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linux_dsm_epyc7002/tools/perf/util
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Arnaldo Carvalho de Melo c53412ee8c perf evsel: Do not access outside hw cache name arrays 
We have to check if the values are >= *_MAX, not just >, fix it.

From the bugzilla report:

''In file /tools/perf/util/evsel.c  function __perf_evsel__hw_cache_name
it appears that there is a bug that reads beyond the end of the buffer.
The statement "if (type > PERF_COUNT_HW_CACHE_MAX)" allows type to be
equal to the maximum value. Later, when statement "if
(!perf_evsel__is_cache_op_valid(type, op))" is executed, the function
can access array perf_evsel__hw_cache_stat[type] beyond the end of the
buffer.

It appears to me that the statement "if (type > PERF_COUNT_HW_CACHE_MAX)"
should be "if (type >= PERF_COUNT_HW_CACHE_MAX)"

Bug found with Coverity and manual code review. No attempts were made to
execute the code with a maximum type value.''

Committer note:

Testing it:

  $ perf record -e $(echo $(perf list cache | cut -d \[ -f1) | sed 's/ /,/g') usleep 1
  [ perf record: Woken up 16 times to write data ]
  [ perf record: Captured and wrote 0.023 MB perf.data (34 samples) ]
  $ perf evlist
  L1-dcache-load-misses
  L1-dcache-loads
  L1-dcache-stores
  L1-icache-load-misses
  LLC-load-misses
  LLC-loads
  LLC-store-misses
  LLC-stores
  branch-load-misses
  branch-loads
  dTLB-load-misses
  dTLB-loads
  dTLB-store-misses
  dTLB-stores
  iTLB-load-misses
  iTLB-loads
  node-load-misses
  node-loads
  node-store-misses
  node-stores
  $ perf list cache

  List of pre-defined events (to be used in -e):

    L1-dcache-load-misses        [Hardware cache event]
    L1-dcache-loads              [Hardware cache event]
    L1-dcache-stores             [Hardware cache event]
    L1-icache-load-misses        [Hardware cache event]
    LLC-load-misses              [Hardware cache event]
    LLC-loads                    [Hardware cache event]
    LLC-store-misses             [Hardware cache event]
    LLC-stores                   [Hardware cache event]
    branch-load-misses           [Hardware cache event]
    branch-loads                 [Hardware cache event]
    dTLB-load-misses             [Hardware cache event]
    dTLB-loads                   [Hardware cache event]
    dTLB-store-misses            [Hardware cache event]
    dTLB-stores                  [Hardware cache event]
    iTLB-load-misses             [Hardware cache event]
    iTLB-loads                   [Hardware cache event]
    node-load-misses             [Hardware cache event]
    node-loads                   [Hardware cache event]
    node-store-misses            [Hardware cache event]
    node-stores                  [Hardware cache event]
  $

