* Linux 4.4.281
@ 2021-08-15 11:40 Greg Kroah-Hartman
2021-08-15 11:40 ` Greg Kroah-Hartman
0 siblings, 1 reply; 2+ messages in thread
From: Greg Kroah-Hartman @ 2021-08-15 11:40 UTC (permalink / raw)
To: linux-kernel, akpm, torvalds, stable; +Cc: lwn, jslaby, Greg Kroah-Hartman
I'm announcing the release of the 4.4.281 kernel.
All users of the 4.4 kernel series must upgrade.
The updated 4.4.y git tree can be found at:
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-4.4.y
and can be browsed at the normal kernel.org git web browser:
https://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary
thanks,
greg k-h
------------
Makefile | 2
arch/alpha/kernel/smp.c | 2
arch/mips/Makefile | 2
arch/mips/mti-malta/malta-platform.c | 3 -
drivers/media/usb/dvb-usb-v2/rtl28xxu.c | 11 ++++-
drivers/media/v4l2-core/videobuf2-core.c | 13 +++++-
drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c | 3 -
drivers/net/ethernet/natsemi/natsemi.c | 8 ---
drivers/net/ethernet/neterion/vxge/vxge-main.c | 6 +-
drivers/net/ethernet/qlogic/qla3xxx.c | 6 +-
drivers/net/ethernet/xilinx/xilinx_emaclite.c | 5 --
drivers/net/usb/pegasus.c | 14 +++++-
drivers/pcmcia/i82092.c | 1
drivers/scsi/sr.c | 2
drivers/tty/serial/8250/8250_port.c | 12 ++++-
drivers/usb/host/ehci-pci.c | 3 +
drivers/usb/serial/ch341.c | 1
drivers/usb/serial/ftdi_sio.c | 1
drivers/usb/serial/ftdi_sio_ids.h | 3 +
drivers/usb/serial/option.c | 2
fs/namespace.c | 42 +++++++++++++-------
fs/pipe.c | 17 +++++++-
fs/reiserfs/stree.c | 31 ++++++++++++---
fs/reiserfs/super.c | 8 +++
include/net/bluetooth/hci_core.h | 1
net/bluetooth/hci_core.c | 16 +++----
net/bluetooth/hci_sock.c | 49 ++++++++++++++++--------
net/bluetooth/hci_sysfs.c | 3 +
scripts/tracing/draw_functrace.py | 6 +-
sound/core/seq/seq_ports.c | 39 +++++++++++++------
30 files changed, 223 insertions(+), 89 deletions(-)
Alex Xu (Hello71) (1):
pipe: increase minimum default pipe size to 2 pages
Dan Carpenter (1):
bnx2x: fix an error code in bnx2x_nic_load()
Daniele Palmas (1):
USB: serial: option: add Telit FD980 composition 0x1056
David Bauer (1):
USB: serial: ftdi_sio: add device ID for Auto-M3 OP-COM v2
Greg Kroah-Hartman (1):
Linux 4.4.281
H. Nikolaus Schaller (1):
mips: Fix non-POSIX regexp
Hans Verkuil (1):
media: videobuf2-core: dequeue if start_streaming fails
Hui Su (1):
scripts/tracing: fix the bug that can't parse raw_trace_func
Johan Hovold (1):
media: rtl28xxu: fix zero-length control request
Letu Ren (1):
net/qla3xxx: fix schedule while atomic in ql_wait_for_drvr_lock and ql_adapter_reset
Li Manyi (1):
scsi: sr: Return correct event when media event code is 3
Longfang Liu (1):
USB:ehci:fix Kunpeng920 ehci hardware problem
Maciej W. Rozycki (2):
serial: 8250: Mask out floating 16/32-bit bus bits
MIPS: Malta: Do not byte-swap accesses to the CBUS UART
Miklos Szeredi (1):
ovl: prevent private clone if bind mount is not allowed
Pavel Skripkin (2):
net: pegasus: fix uninit-value in get_interrupt_interval
net: vxge: fix use-after-free in vxge_device_unregister
Prarit Bhargava (1):
alpha: Send stop IPI to send to online CPUs
Shreyansh Chouhan (1):
reiserfs: check directory items on read from disk
Takashi Iwai (1):
ALSA: seq: Fix racy deletion of subscriber
Tetsuo Handa (1):
Bluetooth: defer cleanup of resources in hci_unregister_dev()
Wang Hai (1):
net: natsemi: Fix missing pci_disable_device() in probe and remove
Willy Tarreau (1):
USB: serial: ch341: fix character loss at high transfer rates
Yu Kuai (1):
reiserfs: add check for root_inode in reiserfs_fill_super
YueHaibing (1):
net: xilinx_emaclite: Do not print real IOMEM pointer
Zheyu Ma (1):
pcmcia: i82092: fix a null pointer dereference bug
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Linux 4.4.281
2021-08-15 11:40 Linux 4.4.281 Greg Kroah-Hartman
@ 2021-08-15 11:40 ` Greg Kroah-Hartman
