From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Dongsheng Yang <dongsheng.yang@easystack.cn>,
Ilya Dryomov <idryomov@gmail.com>,
Sasha Levin <sashal@kernel.org>,
ceph-devel@vger.kernel.org, linux-block@vger.kernel.org
Subject: [PATCH AUTOSEL 5.2 14/63] rbd: fix response length parameter for encoded strings
Date: Tue, 1 Oct 2019 12:40:36 -0400 [thread overview]
Message-ID: <20191001164125.15398-14-sashal@kernel.org> (raw)
In-Reply-To: <20191001164125.15398-1-sashal@kernel.org>
From: Dongsheng Yang <dongsheng.yang@easystack.cn>
[ Upstream commit 5435d2069503e2aa89c34a94154f4f2fa4a0c9c4 ]
rbd_dev_image_id() allocates space for length but passes a smaller
value to rbd_obj_method_sync(). rbd_dev_v2_object_prefix() doesn't
allocate space for length. Fix both to be consistent.
Signed-off-by: Dongsheng Yang <dongsheng.yang@easystack.cn>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/block/rbd.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index e5009a34f9c26..e78794bfcbbef 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -4696,17 +4696,20 @@ static int rbd_dev_v2_image_size(struct rbd_device *rbd_dev)
static int rbd_dev_v2_object_prefix(struct rbd_device *rbd_dev)
{
+ size_t size;
void *reply_buf;
int ret;
void *p;
- reply_buf = kzalloc(RBD_OBJ_PREFIX_LEN_MAX, GFP_KERNEL);
+ /* Response will be an encoded string, which includes a length */
+ size = sizeof(__le32) + RBD_OBJ_PREFIX_LEN_MAX;
+ reply_buf = kzalloc(size, GFP_KERNEL);
if (!reply_buf)
return -ENOMEM;
ret = rbd_obj_method_sync(rbd_dev, &rbd_dev->header_oid,
&rbd_dev->header_oloc, "get_object_prefix",
- NULL, 0, reply_buf, RBD_OBJ_PREFIX_LEN_MAX);
+ NULL, 0, reply_buf, size);
dout("%s: rbd_obj_method_sync returned %d\n", __func__, ret);
if (ret < 0)
goto out;
@@ -5676,7 +5679,6 @@ static int rbd_dev_image_id(struct rbd_device *rbd_dev)
dout("rbd id object name is %s\n", oid.name);
/* Response will be an encoded string, which includes a length */
-
size = sizeof (__le32) + RBD_IMAGE_ID_LEN_MAX;
response = kzalloc(size, GFP_NOIO);
if (!response) {
@@ -5688,7 +5690,7 @@ static int rbd_dev_image_id(struct rbd_device *rbd_dev)
ret = rbd_obj_method_sync(rbd_dev, &oid, &rbd_dev->header_oloc,
"get_id", NULL, 0,
- response, RBD_IMAGE_ID_LEN_MAX);
+ response, size);
dout("%s: rbd_obj_method_sync returned %d\n", __func__, ret);
if (ret == -ENOENT) {
image_id = kstrdup("", GFP_KERNEL);
--
2.20.1
next prev parent reply other threads:[~2019-10-01 16:57 UTC|newest]
Thread overview: 63+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-01 16:40 [PATCH AUTOSEL 5.2 01/63] drivers: thermal: qcom: tsens: Fix memory leak from qfprom read Sasha Levin
2019-10-01 16:40 ` [PATCH AUTOSEL 5.2 02/63] ima: always return negative code for error Sasha Levin
2019-10-01 16:40 ` [PATCH AUTOSEL 5.2 03/63] ima: fix freeing ongoing ahash_request Sasha Levin
2019-10-01 16:40 ` [PATCH AUTOSEL 5.2 04/63] fs: nfs: Fix possible null-pointer dereferences in encode_attrs() Sasha Levin
2019-10-01 16:40 ` [PATCH AUTOSEL 5.2 05/63] xprtrdma: Send Queue size grows after a reconnect Sasha Levin
2019-10-01 16:40 ` [PATCH AUTOSEL 5.2 06/63] 9p: Transport error uninitialized Sasha Levin
2019-10-01 16:40 ` [PATCH AUTOSEL 5.2 07/63] 9p: avoid attaching writeback_fid on mmap with type PRIVATE Sasha Levin
