Date: Sat, 5 Oct 2019 14:56:28 +0000 (UTC) From: Mark Johnston <markj@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r353124 - stable/11/sys/kern Message-ID: <201910051456.x95EuSZr073019@repo.freebsd.org>
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Author: markj Date: Sat Oct 5 14:56:27 2019 New Revision: 353124 URL: https://svnweb.freebsd.org/changeset/base/353124 Log: MFC r353010: Disallow fcntl(F_READAHEAD) when the vnode is not a regular file. Modified: stable/11/sys/kern/kern_descrip.c Directory Properties: stable/11/ (props changed) Modified: stable/11/sys/kern/kern_descrip.c ============================================================================== --- stable/11/sys/kern/kern_descrip.c Sat Oct 5 13:28:01 2019 (r353123) +++ stable/11/sys/kern/kern_descrip.c Sat Oct 5 14:56:27 2019 (r353124) @@ -765,6 +765,12 @@ kern_fcntl(struct thread *td, int fd, int cmd, intptr_ break; } vp = fp->f_vnode; + if (vp->v_type != VREG) { + fdrop(fp, td); + error = ENOTTY; + break; + } + /* * Exclusive lock synchronizes against f_seqcount reads and * writes in sequential_heuristic().
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