0 siblings, 0 replies; 2+ messages in thread
From: Greg Kroah-Hartman @ 2021-08-15 11:40 UTC (permalink / raw)
To: linux-kernel, akpm, torvalds, stable; +Cc: lwn, jslaby, Greg Kroah-Hartman
diff --git a/Makefile b/Makefile
index 870bd763830e..abc388047b47 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
VERSION = 4
PATCHLEVEL = 4
-SUBLEVEL = 280
+SUBLEVEL = 281
EXTRAVERSION =
NAME = Blurry Fish Butt
diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c
index 2f24447fef92..1543b571bd99 100644
--- a/arch/alpha/kernel/smp.c
+++ b/arch/alpha/kernel/smp.c
@@ -584,7 +584,7 @@ void
smp_send_stop(void)
{
cpumask_t to_whom;
- cpumask_copy(&to_whom, cpu_possible_mask);
+ cpumask_copy(&to_whom, cpu_online_mask);
cpumask_clear_cpu(smp_processor_id(), &to_whom);
#ifdef DEBUG_IPI_MSG
if (hard_smp_processor_id() != boot_cpu_id)
diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index 252e347958f3..ca010bce5d65 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -269,7 +269,7 @@ LDFLAGS += -m $(ld-emul)
ifdef CONFIG_MIPS
CHECKFLAGS += $(shell $(CC) $(KBUILD_CFLAGS) -dM -E -x c /dev/null | \
- egrep -vw '__GNUC_(|MINOR_|PATCHLEVEL_)_' | \
+ egrep -vw '__GNUC_(MINOR_|PATCHLEVEL_)?_' | \
sed -e "s/^\#define /-D'/" -e "s/ /'='/" -e "s/$$/'/" -e 's/\$$/&&/g')
ifdef CONFIG_64BIT
CHECKFLAGS += -m64
diff --git a/arch/mips/mti-malta/malta-platform.c b/arch/mips/mti-malta/malta-platform.c
index e1dd1c1d3fde..5d2e857f96b5 100644
--- a/arch/mips/mti-malta/malta-platform.c
+++ b/arch/mips/mti-malta/malta-platform.c
@@ -52,7 +52,8 @@ static struct plat_serial8250_port uart8250_data[] = {
.mapbase = 0x1f000900, /* The CBUS UART */
.irq = MIPS_CPU_IRQ_BASE + MIPSCPU_INT_MB2,
.uartclk = 3686400, /* Twice the usual clk! */
- .iotype = UPIO_MEM32,
+ .iotype = IS_ENABLED(CONFIG_CPU_BIG_ENDIAN) ?
+ UPIO_MEM32BE : UPIO_MEM32,
.flags = CBUS_UART_FLAGS,
.regshift = 3,
},
diff --git a/drivers/media/usb/dvb-usb-v2/rtl28xxu.c b/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
index 5a503a6bb8c5..89d474998e3e 100644
--- a/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
+++ b/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
@@ -50,7 +50,16 @@ static int rtl28xxu_ctrl_msg(struct dvb_usb_device *d, struct rtl28xxu_req *req)
} else {
/* read */
requesttype = (USB_TYPE_VENDOR | USB_DIR_IN);
- pipe = usb_rcvctrlpipe(d->udev, 0);
+
+ /*
+ * Zero-length transfers must use usb_sndctrlpipe() and
+ * rtl28xxu_identify_state() uses a zero-length i2c read
+ * command to determine the chip type.
+ */
+ if (req->size)
+ pipe = usb_rcvctrlpipe(d->udev, 0);
+ else
+ pipe = usb_sndctrlpipe(d->udev, 0);
}
ret = usb_control_msg(d->udev, pipe, 0, requesttype, req->value,
diff --git a/drivers/media/v4l2-core/videobuf2-core.c b/drivers/media/v4l2-core/videobuf2-core.c
index e0041fcfa783..c1faa1332e32 100644
--- a/drivers/media/v4l2-core/videobuf2-core.c
+++ b/drivers/media/v4l2-core/videobuf2-core.c
@@ -1361,6 +1361,7 @@ static int vb2_start_streaming(struct vb2_queue *q)
int vb2_core_qbuf(struct vb2_queue *q, unsigned int index, void *pb)
{
struct vb2_buffer *vb;
+ enum vb2_buffer_state orig_state;
int ret;
if (q->error) {
@@ -1390,6 +1391,7 @@ int vb2_core_qbuf(struct vb2_queue *q, unsigned int index, void *pb)
* Add to the queued buffers list, a buffer will stay on it until
* dequeued in dqbuf.
*/
+ orig_state = vb->state;
list_add_tail(&vb->queued_entry, &q->queued_list);
q->queued_count++;
q->waiting_for_buffers = false;
@@ -1420,8 +1422,17 @@ int vb2_core_qbuf(struct vb2_queue *q, unsigned int index, void *pb)
if (q->streaming && !q->start_streaming_called &&
q->queued_count >= q->min_buffers_needed) {
ret = vb2_start_streaming(q);
- if (ret)
+ if (ret) {
+ /*
+ * Since vb2_core_qbuf will return with an error,
+ * we should return it to state DEQUEUED since
+ * the error indicates that the buffer wasn't queued.
