[PATCH AUTOSEL 4.19 01/13] PCI: Add ACS quirk for Broadcom BCM5750x NICs

[PATCH AUTOSEL 4.19 01/13] PCI: Add ACS quirk for Broadcom BCM5750x NICs

[Sasha Levin]

From: Pavan Chebbi <pavan.chebbi@broadcom.com>

[ Upstream commit afd306a65cedb9589564bdb23a0c368abc4215fd ]

The Broadcom BCM5750x NICs may be multi-function devices.  They do not
advertise ACS capability. Peer-to-peer transactions are not possible
between the individual functions, so it is safe to treat them as fully
isolated.

Add an ACS quirk for these devices so the functions can be in independent
IOMMU groups and attached individually to userspace applications using
VFIO.

Link: https://lore.kernel.org/r/1654796507-28610-1-git-send-email-michael.chan@broadcom.com
Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pci/quirks.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 7cd38c9eaa02..f494e76faaa0 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -4799,6 +4799,9 @@ static const struct pci_dev_acs_enabled {
 	{ PCI_VENDOR_ID_AMPERE, 0xE00C, pci_quirk_xgene_acs },
 	/* Broadcom multi-function device */
 	{ PCI_VENDOR_ID_BROADCOM, 0x16D7, pci_quirk_mf_endpoint_acs },
+	{ PCI_VENDOR_ID_BROADCOM, 0x1750, pci_quirk_mf_endpoint_acs },
+	{ PCI_VENDOR_ID_BROADCOM, 0x1751, pci_quirk_mf_endpoint_acs },
+	{ PCI_VENDOR_ID_BROADCOM, 0x1752, pci_quirk_mf_endpoint_acs },
 	{ PCI_VENDOR_ID_BROADCOM, 0xD714, pci_quirk_brcm_acs },
 	{ 0 }
 };
-- 
2.35.1

[PATCH AUTOSEL 4.19 02/13] irqchip/tegra: Fix overflow implicit truncation warnings

[Sasha Levin]

From: Sai Prakash Ranjan <quic_saipraka@quicinc.com>

[ Upstream commit 443685992bda9bb4f8b17fc02c9f6c60e62b1461 ]

Fix -Woverflow warnings for tegra irqchip driver which is a result
of moving arm64 custom MMIO accessor macros to asm-generic function
implementations giving a bonus type-checking now and uncovering these
overflow warnings.

drivers/irqchip/irq-tegra.c: In function ‘tegra_ictlr_suspend’:
drivers/irqchip/irq-tegra.c:151:18: warning: large integer implicitly truncated to unsigned type [-Woverflow]
   writel_relaxed(~0ul, ictlr + ICTLR_COP_IER_CLR);
                  ^

Suggested-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Sai Prakash Ranjan <quic_saipraka@quicinc.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Cc: Marc Zyngier <maz@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/irqchip/irq-tegra.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/irqchip/irq-tegra.c b/drivers/irqchip/irq-tegra.c
index 0abc0cd1c32e..1b3048ecb600 100644
--- a/drivers/irqchip/irq-tegra.c
+++ b/drivers/irqchip/irq-tegra.c
@@ -157,10 +157,10 @@ static int tegra_ictlr_suspend(void)
 		lic->cop_iep[i] = readl_relaxed(ictlr + ICTLR_COP_IEP_CLASS);
 
 		/* Disable COP interrupts */
-		writel_relaxed(~0ul, ictlr + ICTLR_COP_IER_CLR);
+		writel_relaxed(GENMASK(31, 0), ictlr + ICTLR_COP_IER_CLR);
 
 		/* Disable CPU interrupts */
-		writel_relaxed(~0ul, ictlr + ICTLR_CPU_IER_CLR);
+		writel_relaxed(GENMASK(31, 0), ictlr + ICTLR_CPU_IER_CLR);
 
