Date: Mon, 18 Mar 2019 12:15:58 +0000 (UTC) From: Fedor Uporov <fsu@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org Subject: svn commit: r345267 - stable/12/sys/fs/ext2fs Message-ID: <201903181215.x2ICFwOL092497@repo.freebsd.org>
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Author: fsu Date: Mon Mar 18 12:15:58 2019 New Revision: 345267 URL: https://svnweb.freebsd.org/changeset/base/345267 Log: MFC: r344755: Fix integer overflow possibility. Reported by: Christopher Krah, Thomas Barabosch, and Jan-Niclas Hilgert of Fraunhofer FKIE Reported as: FS-2-EXT2-1: Out-of-Bounds Write in nmount (ext2_vget) Reviewed by: pfg Differential Revision: https://reviews.freebsd.org/D19326 Modified: stable/12/sys/fs/ext2fs/ext2_vfsops.c Modified: stable/12/sys/fs/ext2fs/ext2_vfsops.c ============================================================================== --- stable/12/sys/fs/ext2fs/ext2_vfsops.c Mon Mar 18 12:09:10 2019 (r345266) +++ stable/12/sys/fs/ext2fs/ext2_vfsops.c Mon Mar 18 12:15:58 2019 (r345267) @@ -1156,8 +1156,8 @@ ext2_vget(struct mount *mp, ino_t ino, int flags, stru struct buf *bp; struct vnode *vp; struct thread *td; - int i, error; - int used_blocks; + unsigned int i, used_blocks; + int error; td = curthread; error = vfs_hash_get(mp, ino, flags, td, vpp, NULL, NULL);
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