+ */
+ list_del(&vb->queued_entry);
+ q->queued_count--;
+ vb->state = orig_state;
return ret;
+ }
}
dprintk(1, "qbuf of buffer %d succeeded\n", vb->index);
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index 13de5ce3facf..dad830ee9d5b 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -2690,7 +2690,8 @@ int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
}
/* Allocated memory for FW statistics */
- if (bnx2x_alloc_fw_stats_mem(bp))
+ rc = bnx2x_alloc_fw_stats_mem(bp);
+ if (rc)
LOAD_ERROR_EXIT(bp, load_error0);
/* request pf to initialize status blocks */
diff --git a/drivers/net/ethernet/natsemi/natsemi.c b/drivers/net/ethernet/natsemi/natsemi.c
index 122c2ee3dfe2..58527a2ec455 100644
--- a/drivers/net/ethernet/natsemi/natsemi.c
+++ b/drivers/net/ethernet/natsemi/natsemi.c
@@ -817,7 +817,7 @@ static int natsemi_probe1(struct pci_dev *pdev, const struct pci_device_id *ent)
printk(version);
#endif
- i = pci_enable_device(pdev);
+ i = pcim_enable_device(pdev);
if (i) return i;
/* natsemi has a non-standard PM control register
@@ -850,7 +850,7 @@ static int natsemi_probe1(struct pci_dev *pdev, const struct pci_device_id *ent)
ioaddr = ioremap(iostart, iosize);
if (!ioaddr) {
i = -ENOMEM;
- goto err_ioremap;
+ goto err_pci_request_regions;
}
/* Work around the dropped serial bit. */
@@ -968,9 +968,6 @@ static int natsemi_probe1(struct pci_dev *pdev, const struct pci_device_id *ent)
err_register_netdev:
iounmap(ioaddr);
- err_ioremap:
- pci_release_regions(pdev);
-
err_pci_request_regions:
free_netdev(dev);
return i;
@@ -3228,7 +3225,6 @@ static void natsemi_remove1(struct pci_dev *pdev)
NATSEMI_REMOVE_FILE(pdev, dspcfg_workaround);
unregister_netdev (dev);
- pci_release_regions (pdev);
iounmap(ioaddr);
free_netdev (dev);
}
diff --git a/drivers/net/ethernet/neterion/vxge/vxge-main.c b/drivers/net/ethernet/neterion/vxge/vxge-main.c
index e0993eba5df3..c6950e580883 100644
--- a/drivers/net/ethernet/neterion/vxge/vxge-main.c
+++ b/drivers/net/ethernet/neterion/vxge/vxge-main.c
@@ -3539,13 +3539,13 @@ static void vxge_device_unregister(struct __vxge_hw_device *hldev)
kfree(vdev->vpaths);
- /* we are safe to free it now */
- free_netdev(dev);
-
vxge_debug_init(vdev->level_trace, "%s: ethernet device unregistered",
buf);
vxge_debug_entryexit(vdev->level_trace, "%s: %s:%d Exiting...", buf,
__func__, __LINE__);
+
+ /* we are safe to free it now */
+ free_netdev(dev);
}
/*
diff --git a/drivers/net/ethernet/qlogic/qla3xxx.c b/drivers/net/ethernet/qlogic/qla3xxx.c
index 192950a112c9..cb9d43c871c4 100644
--- a/drivers/net/ethernet/qlogic/qla3xxx.c
+++ b/drivers/net/ethernet/qlogic/qla3xxx.c
@@ -155,7 +155,7 @@ static int ql_wait_for_drvr_lock(struct ql3_adapter *qdev)
"driver lock acquired\n");
return 1;
}
- ssleep(1);
+ mdelay(1000);
} while (++i < 10);
netdev_err(qdev->ndev, "Timed out waiting for driver lock...\n");
@@ -3287,7 +3287,7 @@ static int ql_adapter_reset(struct ql3_adapter *qdev)
if ((value & ISP_CONTROL_SR) == 0)
break;
- ssleep(1);
+ mdelay(1000);
} while ((--max_wait_time));
/*
@@ -3323,7 +3323,7 @@ static int ql_adapter_reset(struct ql3_adapter *qdev)
ispControlStatus);
if ((value & ISP_CONTROL_FSR) == 0)
break;
- ssleep(1);
+ mdelay(1000);
} while ((--max_wait_time));
}
if (max_wait_time == 0)
diff --git a/drivers/net/ethernet/xilinx/xilinx_emaclite.c b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
index 909a008f9927..26cd42bfef0c 100644
--- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c
+++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
@@ -1180,9 +1180,8 @@ static int xemaclite_of_probe(struct platform_device *ofdev)
}
dev_info(dev,
- "Xilinx EmacLite at 0x%08X mapped to 0x%08X, irq=%d\n",
- (unsigned int __force)ndev->mem_start,
- (unsigned int __force)lp->base_addr, ndev->irq);