 		/* Enable the wakeup sources of ictlr */
 		writel_relaxed(lic->ictlr_wake_mask[i], ictlr + ICTLR_CPU_IER_SET);
@@ -181,12 +181,12 @@ static void tegra_ictlr_resume(void)
 
 		writel_relaxed(lic->cpu_iep[i],
 			       ictlr + ICTLR_CPU_IEP_CLASS);
-		writel_relaxed(~0ul, ictlr + ICTLR_CPU_IER_CLR);
+		writel_relaxed(GENMASK(31, 0), ictlr + ICTLR_CPU_IER_CLR);
 		writel_relaxed(lic->cpu_ier[i],
 			       ictlr + ICTLR_CPU_IER_SET);
 		writel_relaxed(lic->cop_iep[i],
 			       ictlr + ICTLR_COP_IEP_CLASS);
-		writel_relaxed(~0ul, ictlr + ICTLR_COP_IER_CLR);
+		writel_relaxed(GENMASK(31, 0), ictlr + ICTLR_COP_IER_CLR);
 		writel_relaxed(lic->cop_ier[i],
 			       ictlr + ICTLR_COP_IER_SET);
 	}
@@ -321,7 +321,7 @@ static int __init tegra_ictlr_init(struct device_node *node,
 		lic->base[i] = base;
 
 		/* Disable all interrupts */
-		writel_relaxed(~0UL, base + ICTLR_CPU_IER_CLR);
+		writel_relaxed(GENMASK(31, 0), base + ICTLR_CPU_IER_CLR);
 		/* All interrupts target IRQ */
 		writel_relaxed(0, base + ICTLR_CPU_IEP_CLASS);
 
-- 
2.35.1

[PATCH AUTOSEL 4.19 03/13] usb: host: ohci-ppc-of: Fix refcount leak bug

[Sasha Levin]

From: Liang He <windhl@126.com>

[ Upstream commit 40a959d7042bb7711e404ad2318b30e9f92c6b9b ]

In ohci_hcd_ppc_of_probe(), of_find_compatible_node() will return
a node pointer with refcount incremented. We should use of_node_put()
when it is not used anymore.

Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Liang He <windhl@126.com>
Link: https://lore.kernel.org/r/20220617034637.4003115-1-windhl@126.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/host/ohci-ppc-of.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/host/ohci-ppc-of.c b/drivers/usb/host/ohci-ppc-of.c
index 76a9b40b08f1..96c5c7655283 100644
--- a/drivers/usb/host/ohci-ppc-of.c
+++ b/drivers/usb/host/ohci-ppc-of.c
@@ -169,6 +169,7 @@ static int ohci_hcd_ppc_of_probe(struct platform_device *op)
 				release_mem_region(res.start, 0x4);
 		} else
 			pr_debug("%s: cannot get ehci offset from fdt\n", __FILE__);
+		of_node_put(np);
 	}
 
 	irq_dispose_mapping(irq);
-- 
2.35.1

[PATCH AUTOSEL 4.19 04/13] usb: renesas: Fix refcount leak bug

[Sasha Levin]

From: Liang He <windhl@126.com>

[ Upstream commit 9d6d5303c39b8bc182475b22f45504106a07f086 ]

In usbhs_rza1_hardware_init(), of_find_node_by_name() will return
a node pointer with refcount incremented. We should use of_node_put()
when it is not used anymore.

Signed-off-by: Liang He <windhl@126.com>
Link: https://lore.kernel.org/r/20220618023205.4056548-1-windhl@126.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/renesas_usbhs/rza.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/usb/renesas_usbhs/rza.c b/drivers/usb/renesas_usbhs/rza.c
index 5b287257ec11..04eeaf6a028a 100644
--- a/drivers/usb/renesas_usbhs/rza.c
+++ b/drivers/usb/renesas_usbhs/rza.c
@@ -23,6 +23,10 @@ static int usbhs_rza1_hardware_init(struct platform_device *pdev)
 	extal_clk = of_find_node_by_name(NULL, "extal");
 	of_property_read_u32(usb_x1_clk, "clock-frequency", &freq_usb);
 	of_property_read_u32(extal_clk, "clock-frequency", &freq_extal);
+
+	of_node_put(usb_x1_clk);
+	of_node_put(extal_clk);
+
 	if (freq_usb == 0) {
 		if (freq_extal == 12000000) {
 			/* Select 12MHz XTAL */
-- 
2.35.1

[PATCH AUTOSEL 4.19 05/13] vboxguest: Do not use devm for irq

[Sasha Levin]

From: Pascal Terjan <pterjan@google.com>

[ Upstream commit 6169525b76764acb81918aa387ac168fb9a55575 ]

When relying on devm it doesn't get freed early enough which causes the
following warning when unloading the module:

