Date: Thu, 22 Sep 2016 18:50:52 -0700 From: Ngie Cooper <yaneurabeya@gmail.com> To: Mark Johnston <markj@freebsd.org> Cc: "src-committers@freebsd.org" <src-committers@freebsd.org>, "svn-src-all@freebsd.org" <svn-src-all@freebsd.org>, "svn-src-head@freebsd.org" <svn-src-head@freebsd.org> Subject: Re: svn commit: r306220 - head/sys/cddl/dev/systrace Message-ID: <CAGHfRMCoEhaCY5hVg2akV4RjV%2B_3jeYOCPvni%2BG1-tiVpLtnNQ@mail.gmail.com> In-Reply-To: <201609222322.u8MNMrxG046367@repo.freebsd.org> References: <201609222322.u8MNMrxG046367@repo.freebsd.org>
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On Thu, Sep 22, 2016 at 4:22 PM, Mark Johnston <markj@freebsd.org> wrote: > Author: markj > Date: Thu Sep 22 23:22:53 2016 > New Revision: 306220 > URL: https://svnweb.freebsd.org/changeset/base/306220 > > Log: > Re-check the systrace probe ID before calling dtrace_probe(). > > Otherwise there exists a narrow window during which a syscall probe can be > disabled and cause a concurrently-running thread to call dtrace_probe() > with an invalid probe ID. > > Reported by: ngie > MFC after: 1 week > Sponsored by: Dell EMC Isilon Thanks Mark :)!
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