Reported-by: Brian Sweeney <bsweeney@lgsinnovations.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=153351
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-08-18 16:39:46 -03:00
..
include perf tools: Remove tools/perf/util/include/linux/const.h 2016-07-18 17:53:22 -03:00
intel-pt-decoder perf intel-pt: Fix ip compression 2016-08-12 14:39:48 -03:00
libunwind perf unwind: Fix wrongly used regs for aarch64 unwind 2016-06-23 10:30:31 -03:00
scripting-engines perf tools: Make is_printable_array global 2016-07-18 19:49:47 -03:00
alias.c perf tools: Remove needless includes from cache.h 2016-07-12 15:19:58 -03:00
annotate.c perf annotate: Plug filename string leak 2016-08-01 18:49:13 -03:00
annotate.h perf annotate: Introduce strerror for handling symbol__disassemble() errors 2016-08-01 18:18:16 -03:00
auxtrace.c
auxtrace.h perf auxtrace: Add option to feed branches to the thread stack 2016-06-23 17:02:59 -03:00
bpf-loader.c perf bpf: Support BPF program attach to tracepoints 2016-07-13 23:09:04 -03:00
bpf-loader.h perf bpf: Rename bpf__foreach_tev() to bpf__foreach_event() 2016-07-13 23:09:03 -03:00
bpf-prologue.c
bpf-prologue.h
Build tools lib api: Add str_error_c to libapi 2016-07-27 17:16:43 -03:00
build-id.c perf probe: Support @BUILDID or @FILE suffix for SDT events 2016-07-13 23:09:08 -03:00
build-id.h perf probe: Support @BUILDID or @FILE suffix for SDT events 2016-07-13 23:09:08 -03:00
cache.h perf tools: Remove needless includes from cache.h 2016-07-12 15:19:58 -03:00
call-path.c perf tools: Refactor code to move call path handling out of thread-stack 2016-05-06 13:00:43 -03:00
call-path.h perf tools: Refactor code to move call path handling out of thread-stack 2016-05-06 13:00:43 -03:00
callchain.c perf hists: Move sort__has_parent into struct perf_hpp_list 2016-05-05 21:03:59 -03:00
callchain.h perf tests: Fix hist accumulation test 2016-07-04 19:39:01 -03:00
cgroup.c perf evlist: Rename for_each() macros to for_each_entry() 2016-06-23 11:26:15 -03:00
cgroup.h
cloexec.c perf tools: Introduce weak alternative to sched_getcpu() 2016-07-12 15:20:34 -03:00
cloexec.h
color.c perf tools: Uninline scnprintf() and vscnprint() 2016-07-12 15:20:24 -03:00
color.h
comm.c
comm.h
config.c perf config: Introduce new init() and exit() 2016-06-23 17:20:04 -03:00
config.h perf config: Introduce new init() and exit() 2016-06-23 17:20:04 -03:00
counts.c
counts.h
cpumap.c perf cpu_map: Add more helpers 2016-07-18 19:42:47 -03:00
cpumap.h perf cpu_map: Add more helpers 2016-07-18 19:42:47 -03:00
ctype.c
data-convert-bt.c perf data ctf: Generate fork and exit events to CTF output 2016-06-28 10:54:58 -03:00
data-convert-bt.h perf data ctf: Pass convert options through opts structure 2016-06-28 10:54:55 -03:00
data-convert.h perf data ctf: Add 'all' option 2016-06-28 10:54:56 -03:00
data.c tools: Introduce str_error_r() 2016-07-12 15:19:47 -03:00
data.h
db-export.c perf thread: Adopt get_main_thread from db-export.c 2016-05-30 12:41:43 -03:00
db-export.h perf script: Add call path id to exported sample in db export 2016-05-06 13:00:53 -03:00
debug.c
debug.h tools: Introduce str_error_r() 2016-07-12 15:19:47 -03:00
demangle-java.c
demangle-java.h
demangle-rust.c perf symbols: Add Rust demangling 2016-07-12 16:12:38 -03:00
demangle-rust.h perf symbols: Add Rust demangling 2016-07-12 16:12:38 -03:00
dso.c tools: Introduce str_error_r() 2016-07-12 15:19:47 -03:00
dso.h perf tools: Uninline scnprintf() and vscnprint() 2016-07-12 15:20:24 -03:00
dwarf-aux.c perf probe: Check if dwarf_getlocations() is available 2016-05-12 11:26:59 -03:00
