From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Pavel Andrianov <andrianov@ispras.ru>,
Evgeny Novikov <novikov@ispras.ru>,
Felipe Balbi <balbi@kernel.org>, Sasha Levin <sashal@kernel.org>
Subject: [PATCH 4.4 20/64] usb: gadget: goku_udc: fix potential crashes in probe
Date: Tue, 17 Nov 2020 14:04:43 +0100 [thread overview]
Message-ID: <20201117122107.127030934@linuxfoundation.org> (raw)
In-Reply-To: <20201117122106.144800239@linuxfoundation.org>
From: Evgeny Novikov <novikov@ispras.ru>
[ Upstream commit 0d66e04875c5aae876cf3d4f4be7978fa2b00523 ]
goku_probe() goes to error label "err" and invokes goku_remove()
in case of failures of pci_enable_device(), pci_resource_start()
and ioremap(). goku_remove() gets a device from
pci_get_drvdata(pdev) and works with it without any checks, in
particular it dereferences a corresponding pointer. But
goku_probe() did not set this device yet. So, one can expect
various crashes. The patch moves setting the device just after
allocation of memory for it.
Found by Linux Driver Verification project (linuxtesting.org).
Reported-by: Pavel Andrianov <andrianov@ispras.ru>
Signed-off-by: Evgeny Novikov <novikov@ispras.ru>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/usb/gadget/udc/goku_udc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/gadget/udc/goku_udc.c b/drivers/usb/gadget/udc/goku_udc.c
index 1fdfec14a3ba1..5d4616061309e 100644
--- a/drivers/usb/gadget/udc/goku_udc.c
+++ b/drivers/usb/gadget/udc/goku_udc.c
@@ -1773,6 +1773,7 @@ static int goku_probe(struct pci_dev *pdev, const struct pci_device_id *id)
goto err;
}
+ pci_set_drvdata(pdev, dev);
spin_lock_init(&dev->lock);
dev->pdev = pdev;
dev->gadget.ops = &goku_ops;
@@ -1806,7 +1807,6 @@ static int goku_probe(struct pci_dev *pdev, const struct pci_device_id *id)
}
dev->regs = (struct goku_udc_regs __iomem *) base;
- pci_set_drvdata(pdev, dev);
INFO(dev, "%s\n", driver_desc);
INFO(dev, "version: " DRIVER_VERSION " %s\n", dmastr());
INFO(dev, "irq %d, pci mem %p\n", pdev->irq, base);
--
2.27.0
next prev parent reply other threads:[~2020-11-17 13:07 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-17 13:04 [PATCH 4.4 00/64] 4.4.244-rc1 review Greg Kroah-Hartman
2020-11-17 13:04 ` [PATCH 4.4 01/64] ring-buffer: Fix recursion protection transitions between interrupt context Greg Kroah-Hartman
2020-11-17 13:04 ` [PATCH 4.4 02/64] gfs2: Wake up when sd_glock_disposal becomes zero Greg Kroah-Hartman
2020-11-17 13:04 ` [PATCH 4.4 03/64] mm: mempolicy: fix potential pte_unmap_unlock pte error Greg Kroah-Hartman
2020-11-17 13:04 ` [PATCH 4.4 04/64] time: Prevent undefined behaviour in timespec64_to_ns() Greg Kroah-Hartman
2020-11-17 13:04 ` [PATCH 4.4 05/64] btrfs: reschedule when cloning lots of extents Greg Kroah-Hartman
2020-11-17 13:04 ` [PATCH 4.4 06/64] net: xfrm: fix a race condition during allocing spi Greg Kroah-Hartman
2020-11-17 13:04 ` [PATCH 4.4 07/64] perf tools: Add missing swap for ino_generation Greg Kroah-Hartman
2020-11-17 13:04 ` [PATCH 4.4 08/64] ALSA: hda: prevent undefined shift in snd_hdac_ext_bus_get_link() Greg Kroah-Hartman