+ "Xilinx EmacLite at 0x%08X mapped to 0x%p, irq=%d\n",
+ (unsigned int __force)ndev->mem_start, lp->base_addr, ndev->irq);
return 0;
error:
diff --git a/drivers/net/usb/pegasus.c b/drivers/net/usb/pegasus.c
index 4f505eb4f422..a7b1df01e0f7 100644
--- a/drivers/net/usb/pegasus.c
+++ b/drivers/net/usb/pegasus.c
@@ -755,12 +755,16 @@ static inline void disable_net_traffic(pegasus_t *pegasus)
set_registers(pegasus, EthCtrl0, sizeof(tmp), &tmp);
}
-static inline void get_interrupt_interval(pegasus_t *pegasus)
+static inline int get_interrupt_interval(pegasus_t *pegasus)
{
u16 data;
u8 interval;
+ int ret;
+
+ ret = read_eprom_word(pegasus, 4, &data);
+ if (ret < 0)
+ return ret;
- read_eprom_word(pegasus, 4, &data);
interval = data >> 8;
if (pegasus->usb->speed != USB_SPEED_HIGH) {
if (interval < 0x80) {
@@ -775,6 +779,8 @@ static inline void get_interrupt_interval(pegasus_t *pegasus)
}
}
pegasus->intr_interval = interval;
+
+ return 0;
}
static void set_carrier(struct net_device *net)
@@ -1190,7 +1196,9 @@ static int pegasus_probe(struct usb_interface *intf,
| NETIF_MSG_PROBE | NETIF_MSG_LINK);
pegasus->features = usb_dev_id[dev_index].private;
- get_interrupt_interval(pegasus);
+ res = get_interrupt_interval(pegasus);
+ if (res)
+ goto out2;
if (reset_mac(pegasus)) {
dev_err(&intf->dev, "can't reset MAC\n");
res = -EIO;
diff --git a/drivers/pcmcia/i82092.c b/drivers/pcmcia/i82092.c
index aae7e6df99cd..ba13e3c3d6b8 100644
--- a/drivers/pcmcia/i82092.c
+++ b/drivers/pcmcia/i82092.c
@@ -105,6 +105,7 @@ static int i82092aa_pci_probe(struct pci_dev *dev, const struct pci_device_id *i
for (i = 0;i<socket_count;i++) {
sockets[i].card_state = 1; /* 1 = present but empty */
sockets[i].io_base = pci_resource_start(dev, 0);
+ sockets[i].dev = dev;
sockets[i].socket.features |= SS_CAP_PCCARD;
sockets[i].socket.map_size = 0x1000;
sockets[i].socket.irq_mask = 0;
diff --git a/drivers/scsi/sr.c b/drivers/scsi/sr.c
index 6e31cedf0b6c..df019b78d9f7 100644
--- a/drivers/scsi/sr.c
+++ b/drivers/scsi/sr.c
@@ -217,7 +217,7 @@ static unsigned int sr_get_events(struct scsi_device *sdev)
else if (med->media_event_code == 2)
return DISK_EVENT_MEDIA_CHANGE;
else if (med->media_event_code == 3)
- return DISK_EVENT_EJECT_REQUEST;
+ return DISK_EVENT_MEDIA_CHANGE;
return 0;
}
diff --git a/drivers/tty/serial/8250/8250_port.c b/drivers/tty/serial/8250/8250_port.c
index fef1b9335f60..041bfe1d4191 100644
--- a/drivers/tty/serial/8250/8250_port.c
+++ b/drivers/tty/serial/8250/8250_port.c
@@ -274,7 +274,11 @@ configured less than Maximum supported fifo bytes */
/* Uart divisor latch read */
static int default_serial_dl_read(struct uart_8250_port *up)
{
- return serial_in(up, UART_DLL) | serial_in(up, UART_DLM) << 8;
+ /* Assign these in pieces to truncate any bits above 7. */
+ unsigned char dll = serial_in(up, UART_DLL);
+ unsigned char dlm = serial_in(up, UART_DLM);
+
+ return dll | dlm << 8;
}
/* Uart divisor latch write */
@@ -1160,9 +1164,11 @@ static void autoconfig(struct uart_8250_port *up)
serial_out(up, UART_LCR, 0);
serial_out(up, UART_FCR, UART_FCR_ENABLE_FIFO);
- scratch = serial_in(up, UART_IIR) >> 6;
- switch (scratch) {
+ /* Assign this as it is to truncate any bits above 7. */
+ scratch = serial_in(up, UART_IIR);
+
+ switch (scratch >> 6) {
case 0:
autoconfig_8250(up);
break;
diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
index 33e9ed7fe026..d1e2667918e1 100644
--- a/drivers/usb/host/ehci-pci.c
+++ b/drivers/usb/host/ehci-pci.c
@@ -312,6 +312,9 @@ static int ehci_pci_setup(struct usb_hcd *hcd)
if (pdev->vendor == PCI_VENDOR_ID_STMICRO
&& pdev->device == PCI_DEVICE_ID_STMICRO_USB_HOST)
; /* ConneXT has no sbrn register */
+ else if (pdev->vendor == PCI_VENDOR_ID_HUAWEI
+ && pdev->device == 0xa239)
+ ; /* HUAWEI Kunpeng920 USB EHCI has no sbrn register */
else
