From 028df76726c5637c6f70a064d94452808ec74f9e Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Wed, 1 Aug 2012 14:47:57 +0200 Subject: perf symbols: Fix array sizes for binary types arrays Following commit introduced wrong array boundaries, that could lead to SIGSEGV. perf symbols: Factor DSO symtab types to generic binary types commit 44f24cb3156a1e7d2b6bb501b7f6153aed08994c Author: Jiri Olsa Fixing to use proper array size. Reported-by: Markus Trippelsdorf Signed-off-by: Jiri Olsa Cc: Ingo Molnar Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Markus Trippelsdorf Link: http://lkml.kernel.org/r/1343825277-10517-1-git-send-email-jolsa@redhat.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/symbol.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'tools/perf/util/symbol.c') diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index fdad4eeeb429..fe86612afadc 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -64,7 +64,7 @@ static enum dso_binary_type binary_type_symtab[] = { DSO_BINARY_TYPE__NOT_FOUND, }; -#define DSO_BINARY_TYPE__SYMTAB_CNT sizeof(binary_type_symtab) +#define DSO_BINARY_TYPE__SYMTAB_CNT ARRAY_SIZE(binary_type_symtab) static enum dso_binary_type binary_type_data[] = { DSO_BINARY_TYPE__BUILD_ID_CACHE, @@ -72,7 +72,7 @@ static enum dso_binary_type binary_type_data[] = { DSO_BINARY_TYPE__NOT_FOUND, }; -#define DSO_BINARY_TYPE__DATA_CNT sizeof(binary_type_data) +#define DSO_BINARY_TYPE__DATA_CNT ARRAY_SIZE(binary_type_data) int dso__name_len(const struct dso *dso) { -- cgit v1.2.2 From 347ed9903a10179d1cf733d5d77072b283d89da3 Mon Sep 17 00:00:00 2001 From: David Ahern Date: Sun, 29 Jul 2012 20:54:35 -0600 Subject: perf kvm: Use strtol for walking guestmount directory Only want to process directories under the guestmnount directory that have a pid as a name (ie, all digits). Other entries in the guestmount directory should be ignored. There is already a check that requires the first character of each entry to be a digit, but atoi is used to convert the directory name to a pid. For example if guestmount contains a directory with the name 1foo, atoi converts it to a pid of 1 and a machine is created with a pid of 1. This is wrong; this directory really should be ignored. Use strtol to do that. Signed-off-by: David Ahern Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Jiri Olsa Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1343616875-6455-1-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/symbol.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) (limited to 'tools/perf/util/symbol.c') diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index fe86612afadc..8b63b678e127 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -2875,6 +2875,7 @@ int machines__create_guest_kernel_maps(struct rb_root *machines) int i, items = 0; char path[PATH_MAX]; pid_t pid; + char *endp; if (symbol_conf.default_guest_vmlinux_name || symbol_conf.default_guest_modules || @@ -2891,7 +2892,14 @@ int machines__create_guest_kernel_maps(struct rb_root *machines) /* Filter out . and .. */ continue; } - pid = atoi(namelist[i]->d_name); + pid = (pid_t)strtol(namelist[i]->d_name, &endp, 10); + if ((*endp != '\0') || + (endp == namelist[i]->d_name) || + (errno == ERANGE)) { + pr_debug("invalid directory (%s). Skipping.\n", + namelist[i]->d_name); + continue; + } sprintf(path, "%s/%s/proc/kallsyms", symbol_conf.guestmount, namelist[i]->d_name); -- cgit v1.2.2