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Ian Rogers be113e082b libperf evlist: Avoid out-of-bounds access 
[ Upstream commit 1947b92464 ]

Parallel testing appears to show a race between allocating and setting
evsel ids. As there is a bounds check on the xyarray it yields a segv
like:

```
AddressSanitizer:DEADLYSIGNAL

=================================================================

==484408==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000010

==484408==The signal is caused by a WRITE memory access.

==484408==Hint: address points to the zero page.

    #0 0x55cef5d4eff4 in perf_evlist__id_hash tools/lib/perf/evlist.c:256
    #1 0x55cef5d4f132 in perf_evlist__id_add tools/lib/perf/evlist.c:274
    #2 0x55cef5d4f545 in perf_evlist__id_add_fd tools/lib/perf/evlist.c:315
    #3 0x55cef5a1923f in store_evsel_ids util/evsel.c:3130
    #4 0x55cef5a19400 in evsel__store_ids util/evsel.c:3147
    #5 0x55cef5888204 in __run_perf_stat tools/perf/builtin-stat.c:832
    #6 0x55cef5888c06 in run_perf_stat tools/perf/builtin-stat.c:960
    #7 0x55cef58932db in cmd_stat tools/perf/builtin-stat.c:2878
...
```

Avoid this crash by early exiting the perf_evlist__id_add_fd and
perf_evlist__id_add is the access is out-of-bounds.

Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Yang Jihong <yangjihong1@huawei.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20240229070757.796244-1-irogers@google.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2024-04-13 13:01:45 +02:00
..
api libapi: Add missing linux/types.h header to get the __u64 type on io.h 2024-01-25 14:52:50 -08:00
bpf libbpf: Fix NULL pointer dereference in bpf_object__collect_prog_relos 2024-02-23 08:54:45 +01:00
lockdep
…
perf libperf evlist: Avoid out-of-bounds access 2024-04-13 13:01:45 +02:00
subcmd libsubcmd: Fix memory leak in uniq() 2024-02-23 08:54:51 +01:00
symbol
…
traceevent KVM: x86/mmu: Rename "nxe" role bit to "efer_nx" for macro shenanigans 2021-06-24 18:00:41 -04:00
argv_split.c
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bitmap.c tools lib: Adopt bitmap_intersects() operation from the kernel sources 2021-06-30 15:28:00 -03:00
ctype.c
…
find_bit.c tools: sync lib/find_bit implementation 2021-05-06 19:24:12 -07:00
hweight.c
…
rbtree.c
…
str_error_r.c
…
string.c tools lib: Adopt memchr_inv() from kernel 2020-11-27 08:34:52 -03:00
vsprintf.c
…
zalloc.c
…