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Nicholas Piggin f7d9231300 powerpc/64s: Fix VAS mm use after free 
[ Upstream commit b4bda59b47879cce38a6ec5a01cd3cac702b5331 ]

The refcount on mm is dropped before the coprocessor is detached.

Reported-by: Sachin Sant <sachinp@linux.ibm.com>
Fixes: 7bc6f71bdff5f ("powerpc/vas: Define and use common vas_window struct")
Fixes: b22f2d88e435c ("powerpc/pseries/vas: Integrate API with open/close windows")
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Tested-by: Sachin Sant <sachinp@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230607101024.14559-1-npiggin@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-07-23 13:47:12 +02:00
arch
powerpc/64s: Fix VAS mm use after free
2023-07-23 13:47:12 +02:00
block
blk-iocost: use spin_lock_irqsave in adjust_inuse_and_calc_cost
2023-07-23 13:46:44 +02:00
certs
certs/blacklist_hashes.c: fix const confusion in certs blacklist
2022-06-22 14:22:01 +02:00
crypto
KEYS: asymmetric: Copy sig and digest in public_key_verify_signature()
2023-06-09 10:32:34 +02:00
Documentation
Remove DECnet support from kernel
2023-06-21 15:59:15 +02:00
drivers
pinctrl: cherryview: Return correct value if pin in push-pull mode
2023-07-23 13:47:12 +02:00
fs
ovl: update of dentry revalidate flags after copy up
2023-07-23 13:47:10 +02:00
include
PCI: Add pci_clear_master() stub for non-CONFIG_PCI
2023-07-23 13:47:11 +02:00
init
kbuild: Add CONFIG_PAHOLE_VERSION
2023-02-25 12:06:45 +01:00
io_uring
io_uring/net: disable partial retries for recvmsg with cmsg
2023-06-28 10:29:44 +02:00
ipc
ipc/sem: Fix dangling sem_array access in semtimedop race
2022-12-08 11:28:45 +01:00
kernel
kcsan: Don't expect 64 bits atomic builtins from 32 bits architectures
2023-07-23 13:47:12 +02:00
lib
lib/ts_bm: reset initial match offset for every block of text
2023-07-23 13:46:56 +02:00
LICENSES
LICENSES/dual/CC-BY-4.0: Git rid of "smart quotes"
2021-07-15 06:31:24 -06:00
mm
mm, hwpoison: when copy-on-write hits poison, take page offline
2023-07-05 18:25:04 +01:00
net
netlink: Add __sock_i_ino() for __netlink_diag_dump().
2023-07-23 13:46:56 +02:00
samples
samples/bpf: Fix buffer overflow in tcp_basertt
2023-07-23 13:46:49 +02:00
scripts
scripts/tags.sh: Resolve gtags empty index generation
2023-07-05 18:25:05 +01:00
security
ima: Fix build warnings
2023-07-23 13:46:48 +02:00
sound
ASoC: imx-audmix: check return value of devm_kasprintf()
2023-07-23 13:47:10 +02:00
tools
perf dwarf-aux: Fix off-by-one in die_get_varname()
2023-07-23 13:47:12 +02:00
usr
usr/include/Makefile: add linux/nfc.h to the compile-test coverage
2022-02-01 17:27:15 +01:00
virt
KVM: Avoid illegal stage2 mapping on invalid memory slot
2023-06-28 10:29:42 +02:00
.clang-format
clang-format: Update with the latest for_each macro list
2021-05-12 23:32:39 +02:00
.cocciconfig
…
.get_maintainer.ignore
Opt out of scripts/get_maintainer.pl
2019-05-16 10:53:40 -07:00
.gitattributes
.gitattributes: use 'dts' diff driver for dts files
2019-12-04 19:44:11 -08:00
.gitignore
.gitignore: ignore only top-level modules.builtin
2021-05-02 00:43:35 +09:00
.mailmap
mailmap: add Andrej Shadura
2021-10-18 20:22:03 -10:00
COPYING
COPYING: state that all contributions really are covered by this file
2020-02-10 13:32:20 -08:00
CREDITS
MAINTAINERS: Move Daniel Drake to credits
2021-09-21 08:34:58 +03:00
Kbuild
kbuild: rename hostprogs-y/always to hostprogs/always-y
2020-02-04 01:53:07 +09:00
Kconfig
kbuild: ensure full rebuild when the compiler is updated
2020-05-12 13:28:33 +09:00
MAINTAINERS
Remove DECnet support from kernel
2023-06-21 15:59:15 +02:00
Makefile
Linux 5.15.120
2023-07-05 18:25:05 +01:00
README
Drop all 00-INDEX files from Documentation/
2018-09-09 15:08:58 -06:00

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.
Description
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