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| author | Catalin Marinas <catalin.marinas@arm.com> | 2009-10-28 14:33:10 +0100 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2009-10-28 18:07:54 +0100 |
| commit | a6f5aa1ea05686ad6e84593a00a04161e6dfb3a3 (patch) | |
| tree | 4521e6f84911fc29d667314d8950be54342584d7 | |
| parent | kmemleak: Simplify the kmemleak_scan_area() function prototype (diff) | |
| download | linux-a6f5aa1ea05686ad6e84593a00a04161e6dfb3a3.tar.xz linux-a6f5aa1ea05686ad6e84593a00a04161e6dfb3a3.zip | |
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, "_ftrace_events", sizeof(*mod->trace_events), &mod->num_trace_events); + /* + * This section contains pointers to allocated objects in the trace + * code and not scanning it leads to false positives. + */ + kmemleak_scan_area(mod->trace_events, sizeof(*mod->trace_events) * + mod->num_trace_events, GFP_KERNEL); #endif #ifdef CONFIG_FTRACE_MCOUNT_RECORD /* sechdrs[0].sh_size is always zero */ |