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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2009-08-19 11:18:26 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-08-19 15:25:51 +0200 |
| commit | fa6963b2481beff8b11f76006fbb63fdbbf2d2d7 (patch) | |
| tree | 001ec6fcaf0524ba07d950c1d983722513fff73a /tools/perf/builtin-annotate.c | |
| parent | b395cd8a74b4a8d943dd4b5585e676f62f7350b3 (diff) | |
| download | linux-fa6963b2481beff8b11f76006fbb63fdbbf2d2d7.tar.gz linux-fa6963b2481beff8b11f76006fbb63fdbbf2d2d7.tar.bz2 linux-fa6963b2481beff8b11f76006fbb63fdbbf2d2d7.zip | |
perf tools: Check perf.data owner
Add an owner check to opening perf.data files and a switch to
silence it.
Because perf-report/perf-annotate are binary parsers reading
another users' perf.data file could be a security risk if the
file were explicitly engineered to trigger bugs in the parser
(we hope of course there are non such bugs, but you never
know).
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <20090819092023.896648538@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/builtin-annotate.c')
| -rw-r--r-- | tools/perf/builtin-annotate.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c index 343e7b14bf01..5e17de984dc8 100644 --- a/tools/perf/builtin-annotate.c +++ b/tools/perf/builtin-annotate.c @@ -31,6 +31,7 @@ static char *vmlinux = "vmlinux"; static char default_sort_order[] = "comm,symbol"; static char *sort_order = default_sort_order; +static int force; static int input; static int show_mask = SHOW_KERNEL | SHOW_USER | SHOW_HV; @@ -1334,6 +1335,11 @@ static int __cmd_annotate(void) exit(-1); } + if (!force && (stat.st_uid != geteuid())) { + fprintf(stderr, "file: %s not owned by current user\n", input_name); + exit(-1); + } + if (!stat.st_size) { fprintf(stderr, "zero-sized file, nothing to do!\n"); exit(0); @@ -1439,6 +1445,7 @@ static const struct option options[] = { "input file name"), OPT_STRING('s', "symbol", &sym_hist_filter, "symbol", "symbol to annotate"), + OPT_BOOLEAN('f', "force", &force, "don't complain, do it"), OPT_BOOLEAN('v', "verbose", &verbose, "be more verbose (show symbol address, etc)"), OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace, |