diff options
author | Catalin Marinas <catalin.marinas@arm.com> | 2009-10-28 09:33:10 -0400 |
---|---|---|
committer | Catalin Marinas <catalin.marinas@arm.com> | 2009-10-28 13:07:54 -0400 |
commit | a6f5aa1ea05686ad6e84593a00a04161e6dfb3a3 (patch) | |
tree | 4521e6f84911fc29d667314d8950be54342584d7 | |
parent | c017b4be3e84176cab10eca5e6c4faeb8cfc6f3e (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.c | 6 |
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 */ |