diff options
| author | Richard Weinberger <richard@nod.at> | 2017-05-17 10:36:46 +0200 |
|---|---|---|
| committer | Richard Weinberger <richard@nod.at> | 2017-07-14 22:49:06 +0200 |
| commit | 781f675e2d7ec120e8c0803f88d7bf00fe3f0703 (patch) | |
| tree | 4537fe855e6ceb9f6290467d3c2e3f5d0481069b /fs/ubifs/journal.c | |
| parent | 59a74990f85bb372c9117e40c6cd27693b6df670 (diff) | |
| download | linux-781f675e2d7ec120e8c0803f88d7bf00fe3f0703.tar.bz2 | |
ubifs: Fix unlink code wrt. double hash lookups
When removing an encrypted file with a long name and without having
the key we have to be able to locate and remove the directory entry
via a double hash. This corner case was simply forgotten.
Fixes: 528e3d178f25 ("ubifs: Add full hash lookup support")
Reported-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'fs/ubifs/journal.c')
| -rw-r--r-- | fs/ubifs/journal.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/fs/ubifs/journal.c b/fs/ubifs/journal.c index f3b620cbdda4..7aef413ea2a9 100644 --- a/fs/ubifs/journal.c +++ b/fs/ubifs/journal.c @@ -585,7 +585,10 @@ int ubifs_jnl_update(struct ubifs_info *c, const struct inode *dir, if (!xent) { dent->ch.node_type = UBIFS_DENT_NODE; - dent_key_init(c, &dent_key, dir->i_ino, nm); + if (nm->hash) + dent_key_init_hash(c, &dent_key, dir->i_ino, nm->hash); + else + dent_key_init(c, &dent_key, dir->i_ino, nm); } else { dent->ch.node_type = UBIFS_XENT_NODE; xent_key_init(c, &dent_key, dir->i_ino, nm); @@ -629,7 +632,10 @@ int ubifs_jnl_update(struct ubifs_info *c, const struct inode *dir, kfree(dent); if (deletion) { - err = ubifs_tnc_remove_nm(c, &dent_key, nm); + if (nm->hash) + err = ubifs_tnc_remove_dh(c, &dent_key, nm->minor_hash); + else + err = ubifs_tnc_remove_nm(c, &dent_key, nm); if (err) goto out_ro; err = ubifs_add_dirt(c, lnum, dlen); |