2020-11-17 13:04 ` [PATCH 4.4 09/64] can: dev: can_get_echo_skb(): prevent call to kfree_skb() in hard IRQ context Greg Kroah-Hartman
2020-11-17 13:04 ` [PATCH 4.4 10/64] can: dev: __can_get_echo_skb(): fix real payload length return value for RTR frames Greg Kroah-Hartman
2020-11-17 13:04 ` [PATCH 4.4 11/64] can: can_create_echo_skb(): fix echo skb generation: always use skb_clone() Greg Kroah-Hartman
2020-11-17 13:04 ` [PATCH 4.4 12/64] can: peak_usb: add range checking in decode operations Greg Kroah-Hartman
2020-11-17 13:04 ` [PATCH 4.4 13/64] can: peak_usb: peak_usb_get_ts_time(): fix timestamp wrapping Greg Kroah-Hartman
2020-11-17 13:04 ` [PATCH 4.4 14/64] Btrfs: fix missing error return if writeback for extent buffer never started Greg Kroah-Hartman
2020-11-17 13:04 ` [PATCH 4.4 15/64] pinctrl: devicetree: Avoid taking direct reference to device name string Greg Kroah-Hartman
2020-11-17 13:04 ` [PATCH 4.4 16/64] i40e: Wrong truncation from u16 to u8 Greg Kroah-Hartman
2020-11-17 13:04 ` [PATCH 4.4 17/64] i40e: Fix of memory leak and integer truncation in i40e_virtchnl.c Greg Kroah-Hartman
2020-11-17 13:04 ` [PATCH 4.4 18/64] geneve: add transport ports in route lookup for geneve Greg Kroah-Hartman
2020-11-17 13:04 ` [PATCH 4.4 19/64] ath9k_htc: Use appropriate rs_datalen type Greg Kroah-Hartman
2020-11-17 13:04 ` Greg Kroah-Hartman [this message]
2020-11-17 13:04 ` [PATCH 4.4 21/64] gfs2: Free rd_bits later in gfs2_clear_rgrpd to fix use-after-free Greg Kroah-Hartman
2020-11-17 13:04 ` [PATCH 4.4 22/64] gfs2: check for live vs. read-only file system in gfs2_fitrim Greg Kroah-Hartman
2020-11-17 13:04 ` [PATCH 4.4 23/64] drm/amdgpu: perform srbm soft reset always on SDMA resume Greg Kroah-Hartman
2020-11-17 13:04 ` [PATCH 4.4 24/64] mac80211: fix use of skb payload instead of header Greg Kroah-Hartman
2020-11-17 13:04 ` [PATCH 4.4 25/64] mac80211: always wind down STA state Greg Kroah-Hartman
2020-11-17 13:04 ` [PATCH 4.4 26/64] cfg80211: regulatory: Fix inconsistent format argument Greg Kroah-Hartman
2020-11-17 13:04 ` [PATCH 4.4 27/64] iommu/amd: Increase interrupt remapping table limit to 512 entries Greg Kroah-Hartman
2020-11-17 13:04 ` [PATCH 4.4 28/64] xfs: fix a missing unlock on error in xfs_fs_map_blocks Greg Kroah-Hartman
2020-11-17 13:04 ` [PATCH 4.4 29/64] of/address: Fix of_node memory leak in of_dma_is_coherent Greg Kroah-Hartman
2020-11-17 13:04 ` [PATCH 4.4 30/64] cosa: Add missing kfree in error path of cosa_write Greg Kroah-Hartman
2020-11-17 13:04 ` [PATCH 4.4 31/64] perf: Fix get_recursion_context() Greg Kroah-Hartman
2020-11-17 13:04 ` [PATCH 4.4 32/64] ext4: correctly report "not supported" for {usr,grp}jquota when !CONFIG_QUOTA Greg Kroah-Hartman
2020-11-17 13:04 ` [PATCH 4.4 33/64] ext4: unlock xattr_sem properly in ext4_inline_data_truncate() Greg Kroah-Hartman
2020-11-17 13:04 ` [PATCH 4.4 34/64] usb: cdc-acm: Add DISABLE_ECHO for Renesas USB Download mode Greg Kroah-Hartman
2020-11-17 13:04 ` [PATCH 4.4 35/64] mei: protect mei_cl_mtu from null dereference Greg Kroah-Hartman
2020-11-17 13:04 ` [PATCH 4.4 36/64] ocfs2: initialize ip_next_orphan Greg Kroah-Hartman
