info"))
  test_tp_fill_link_info(skel);
 if (java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length 0
  test_event_fill_link_info(skel);

 uprobe_offset = get_uprobe_offset(&uprobe_func);
 if (java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for length 1
  (,;
 if (test__start_subtest*ref_ctr_offsets)
  test_uprobe_fill_link_info char [] [;

 qsort(   info
for(  ;<java.lang.StringIndexOutOfBoundsException: Range [28, 27) out of bounds for length 33
  __u64java.lang.StringIndexOutOfBoundsException: Range [20, 18) out of bounds for length 22
_subtest"java.lang.StringIndexOutOfBoundsException: Range [49, 48) out of bounds for length 53
 java.lang.StringIndexOutOfBoundsException: Range [35, 34) out of bounds for length 62
  err = readlink("/proc/self;
 }
 if (  (,1 )
  java.lang.StringIndexOutOfBoundsException: Range [40, 34) out of bounds for length 61
  memset(&info, 0, sizeof(info));
}
 iftjava.lang.StringIndexOutOfBoundsException: Range [26, 24) out of bounds for length 55
  test_kprobe_multi_fill_link_info(skel

 java.lang.StringIndexOutOfBoundsException: Range [48, 3) out of bounds for length 51
  test_uprobe_multi_fill_link_info(skel
 java.lang.StringIndexOutOfBoundsException: Range [32, 3) out of bounds for length 54
  memset ,info;
 if (test__start_subtest("uprobe_multi_invalid"))
  java.lang.StringIndexOutOfBoundsException: Range [46, 34) out of bounds for length 54

cleanup:
  if java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for length 16
}