Date: Mon, 11 May 2009 19:58:03 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r192001 - head/sys/kern Message-ID: <200905111958.n4BJw34q000744@svn.freebsd.org>
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Author: kib Date: Mon May 11 19:58:03 2009 New Revision: 192001 URL: http://svn.freebsd.org/changeset/base/192001 Log: Prevent overflow of uio_resid. Noted by: jhb MFC after: 3 days Modified: head/sys/kern/vfs_syscalls.c Modified: head/sys/kern/vfs_syscalls.c ============================================================================== --- head/sys/kern/vfs_syscalls.c Mon May 11 19:37:05 2009 (r192000) +++ head/sys/kern/vfs_syscalls.c Mon May 11 19:58:03 2009 (r192001) @@ -2596,6 +2596,9 @@ kern_readlinkat(struct thread *td, int f struct nameidata nd; int vfslocked; + if (count > INT_MAX) + return (EINVAL); + NDINIT_AT(&nd, LOOKUP, NOFOLLOW | LOCKSHARED | LOCKLEAF | MPSAFE | AUDITVNODE1, pathseg, path, fd, td);
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