From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Johan Hovold <johan@kernel.org>,
syzbot+cb035c75c03dbe34b796@syzkaller.appspotmail.com,
Jakub Kicinski <jakub.kicinski@netronome.com>,
Sasha Levin <sashal@kernel.org>,
netdev@vger.kernel.org
Subject: [PATCH AUTOSEL 4.14 16/25] NFC: pn533: fix use-after-free and memleaks
Date: Fri, 25 Oct 2019 09:57:04 -0400 [thread overview]
Message-ID: <20191025135715.25468-16-sashal@kernel.org> (raw)
In-Reply-To: <20191025135715.25468-1-sashal@kernel.org>
From: Johan Hovold <johan@kernel.org>
[ Upstream commit 6af3aa57a0984e061f61308fe181a9a12359fecc ]
The driver would fail to deregister and its class device and free
related resources on late probe errors.
Reported-by: syzbot+cb035c75c03dbe34b796@syzkaller.appspotmail.com
Fixes: 32ecc75ded72 ("NFC: pn533: change order operations in dev registation")
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/nfc/pn533/usb.c | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/nfc/pn533/usb.c b/drivers/nfc/pn533/usb.c
index 5d823e965883b..fcb57d64d97e6 100644
--- a/drivers/nfc/pn533/usb.c
+++ b/drivers/nfc/pn533/usb.c
@@ -559,18 +559,25 @@ static int pn533_usb_probe(struct usb_interface *interface,
rc = pn533_finalize_setup(priv);
if (rc)
- goto error;
+ goto err_deregister;
usb_set_intfdata(interface, phy);
return 0;
+err_deregister:
+ pn533_unregister_device(phy->priv);
error:
+ usb_kill_urb(phy->in_urb);
+ usb_kill_urb(phy->out_urb);
+ usb_kill_urb(phy->ack_urb);
+
usb_free_urb(phy->in_urb);
usb_free_urb(phy->out_urb);
usb_free_urb(phy->ack_urb);
usb_put_dev(phy->udev);
kfree(in_buf);
+ kfree(phy->ack_buffer);
return rc;
}
--
2.20.1
next prev parent reply other threads:[~2019-10-25 13:57 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-25 13:56 [PATCH AUTOSEL 4.14 01/25] PCI/ASPM: Do not initialize link state when aspm_disabled is set Sasha Levin
2019-10-25 13:56 ` [PATCH AUTOSEL 4.14 02/25] HID: i2c-hid: Add Odys Winbook 13 to descriptor override Sasha Levin
2019-10-25 13:56 ` [PATCH AUTOSEL 4.14 03/25] ACPI: video: Use vendor backlight on Sony VPCEH3U1E Sasha Levin
2019-10-25 13:56 ` [PATCH AUTOSEL 4.14 04/25] Fixed https://bugzilla.kernel.org/show_bug.cgi?id=202935 allow write on the same file Sasha Levin
2019-10-25 13:56 ` [PATCH AUTOSEL 4.14 05/25] nvme-pci: fix conflicting p2p resource adds Sasha Levin
2019-10-25 13:56 ` [PATCH AUTOSEL 4.14 06/25] scsi: qedf: Do not retry ELS request if qedf_alloc_cmd fails Sasha Levin
2019-10-25 13:56 ` [PATCH AUTOSEL 4.14 07/25] driver core: platform: Fix the usage of platform device name(pdev->name) Sasha Levin
2019-10-25 13:56 ` [PATCH AUTOSEL 4.14 08/25] powerpc/pseries/hvconsole: Fix stack overread via udbg Sasha Levin
2019-10-25 13:56 ` [PATCH AUTOSEL 4.14 09/25] scsi: RDMA/srp: Fix a sleep-in-invalid-context bug Sasha Levin
2019-10-25 13:56 ` [PATCH AUTOSEL 4.14 10/25] drm/msm: stop abusing dma_map/unmap for cache Sasha Levin
2019-10-25 13:56 ` [PATCH AUTOSEL 4.14 11/25] drm/msm: Use the correct dma_sync calls in msm_gem Sasha Levin
2019-10-25 13:57 ` [PATCH AUTOSEL 4.14 12/25] sch_netem: fix rcu splat in netem_enqueue() Sasha Levin
2019-10-25 13:57 ` [PATCH AUTOSEL 4.14 13/25] rxrpc: Fix call ref leak Sasha Levin
2019-10-25 13:57 ` [PATCH AUTOSEL 4.14 14/25] llc: fix sk_buff leak in llc_sap_state_process() Sasha Levin
2019-10-25 13:57 ` [PATCH AUTOSEL 4.14 15/25] llc: fix sk_buff leak in llc_conn_service() Sasha Levin
2019-10-25 13:57 ` Sasha Levin [this message]
2019-10-25 13:57 ` [PATCH AUTOSEL 4.14 17/25] bonding: fix potential NULL deref in bond_update_slave_arr Sasha Levin
2019-10-25 13:57 ` [PATCH AUTOSEL 4.14 18/25] net: usb: sr9800: fix uninitialized local variable Sasha Levin
2019-10-25 13:57 ` [PATCH AUTOSEL 4.14 19/25] jbd2: flush_descriptor(): Do not decrease buffer head's ref count Sasha Levin
2019-10-25 13:57 ` [PATCH AUTOSEL 4.14 20/25] ath9k: dynack: fix possible deadlock in ath_dynack_node_{de}init Sasha Levin
2019-10-25 13:57 ` [PATCH AUTOSEL 4.14 21/25] Btrfs: fix hang when loading existing inode cache off disk Sasha Levin
2019-10-25 13:57 ` [PATCH AUTOSEL 4.14 22/25] ubi: ubi_wl_get_peb: Increase the number of attempts while getting PEB Sasha Levin
2019-10-25 13:57 ` [PATCH AUTOSEL 4.14 23/25] RDMA/iwcm: Fix a lock inversion issue Sasha Levin
2019-10-25 13:57 ` [PATCH AUTOSEL 4.14 24/25] ipv6: Handle race in addrconf_dad_work Sasha Levin
2019-10-25 13:57 ` [PATCH AUTOSEL 4.14 25/25] bdi: Do not use freezable workqueue Sasha Levin
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