From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org,
Steffen Klassert <steffen.klassert@secunet.com>,
Herbert Xu <herbert@gondor.apana.org.au>
Subject: [PATCH 3.14 01/17] crypto: hash - Fix page length clamping in hash walk
Date: Mon, 16 May 2016 18:14:02 -0700 [thread overview]
Message-ID: <20160517011347.005678638@linuxfoundation.org> (raw)
In-Reply-To: <20160517011346.950684325@linuxfoundation.org>
3.14-stable review patch. If anyone has any objections, please let me know.
------------------
From: Herbert Xu <herbert@gondor.apana.org.au>
commit 13f4bb78cf6a312bbdec367ba3da044b09bf0e29 upstream.
The crypto hash walk code is broken when supplied with an offset
greater than or equal to PAGE_SIZE. This patch fixes it by adjusting
walk->pg and walk->offset when this happens.
Reported-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
crypto/ahash.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/crypto/ahash.c
+++ b/crypto/ahash.c
@@ -64,8 +64,9 @@ static int hash_walk_new_entry(struct cr
struct scatterlist *sg;
sg = walk->sg;
- walk->pg = sg_page(sg);
walk->offset = sg->offset;
+ walk->pg = sg_page(walk->sg) + (walk->offset >> PAGE_SHIFT);
+ walk->offset = offset_in_page(walk->offset);
walk->entrylen = sg->length;
if (walk->entrylen > walk->total)
next prev parent reply other threads:[~2016-05-17 1:14 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-17 1:14 [PATCH 3.14 00/17] 3.14.70-stable review Greg Kroah-Hartman
2016-05-17 1:14 ` Greg Kroah-Hartman [this message]
2016-05-17 1:14 ` [PATCH 3.14 02/17] get_rock_ridge_filename(): handle malformed NM entries Greg Kroah-Hartman
2016-05-17 1:14 ` [PATCH 3.14 03/17] Input: max8997-haptic - fix NULL pointer dereference Greg Kroah-Hartman
2016-05-17 1:14 ` [PATCH 3.14 04/17] asmlinkage, pnp: Make variables used from assembler code visible Greg Kroah-Hartman
2016-05-17 1:14 ` [PATCH 3.14 05/17] drm/radeon: fix PLL sharing on DCE6.1 (v2) Greg Kroah-Hartman
2016-05-17 1:14 ` [PATCH 3.14 06/17] drm/i915: Bail out of pipe config compute loop on LPT Greg Kroah-Hartman
2016-05-17 1:14 ` [PATCH 3.14 07/17] ARM: OMAP3: Fix booting with thumb2 kernel Greg Kroah-Hartman
2016-05-17 1:14 ` [PATCH 3.14 08/17] decnet: Do not build routes to devices without decnet private data Greg Kroah-Hartman
2016-05-17 1:14 ` [PATCH 3.14 09/17] route: do not cache fib route info on local routes with oif Greg Kroah-Hartman
2016-05-17 1:14 ` [PATCH 3.14 10/17] packet: fix heap info leak in PACKET_DIAG_MCLIST sock_diag interface Greg Kroah-Hartman
2016-05-17 1:14 ` [PATCH 3.14 11/17] atl2: Disable unimplemented scatter/gather feature Greg Kroah-Hartman
2016-05-17 1:14 ` [PATCH 3.14 14/17] VSOCK: do not disconnect socket when peer has shutdown SEND only Greg Kroah-Hartman
2016-05-17 1:14 ` [PATCH 3.14 15/17] net: bridge: fix old ioctl unlocked net device walk Greg Kroah-Hartman
2016-05-17 1:14 ` [PATCH 3.14 16/17] net: fix a kernel infoleak in x25 module Greg Kroah-Hartman
2016-05-17 1:14 ` [PATCH 3.14 17/17] arm64: Make arch_randomize_brk avoid stack area Greg Kroah-Hartman
2016-05-17 9:49 ` Jon Medhurst (Tixy)
2016-05-17 20:31 ` Greg Kroah-Hartman
2016-05-17 4:06 ` [PATCH 3.14 00/17] 3.14.70-stable review Guenter Roeck
2016-05-17 20:32 ` Greg Kroah-Hartman
2016-05-17 17:25 ` Guenter Roeck
2016-05-17 20:32 ` Greg Kroah-Hartman
2016-05-17 17:27 ` Shuah Khan
2016-05-17 20:32 ` Greg Kroah-Hartman
[not found] ` <573c2d28.22c8c20a.9712f.4ddf@mx.google.com>
[not found] ` <m2k2iqzp1b.fsf@baylibre.com>
2016-05-19 3:53 ` Greg Kroah-Hartman
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