Date: Sat, 13 Apr 2019 20:49:16 +0000 (UTC) From: "Pedro F. Giffuni" <pfg@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: r346189 - stable/11/sys/fs/ext2fs Message-ID: <201904132049.x3DKnG4H047939@repo.freebsd.org>
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Author: pfg Date: Sat Apr 13 20:49:16 2019 New Revision: 346189 URL: https://svnweb.freebsd.org/changeset/base/346189 Log: MFC r344755 (by fsu@) 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 MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D19326 Modified: stable/11/sys/fs/ext2fs/ext2_vfsops.c Directory Properties: stable/11/ (props changed) Modified: stable/11/sys/fs/ext2fs/ext2_vfsops.c ============================================================================== --- stable/11/sys/fs/ext2fs/ext2_vfsops.c Sat Apr 13 19:23:11 2019 (r346188) +++ stable/11/sys/fs/ext2fs/ext2_vfsops.c Sat Apr 13 20:49:16 2019 (r346189) @@ -940,8 +940,8 @@ 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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