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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 4.4 44/73] crypto: hash - Fix page length clamping in hash walk
Date: Mon, 16 May 2016 18:15:14 -0700	[thread overview]
Message-ID: <20160517011453.880426821@linuxfoundation.org> (raw)
In-Reply-To: <20160517011451.827433776@linuxfoundation.org>

4.4-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
@@ -69,8 +69,9 @@ 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)

  parent reply	other threads:[~2016-05-17  1:49 UTC|newest]

Thread overview: 67+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-05-17  1:14 [PATCH 4.4 00/73] 4.4.11-stable review Greg Kroah-Hartman
2016-05-17  1:14 ` [PATCH 4.4 01/73] decnet: Do not build routes to devices without decnet private data Greg Kroah-Hartman
2016-05-17  1:14 ` [PATCH 4.4 02/73] route: do not cache fib route info on local routes with oif Greg Kroah-Hartman
2016-05-17  1:14 ` [PATCH 4.4 03/73] packet: fix heap info leak in PACKET_DIAG_MCLIST sock_diag interface Greg Kroah-Hartman
2016-05-17  1:14 ` [PATCH 4.4 04/73] net: sched: do not requeue a NULL skb Greg Kroah-Hartman
2016-05-17  1:14 ` [PATCH 4.4 05/73] bpf/verifier: reject invalid LD_ABS | BPF_DW instruction Greg Kroah-Hartman
2016-05-17  1:14 ` [PATCH 4.4 08/73] net: use skb_postpush_rcsum instead of own implementations Greg Kroah-Hartman
2016-05-17  1:14 ` [PATCH 4.4 09/73] vlan: pull on __vlan_insert_tag error path and fix csum correction Greg Kroah-Hartman
2016-05-17  1:14 ` [PATCH 4.4 10/73] atl2: Disable unimplemented scatter/gather feature Greg Kroah-Hartman
2016-05-17  1:14 ` [PATCH 4.4 11/73] openvswitch: use flow protocol when recalculating ipv6 checksums Greg Kroah-Hartman
2016-05-17  1:14 ` [PATCH 4.4 12/73] net/mlx5e: Devices mtu field is u16 and not int Greg Kroah-Hartman
2016-05-17  1:14 ` [PATCH 4.4 13/73] net/mlx5e: Fix minimum MTU Greg Kroah-Hartman
2016-05-17  1:14 ` [PATCH 4.4 14/73] ipv4/fib: dont warn when primary address is missing if in_dev is dead Greg Kroah-Hartman
2016-05-17  1:14 ` [PATCH 4.4 15/73] net/mlx4_en: fix spurious timestamping callbacks Greg Kroah-Hartman
2016-05-17  1:14 ` [PATCH 4.4 16/73] bpf: fix double-fdput in replace_map_fd_with_map_ptr() Greg Kroah-Hartman
2016-05-17  1:14 ` [PATCH 4.4 17/73] bpf: fix refcnt overflow Greg Kroah-Hartman
2016-05-17  1:14 ` [PATCH 4.4 18/73] bpf: fix check_map_func_compatibility logic Greg Kroah-Hartman
2016-05-17  1:14 ` [PATCH 4.4 19/73] samples/bpf: fix trace_output example Greg Kroah-Hartman
2016-05-17  1:14 ` [PATCH 4.4 20/73] net: Implement net_dbg_ratelimited() for CONFIG_DYNAMIC_DEBUG case Greg Kroah-Hartman
2016-05-17  1:14 ` [PATCH 4.4 21/73] gre: do not pull header in ICMP error processing Greg Kroah-Hartman
2016-05-17  1:14 ` [PATCH 4.4 22/73] net_sched: introduce qdisc_replace() helper Greg Kroah-Hartman
2016-05-17  1:14 ` [PATCH 4.4 23/73] net_sched: update hierarchical backlog too Greg Kroah-Hartman
2016-05-17  1:14 ` [PATCH 4.4 24/73] sch_htb: update backlog as well Greg Kroah-Hartman
2016-05-17  1:14 ` [PATCH 4.4 25/73] sch_dsmark: " Greg Kroah-Hartman
2016-05-17  1:14 ` [PATCH 4.4 26/73] netem: Segment GSO packets on enqueue Greg Kroah-Hartman
2016-05-17  1:15 ` [PATCH 4.4 30/73] net/mlx4_en: Fix endianness bug in IPV6 csum calculation Greg Kroah-Hartman
2016-05-17  1:15 ` [PATCH 4.4 31/73] VSOCK: do not disconnect socket when peer has shutdown SEND only Greg Kroah-Hartman
2016-05-17  1:15 ` [PATCH 4.4 32/73] net: bridge: fix old ioctl unlocked net device walk Greg Kroah-Hartman
2016-05-17  1:15 ` [PATCH 4.4 35/73] net: fix a kernel infoleak in x25 module Greg Kroah-Hartman
2016-05-17  1:15 ` [PATCH 4.4 36/73] net: thunderx: avoid exposing kernel stack Greg Kroah-Hartman
2016-05-17  1:15 ` [PATCH 4.4 37/73] tcp: refresh skb timestamp at retransmit time Greg Kroah-Hartman