pci_read_config_byte(pdev, 0x60, &ehci->sbrn);
diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c
index 2cff9c40f28a..3f3535d3c99e 100644
--- a/drivers/usb/serial/ch341.c
+++ b/drivers/usb/serial/ch341.c
@@ -585,6 +585,7 @@ static struct usb_serial_driver ch341_device = {
.owner = THIS_MODULE,
.name = "ch341-uart",
},
+ .bulk_in_size = 512,
.id_table = id_table,
.num_ports = 1,
.open = ch341_open,
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index f8b8bdc0dc6f..c31cb9a97165 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -214,6 +214,7 @@ static const struct usb_device_id id_table_combined[] = {
{ USB_DEVICE(FTDI_VID, FTDI_MTXORB_6_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_R2000KU_TRUE_RNG) },
{ USB_DEVICE(FTDI_VID, FTDI_VARDAAN_PID) },
+ { USB_DEVICE(FTDI_VID, FTDI_AUTO_M3_OP_COM_V2_PID) },
{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0100_PID) },
{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0101_PID) },
{ USB_DEVICE(MTXORB_VID, MTXORB_FTDI_RANGE_0102_PID) },
diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h
index 54ded2bc9eb6..3b7cea8df446 100644
--- a/drivers/usb/serial/ftdi_sio_ids.h
+++ b/drivers/usb/serial/ftdi_sio_ids.h
@@ -158,6 +158,9 @@
/* Vardaan Enterprises Serial Interface VEUSB422R3 */
#define FTDI_VARDAAN_PID 0xF070
+/* Auto-M3 Ltd. - OP-COM USB V2 - OBD interface Adapter */
+#define FTDI_AUTO_M3_OP_COM_V2_PID 0x4f50
+
/*
* Xsens Technologies BV products (http://www.xsens.com).
*/
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index b9017e85cc1a..b3336a7c09e0 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -1185,6 +1185,8 @@ static const struct usb_device_id option_ids[] = {
.driver_info = NCTRL(2) | RSVD(3) },
{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1055, 0xff), /* Telit FN980 (PCIe) */
.driver_info = NCTRL(0) | RSVD(1) },
+ { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x1056, 0xff), /* Telit FD980 */
+ .driver_info = NCTRL(2) | RSVD(3) },
{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_ME910),
.driver_info = NCTRL(0) | RSVD(1) | RSVD(3) },
{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_ME910_DUAL_MODEM),
diff --git a/fs/namespace.c b/fs/namespace.c
index 5fb1e4a430f8..ddd9d47059ee 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -1830,6 +1830,20 @@ void drop_collected_mounts(struct vfsmount *mnt)
namespace_unlock();
}
+static bool has_locked_children(struct mount *mnt, struct dentry *dentry)
+{
+ struct mount *child;
+
+ list_for_each_entry(child, &mnt->mnt_mounts, mnt_child) {
+ if (!is_subdir(child->mnt_mountpoint, dentry))
+ continue;
+
+ if (child->mnt.mnt_flags & MNT_LOCKED)
+ return true;
+ }
+ return false;
+}
+
/**
* clone_private_mount - create a private clone of a path
*
@@ -1844,16 +1858,27 @@ struct vfsmount *clone_private_mount(struct path *path)
struct mount *old_mnt = real_mount(path->mnt);
struct mount *new_mnt;
+ down_read(&namespace_sem);
if (IS_MNT_UNBINDABLE(old_mnt))
- return ERR_PTR(-EINVAL);
+ goto invalid;
+
+ if (!check_mnt(old_mnt))
+ goto invalid;
+
+ if (has_locked_children(old_mnt, path->dentry))
+ goto invalid;
- down_read(&namespace_sem);
new_mnt = clone_mnt(old_mnt, path->dentry, CL_PRIVATE);
up_read(&namespace_sem);
+
if (IS_ERR(new_mnt))
return ERR_CAST(new_mnt);
return &new_mnt->mnt;
+
+invalid:
+ up_read(&namespace_sem);
+ return ERR_PTR(-EINVAL);
}
EXPORT_SYMBOL_GPL(clone_private_mount);
@@ -2169,19 +2194,6 @@ static int do_change_type(struct path *path, int flag)
return err;
}
-static bool has_locked_children(struct mount *mnt, struct dentry *dentry)
-{
- struct mount *child;
- list_for_each_entry(child, &mnt->mnt_mounts, mnt_child) {
- if (!is_subdir(child->mnt_mountpoint, dentry))
- continue;
-
- if (child->mnt.mnt_flags & MNT_LOCKED)
- return true;
- }
- return false;
-}
-
/*
* do loopback mount.