[249348.837181] remove_proc_entry: removing non-empty directory 'irq/20', leaking at least 'vboxguest'
[249348.837219] WARNING: CPU: 0 PID: 6708 at fs/proc/generic.c:715 remove_proc_entry+0x119/0x140

[249348.837379] Call Trace:
[249348.837385]  unregister_irq_proc+0xbd/0xe0
[249348.837392]  free_desc+0x23/0x60
[249348.837396]  irq_free_descs+0x4a/0x70
[249348.837401]  irq_domain_free_irqs+0x160/0x1a0
[249348.837452]  mp_unmap_irq+0x5c/0x60
[249348.837458]  acpi_unregister_gsi_ioapic+0x29/0x40
[249348.837463]  acpi_unregister_gsi+0x17/0x30
[249348.837467]  acpi_pci_irq_disable+0xbf/0xe0
[249348.837473]  pcibios_disable_device+0x20/0x30
[249348.837478]  pci_disable_device+0xef/0x120
[249348.837482]  vbg_pci_remove+0x6c/0x70 [vboxguest]

Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Pascal Terjan <pterjan@google.com>
Link: https://lore.kernel.org/r/20220612133744.4030602-1-pterjan@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/virt/vboxguest/vboxguest_linux.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/virt/vboxguest/vboxguest_linux.c b/drivers/virt/vboxguest/vboxguest_linux.c
index 94e055ee7ad6..aa65b20883ef 100644
--- a/drivers/virt/vboxguest/vboxguest_linux.c
+++ b/drivers/virt/vboxguest/vboxguest_linux.c
@@ -341,8 +341,8 @@ static int vbg_pci_probe(struct pci_dev *pci, const struct pci_device_id *id)
 		goto err_vbg_core_exit;
 	}
 
-	ret = devm_request_irq(dev, pci->irq, vbg_core_isr, IRQF_SHARED,
-			       DEVICE_NAME, gdev);
+	ret = request_irq(pci->irq, vbg_core_isr, IRQF_SHARED, DEVICE_NAME,
+			  gdev);
 	if (ret) {
 		vbg_err("vboxguest: Error requesting irq: %d\n", ret);
 		goto err_vbg_core_exit;
@@ -352,7 +352,7 @@ static int vbg_pci_probe(struct pci_dev *pci, const struct pci_device_id *id)
 	if (ret) {
 		vbg_err("vboxguest: Error misc_register %s failed: %d\n",
 			DEVICE_NAME, ret);
-		goto err_vbg_core_exit;
+		goto err_free_irq;
 	}
 
 	ret = misc_register(&gdev->misc_device_user);
@@ -388,6 +388,8 @@ static int vbg_pci_probe(struct pci_dev *pci, const struct pci_device_id *id)
 	misc_deregister(&gdev->misc_device_user);
 err_unregister_misc_device:
 	misc_deregister(&gdev->misc_device);
+err_free_irq:
+	free_irq(pci->irq, gdev);
 err_vbg_core_exit:
 	vbg_core_exit(gdev);
 err_disable_pcidev:
@@ -404,6 +406,7 @@ static void vbg_pci_remove(struct pci_dev *pci)
 	vbg_gdev = NULL;
 	mutex_unlock(&vbg_gdev_mutex);
 
+	free_irq(pci->irq, gdev);
 	device_remove_file(gdev->dev, &dev_attr_host_features);
 	device_remove_file(gdev->dev, &dev_attr_host_version);
 	misc_deregister(&gdev->misc_device_user);
-- 
2.35.1

[PATCH AUTOSEL 4.19 06/13] clk: qcom: ipq8074: dont disable gcc_sleep_clk_src

[Sasha Levin]

From: Robert Marko <robimarko@gmail.com>

[ Upstream commit 1bf7305e79aab095196131bdc87a97796e0e3fac ]

Once the usb sleep clocks are disabled, clock framework is trying to
disable the sleep clock source also.

