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Message-ID: <20091019144928.14221.73541.stgit@pc1117.cambridge.arm.com> Date: Mon, 19 Oct 2009 15:49:29 +0100 From: Catalin Marinas <catalin.marinas@....com> To: linux-kernel@...r.kernel.org Cc: Rusty Russell <rusty@...tcorp.com.au>, Zdenek Kabelac <zdenek.kabelac@...il.com> Subject: [PATCH 2/4] 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@...il.com> Cc: Rusty Russell <rusty@...tcorp.com.au> Signed-off-by: Catalin Marinas <catalin.marinas@....com> --- kernel/module.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) diff --git a/kernel/module.c b/kernel/module.c index 1eb9520..dd29ba4 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 */ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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