Date: Wed, 20 Nov 2013 21:16:53 +0000 (UTC) From: John-Mark Gurney <jmg@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r258402 - head/sys/ufs/ffs Message-ID: <201311202116.rAKLGrdB073402@svn.freebsd.org>
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Author: jmg Date: Wed Nov 20 21:16:53 2013 New Revision: 258402 URL: http://svnweb.freebsd.org/changeset/base/258402 Log: fix a use after free, jsegdep_merge will free wk, avoid the next check... CID: 1006098 Sponsored by: Imaginary Forces Reviewed by: mckusick MFC after: 1 week Modified: head/sys/ufs/ffs/ffs_softdep.c Modified: head/sys/ufs/ffs/ffs_softdep.c ============================================================================== --- head/sys/ufs/ffs/ffs_softdep.c Wed Nov 20 21:05:33 2013 (r258401) +++ head/sys/ufs/ffs/ffs_softdep.c Wed Nov 20 21:16:53 2013 (r258402) @@ -1096,7 +1096,7 @@ jwork_move(dst, src) LIST_FOREACH_SAFE(wk, dst, wk_list, wkn) { if (wk->wk_type == D_JSEGDEP) jsegdep = jsegdep_merge(WK_JSEGDEP(wk), jsegdep); - if (wk->wk_type == D_FREEDEP) + else if (wk->wk_type == D_FREEDEP) freedep = freedep_merge(WK_FREEDEP(wk), freedep); }
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