However, it seems that it cannot be disabled and trying to do so produces:
[  245.436390] ------------[ cut here ]------------
[  245.441233] gcc_sleep_clk_src status stuck at 'on'
[  245.441254] WARNING: CPU: 2 PID: 223 at clk_branch_wait+0x130/0x140
[  245.450435] Modules linked in: xhci_plat_hcd xhci_hcd dwc3 dwc3_qcom leds_gpio
[  245.456601] CPU: 2 PID: 223 Comm: sh Not tainted 5.18.0-rc4 #215
[  245.463889] Hardware name: Xiaomi AX9000 (DT)
[  245.470050] pstate: 204000c5 (nzCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[  245.474307] pc : clk_branch_wait+0x130/0x140
[  245.481073] lr : clk_branch_wait+0x130/0x140
[  245.485588] sp : ffffffc009f2bad0
[  245.489838] x29: ffffffc009f2bad0 x28: ffffff8003e6c800 x27: 0000000000000000
[  245.493057] x26: 0000000000000000 x25: 0000000000000000 x24: ffffff800226ef20
[  245.500175] x23: ffffffc0089ff550 x22: 0000000000000000 x21: ffffffc008476ad0
[  245.507294] x20: 0000000000000000 x19: ffffffc00965ac70 x18: fffffffffffc51a7
[  245.514413] x17: 68702e3030303837 x16: 3a6d726f6674616c x15: ffffffc089f2b777
[  245.521531] x14: ffffffc0095c9d18 x13: 0000000000000129 x12: 0000000000000129
[  245.528649] x11: 00000000ffffffea x10: ffffffc009621d18 x9 : 0000000000000001
[  245.535767] x8 : 0000000000000001 x7 : 0000000000017fe8 x6 : 0000000000000001
[  245.542885] x5 : ffffff803fdca6d8 x4 : 0000000000000000 x3 : 0000000000000027
[  245.550002] x2 : 0000000000000027 x1 : 0000000000000023 x0 : 0000000000000026
[  245.557122] Call trace:
[  245.564229]  clk_branch_wait+0x130/0x140
[  245.566490]  clk_branch2_disable+0x2c/0x40
[  245.570656]  clk_core_disable+0x60/0xb0
[  245.574561]  clk_core_disable+0x68/0xb0
[  245.578293]  clk_disable+0x30/0x50
[  245.582113]  dwc3_qcom_remove+0x60/0xc0 [dwc3_qcom]
[  245.585588]  platform_remove+0x28/0x60
[  245.590361]  device_remove+0x4c/0x80
[  245.594179]  device_release_driver_internal+0x1dc/0x230
[  245.597914]  device_driver_detach+0x18/0x30
[  245.602861]  unbind_store+0xec/0x110
[  245.607027]  drv_attr_store+0x24/0x40
[  245.610847]  sysfs_kf_write+0x44/0x60
[  245.614405]  kernfs_fop_write_iter+0x128/0x1c0
[  245.618052]  new_sync_write+0xc0/0x130
[  245.622391]  vfs_write+0x1d4/0x2a0
[  245.626123]  ksys_write+0x58/0xe0
[  245.629508]  __arm64_sys_write+0x1c/0x30
[  245.632895]  invoke_syscall.constprop.0+0x5c/0x110
[  245.636890]  do_el0_svc+0xa0/0x150
[  245.641488]  el0_svc+0x18/0x60
[  245.644872]  el0t_64_sync_handler+0xa4/0x130
[  245.647914]  el0t_64_sync+0x174/0x178
[  245.652340] ---[ end trace 0000000000000000 ]---

So, add CLK_IS_CRITICAL flag to the clock so that the kernel won't try
to disable the sleep clock.

Signed-off-by: Robert Marko <robimarko@gmail.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220515210048.483898-10-robimarko@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/clk/qcom/gcc-ipq8074.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/clk/qcom/gcc-ipq8074.c b/drivers/clk/qcom/gcc-ipq8074.c
index 708c486a6e96..90b53356d38b 100644
--- a/drivers/clk/qcom/gcc-ipq8074.c
+++ b/drivers/clk/qcom/gcc-ipq8074.c
@@ -675,6 +675,7 @@ static struct clk_branch gcc_sleep_clk_src = {
 			},
 			.num_parents = 1,
 			.ops = &clk_branch2_ops,
+			.flags = CLK_IS_CRITICAL,
 		},
 	},
 };
-- 
2.35.1

[PATCH AUTOSEL 4.19 07/13] gadgetfs: ep_io - wait until IRQ finishes

[Sasha Levin]

From: Jozef Martiniak <jomajm@gmail.com>

[ Upstream commit 04cb742d4d8f30dc2e83b46ac317eec09191c68e ]

after usb_ep_queue() if wait_for_completion_interruptible() is
interrupted we need to wait until IRQ gets finished.

