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Date: Wed, 06 Jan 2010 03:20:35 +0300 From: Eugene Kapun <abacabadabacaba@...il.com> To: linux-kernel@...r.kernel.org Subject: Does tkill/tgkill leak info from kernel stack? As I can see, tkill and tgkill syscalls call do_tkill (kernel/signal.c:2336). This function doesn't clear info struct, so it would contain what was on kernel stack previously. And because SI_TKILL < 0, precautions in copy_siginfo_to_user (kernel/signal.c:2154) won't prevent this data from going to userspace. Is it a bug? -- 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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