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authorCatalin Marinas <catalin.marinas@arm.com>2009-10-28 09:33:10 -0400
committerCatalin Marinas <catalin.marinas@arm.com>2009-10-28 13:07:54 -0400
commita6f5aa1ea05686ad6e84593a00a04161e6dfb3a3 (patch)
tree4521e6f84911fc29d667314d8950be54342584d7
parentc017b4be3e84176cab10eca5e6c4faeb8cfc6f3e (diff)
kmemleak: Scan the _ftrace_events section in modules
This section contains pointers to allocated objects and not scanning it leads to false positives. Reported-by: Zdenek Kabelac <zdenek.kabelac@gmail.com> Acked-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
-rw-r--r--kernel/module.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/kernel/module.c b/kernel/module.c
index 1eb952097077..dd29ba43c34f 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -2380,6 +2380,12 @@ static noinline struct module *load_module(void __user *umod,
2380 "_ftrace_events", 2380 "_ftrace_events",
2381 sizeof(*mod->trace_events), 2381 sizeof(*mod->trace_events),
2382 &mod->num_trace_events); 2382 &mod->num_trace_events);
2383 /*
2384 * This section contains pointers to allocated objects in the trace
2385 * code and not scanning it leads to false positives.
2386 */
2387 kmemleak_scan_area(mod->trace_events, sizeof(*mod->trace_events) *
2388 mod->num_trace_events, GFP_KERNEL);
2383#endif 2389#endif
2384#ifdef CONFIG_FTRACE_MCOUNT_RECORD 2390#ifdef CONFIG_FTRACE_MCOUNT_RECORD
2385 /* sechdrs[0].sh_size is always zero */ 2391 /* sechdrs[0].sh_size is always zero */