Otherwise complete() from epio_complete() can corrupt stack.

Signed-off-by: Jozef Martiniak <jomajm@gmail.com>
Link: https://lore.kernel.org/r/20220708070645.6130-1-jomajm@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/usb/gadget/legacy/inode.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/gadget/legacy/inode.c b/drivers/usb/gadget/legacy/inode.c
index 3ebcbd199a79..b0a2b8805f41 100644
--- a/drivers/usb/gadget/legacy/inode.c
+++ b/drivers/usb/gadget/legacy/inode.c
@@ -361,6 +361,7 @@ ep_io (struct ep_data *epdata, void *buf, unsigned len)
 				spin_unlock_irq (&epdata->dev->lock);
 
 				DBG (epdata->dev, "endpoint gone\n");
+				wait_for_completion(&done);
 				epdata->status = -ENODEV;
 			}
 		}
-- 
2.35.1

[PATCH AUTOSEL 4.19 08/13] cxl: Fix a memory leak in an error handling path

[Sasha Levin]

From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

[ Upstream commit 3a15b45b5454da862376b5d69a4967f5c6fa1368 ]

A bitmap_zalloc() must be balanced by a corresponding bitmap_free() in the
error handling path of afu_allocate_irqs().

Acked-by: Andrew Donnellan <ajd@linux.ibm.com>
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/ce5869418f5838187946eb6b11a52715a93ece3d.1657566849.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/misc/cxl/irq.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/misc/cxl/irq.c b/drivers/misc/cxl/irq.c
index ce08a9f22308..0dbe78383f8f 100644
--- a/drivers/misc/cxl/irq.c
+++ b/drivers/misc/cxl/irq.c
@@ -353,6 +353,7 @@ int afu_allocate_irqs(struct cxl_context *ctx, u32 count)
 
 out:
 	cxl_ops->release_irq_ranges(&ctx->irqs, ctx->afu->adapter);
+	bitmap_free(ctx->irq_bitmap);
 	afu_irq_name_free(ctx);
 	return -ENOMEM;
 }
-- 
2.35.1

[PATCH AUTOSEL 4.19 09/13] dmaengine: sprd: Cleanup in .remove() after pm_runtime_get_sync() failed

[Sasha Levin]

From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

[ Upstream commit 1e42f82cbec7b2cc4873751e7791e6611901c5fc ]

It's not allowed to quit remove early without cleaning up completely.
Otherwise this results in resource leaks that probably yield graver
problems later. Here for example some tasklets might survive the lifetime
of the sprd-dma device and access sdev which is freed after .remove()
returns.

As none of the device freeing requires an active device, just ignore the
return value of pm_runtime_get_sync().

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Baolin Wang <baolin.wang7@gmail.com>
Link: https://lore.kernel.org/r/20220721204054.323602-1-u.kleine-koenig@pengutronix.de
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/dma/sprd-dma.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/dma/sprd-dma.c b/drivers/dma/sprd-dma.c
index 0fadf6a08494..4ec9a924a338 100644
--- a/drivers/dma/sprd-dma.c
+++ b/drivers/dma/sprd-dma.c
@@ -987,11 +987,8 @@ static int sprd_dma_remove(struct platform_device *pdev)
 {
 	struct sprd_dma_dev *sdev = platform_get_drvdata(pdev);
 	struct sprd_dma_chn *c, *cn;
-	int ret;
 
-	ret = pm_runtime_get_sync(&pdev->dev);
-	if (ret < 0)
-		return ret;
+	pm_runtime_get_sync(&pdev->dev);
 
 	/* explicitly free the irq */
 	if (sdev->irq > 0)
-- 
2.35.1

[PATCH AUTOSEL 4.19 10/13] ARM: 9203/1: kconfig: fix MODULE_PLTS for KASAN with KASAN_VMALLOC

[Sasha Levin]

From: Lecopzer Chen <lecopzer.chen@mediatek.com>

[ Upstream commit 8fa7ea40bf56945c3ff5af00c0dca1fd9e26f129 ]

When we run out of module space address with ko insertion,
and with MODULE_PLTS, module would turn to try to find memory
from VMALLOC address space.

