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Filename Latest commit message Latest commit date
Adrian Hunter 7c7cfdcf7f scsi: ufs: Fix NULL pointer dereference in ufshcd_config_vreg_hpm() 
Fix the following BUG:

  [ 187.065689] BUG: kernel NULL pointer dereference, address: 000000000000001c
  [ 187.065790] RIP: 0010:ufshcd_vreg_set_hpm+0x3c/0x110 [ufshcd_core]
  [ 187.065938] Call Trace:
  [ 187.065959] ufshcd_resume+0x72/0x290 [ufshcd_core]
  [ 187.065980] ufshcd_system_resume+0x54/0x140 [ufshcd_core]
  [ 187.065993] ? pci_pm_restore+0xb0/0xb0
  [ 187.066005] ufshcd_pci_resume+0x15/0x20 [ufshcd_pci]
  [ 187.066017] pci_pm_thaw+0x4c/0x90
  [ 187.066030] dpm_run_callback+0x5b/0x150
  [ 187.066043] device_resume+0x11b/0x220

Voltage regulators are optional, so functions must check they exist
before dereferencing.

Note this issue is hidden if CONFIG_REGULATORS is not set, because the
offending code is optimised away.

Notes for stable:

The issue first appears in commit 57d104c153 ("ufs: add UFS power
management support") but is inadvertently fixed in commit 60f0187031
("scsi: ufs: disable vccq if it's not needed by UFS device") which in
turn was reverted by commit 730679817d ("Revert "scsi: ufs: disable vccq
if it's not needed by UFS device""). So fix applies v3.18 to v4.5 and
v5.1+

Fixes: 57d104c153 ("ufs: add UFS power management support")
Fixes: 730679817d ("Revert "scsi: ufs: disable vccq if it's not needed by UFS device"")
Cc: stable@vger.kernel.org
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2019-08-14 22:03:21 -04:00
arch hexagon: switch to generic version of pte allocation 2019-07-21 09:53:00 -07:00
block
certs
crypto
Documentation Devicetree fixes for 5.3: 2019-07-21 10:28:39 -07:00
drivers scsi: ufs: Fix NULL pointer dereference in ufshcd_config_vreg_hpm() 2019-08-14 22:03:21 -04:00
fs SMB3 fixes: two fixes for stable, one that had dependency on earlier patch in this merge window and can now go in, and a perf improvement in SMB3 open 2019-07-21 10:01:17 -07:00
include scsi: fcoe: Embed fc_rport_priv in fcoe_rport structure 2019-07-29 21:12:35 -04:00
init Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-07-19 10:42:02 -07:00
ipc Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-07-19 10:42:02 -07:00
kernel dma-mapping fixes for 5.3-rc1 2019-07-20 12:09:52 -07:00
lib Kbuild updates for v5.3 (2nd) 2019-07-20 09:34:55 -07:00
LICENSES
mm Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-07-19 10:42:02 -07:00
net Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-07-19 10:42:02 -07:00
samples Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-07-19 10:06:06 -07:00
scripts Kbuild updates for v5.3 (2nd) 2019-07-20 09:34:55 -07:00
security Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-07-19 10:42:02 -07:00
sound
tools New feature to add support for NTB virtual MSI interrupts, the ability 2019-07-21 09:46:59 -07:00
usr Kbuild updates for v5.3 (2nd) 2019-07-20 09:34:55 -07:00
virt KVM: Boost vCPUs that are delivering interrupts 2019-07-20 09:00:45 +02:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS Remove references to dead website. 2019-07-19 12:22:04 -07:00
Kbuild
Kconfig
MAINTAINERS Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-07-20 11:24:49 -07:00
Makefile Linus 5.3-rc1 2019-07-21 14:05:38 -07:00
README

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.