*/
diff --git a/fs/pipe.c b/fs/pipe.c
index 6534470a6c19..37a003b645ef 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -27,6 +27,21 @@
#include "internal.h"
+/*
+ * New pipe buffers will be restricted to this size while the user is exceeding
+ * their pipe buffer quota. The general pipe use case needs at least two
+ * buffers: one for data yet to be read, and one for new data. If this is less
+ * than two, then a write to a non-empty pipe may block even if the pipe is not
+ * full. This can occur with GNU make jobserver or similar uses of pipes as
+ * semaphores: multiple processes may be waiting to write tokens back to the
+ * pipe before reading tokens: https://lore.kernel.org/lkml/1628086770.5rn8p04n6j.none@localhost/.
+ *
+ * Users can reduce their pipe buffers with F_SETPIPE_SZ below this at their
+ * own risk, namely: pipe writes to non-full pipes may block until the pipe is
+ * emptied.
+ */
+#define PIPE_MIN_DEF_BUFFERS 2
+
/*
* The max size that a non-root user is allowed to grow the pipe. Can
* be set by root in /proc/sys/fs/pipe-max-size
@@ -621,7 +636,7 @@ struct pipe_inode_info *alloc_pipe_info(void)
if (!too_many_pipe_buffers_hard(user)) {
if (too_many_pipe_buffers_soft(user))
- pipe_bufs = 1;
+ pipe_bufs = PIPE_MIN_DEF_BUFFERS;
pipe->bufs = kzalloc(sizeof(struct pipe_buffer) * pipe_bufs, GFP_KERNEL);
}
diff --git a/fs/reiserfs/stree.c b/fs/reiserfs/stree.c
index 33b78ee9fb9e..13322c39e6cc 100644
--- a/fs/reiserfs/stree.c
+++ b/fs/reiserfs/stree.c
@@ -386,6 +386,24 @@ void pathrelse(struct treepath *search_path)
search_path->path_length = ILLEGAL_PATH_ELEMENT_OFFSET;
}
+static int has_valid_deh_location(struct buffer_head *bh, struct item_head *ih)
+{
+ struct reiserfs_de_head *deh;
+ int i;
+
+ deh = B_I_DEH(bh, ih);
+ for (i = 0; i < ih_entry_count(ih); i++) {
+ if (deh_location(&deh[i]) > ih_item_len(ih)) {
+ reiserfs_warning(NULL, "reiserfs-5094",
+ "directory entry location seems wrong %h",
+ &deh[i]);
+ return 0;
+ }
+ }
+
+ return 1;
+}
+
static int is_leaf(char *buf, int blocksize, struct buffer_head *bh)
{
struct block_head *blkh;
@@ -453,11 +471,14 @@ static int is_leaf(char *buf, int blocksize, struct buffer_head *bh)
"(second one): %h", ih);
return 0;
}
- if (is_direntry_le_ih(ih) && (ih_item_len(ih) < (ih_entry_count(ih) * IH_SIZE))) {
- reiserfs_warning(NULL, "reiserfs-5093",
- "item entry count seems wrong %h",
- ih);
- return 0;
+ if (is_direntry_le_ih(ih)) {
+ if (ih_item_len(ih) < (ih_entry_count(ih) * IH_SIZE)) {
+ reiserfs_warning(NULL, "reiserfs-5093",
+ "item entry count seems wrong %h",
+ ih);
+ return 0;
+ }
+ return has_valid_deh_location(bh, ih);
}
prev_location = ih_location(ih);
}
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index 503d8c06e0d9..2ffcbe451202 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -2050,6 +2050,14 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
unlock_new_inode(root_inode);
}
+ if (!S_ISDIR(root_inode->i_mode) || !inode_get_bytes(root_inode) ||
+ !root_inode->i_size) {
+ SWARN(silent, s, "", "corrupt root inode, run fsck");
+ iput(root_inode);
+ errval = -EUCLEAN;
+ goto error;
+ }
+
s->s_root = d_make_root(root_inode);
if (!s->s_root)
goto error;
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index f042188c8099..e1e181059324 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1013,6 +1013,7 @@ struct hci_dev *hci_alloc_dev(void);
void hci_free_dev(struct hci_dev *hdev);
int hci_register_dev(struct hci_dev *hdev);
void hci_unregister_dev(struct hci_dev *hdev);
+void hci_cleanup_dev(struct hci_dev *hdev);
int hci_suspend_dev(struct hci_dev *hdev);
int hci_resume_dev(struct hci_dev *hdev);
int hci_reset_dev(struct hci_dev *hdev);
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 041e719543fe..304abf2af9f3 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -3457,14 +3457,10 @@ EXPORT_SYMBOL(hci_register_dev);
/* Unregister HCI device */
void hci_unregister_dev(struct hci_dev *hdev)
{
- int id;
-
BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus);
hci_dev_set_flag(hdev, HCI_UNREGISTER);
