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Filename Latest commit message Latest commit date
Ewan D. Milne da14c05ad8 scsi: lpfc: nvmet: Avoid hang / use-after-free again when destroying targetport 
[ Upstream commit af6de8c60fe9433afa73cea6fcccdccd98ad3e5e ]

We cannot wait on a completion object in the lpfc_nvme_targetport structure
in the _destroy_targetport() code path because the NVMe/fc transport will
free that structure immediately after the .targetport_delete() callback.
This results in a use-after-free, and a crash if slub_debug=FZPU is
enabled.

An earlier fix put put the completion on the stack, but commit 2a0fb340fc
("scsi: lpfc: Correct localport timeout duration error") subsequently
changed the code to reference the completion through a pointer in the
object rather than the local stack variable.  Fix this by using the stack
variable directly.

Link: https://lore.kernel.org/r/20200729231011.13240-1-emilne@redhat.com
Fixes: 2a0fb340fc ("scsi: lpfc: Correct localport timeout duration error")
Reviewed-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Ewan D. Milne <emilne@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-08-21 13:05:35 +02:00
arch openrisc: Fix oops caused when dumping stack 2020-08-21 13:05:35 +02:00
block
certs
crypto crypto: af_alg - Fix regression on empty requests 2020-08-21 13:05:31 +02:00
Documentation dt-bindings: iio: io-channel-mux: Fix compatible string in example code 2020-08-21 13:05:23 +02:00
drivers scsi: lpfc: nvmet: Avoid hang / use-after-free again when destroying targetport 2020-08-21 13:05:35 +02:00
fs ubifs: Fix wrong orphan node deletion in ubifs_jnl_update|rename 2020-08-21 13:05:35 +02:00
include iommu/vt-d: Enforce PASID devTLB field mask 2020-08-21 13:05:34 +02:00
init
ipc
kernel module: Correctly truncate sysfs sections output 2020-08-21 13:05:28 +02:00
lib devres: keep both device name and resource name in pretty name 2020-08-21 13:05:32 +02:00
LICENSES
mm mm/memory_hotplug: fix unpaired mem_hotplug_begin/done 2020-08-21 13:05:27 +02:00
net mac80211: fix misplaced while instead of if 2020-08-21 13:05:26 +02:00
samples bpf: Fix fds_example SIGSEGV error 2020-08-19 08:16:03 +02:00
scripts
security Smack: prevent underflow in smk_set_cipso() 2020-08-19 08:16:16 +02:00
sound ALSA: usb-audio: add quirk for Pioneer DDJ-RB 2020-08-19 08:16:27 +02:00
tools tools build feature: Use CC and CXX from parent 2020-08-21 13:05:34 +02:00
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Makefile Linux 5.4.59 2020-08-19 08:16:29 +02:00
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.