2020-11-17 13:05 ` [PATCH 4.4 37/64] dont dump the threads that had been already exiting when zapped Greg Kroah-Hartman
2020-11-17 13:05 ` [PATCH 4.4 38/64] drm/gma500: Fix out-of-bounds access to struct drm_device.vblank[] Greg Kroah-Hartman
2020-11-17 13:05 ` [PATCH 4.4 39/64] pinctrl: amd: use higher precision for 512 RtcClk Greg Kroah-Hartman
2020-11-17 13:05 ` [PATCH 4.4 40/64] pinctrl: amd: fix incorrect way to disable debounce filter Greg Kroah-Hartman
2020-11-17 13:05 ` [PATCH 4.4 41/64] swiotlb: fix "x86: Dont panic if can not alloc buffer for swiotlb" Greg Kroah-Hartman
2020-11-17 13:05 ` [PATCH 4.4 42/64] IPv6: Set SIT tunnel hard_header_len to zero Greg Kroah-Hartman
2020-11-17 13:05 ` [PATCH 4.4 43/64] net/af_iucv: fix null pointer dereference on shutdown Greg Kroah-Hartman
2020-11-17 13:05 ` [PATCH 4.4 44/64] net/x25: Fix null-ptr-deref in x25_connect Greg Kroah-Hartman
2020-11-17 13:05 ` [PATCH 4.4 45/64] net: Update window_clamp if SOCK_RCVBUF is set Greg Kroah-Hartman
2020-11-17 13:05 ` [PATCH 4.4 46/64] random32: make prandom_u32() output unpredictable Greg Kroah-Hartman
2020-11-17 13:05 ` [PATCH 4.4 47/64] x86/speculation: Allow IBPB to be conditionally enabled on CPUs with always-on STIBP Greg Kroah-Hartman
2020-11-17 13:05 ` [PATCH 4.4 48/64] xen/events: avoid removing an event channel while handling it Greg Kroah-Hartman
2020-11-17 13:05 ` [PATCH 4.4 49/64] xen/events: add a proper barrier to 2-level uevent unmasking Greg Kroah-Hartman
2020-11-17 13:05 ` [PATCH 4.4 50/64] xen/events: fix race in evtchn_fifo_unmask() Greg Kroah-Hartman
2020-11-17 13:05 ` [PATCH 4.4 51/64] xen/events: add a new "late EOI" evtchn framework Greg Kroah-Hartman
2020-11-17 13:05 ` [PATCH 4.4 52/64] xen/blkback: use lateeoi irq binding Greg Kroah-Hartman
2020-11-17 13:05 ` [PATCH 4.4 53/64] xen/netback: " Greg Kroah-Hartman
2020-11-17 13:05 ` [PATCH 4.4 54/64] xen/scsiback: " Greg Kroah-Hartman
2020-11-17 13:05 ` [PATCH 4.4 55/64] xen/pciback: " Greg Kroah-Hartman
2020-11-17 13:05 ` [PATCH 4.4 56/64] xen/events: switch user event channels to lateeoi model Greg Kroah-Hartman
2020-11-17 13:05 ` [PATCH 4.4 57/64] xen/events: use a common cpu hotplug hook for event channels Greg Kroah-Hartman
2020-11-17 13:05 ` [PATCH 4.4 58/64] xen/events: defer eoi in case of excessive number of events Greg Kroah-Hartman
2020-11-17 13:05 ` [PATCH 4.4 59/64] xen/events: block rogue events for some time Greg Kroah-Hartman
2020-11-17 13:05 ` [PATCH 4.4 60/64] perf/core: Fix race in the perf_mmap_close() function Greg Kroah-Hartman
2020-11-17 13:05 ` [PATCH 4.4 61/64] Revert "kernel/reboot.c: convert simple_strtoul to kstrtoint" Greg Kroah-Hartman
2020-11-17 13:05 ` [PATCH 4.4 62/64] reboot: fix overflow parsing reboot cpu number Greg Kroah-Hartman
2020-11-17 13:05 ` [PATCH 4.4 63/64] ext4: fix leaking sysfs kobject after failed mount Greg Kroah-Hartman
2020-11-17 13:05 ` [PATCH 4.4 64/64] Convert trailing spaces and periods in path components Greg Kroah-Hartman
2020-11-17 18:27 ` [PATCH 4.4 00/64] 4.4.244-rc1 review Pavel Machek
2020-11-18 11:25 ` Naresh Kamboju
2020-11-18 15:22 ` Guenter Roeck
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