dwarf-aux.h
env.c perf header: Transform nodes string info to struct 2016-07-04 19:39:01 -03:00
env.h perf header: Transform nodes string info to struct 2016-07-04 19:39:01 -03:00
event.c perf tools: Change cpu_map__fprintf output 2016-06-30 18:27:45 -03:00
event.h Revert "perf tools: event.h needs asm/perf_regs.h" 2016-07-25 11:58:56 -03:00
evlist.c perf evsel: Introduce constructor for cycles event 2016-07-28 18:33:20 -03:00
evlist.h perf evlist: Make {pause,resume} internal helpers 2016-07-15 17:27:50 -03:00
evsel_fprintf.c
evsel.c perf evsel: Do not access outside hw cache name arrays 2016-08-18 16:39:46 -03:00
evsel.h perf evsel: Introduce constructor for cycles event 2016-07-28 18:33:20 -03:00
find-vdso-map.c
genelf_debug.c
genelf.c
genelf.h
generate-cmdlist.sh
group.h perf stat: Basic support for TopDown in perf stat 2016-06-06 17:04:15 -03:00
header.c perf header: Transform nodes string info to struct 2016-07-04 19:39:01 -03:00
header.h
help-unknown-cmd.c perf tools: Uninline scnprintf() and vscnprint() 2016-07-12 15:20:24 -03:00
help-unknown-cmd.h
hist.c perf hists: Introduce output_resort_cb method 2016-08-02 16:33:28 -03:00
hist.h perf hists: Introduce output_resort_cb method 2016-08-02 16:33:28 -03:00
intel-bts.c perf auxtrace: Add option to feed branches to the thread stack 2016-06-23 17:02:59 -03:00
intel-bts.h
intel-pt.c perf auxtrace: Add option to feed branches to the thread stack 2016-06-23 17:02:59 -03:00
intel-pt.h
intlist.c
intlist.h perf intlist: Rename for_each() macros to for_each_entry() 2016-06-23 11:39:19 -03:00
jit.h
jitdump.c perf jitdump: Add the right header to get the major()/minor() definitions 2016-08-15 13:10:28 -03:00
jitdump.h
kvm-stat.h
levenshtein.c perf tools: Remove needless includes from cache.h 2016-07-12 15:19:58 -03:00
levenshtein.h
llvm-utils.c perf tools: Remove needless includes from cache.h 2016-07-12 15:19:58 -03:00
llvm-utils.h perf llvm: Allow dump llvm output object file using llvm.dump-obj 2016-06-21 13:18:34 -03:00
lzma.c
machine.c perf s390: Fix 'start' address of module's map 2016-07-26 16:46:12 -03:00
machine.h perf s390: Fix 'start' address of module's map 2016-07-26 16:46:12 -03:00
map.c perf probe: Warn unmatched function filter correctly 2016-07-18 19:46:34 -03:00
map.h perf unwind: Call unwind__prepare_access for forked thread 2016-07-04 20:27:25 -03:00
mem-events.c perf mem: Add --ldlat option 2016-06-15 10:35:27 -03:00
mem-events.h perf mem: Add --ldlat option 2016-06-15 10:35:27 -03:00
ordered-events.c
ordered-events.h
parse-branch-options.c
parse-branch-options.h
parse-events.c perf tools: Enable overwrite settings 2016-07-15 17:27:51 -03:00
parse-events.h perf tools: Enable overwrite settings 2016-07-15 17:27:51 -03:00
parse-events.l perf tools: Enable overwrite settings 2016-07-15 17:27:51 -03:00
parse-events.y
parse-regs-options.c
parse-regs-options.h
path.c perf tools: Remove needless includes from cache.h 2016-07-12 15:19:58 -03:00
perf_regs.c perf tools: Fix perf regs mask generation 2016-05-11 21:54:06 +10:00
perf_regs.h
PERF-VERSION-GEN
pmu.c perf pmu: Make pmu_formats_string to check return value of strbuf 2016-05-10 11:57:52 -03:00
pmu.h
pmu.l
pmu.y
probe-event.c perf probe ppc64le: Fix probe location when using DWARF 2016-08-09 12:14:29 -03:00
probe-event.h perf probe ppc64le: Fix probe location when using DWARF 2016-08-09 12:14:29 -03:00
probe-file.c perf probe: Release resources on error when handling exit paths 2016-08-15 18:10:59 -03:00
probe-file.h perf list: Show SDT and pre-cached events 2016-07-13 23:09:07 -03:00
