linux-kernel - [PATCH 4/6] ubifs: Add assert to dent_key

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Wed, 17 May 2017 10:36:47 +0200
From:   Richard Weinberger <richard@....at>
To:     linux-mtd@...ts.infradead.org
Cc:     linux-kernel@...r.kernel.org, Richard Weinberger <richard@....at>
Subject: [PATCH 4/6] ubifs: Add assert to dent_key_init()

...to make sure that we don't use it for double hashed lookups
instead of dent_key_init_hash().

Signed-off-by: Richard Weinberger <richard@....at>
---
 fs/ubifs/key.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/ubifs/key.h b/fs/ubifs/key.h
index 7547be512db2..b1f7c0caa3ac 100644
--- a/fs/ubifs/key.h
+++ b/fs/ubifs/key.h
@@ -162,6 +162,7 @@ static inline void dent_key_init(const struct ubifs_info *c,
 	uint32_t hash = c->key_hash(fname_name(nm), fname_len(nm));
 
 	ubifs_assert(!(hash & ~UBIFS_S_KEY_HASH_MASK));
+	ubifs_assert(!nm->hash && !nm->minor_hash);
 	key->u32[0] = inum;
 	key->u32[1] = hash | (UBIFS_DENT_KEY << UBIFS_S_KEY_HASH_BITS);
 }
-- 
2.12.0