Unfortunately, with KASAN enabled, VMALLOC doesn't work without
KASAN_VMALLOC, thus select KASAN_VMALLOC by default.

8<--- cut here ---
 Unable to handle kernel paging request at virtual address bd300860
 [bd300860] *pgd=41cf1811, *pte=41cf26df, *ppte=41cf265f
 Internal error: Oops: 80f [#1] PREEMPT SMP ARM
 Modules linked in: hello(O+)
 CPU: 0 PID: 89 Comm: insmod Tainted: G           O      5.16.0-rc6+ #19
 Hardware name: Generic DT based system
 PC is at mmioset+0x30/0xa8
 LR is at 0x0
 pc : [<c077ed30>]    lr : [<00000000>]    psr: 20000013
 sp : c451fc18  ip : bd300860  fp : c451fc2c
 r10: f18042cc  r9 : f18042d0  r8 : 00000000
 r7 : 00000001  r6 : 00000003  r5 : 01312d00  r4 : f1804300
 r3 : 00000000  r2 : 00262560  r1 : 00000000  r0 : bd300860
 Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment none
 Control: 10c5387d  Table: 43e9406a  DAC: 00000051
 Register r0 information: non-paged memory
 Register r1 information: NULL pointer
 Register r2 information: non-paged memory
 Register r3 information: NULL pointer
 Register r4 information: 4887-page vmalloc region starting at 0xf1802000 allocated at load_module+0x14f4/0x32a8
 Register r5 information: non-paged memory
 Register r6 information: non-paged memory
 Register r7 information: non-paged memory
 Register r8 information: NULL pointer
 Register r9 information: 4887-page vmalloc region starting at 0xf1802000 allocated at load_module+0x14f4/0x32a8
 Register r10 information: 4887-page vmalloc region starting at 0xf1802000 allocated at load_module+0x14f4/0x32a8
 Register r11 information: non-slab/vmalloc memory
 Register r12 information: non-paged memory
 Process insmod (pid: 89, stack limit = 0xc451c000)
 Stack: (0xc451fc18 to 0xc4520000)
 fc00:                                                       f18041f0 c04803a4
 fc20: c451fc44 c451fc30 c048053c c0480358 f1804030 01312cff c451fc64 c451fc48
 fc40: c047f330 c0480500 f18040c0 c1b52ccc 00000001 c5be7700 c451fc74 c451fc68
 fc60: f1802098 c047f300 c451fcb4 c451fc78 c026106c f180208c c4880004 00000000
 fc80: c451fcb4 bf001000 c044ff48 c451fec0 f18040c0 00000000 c1b54cc4 00000000
 fca0: c451fdf0 f1804268 c451fe64 c451fcb8 c0264e88 c0260d48 ffff8000 00007fff
 fcc0: f18040c0 c025cd00 c451fd14 00000003 0157f008 f1804258 f180425c f1804174
 fce0: f1804154 f180424c f18041f0 f180414c f1804178 f18041c0 bf0025d4 188a3fa8
 fd00: 0000009e f1804170 f2b18000 c451ff10 c0d92e40 f180416c c451feec 00000001
 fd20: 00000000 c451fec8 c451fe20 c451fed0 f18040cc 00000000 f17ea000 c451fdc0
 fd40: 41b58ab3 c1387729 c0261c28 c047fb5c c451fe2c c451fd60 c0525308 c048033c
 fd60: 188a3fb4 c3ccb090 c451fe00 c3ccb080 00000000 00000000 00016920 00000000
 fd80: c02d0388 c047f55c c02d0388 00000000 c451fddc c451fda0 c02d0388 00000000
