projects / GitHub / moto-9609 / android_kernel_motorola_exynos9610.git / commit
? search:
summary | shortlog | log | commit | commitdiff | tree
(parent: 0524975) | patch
VFS: move BUG_ON test for symlink nd->depth after current->link_count test
authorErez Zadok <ezk@fsl.cs.sunysb.edu>
Sat, 21 May 2011 05:19:59 +0000 (01:19 -0400)
committerLinus Torvalds <torvalds@linux-foundation.org>
Sat, 21 May 2011 07:12:16 +0000 (00:12 -0700)
commit1a4022f88d40e1255920b017556092ab926d7f66
treef4e54841dae0ecf1324a3002bc540f8b6ba441d5tree | snapshot (tar.gz zip)
parent052497553e5dedc04c43800820c1d5788201cc71commit | diff
VFS: move BUG_ON test for symlink nd->depth after current->link_count test

This solves a serious VFS-level bug in nested_symlink (which was
rewritten from do_follow_link), and follows the order of depth tests
that existed before.

The bug triggers a BUG_ON in fs/namei.c:1381, when running racer with
symlink and rename ops.

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Acked-by: Miklos Szeredi <mszeredi@suse.cz>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
fs/namei.c diff | blob | blame | history