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linux/drivers/parisc
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Shang XiaoJing 41f563ab3c parisc: led: Fix potential null-ptr-deref in start_task() 
start_task() calls create_singlethread_workqueue() and not checked the
ret value, which may return NULL. And a null-ptr-deref may happen:

start_task()
    create_singlethread_workqueue() # failed, led_wq is NULL
    queue_delayed_work()
        queue_delayed_work_on()
            __queue_delayed_work()  # warning here, but continue
                __queue_work()      # access wq->flags, null-ptr-deref

Check the ret value and return -ENOMEM if it is NULL.

Fixes: 3499495205 ("[PARISC] Use work queue in LED/LCD driver instead of tasklet.")
Signed-off-by: Shang XiaoJing <shangxiaojing@huawei.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org>
2022-12-17 23:19:38 +01:00
..
asp.c
ccio-dma.c parisc: ccio-dma: Add missing iounmap in error path in ccio_probe() 2022-09-13 08:50:31 +02:00
dino.c parisc: Fix CPU affinity for Lasi, WAX and Dino chips 2022-03-29 21:37:12 +02:00
eisa_eeprom.c
eisa_enumerator.c parisc: Fix spelling mistake "mis-match" -> "mismatch" in eisa driver 2022-10-14 20:06:30 +02:00
eisa.c
gsc.c parisc: Fix CPU affinity for Lasi, WAX and Dino chips 2022-03-29 21:37:12 +02:00
gsc.h parisc: Fix CPU affinity for Lasi, WAX and Dino chips 2022-03-29 21:37:12 +02:00
hppb.c
iommu-helpers.h
iommu.h
iosapic_private.h
iosapic.c parisc: Export iosapic_serial_irq() symbol for serial port driver 2022-10-27 09:12:05 +02:00
Kconfig
lasi.c parisc: Fix CPU affinity for Lasi, WAX and Dino chips 2022-03-29 21:37:12 +02:00
lba_pci.c parisc: Check the return value of ioremap() in lba_driver_probe() 2022-08-01 18:43:23 +02:00
led.c parisc: led: Fix potential null-ptr-deref in start_task() 2022-12-17 23:19:38 +01:00
Makefile
pdc_stable.c parisc: Use signed char for hardware path in pdc.h 2022-10-21 09:15:20 +02:00
power.c kernel.h: split out panic and oops helpers 2021-07-01 11:06:04 -07:00
README.dino
sba_iommu.c parisc: Remove 64bit access on 32bit machines 2022-09-10 09:55:55 +02:00
superio.c
wax.c parisc: Fix CPU affinity for Lasi, WAX and Dino chips 2022-03-29 21:37:12 +02:00

README.dino 

/*
** HP VISUALIZE Workstation PCI Bus Defect
**
** "HP has discovered a potential system defect that can affect
** the behavior of five models of HP VISUALIZE workstations when
** equipped with third-party or customer-installed PCI I/O expansion
** cards. The defect is limited to the HP C180, C160, C160L, B160L,
** and B132L VISUALIZE workstations, and will only be encountered
** when data is transmitted through PCI I/O expansion cards on the
** PCI bus. HP-supplied graphics cards that utilize the PCI bus are
** not affected."
**
** http://h20000.www2.hp.com/bizsupport/TechSupport/Home.jsp?locale=en_US&prodTypeId=12454&prodSeriesId=44443
**
**	Product		First Good Serial Number
**  C200/C240 (US)	US67350000
**B132L+/B180 (US)	US67390000
**   C200 (Europe)	3713G01000
**  B180L (Europe)	3720G01000
**
** Note that many boards were fixed/replaced under a free replacement
** program. Assume a machine is only "suspect" until proven otherwise.
**
** "The pci_check program will also be available as application
**  patch PHSS_12295"
*/