https://github.com/torvalds/linux
Revision 2127d22509aec3a83dffb2a3c736df7ba747a7ce authored by Miaohe Lin on 18 October 2021, 22:15:52 UTC, committed by Linus Torvalds on 19 October 2021, 06:22:03 UTC
Patch series "Fixups for slub".
This series contains various bug fixes for slub. We fix memoryleak,
use-afer-free, NULL pointer dereferencing and so on in slub. More
details can be found in the respective changelogs.
This patch (of 5):
It's possible that __seq_open_private() will return NULL. So we should
check it before using lest dereferencing NULL pointer. And in error
paths, we forgot to release private buffer via seq_release_private().
Memory will leak in these paths.
Link: https://lkml.kernel.org/r/20210916123920.48704-1-linmiaohe@huawei.com
Link: https://lkml.kernel.org/r/20210916123920.48704-2-linmiaohe@huawei.com
Fixes: 64dd68497be7 ("mm: slub: move sysfs slab alloc/free interfaces to debugfs")
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Faiyaz Mohammed <faiyazm@codeaurora.org>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Bharata B Rao <bharata@linux.ibm.com>
Cc: Roman Gushchin <guro@fb.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent 6d2aec9
Tip revision: 2127d22509aec3a83dffb2a3c736df7ba747a7ce authored by Miaohe Lin on 18 October 2021, 22:15:52 UTC
mm, slub: fix two bugs in slab_debug_trace_open()
mm, slub: fix two bugs in slab_debug_trace_open()
Tip revision: 2127d22
Kconfig
# SPDX-License-Identifier: GPL-2.0-only
config SSB_POSSIBLE
bool
depends on HAS_IOMEM && HAS_DMA
default y
menuconfig SSB
tristate "Sonics Silicon Backplane support"
depends on SSB_POSSIBLE
help
Support for the Sonics Silicon Backplane bus.
You only need to enable this option, if you are
configuring a kernel for an embedded system with
this bus.
It will be auto-selected if needed in other
environments.
The module will be called ssb.
If unsure, say N.
if SSB
# Common SPROM support routines
config SSB_SPROM
bool
# Support for Block-I/O. SELECT this from the driver that needs it.
config SSB_BLOCKIO
bool
depends on SSB
config SSB_PCIHOST_POSSIBLE
bool
depends on SSB && (PCI = y || PCI = SSB) && (PCI_DRIVERS_LEGACY || !MIPS)
default y
config SSB_PCIHOST
bool "Support for SSB on PCI-bus host"
depends on SSB_PCIHOST_POSSIBLE
select SSB_SPROM
default y
help
Support for a Sonics Silicon Backplane on top
of a PCI device.
If unsure, say Y
config SSB_B43_PCI_BRIDGE
bool
depends on SSB_PCIHOST
default n
config SSB_PCMCIAHOST_POSSIBLE
bool
depends on SSB && (PCMCIA = y || PCMCIA = SSB)
default y
config SSB_PCMCIAHOST
bool "Support for SSB on PCMCIA-bus host"
depends on SSB_PCMCIAHOST_POSSIBLE
select SSB_SPROM
help
Support for a Sonics Silicon Backplane on top
of a PCMCIA device.
If unsure, say N
config SSB_SDIOHOST_POSSIBLE
bool
depends on SSB && (MMC = y || MMC = SSB)
default y
config SSB_SDIOHOST
bool "Support for SSB on SDIO-bus host"
depends on SSB_SDIOHOST_POSSIBLE
help
Support for a Sonics Silicon Backplane on top
of a SDIO device.
If unsure, say N
config SSB_HOST_SOC
bool "Support for SSB bus on SoC"
depends on SSB && BCM47XX_NVRAM
select SSB_SPROM
help
Host interface for a SSB directly mapped into memory. This is
for some Broadcom SoCs from the BCM47xx and BCM53xx lines.
If unsure, say N
config SSB_SERIAL
bool
depends on SSB
# ChipCommon and ExtIf serial support routines.
config SSB_DRIVER_PCICORE_POSSIBLE
bool
depends on SSB_PCIHOST
default y
config SSB_DRIVER_PCICORE
bool "SSB PCI core driver"
depends on SSB_DRIVER_PCICORE_POSSIBLE
help
Driver for the Sonics Silicon Backplane attached
Broadcom PCI core.
If unsure, say Y
config SSB_PCICORE_HOSTMODE
bool "Hostmode support for SSB PCI core"
depends on SSB_DRIVER_PCICORE && SSB_DRIVER_MIPS && SSB = y
help
PCIcore hostmode operation (external PCI bus).
config SSB_DRIVER_MIPS
bool "SSB Broadcom MIPS core driver"
depends on SSB && MIPS
select SSB_SERIAL
select SSB_SFLASH
help
Driver for the Sonics Silicon Backplane attached
Broadcom MIPS core.
If unsure, say N
config SSB_SFLASH
bool "SSB serial flash support"
depends on SSB_DRIVER_MIPS
default y
# Assumption: We are on embedded, if we compile the MIPS core.
config SSB_EMBEDDED
bool
depends on SSB_DRIVER_MIPS && SSB_PCICORE_HOSTMODE
default y
config SSB_DRIVER_EXTIF
bool "SSB Broadcom EXTIF core driver"
depends on SSB_DRIVER_MIPS
help
Driver for the Sonics Silicon Backplane attached
Broadcom EXTIF core.
If unsure, say N
config SSB_DRIVER_GIGE
bool "SSB Broadcom Gigabit Ethernet driver"
depends on SSB_PCIHOST_POSSIBLE && SSB_EMBEDDED && MIPS
help
Driver for the Sonics Silicon Backplane attached
Broadcom Gigabit Ethernet.
If unsure, say N
config SSB_DRIVER_GPIO
bool "SSB GPIO driver"
depends on SSB && GPIOLIB
select IRQ_DOMAIN if SSB_EMBEDDED
help
Driver to provide access to the GPIO pins on the bus.
If unsure, say N
endif # SSB
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