probe-finder.c perf probe: Support signedness casting 2016-08-09 10:52:22 -03:00
probe-finder.h
pstack.c
pstack.h
python-ext-sources tools lib api: Add str_error_c to libapi 2016-07-27 17:16:43 -03:00
python.c perf tools: Make is_printable_array global 2016-07-18 19:49:47 -03:00
quote.c perf quote: Disentangle headers 2016-07-12 15:19:55 -03:00
quote.h perf quote: Disentangle headers 2016-07-12 15:19:55 -03:00
rb_resort.h perf rb_resort: Rename for_each() macros to for_each_entry() 2016-06-23 11:35:07 -03:00
rblist.c
rblist.h
record.c perf evlist: Rename for_each() macros to for_each_entry() 2016-06-23 11:26:15 -03:00
session.c perf session: Don't warn about out of order event if write_backward is used 2016-07-15 17:27:51 -03:00
session.h
setup.py
sort.c perf hists: Trim libtraceevent trace_seq buffers 2016-08-09 10:46:56 -03:00
sort.h perf hists: Introduce hist_entry_ops 2016-07-12 00:00:39 -03:00
srcline.c
stat-shadow.c perf stat: Add computation of TopDown formulas 2016-06-06 17:04:16 -03:00
stat.c perf evlist: Rename for_each() macros to for_each_entry() 2016-06-23 11:26:15 -03:00
stat.h perf stat: Add computation of TopDown formulas 2016-06-06 17:04:16 -03:00
strbuf.c perf strbuf: Add missing headers 2016-07-12 15:19:55 -03:00
strbuf.h perf strbuf: Add missing headers 2016-07-12 15:19:55 -03:00
strfilter.c
strfilter.h
string.c
strlist.c
strlist.h perf tools: Rename strlist_for_each() macros to for_each_entry() 2016-06-23 11:35:01 -03:00
svghelper.c
svghelper.h
symbol_fprintf.c
symbol-elf.c perf symbols: Fix annotation of objects with debuginfo files 2016-08-15 16:49:57 -03:00
symbol-minimal.c
symbol.c perf symbols: Use proper dso name for is_regular_file 2016-06-28 10:54:54 -03:00
symbol.h perf sdt: ELF support for SDT 2016-07-04 19:38:59 -03:00
syscalltbl.c
syscalltbl.h
target.c perf target: str_error_r() always returns the buffer it receives 2016-07-29 11:54:35 -03:00
target.h
term.c
term.h
thread_map.c perf tools: Rename strlist_for_each() macros to for_each_entry() 2016-06-23 11:35:01 -03:00
thread_map.h
thread-stack.c perf script: Add callindent option 2016-06-23 17:04:26 -03:00
thread-stack.h perf script: Add callindent option 2016-06-23 17:04:26 -03:00
thread.c perf unwind: Call unwind__prepare_access for forked thread 2016-07-04 20:27:25 -03:00
thread.h perf unwind: Move unwind__prepare_access from thread_new into thread__insert_map 2016-06-07 12:08:52 -03:00
tool.h
top.c
top.h perf top: Use machine->kptr_restrict_warned 2016-05-20 11:43:55 -03:00
trace-event-info.c
trace-event-parse.c
trace-event-read.c
trace-event-scripting.c
trace-event.c perf tools: Introduce trace_event__tp_format_id() 2016-07-12 16:14:52 -03:00
trace-event.h perf tools: Introduce trace_event__tp_format_id() 2016-07-12 16:14:52 -03:00
trigger.h perf tools: Introduce trigger class 2016-04-28 09:58:58 -03:00
tsc.c
tsc.h
unwind-libdw.c perf unwind: Use addr_location::addr instead of ip for entries 2016-08-16 15:23:29 -03:00
unwind-libdw.h
unwind-libunwind-local.c perf unwind: Use addr_location::addr instead of ip for entries 2016-08-16 15:23:29 -03:00
unwind-libunwind.c perf unwind: Add initialized arg into unwind__prepare_access 2016-07-04 20:27:12 -03:00
unwind.h perf unwind: Add initialized arg into unwind__prepare_access 2016-07-04 20:27:12 -03:00
usage.c
util.c perf tools: Make is_printable_array global 2016-07-18 19:49:47 -03:00
util.h perf tools: Make is_printable_array global 2016-07-18 19:49:47 -03:00
values.c
values.h
vdso.c perf tools: Find right DSO taking into account if binary is 32 or 64-bit 2016-06-23 10:25:58 -03:00
vdso.h
xyarray.c
xyarray.h
zlib.c