2016-05-17  1:15 ` [PATCH 4.4 38/73] net/route: enforce hoplimit max value Greg Kroah-Hartman
2016-05-17  1:15 ` [PATCH 4.4 39/73] ocfs2: revert using ocfs2_acl_chmod to avoid inode cluster lock hang Greg Kroah-Hartman
2016-05-17  1:15 ` [PATCH 4.4 40/73] ocfs2: fix posix_acl_create deadlock Greg Kroah-Hartman
2016-05-17  1:15 ` [PATCH 4.4 41/73] zsmalloc: fix zs_can_compact() integer overflow Greg Kroah-Hartman
2016-05-17  1:15 ` [PATCH 4.4 42/73] s390/mm: fix asce_bits handling with dynamic pagetable levels Greg Kroah-Hartman
2016-05-17  1:15 ` [PATCH 4.4 43/73] crypto: qat - fix invalid pf2vf_resp_wq logic Greg Kroah-Hartman
2016-05-17  1:15 ` Greg Kroah-Hartman [this message]
2016-05-17  1:15 ` [PATCH 4.4 45/73] crypto: testmgr - Use kmalloc memory for RSA input Greg Kroah-Hartman
2016-05-17  1:15 ` [PATCH 4.4 46/73] ALSA: usb-audio: Quirk for yet another Phoenix Audio devices (v2) Greg Kroah-Hartman
2016-05-17  1:15 ` [PATCH 4.4 47/73] ALSA: usb-audio: Yet another Phoneix Audio device quirk Greg Kroah-Hartman
2016-05-17  1:15 ` [PATCH 4.4 48/73] ALSA: hda - Fix subwoofer pin on ASUS N751 and N551 Greg Kroah-Hartman
2016-05-17  1:15 ` [PATCH 4.4 49/73] ALSA: hda - Fix white noise on Asus UX501VW headset Greg Kroah-Hartman
2016-05-17  1:15 ` [PATCH 4.4 50/73] ALSA: hda - Fix broken reconfig Greg Kroah-Hartman
2016-05-17  1:15 ` [PATCH 4.4 51/73] spi: pxa2xx: Do not detect number of enabled chip selects on Intel SPT Greg Kroah-Hartman
2016-05-17  1:15 ` [PATCH 4.4 52/73] spi: spi-ti-qspi: Fix FLEN and WLEN settings if bits_per_word is overridden Greg Kroah-Hartman
2016-05-17  1:15 ` [PATCH 4.4 53/73] spi: spi-ti-qspi: Handle truncated frames properly Greg Kroah-Hartman
2016-05-17  1:15 ` [PATCH 4.4 54/73] pinctrl: at91-pio4: fix pull-up/down logic Greg Kroah-Hartman
2016-05-17  1:15 ` [PATCH 4.4 55/73] regmap: spmi: Fix regmap_spmi_ext_read in multi-byte case Greg Kroah-Hartman
2016-05-17  1:15 ` [PATCH 4.4 56/73] perf/core: Disable the event on a truncated AUX record Greg Kroah-Hartman
2016-05-17  1:15 ` [PATCH 4.4 57/73] vfs: add vfs_select_inode() helper Greg Kroah-Hartman
2016-05-17  1:15 ` [PATCH 4.4 58/73] vfs: rename: check backing inode being equal Greg Kroah-Hartman
2016-05-17  1:15 ` [PATCH 4.4 59/73] ARM: dts: at91: sam9x5: Fix the memory range assigned to the PMC Greg Kroah-Hartman
2016-05-17  1:15 ` [PATCH 4.4 61/73] regulator: s2mps11: Fix invalid selector mask and voltages for buck9 Greg Kroah-Hartman
2016-05-17  1:15 ` [PATCH 4.4 62/73] regulator: axp20x: Fix axp22x ldo_io voltage ranges Greg Kroah-Hartman
2016-05-17  1:15 ` [PATCH 4.4 63/73] atomic_open(): fix the handling of create_error Greg Kroah-Hartman
2016-05-17  1:15 ` [PATCH 4.4 64/73] qla1280: Dont allocate 512kb of host tags Greg Kroah-Hartman
2016-05-17  1:15 ` [PATCH 4.4 65/73] tools lib traceevent: Do not reassign parg after collapse_tree() Greg Kroah-Hartman
2016-05-17  1:15 ` [PATCH 4.4 66/73] get_rock_ridge_filename(): handle malformed NM entries Greg Kroah-Hartman
2016-05-17  1:15 ` [PATCH 4.4 67/73] Input: max8997-haptic - fix NULL pointer dereference Greg Kroah-Hartman
2016-05-17  1:15 ` [PATCH 4.4 68/73] Revert "[media] videobuf2-v4l2: Verify planes array in buffer dequeueing" Greg Kroah-Hartman
2016-05-17  1:15 ` [PATCH 4.4 69/73] drm/radeon: fix PLL sharing on DCE6.1 (v2) Greg Kroah-Hartman
2016-05-17  1:15 ` [PATCH 4.4 70/73] drm/i915: Bail out of pipe config compute loop on LPT Greg Kroah-Hartman
2016-05-17  1:15 ` [PATCH 4.4 72/73] drm/radeon: fix DP link training issue with second 4K monitor Greg Kroah-Hartman
2016-05-17  1:15 ` [PATCH 4.4 73/73] nf_conntrack: avoid kernel pointer value leak in slab name Greg Kroah-Hartman
2016-05-17 17:27 ` [PATCH 4.4 00/73] 4.4.11-stable review Guenter Roeck
2016-05-17 17:28 ` Shuah Khan

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