 fda0: 41b58ab3 c13a72d0 c0524ff0 c1705f48 c451fdfc c451fdc0 c02d0388 c047f55c
 fdc0: 00016920 00000000 00000003 c1bb2384 c451fdfc c3ccb080 c1bb2384 00000000
 fde0: 00000000 00000000 00000000 00000000 c451fe1c c451fe00 c04e9d70 c1705f48
 fe00: c1b54cc4 c1bbc71c c3ccb080 00000000 c3ccb080 00000000 00000003 c451fec0
 fe20: c451fe64 c451fe30 c0525918 c0524ffc c451feb0 c1705f48 00000000 c1b54cc4
 fe40: b78a3fd0 c451ff60 00000000 0157f008 00000003 c451fec0 c451ffa4 c451fe68
 fe60: c0265480 c0261c34 c451feb0 7fffffff 00000000 00000002 00000000 c4880000
 fe80: 41b58ab3 c138777b c02652cc c04803ec 000a0000 c451ff00 ffffff9c b6ac9f60
 fea0: c451fed4 c1705f48 c04a4a90 b78a3fdc f17ea000 ffffff9c b6ac9f60 c0100244
 fec0: f17ea21a f17ea300 f17ea000 00016920 f1800240 f18000ac f17fb7dc 01316000
 fee0: 013161b0 00002590 01316250 00000000 00000000 00000000 00002580 00000029
 ff00: 0000002a 00000013 00000000 0000000c 00000000 00000000 0157f004 c451ffb0
 ff20: c1719be0 aed6f410 c451ff74 c451ff38 c0c4103c c0c407d0 c451ff84 c451ff48
 ff40: 00000805 c02c8658 c1604230 c1719c30 00000805 0157f004 00000005 c451ffb0
 ff60: c1719be0 aed6f410 c451ffac c451ff78 c0122130 c1705f48 c451ffac 0157f008
 ff80: 00000006 0000005f 0000017b c0100244 c4880000 0000017b 00000000 c451ffa8
 ffa0: c0100060 c02652d8 0157f008 00000006 00000003 0157f008 00000000 b6ac9f60
 ffc0: 0157f008 00000006 0000005f 0000017b 00000000 00000000 aed85f74 00000000
 ffe0: b6ac9cd8 b6ac9cc8 00030200 aecf2d60 a0000010 00000003 00000000 00000000
 Backtrace:
 [<c048034c>] (kasan_poison) from [<c048053c>] (kasan_unpoison+0x48/0x5c)
 [<c04804f4>] (kasan_unpoison) from [<c047f330>] (__asan_register_globals+0x3c/0x64)
  r5:01312cff r4:f1804030
 [<c047f2f4>] (__asan_register_globals) from [<f1802098>] (_sub_I_65535_1+0x18/0xf80 [hello])
  r7:c5be7700 r6:00000001 r5:c1b52ccc r4:f18040c0
 [<f1802080>] (_sub_I_65535_1 [hello]) from [<c026106c>] (do_init_module+0x330/0x72c)
 [<c0260d3c>] (do_init_module) from [<c0264e88>] (load_module+0x3260/0x32a8)
  r10:f1804268 r9:c451fdf0 r8:00000000 r7:c1b54cc4 r6:00000000 r5:f18040c0
  r4:c451fec0
 [<c0261c28>] (load_module) from [<c0265480>] (sys_finit_module+0x1b4/0x1e8)
  r10:c451fec0 r9:00000003 r8:0157f008 r7:00000000 r6:c451ff60 r5:b78a3fd0
  r4:c1b54cc4
 [<c02652cc>] (sys_finit_module) from [<c0100060>] (ret_fast_syscall+0x0/0x1c)
 Exception stack(0xc451ffa8 to 0xc451fff0)
 ffa0:                   0157f008 00000006 00000003 0157f008 00000000 b6ac9f60
 ffc0: 0157f008 00000006 0000005f 0000017b 00000000 00000000 aed85f74 00000000
 ffe0: b6ac9cd8 b6ac9cc8 00030200 aecf2d60
  r10:0000017b r9:c4880000 r8:c0100244 r7:0000017b r6:0000005f r5:00000006
  r4:0157f008
 Code: e92d4100 e1a08001 e1a0e003 e2522040 (a8ac410a)
 ---[ end trace df6e12843197b6f5 ]---

