Riccardo Mancini f21987d7bb perf map: Fix dso->nsinfo refcounting ...

[ Upstream commit 2d6b74baa7 ]

ASan reports a memory leak of nsinfo during the execution of

  # perf test "31: Lookup mmap thread"

The leak is caused by a refcounted variable being replaced without
dropping the refcount.

This patch makes sure that the refcnt of nsinfo is decreased whenever a
refcounted variable is replaced with a new value.

Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Fixes: bf2e710b3c ("perf maps: Lookup maps in both intitial mountns and inner mountns.")
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Krister Johansen <kjlx@templeofstupid.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/55223bc8821b34ccb01f92ef1401c02b6a32e61f.1626343282.git.rickyman7@gmail.com
[ Split from a larger patch ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2021-07-28 14:35:34 +02:00

..

arch

perf test: Avoid an msan warning in a copied stack.

2020-11-16 14:10:58 -03:00

bench

tools arch: Update arch/x86/lib/mem{cpy,set}_64.S copies used in 'perf bench mem memcpy'

2020-11-12 17:55:41 -03:00

Documentation

perf c2c: Update documentation for metrics reorganization

2020-10-15 12:02:12 -03:00

examples/bpf

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include/bpf

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jvmti

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pmu-events

perf jevents: Fix getting maximum number of fds

2021-06-03 09:00:39 +02:00

python

tweewide: Fix most Shebang lines

2021-05-22 11:40:55 +02:00

scripts

perf scripts python: exported-sql-viewer.py: Fix warning display

2021-06-03 09:00:28 +02:00

tests

perf test bpf: Free obj_buf

2021-07-25 14:36:21 +02:00

trace

perf beauty: Update copy of linux/socket.h with the kernel sources

2021-06-23 14:42:54 +02:00

ui

perf hists browser: Increase size of 'buf' in perf_evsel__hists_browse()

2020-11-03 09:11:45 -03:00

util

perf map: Fix dso->nsinfo refcounting

2021-07-28 14:35:34 +02:00

.gitignore

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Build

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builtin-annotate.c

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builtin-bench.c

perf bench: Add build-id injection benchmark

2020-10-13 10:59:42 -03:00

builtin-buildid-cache.c

perf tools: Pass build_id object to build_id__sprintf()

2020-10-14 08:46:22 -03:00

builtin-buildid-list.c

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builtin-c2c.c

perf c2c: Add metrics "RMT Load Hit"

2020-10-15 09:34:51 -03:00

builtin-config.c

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builtin-data.c

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builtin-diff.c

perf diff: Fix error return value in __cmd_diff()

2020-11-27 14:21:23 -03:00

builtin-evlist.c

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builtin-ftrace.c

perf ftrace: Fix access to pid in array when setting a pid filter

2021-05-07 11:04:31 +02:00

builtin-help.c

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builtin-inject.c

perf inject: Fix dso->nsinfo refcounting

2021-07-28 14:35:34 +02:00

builtin-kallsyms.c

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builtin-kmem.c

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builtin-kvm.c

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builtin-list.c

perf list: Remove dead code in argument check

2020-09-09 11:12:10 -03:00

builtin-lock.c

perf lock: Don't free "lock_seq_stat" if read_count isn't zero

2020-11-12 17:55:41 -03:00

builtin-mem.c

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builtin-probe.c

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builtin-record.c

perf record: Fix continue profiling after draining the buffer

2021-03-04 11:38:09 +01:00

builtin-report.c

perf report: Disable ordered_events for raw dump

2020-09-01 12:20:25 -03:00

builtin-sched.c

perf sched: Show start of latency as well

2020-10-13 11:01:42 -03:00

builtin-script.c

perf script: Display negative tid in non-sample events

2020-09-17 16:06:22 -03:00

builtin-stat.c

perf tools: Allow creation of cgroup without open

2020-09-28 09:18:06 -03:00

builtin-timechart.c

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builtin-top.c

perf top: Skip side-band event setup if HAVE_LIBBPF_SUPPORT is not set

2020-08-21 10:22:23 -03:00

builtin-trace.c

perf trace: Fix segfault when trying to trace events by cgroup

2020-11-03 08:31:03 -03:00

builtin-version.c

perf tools: Make GTK2 support opt-in

2020-09-04 17:11:59 -03:00

builtin.h

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check-headers.sh

perf tools: Separate the checking of headers only used to build beautification tables

2020-09-29 08:56:38 -03:00

command-list.txt

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CREDITS

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design.txt

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Makefile

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Makefile.config

perf tools: Fix dynamic libbpf link

2021-05-19 10:13:13 +02:00

Makefile.perf

perf build: Fix ccache usage in $(CC) when generating arch errno table

2021-03-17 17:06:16 +01:00

MANIFEST

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perf-archive.sh

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perf-completion.sh

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perf-read-vdso.c

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perf-sys.h

perf tests: Call test_attr__open() directly

2020-09-10 11:55:37 -03:00

perf-with-kcore.sh

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perf.c

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perf.h

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