2019-10-01 16:40 ` [PATCH AUTOSEL 5.2 08/63] 9p/cache.c: Fix memory leak in v9fs_cache_session_get_cookie Sasha Levin
2019-10-01 16:40 ` [PATCH AUTOSEL 5.2 09/63] xen/pci: reserve MCFG areas earlier Sasha Levin
2019-10-01 16:40 ` [PATCH AUTOSEL 5.2 10/63] fuse: fix request limit Sasha Levin
2019-10-01 16:40 ` [PATCH AUTOSEL 5.2 11/63] ceph: fix directories inode i_blkbits initialization Sasha Levin
2019-10-01 16:40 ` [PATCH AUTOSEL 5.2 12/63] ceph: fetch cap_gen under spinlock in ceph_add_cap Sasha Levin
2019-10-01 16:40 ` [PATCH AUTOSEL 5.2 13/63] ceph: reconnect connection if session hang in opening state Sasha Levin
2019-10-01 16:40 ` Sasha Levin [this message]
2019-10-01 16:40 ` [PATCH AUTOSEL 5.2 15/63] SUNRPC: RPC level errors should always set task->tk_rpc_status Sasha Levin
2019-10-01 16:40 ` [PATCH AUTOSEL 5.2 16/63] watchdog: aspeed: Add support for AST2600 Sasha Levin
2019-10-01 16:40 ` [PATCH AUTOSEL 5.2 17/63] netfilter: nf_tables: allow lookups in dynamic sets Sasha Levin
2019-10-01 16:40 ` [PATCH AUTOSEL 5.2 18/63] drm/amdgpu: Fix KFD-related kernel oops on Hawaii Sasha Levin
2019-10-01 16:40 ` [PATCH AUTOSEL 5.2 19/63] drm/amdgpu: Check for valid number of registers to read Sasha Levin
2019-10-01 16:40 ` [PATCH AUTOSEL 5.2 20/63] pNFS: Ensure we do clear the return-on-close layout stateid on fatal errors Sasha Levin
2019-10-01 16:40 ` [PATCH AUTOSEL 5.2 21/63] SUNRPC: Don't try to parse incomplete RPC messages Sasha Levin
2019-10-01 16:40 ` [PATCH AUTOSEL 5.2 22/63] net/sched: act_sample: don't push mac header on ip6gre ingress Sasha Levin
2019-10-01 16:40 ` [PATCH AUTOSEL 5.2 23/63] pwm: stm32-lp: Add check in case requested period cannot be achieved Sasha Levin
2019-10-01 16:40 ` [PATCH AUTOSEL 5.2 24/63] cdc_ncm: fix divide-by-zero caused by invalid wMaxPacketSize Sasha Levin
2019-10-01 16:40 ` [PATCH AUTOSEL 5.2 25/63] usbnet: ignore endpoints with " Sasha Levin
2019-10-01 16:40 ` [PATCH AUTOSEL 5.2 26/63] net/phy: fix DP83865 10 Mbps HDX loopback disable function Sasha Levin
2019-10-01 16:40 ` [PATCH AUTOSEL 5.2 27/63] net_sched: add max len check for TCA_KIND Sasha Levin
2019-10-01 16:40 ` [PATCH AUTOSEL 5.2 28/63] x86/purgatory: Disable the stackleak GCC plugin for the purgatory Sasha Levin
2019-10-01 16:40 ` [PATCH AUTOSEL 5.2 29/63] ntb: point to right memory window index Sasha Levin
2019-10-01 16:40 ` [PATCH AUTOSEL 5.2 30/63] thermal: Fix use-after-free when unregistering thermal zone device Sasha Levin
2019-10-01 16:40 ` [PATCH AUTOSEL 5.2 31/63] thermal_hwmon: Sanitize thermal_zone type Sasha Levin
2019-10-01 16:40 ` [PATCH AUTOSEL 5.2 32/63] iommu/amd: Fix downgrading default page-sizes in alloc_pte() Sasha Levin
2019-10-01 16:40 ` [PATCH AUTOSEL 5.2 33/63] libnvdimm/region: Initialize bad block for volatile namespaces Sasha Levin
2019-10-01 16:40 ` [PATCH AUTOSEL 5.2 34/63] net/mlx5e: Fix traffic duplication in ethtool steering Sasha Levin
2019-10-01 16:40 ` [PATCH AUTOSEL 5.2 35/63] KVM: hyperv: Fix Direct Synthetic timers assert an interrupt w/o lapic_in_kernel Sasha Levin
2019-10-01 16:40 ` [PATCH AUTOSEL 5.2 36/63] libnvdimm: Fix endian conversion issues Sasha Levin
2019-10-01 16:40 ` [PATCH AUTOSEL 5.2 37/63] fuse: fix memleak in cuse_channel_open Sasha Levin
