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2d11c65071
kernel_optimize_test/tools/perf
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Wang Nan 2d11c65071 perf record: Prevent reading invalid data in record__mmap_read 
When record__mmap_read() requires data more than the size of ring
buffer, drop those data to avoid accessing invalid memory.

This can happen when reading from overwritable ring buffer, which
should be avoided. However, check this for robustness.

Signed-off-by: Wang Nan <wangnan0@huawei.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Zefan Li <lizefan@huawei.com>
Cc: pi3orama@163.com
Link: http://lkml.kernel.org/r/1463987628-163563-3-git-send-email-wangnan0@huawei.com
Signed-off-by: He Kuang <hekuang@huawei.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2016-05-23 18:22:46 -03:00
..
arch perf dwarf: Guard !x86_64 definitions under #ifdef else clause 2016-05-12 11:26:59 -03:00
bench perf bench: Remove one more die() call 2016-04-26 13:28:40 -03:00
config perf probe: Check if dwarf_getlocations() is available 2016-05-12 11:26:59 -03:00
Documentation perf report: Add srcline_from/to branch sort keys 2016-05-23 11:25:16 -03:00
jvmti perf jit: Add support for using TSC as a timestamp 2016-04-01 18:42:55 -03:00
python perf python: Support the PERF_RECORD_SWITCH event 2015-10-07 19:41:50 -03:00
scripts perf script: Update export-to-postgresql to support callchain export 2016-05-06 13:00:55 -03:00
tests perf tests: Add test to check backward ring buffer 2016-05-09 18:11:22 -03:00
trace perf trace: Move seccomp args beautifiers to tools/perf/trace/beauty/ 2016-05-11 13:06:00 -03:00
ui perf hists: Move sort__has_comm into struct perf_hpp_list 2016-05-05 21:04:02 -03:00
util perf evlist: Add API to pause/resume 2016-05-23 18:22:00 -03:00
.gitignore
Build perf tools: Set and pass DOCDIR to builtin-report.c 2016-01-12 12:42:07 -03:00
builtin-annotate.c perf tools: Set buildid dir under symfs when --symfs is provided 2016-05-20 11:43:58 -03:00
builtin-bench.c perf subcmd: Create subcmd library 2015-12-17 14:27:14 -03:00
builtin-buildid-cache.c perf symbols: Introduce DSO__NAME_KALLSYMS and DSO__NAME_KCORE 2016-05-16 23:11:48 -03:00
builtin-buildid-list.c perf subcmd: Create subcmd library 2015-12-17 14:27:14 -03:00
builtin-config.c perf config: Make show_config() use perf_config_set 2016-04-14 09:15:47 -03:00
builtin-data.c perf subcmd: Create subcmd library 2015-12-17 14:27:14 -03:00
builtin-diff.c perf tools: Set buildid dir under symfs when --symfs is provided 2016-05-20 11:43:58 -03:00
builtin-evlist.c perf evlist: Add --trace-fields option to show trace fields 2016-01-08 14:23:02 -03:00
builtin-help.c perf help: Make check_emacsclient_version to check strbuf APIs 2016-05-10 11:56:14 -03:00
builtin-inject.c perf tools: Add time conversion event 2016-03-31 10:52:24 -03:00
builtin-kmem.c perf callchain: Start moving away from global per thread cursors 2016-04-14 14:48:07 -03:00
builtin-kvm.c perf evsel: Do not use globals in config() 2016-04-11 22:18:20 -03:00
builtin-list.c perf subcmd: Create subcmd library 2015-12-17 14:27:14 -03:00
builtin-lock.c perf subcmd: Create subcmd library 2015-12-17 14:27:14 -03:00
builtin-mem.c perf mem: Add -U/-K (--all-user/--all-kernel) options 2016-03-30 11:14:07 -03:00
builtin-probe.c perf subcmd: Create subcmd library 2015-12-17 14:27:14 -03:00
builtin-record.c perf record: Prevent reading invalid data in record__mmap_read 2016-05-23 18:22:46 -03:00
builtin-report.c perf tools: Set buildid dir under symfs when --symfs is provided 2016-05-20 11:43:58 -03:00
builtin-sched.c perf sched map: Display only given cpus 2016-04-13 10:11:52 -03:00
builtin-script.c perf tools: Set buildid dir under symfs when --symfs is provided 2016-05-20 11:43:58 -03:00
builtin-stat.c perf/core improvements and fixes: 2016-05-20 08:20:14 +02:00
builtin-timechart.c perf tools: Set buildid dir under symfs when --symfs is provided 2016-05-20 11:43:58 -03:00
builtin-top.c perf top: Use machine->kptr_restrict_warned 2016-05-20 11:43:55 -03:00
builtin-trace.c perf trace: Use the ptr->name beautifier as default for "filename" args 2016-05-23 16:41:00 -03:00
builtin-version.c perf tools: Move cmd_version() to builtin-version.c 2015-12-09 13:42:03 -03:00
builtin.h perf tools: Remove needless 'extern' from function prototypes 2016-03-23 15:06:35 -03:00
command-list.txt perf tools: Do not show trace command if it's not compiled in 2016-01-08 12:46:17 -03:00
CREDITS
design.txt
Makefile perf build tests: Do parallell builds with 'build-test' 2016-02-04 15:57:00 -03:00
Makefile.perf perf tools: Build syscall table .c header from kernel's syscall_64.tbl 2016-04-08 09:58:14 -03:00
MANIFEST perf bench: Fix detached tarball building due to missing 'perf bench memcpy' headers 2016-03-24 12:28:57 -03:00
perf-archive.sh
perf-completion.sh
perf-read-vdso.c
perf-sys.h
perf-with-kcore.sh
perf.c perf tools: Separate accounting of contexts and real addresses in a stack trace 2016-05-16 23:11:54 -03:00
perf.h perf tools: Ditch record_opts.callgraph_set 2016-04-18 12:26:27 -03:00