- id = hdev->id;
-
write_lock(&hci_dev_list_lock);
list_del(&hdev->list);
write_unlock(&hci_dev_list_lock);
@@ -3493,7 +3489,14 @@ void hci_unregister_dev(struct hci_dev *hdev)
}
device_del(&hdev->dev);
+ /* Actual cleanup is deferred until hci_cleanup_dev(). */
+ hci_dev_put(hdev);
+}
+EXPORT_SYMBOL(hci_unregister_dev);
+/* Cleanup HCI device */
+void hci_cleanup_dev(struct hci_dev *hdev)
+{
debugfs_remove_recursive(hdev->debugfs);
destroy_workqueue(hdev->workqueue);
@@ -3513,11 +3516,8 @@ void hci_unregister_dev(struct hci_dev *hdev)
hci_discovery_filter_clear(hdev);
hci_dev_unlock(hdev);
- hci_dev_put(hdev);
-
- ida_simple_remove(&hci_index_ida, id);
+ ida_simple_remove(&hci_index_ida, hdev->id);
}
-EXPORT_SYMBOL(hci_unregister_dev);
/* Suspend HCI device */
int hci_suspend_dev(struct hci_dev *hdev)
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index 4ab69f6e910f..4c43cc649055 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -53,6 +53,17 @@ struct hci_pinfo {
unsigned long flags;
};
+static struct hci_dev *hci_hdev_from_sock(struct sock *sk)
+{
+ struct hci_dev *hdev = hci_pi(sk)->hdev;
+
+ if (!hdev)
+ return ERR_PTR(-EBADFD);
+ if (hci_dev_test_flag(hdev, HCI_UNREGISTER))
+ return ERR_PTR(-EPIPE);
+ return hdev;
+}
+
void hci_sock_set_flag(struct sock *sk, int nr)
{
set_bit(nr, &hci_pi(sk)->flags);
@@ -480,19 +491,13 @@ void hci_sock_dev_event(struct hci_dev *hdev, int event)
if (event == HCI_DEV_UNREG) {
struct sock *sk;
- /* Detach sockets from device */
+ /* Wake up sockets using this dead device */
read_lock(&hci_sk_list.lock);
sk_for_each(sk, &hci_sk_list.head) {
- lock_sock(sk);
if (hci_pi(sk)->hdev == hdev) {
- hci_pi(sk)->hdev = NULL;
sk->sk_err = EPIPE;
- sk->sk_state = BT_OPEN;
sk->sk_state_change(sk);
-
- hci_dev_put(hdev);
}
- release_sock(sk);
}
read_unlock(&hci_sk_list.lock);
}
@@ -631,10 +636,10 @@ static int hci_sock_blacklist_del(struct hci_dev *hdev, void __user *arg)
static int hci_sock_bound_ioctl(struct sock *sk, unsigned int cmd,
unsigned long arg)
{
- struct hci_dev *hdev = hci_pi(sk)->hdev;
+ struct hci_dev *hdev = hci_hdev_from_sock(sk);
- if (!hdev)
- return -EBADFD;
+ if (IS_ERR(hdev))
+ return PTR_ERR(hdev);
if (hci_dev_test_flag(hdev, HCI_USER_CHANNEL))
return -EBUSY;
@@ -766,6 +771,18 @@ static int hci_sock_bind(struct socket *sock, struct sockaddr *addr,
lock_sock(sk);
+ /* Allow detaching from dead device and attaching to alive device, if
+ * the caller wants to re-bind (instead of close) this socket in
+ * response to hci_sock_dev_event(HCI_DEV_UNREG) notification.
+ */
+ hdev = hci_pi(sk)->hdev;
+ if (hdev && hci_dev_test_flag(hdev, HCI_UNREGISTER)) {
+ hci_pi(sk)->hdev = NULL;
+ sk->sk_state = BT_OPEN;
+ hci_dev_put(hdev);
+ }
+ hdev = NULL;
+
if (sk->sk_state == BT_BOUND) {
err = -EALREADY;
goto done;
@@ -937,9 +954,9 @@ static int hci_sock_getname(struct socket *sock, struct sockaddr *addr,
lock_sock(sk);
- hdev = hci_pi(sk)->hdev;
- if (!hdev) {
- err = -EBADFD;
+ hdev = hci_hdev_from_sock(sk);
+ if (IS_ERR(hdev)) {
+ err = PTR_ERR(hdev);
goto done;
}
@@ -1191,9 +1208,9 @@ static int hci_sock_sendmsg(struct socket *sock, struct msghdr *msg,
goto done;
}
- hdev = hci_pi(sk)->hdev;
- if (!hdev) {
- err = -EBADFD;
+ hdev = hci_hdev_from_sock(sk);
+ if (IS_ERR(hdev)) {
+ err = PTR_ERR(hdev);
goto done;
}
diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index 555982a78a58..a21e9c93c46c 100644
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -180,6 +180,9 @@ ATTRIBUTE_GROUPS(bt_host);
static void bt_host_release(struct device *dev)
{
struct hci_dev *hdev = to_hci_dev(dev);
+
+ if (hci_dev_test_flag(hdev, HCI_UNREGISTER))
+ hci_cleanup_dev(hdev);
kfree(hdev);
module_put(THIS_MODULE);
}
diff --git a/scripts/tracing/draw_functrace.py b/scripts/tracing/draw_functrace.py
index db40fa04cd51..8754b8fbe943 100755
--- a/scripts/tracing/draw_functrace.py
+++ b/scripts/tracing/draw_functrace.py
@@ -17,7 +17,7 @@ Usage:
$ cat /sys/kernel/debug/tracing/trace_pipe > ~/raw_trace_func
Wait some times but not too much, the script is a bit slow.