2019-10-01 16:41 ` [PATCH AUTOSEL 5.2 38/63] arcnet: provide a buffer big enough to actually receive packets Sasha Levin
2019-10-01 16:41 ` [PATCH AUTOSEL 5.2 39/63] libnvdimm/nfit_test: Fix acpi_handle redefinition Sasha Levin
2019-10-01 16:41 ` [PATCH AUTOSEL 5.2 40/63] ppp: Fix memory leak in ppp_write Sasha Levin
2019-10-01 16:41 ` [PATCH AUTOSEL 5.2 41/63] sched/membarrier: Call sync_core only before usermode for same mm Sasha Levin
2019-10-01 16:41 ` [PATCH AUTOSEL 5.2 42/63] sched/membarrier: Fix private expedited registration check Sasha Levin
2019-10-01 16:41 ` [PATCH AUTOSEL 5.2 43/63] sched/core: Fix migration to invalid CPU in __set_cpus_allowed_ptr() Sasha Levin
2019-10-01 16:41 ` [PATCH AUTOSEL 5.2 44/63] perf build: Add detection of java-11-openjdk-devel package Sasha Levin
2019-10-01 16:41 ` [PATCH AUTOSEL 5.2 45/63] include/trace/events/writeback.h: fix -Wstringop-truncation warnings Sasha Levin
2019-10-01 16:41 ` [PATCH AUTOSEL 5.2 46/63] kernel/elfcore.c: include proper prototypes Sasha Levin
2019-10-01 16:41 ` [PATCH AUTOSEL 5.2 47/63] kexec: bail out upon SIGKILL when allocating memory Sasha Levin
2019-10-01 16:41 ` [PATCH AUTOSEL 5.2 48/63] blk-mq: move lockdep_assert_held() into elevator_exit Sasha Levin
2019-10-01 16:41 ` [PATCH AUTOSEL 5.2 49/63] bpf: Fix bpf_event_output re-entry issue Sasha Levin
2019-10-01 16:41 ` [PATCH AUTOSEL 5.2 50/63] macsec: drop skb sk before calling gro_cells_receive Sasha Levin
2019-10-01 16:41 ` [PATCH AUTOSEL 5.2 51/63] i2c: qcom-geni: Disable DMA processing on the Lenovo Yoga C630 Sasha Levin
2019-10-01 16:41 ` [PATCH AUTOSEL 5.2 52/63] perf unwind: Fix libunwind build failure on i386 systems Sasha Levin
2019-10-01 16:41 ` [PATCH AUTOSEL 5.2 53/63] nfp: flower: fix memory leak in nfp_flower_spawn_vnic_reprs Sasha Levin
2019-10-01 16:41 ` [PATCH AUTOSEL 5.2 54/63] net: phy: micrel: add Asym Pause workaround for KSZ9021 Sasha Levin
2019-10-01 16:41 ` [PATCH AUTOSEL 5.2 55/63] mlxsw: spectrum_flower: Fail in case user specifies multiple mirror actions Sasha Levin
2019-10-01 16:41 ` [PATCH AUTOSEL 5.2 56/63] vrf: Do not attempt to create IPv6 mcast rule if IPv6 is disabled Sasha Levin
2019-10-01 16:41 ` [PATCH AUTOSEL 5.2 57/63] nfp: flower: prevent memory leak in nfp_flower_spawn_phy_reprs Sasha Levin
2019-10-01 16:41 ` [PATCH AUTOSEL 5.2 58/63] nfp: abm: fix memory leak in nfp_abm_u32_knode_replace Sasha Levin
2019-10-01 16:41 ` [PATCH AUTOSEL 5.2 59/63] fuse: fix deadlock with aio poll and fuse_iqueue::waitq.lock Sasha Levin
2019-10-01 16:41 ` [PATCH AUTOSEL 5.2 60/63] drm/radeon: Bail earlier when radeon.cik_/si_support=0 is passed Sasha Levin
2019-10-01 16:41 ` [PATCH AUTOSEL 5.2 61/63] usbnet: sanity checking of packet sizes and device mtu Sasha Levin
2019-10-01 16:41 ` [PATCH AUTOSEL 5.2 62/63] sch_netem: fix a divide by zero in tabledist() Sasha Levin
2019-10-01 16:41 ` [PATCH AUTOSEL 5.2 63/63] Btrfs: fix selftests failure due to uninitialized i_mode in test inodes Sasha Levin
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20191001164125.15398-14-sashal@kernel.org \
--to=sashal@kernel.org \
--cc=ceph-devel@vger.kernel.org \
--cc=dongsheng.yang@easystack.cn \
--cc=idryomov@gmail.com \
--cc=linux-block@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=stable@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox