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Alex Williamson 6ec0d88166 vfio/fsl-mc: Block calling interrupt handler without trigger 
[ Upstream commit 7447d911af ]

The eventfd_ctx trigger pointer of the vfio_fsl_mc_irq object is
initially NULL and may become NULL if the user sets the trigger
eventfd to -1.  The interrupt handler itself is guaranteed that
trigger is always valid between request_irq() and free_irq(), but
the loopback testing mechanisms to invoke the handler function
need to test the trigger.  The triggering and setting ioctl paths
both make use of igate and are therefore mutually exclusive.

The vfio-fsl-mc driver does not make use of irqfds, nor does it
support any sort of masking operations, therefore unlike vfio-pci
and vfio-platform, the flow can remain essentially unchanged.

Cc: Diana Craciun <diana.craciun@oss.nxp.com>
Cc:  <stable@vger.kernel.org>
Fixes: cc0ee20bd9 ("vfio/fsl-mc: trigger an interrupt via eventfd")
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Link: https://lore.kernel.org/r/20240308230557.805580-8-alex.williamson@redhat.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2024-04-03 15:32:19 +02:00
Documentation docs: Makefile: Add dependency to $(YNL_INDEX) for targets other than htmldocs 2024-04-03 15:32:13 +02:00
LICENSES LICENSES: Add the copyleft-next-0.3.1 license 2022-11-08 15:44:01 +01:00
arch sparc32: Fix parport build with sparc32 2024-04-03 15:32:17 +02:00
block block: Fix page refcounts for unaligned buffers in __bio_release_pages() 2024-04-03 15:32:14 +02:00
certs This update includes the following changes: 2023-11-02 16:15:30 -10:00
crypto crypto: jitter - fix CRYPTO_JITTERENTROPY help text 2024-03-26 18:17:12 -04:00
drivers vfio/fsl-mc: Block calling interrupt handler without trigger 2024-04-03 15:32:19 +02:00
fs cifs: allow changing password during remount 2024-04-03 15:32:18 +02:00
include nfs: fix UAF in direct writes 2024-04-03 15:32:17 +02:00
init modules: wait do_free_init correctly 2024-03-26 18:17:17 -04:00
io_uring io_uring: fix mshot io-wq checks 2024-04-03 15:32:17 +02:00
ipc shm: Slim down dependencies 2023-12-20 19:26:31 -05:00
kernel serial: Lock console when calling into driver before registration 2024-04-03 15:32:12 +02:00
lib pci_iounmap(): Fix MMIO mapping leak 2024-04-03 15:32:02 +02:00
mm mm: swap: fix race between free_swap_and_cache() and swapoff() 2024-04-03 15:32:15 +02:00
net mac802154: fix llsec key resources release in mac802154_llsec_key_del 2024-04-03 15:32:15 +02:00
rust Rust changes for v6.8 2024-01-11 13:05:41 -08:00
samples work around gcc bugs with 'asm goto' with outputs 2024-02-09 15:57:48 -08:00
scripts kbuild: Move -Wenum-{compare-conditional,enum-conversion} into W=1 2024-04-03 15:32:18 +02:00
security landlock: Warn once if a Landlock action is requested while disabled 2024-04-03 15:32:15 +02:00
sound ASoC: SOF: amd: Skip IRAM/DRAM size modification for Steam Deck OLED 2024-03-26 18:17:34 -04:00
tools selftests/mqueue: Set timeout to 180 seconds 2024-04-03 15:32:05 +02:00
usr Kbuild updates for v6.8 2024-01-18 17:57:07 -08:00
virt KVM: Always flush async #PF workqueue when vCPU is being destroyed 2024-04-03 15:32:03 +02:00
.clang-format clang-format: Update with v6.7-rc4's `for_each` macro list 2023-12-08 23:54:38 +01:00
.cocciconfig
…
.editorconfig Add .editorconfig file for basic formatting 2023-12-28 16:22:47 +09:00
.get_maintainer.ignore
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.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore Add .editorconfig file for basic formatting 2023-12-28 16:22:47 +09:00
.mailmap drm fixes for 6.8 final 2024-03-08 12:44:56 -08:00
.rustfmt.toml
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COPYING
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CREDITS MAINTAINERS: supplement of zswap maintainers update 2024-01-25 23:52:21 -08:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig
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MAINTAINERS drm fixes for 6.8 final 2024-03-08 12:44:56 -08:00
Makefile Linux 6.8.2 2024-03-26 18:23:34 -04:00
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.