Signed-off-by: Lecopzer Chen <lecopzer.chen@mediatek.com>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/arm/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index d89d013f586c..6b7d9f2fdb44 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1706,6 +1706,7 @@ config ARCH_WANT_GENERAL_HUGETLB
 config ARM_MODULE_PLTS
 	bool "Use PLTs to allow module memory to spill over into vmalloc area"
 	depends on MODULES
+	select KASAN_VMALLOC if KASAN
 	default y
 	help
 	  Allocate PLTs when loading modules so that jumps and calls whose
-- 
2.35.1

[PATCH AUTOSEL 4.19 11/13] drivers:md:fix a potential use-after-free bug

[Sasha Levin]

From: Wentao_Liang <Wentao_Liang_g@163.com>

[ Upstream commit 104212471b1c1817b311771d817fb692af983173 ]

In line 2884, "raid5_release_stripe(sh);" drops the reference to sh and
may cause sh to be released. However, sh is subsequently used in lines
2886 "if (sh->batch_head && sh != sh->batch_head)". This may result in an
use-after-free bug.

It can be fixed by moving "raid5_release_stripe(sh);" to the bottom of
the function.

Signed-off-by: Wentao_Liang <Wentao_Liang_g@163.com>
Signed-off-by: Song Liu <song@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/md/raid5.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index dad426cc0f90..6f04473f0838 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -2670,10 +2670,10 @@ static void raid5_end_write_request(struct bio *bi)
 	if (!test_and_clear_bit(R5_DOUBLE_LOCKED, &sh->dev[i].flags))
 		clear_bit(R5_LOCKED, &sh->dev[i].flags);
 	set_bit(STRIPE_HANDLE, &sh->state);
-	raid5_release_stripe(sh);
 
 	if (sh->batch_head && sh != sh->batch_head)
 		raid5_release_stripe(sh->batch_head);
+	raid5_release_stripe(sh);
 }
 
 static void raid5_error(struct mddev *mddev, struct md_rdev *rdev)
-- 
2.35.1

[PATCH AUTOSEL 4.19 12/13] ext4: avoid remove directory when directory is corrupted

[Sasha Levin]

From: Ye Bin <yebin10@huawei.com>

[ Upstream commit b24e77ef1c6d4dbf42749ad4903c97539cc9755a ]

Now if check directoy entry is corrupted, ext4_empty_dir may return true
then directory will be removed when file system mounted with "errors=continue".
In order not to make things worse just return false when directory is corrupted.

Signed-off-by: Ye Bin <yebin10@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20220622090223.682234-1-yebin10@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/ext4/namei.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 5f8599419150..069598d630c9 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -2826,11 +2826,8 @@ bool ext4_empty_dir(struct inode *inode)
 		de = (struct ext4_dir_entry_2 *) (bh->b_data +
 					(offset & (sb->s_blocksize - 1)));
 		if (ext4_check_dir_entry(inode, NULL, de, bh,
-					 bh->b_data, bh->b_size, offset)) {
-			offset = (offset | (sb->s_blocksize - 1)) + 1;
-			continue;
-		}
-		if (le32_to_cpu(de->inode)) {
+					 bh->b_data, bh->b_size, offset) ||
+		    le32_to_cpu(de->inode)) {
 			brelse(bh);
 			return false;
 		}
-- 
2.35.1

[PATCH AUTOSEL 4.19 13/13] ext4: avoid resizing to a partial cluster size

[Sasha Levin]

From: "Kiselev, Oleg" <okiselev@amazon.com>

[ Upstream commit 69cb8e9d8cd97cdf5e293b26d70a9dee3e35e6bd ]

This patch avoids an attempt to resize the filesystem to an
unaligned cluster boundary.  An online resize to a size that is not
integral to cluster size results in the last iteration attempting to
grow the fs by a negative amount, which trips a BUG_ON and leaves the fs
with a corrupted in-memory superblock.

Signed-off-by: Oleg Kiselev <okiselev@amazon.com>
Link: https://lore.kernel.org/r/0E92A0AB-4F16-4F1A-94B7-702CC6504FDE@amazon.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/ext4/resize.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index d37493b39ab9..a49fc255858c 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -1980,6 +1980,16 @@ int ext4_resize_fs(struct super_block *sb, ext4_fsblk_t n_blocks_count)
 	}
 	brelse(bh);
 
+	/*
+	 * For bigalloc, trim the requested size to the nearest cluster
+	 * boundary to avoid creating an unusable filesystem. We do this
+	 * silently, instead of returning an error, to avoid breaking
+	 * callers that blindly resize the filesystem to the full size of
+	 * the underlying block device.
+	 */
+	if (ext4_has_feature_bigalloc(sb))
+		n_blocks_count &= ~((1 << EXT4_CLUSTER_BITS(sb)) - 1);
+
 retry:
 	o_blocks_count = ext4_blocks_count(es);
 
-- 
2.35.1