Break the pipe (Ctrl + Z)
- $ scripts/draw_functrace.py < raw_trace_func > draw_functrace
+ $ scripts/tracing/draw_functrace.py < ~/raw_trace_func > draw_functrace
Then you have your drawn trace in draw_functrace
"""
@@ -103,10 +103,10 @@ def parseLine(line):
line = line.strip()
if line.startswith("#"):
raise CommentLineException
- m = re.match("[^]]+?\\] +([0-9.]+): (\\w+) <-(\\w+)", line)
+ m = re.match("[^]]+?\\] +([a-z.]+) +([0-9.]+): (\\w+) <-(\\w+)", line)
if m is None:
raise BrokenLineException
- return (m.group(1), m.group(2), m.group(3))
+ return (m.group(2), m.group(3), m.group(4))
def main():
diff --git a/sound/core/seq/seq_ports.c b/sound/core/seq/seq_ports.c
index a42e2ce4a726..8f694438ecdd 100644
--- a/sound/core/seq/seq_ports.c
+++ b/sound/core/seq/seq_ports.c
@@ -532,10 +532,11 @@ static int check_and_subscribe_port(struct snd_seq_client *client,
return err;
}
-static void delete_and_unsubscribe_port(struct snd_seq_client *client,
- struct snd_seq_client_port *port,
- struct snd_seq_subscribers *subs,
- bool is_src, bool ack)
+/* called with grp->list_mutex held */
+static void __delete_and_unsubscribe_port(struct snd_seq_client *client,
+ struct snd_seq_client_port *port,
+ struct snd_seq_subscribers *subs,
+ bool is_src, bool ack)
{
struct snd_seq_port_subs_info *grp;
struct list_head *list;
@@ -543,7 +544,6 @@ static void delete_and_unsubscribe_port(struct snd_seq_client *client,
grp = is_src ? &port->c_src : &port->c_dest;
list = is_src ? &subs->src_list : &subs->dest_list;
- down_write(&grp->list_mutex);
write_lock_irq(&grp->list_lock);
empty = list_empty(list);
if (!empty)
@@ -553,6 +553,18 @@ static void delete_and_unsubscribe_port(struct snd_seq_client *client,
if (!empty)
unsubscribe_port(client, port, grp, &subs->info, ack);
+}
+
+static void delete_and_unsubscribe_port(struct snd_seq_client *client,
+ struct snd_seq_client_port *port,
+ struct snd_seq_subscribers *subs,
+ bool is_src, bool ack)
+{
+ struct snd_seq_port_subs_info *grp;
+
+ grp = is_src ? &port->c_src : &port->c_dest;
+ down_write(&grp->list_mutex);
+ __delete_and_unsubscribe_port(client, port, subs, is_src, ack);
up_write(&grp->list_mutex);
}
@@ -608,27 +620,30 @@ int snd_seq_port_disconnect(struct snd_seq_client *connector,
struct snd_seq_client_port *dest_port,
struct snd_seq_port_subscribe *info)
{
- struct snd_seq_port_subs_info *src = &src_port->c_src;
+ struct snd_seq_port_subs_info *dest = &dest_port->c_dest;
struct snd_seq_subscribers *subs;
int err = -ENOENT;
- down_write(&src->list_mutex);
+ /* always start from deleting the dest port for avoiding concurrent
+ * deletions
+ */
+ down_write(&dest->list_mutex);
/* look for the connection */
- list_for_each_entry(subs, &src->list_head, src_list) {
+ list_for_each_entry(subs, &dest->list_head, dest_list) {
if (match_subs_info(info, &subs->info)) {
- atomic_dec(&subs->ref_count); /* mark as not ready */
+ __delete_and_unsubscribe_port(dest_client, dest_port,
+ subs, false,
+ connector->number != dest_client->number);
err = 0;
break;
}
}
- up_write(&src->list_mutex);
+ up_write(&dest->list_mutex);
if (err < 0)
return err;
delete_and_unsubscribe_port(src_client, src_port, subs, true,
connector->number != src_client->number);
- delete_and_unsubscribe_port(dest_client, dest_port, subs, false,
- connector->number != dest_client->number);
kfree(subs);
return 0;
}
^ permalink raw reply related [flat|nested] 2+ messages in thread
end of thread, other threads:[~2021-08-15 11:40 UTC | newest]
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2021-08-15 11:40 ` Greg Kroah-Hartman
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