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Filename Latest commit message Latest commit date
Lv Yunlong 59021008b3 drivers/block/null_blk/main: Fix a double free in null_init. 
[ Upstream commit 72ce11ddfa4e9e1879103581a60b7e34547eaa0a ]

In null_init, null_add_dev(dev) is called.
In null_add_dev, it calls null_free_zoned_dev(dev) to free dev->zones
via kvfree(dev->zones) in out_cleanup_zone branch and returns err.
Then null_init accept the err code and then calls null_free_dev(dev).

But in null_free_dev(dev), dev->zones is freed again by
null_free_zoned_dev().

My patch set dev->zones to NULL in null_free_zoned_dev() after
kvfree(dev->zones) is called, to avoid the double free.

Fixes: 2984c8684f ("nullb: factor disk parameters")
Signed-off-by: Lv Yunlong <lyl2019@mail.ustc.edu.cn>
Link: https://lore.kernel.org/r/20210426143229.7374-1-lyl2019@mail.ustc.edu.cn
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2021-05-14 09:44:26 +02:00
arch x86/events/amd/iommu: Fix sysfs type mismatch 2021-05-14 09:44:26 +02:00
block
certs
crypto
Documentation
drivers drivers/block/null_blk/main: Fix a double free in null_init. 2021-05-14 09:44:26 +02:00
fs ovl: fix missing revert_creds() on error path 2021-05-14 09:44:16 +02:00
include tty: fix return value for unsupported ioctls 2021-05-14 09:44:22 +02:00
init
ipc
kernel sched/debug: Fix cgroup_path[] serialization 2021-05-14 09:44:26 +02:00
lib
LICENSES
mm
net cfg80211: scan: drop entry from hidden_list on overflow 2021-05-14 09:44:13 +02:00
samples
scripts
security
sound ALSA: hda/realtek: ALC285 Thinkpad jack pin quirk is unreachable 2021-05-14 09:44:15 +02:00
tools
usr
virt KVM: Stop looking for coalesced MMIO zones if the bus is destroyed 2021-05-14 09:44:15 +02:00
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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.