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Filename Latest commit message Latest commit date
Bob Peterson 0007f536dc gfs2: fix glock reference problem in gfs2_trans_remove_revoke 
commit fe5e7ba11fcf1d75af8173836309e8562aefedef upstream.

Commit 9287c6452d fixed a situation in which gfs2 could use a glock
after it had been freed. To do that, it temporarily added a new glock
reference by calling gfs2_glock_hold in function gfs2_add_revoke.
However, if the bd element was removed by gfs2_trans_remove_revoke, it
failed to drop the additional reference.

This patch adds logic to gfs2_trans_remove_revoke to properly drop the
additional glock reference.

Fixes: 9287c6452d ("gfs2: Fix occasional glock use-after-free")
Cc: stable@vger.kernel.org # v5.2+
Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-12-21 11:04:34 +01:00
arch xtensa: use MEMBLOCK_ALLOC_ANYWHERE for KASAN shadow map 2019-12-21 11:04:33 +01:00
block block: fix "check bi_size overflow before merge" 2019-12-21 11:04:32 +01:00
certs
crypto
Documentation
drivers PCI: Apply Cavium ACS quirk to ThunderX2 and ThunderX3 2019-12-21 11:04:30 +01:00
fs gfs2: fix glock reference problem in gfs2_trans_remove_revoke 2019-12-21 11:04:34 +01:00
include PM / QoS: Redefine FREQ_QOS_MAX_DEFAULT_VALUE to S32_MAX 2019-12-21 11:04:31 +01:00
init
ipc
kernel workqueue: Fix missing kfree(rescuer) in destroy_workqueue() 2019-12-17 19:56:54 +01:00
lib
LICENSES
mm mm/shmem.c: cast the type of unmap_start to u64 2019-12-17 19:56:51 +01:00
net xdp: obtain the mem_id mutex before trying to remove an entry. 2019-12-18 16:09:10 +01:00
samples
scripts
security
sound
tools net/tls: Fix return values to avoid ENOTSUPP 2019-12-18 16:08:31 +01:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
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Makefile Linux 5.4.5 2019-12-18 16:09:17 +01:00
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.