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Lorenzo Stoakes 46a7cdcf06 selftests/memfd: add test for mapping write-sealed memfd read-only 
[ Upstream commit ea0916e01d ]

Now we have reinstated the ability to map F_SEAL_WRITE mappings read-only,
assert that we are able to do this in a test to ensure that we do not
regress this again.

Link: https://lkml.kernel.org/r/a6377ec470b14c0539b4600cf8fa24bf2e4858ae.1732804776.git.lorenzo.stoakes@oracle.com
Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Jann Horn <jannh@google.com>
Cc: Julian Orth <ju.orth@gmail.com>
Cc: Liam R. Howlett <Liam.Howlett@Oracle.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: stable@vger.kernel.org
Signed-off-by: Isaac J. Manjarres <isaacmanjarres@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-08-28 16:24:30 +02:00
arch lib/crypto: mips/chacha: Fix clang build and remove unneeded byteswap 2025-08-28 16:24:27 +02:00
block block: avoid possible overflow for chunk_sectors check in blk_stack_limits() 2025-08-28 16:24:25 +02:00
certs
crypto crypto: xts - Only add ecb if it is not already there 2025-06-27 11:05:10 +01:00
Documentation Documentation: ACPI: Fix parent device references 2025-08-28 16:24:15 +02:00
drivers drm/amd/display: Don't overwrite dce60_clk_mgr 2025-08-28 16:24:29 +02:00
fs mm: update memfd seal write check to include F_SEAL_WRITE 2025-08-28 16:24:30 +02:00
include mm: reinstate ability to map write-sealed memfd mappings read-only 2025-08-28 16:24:30 +02:00
init sched/isolation: Make CONFIG_CPU_ISOLATION depend on CONFIG_SMP 2025-05-02 07:44:36 +02:00
io_uring io_uring: fix possible deadlock in io_register_iowq_max_workers() 2024-11-17 15:06:25 +01:00
ipc ipc: fix to protect IPCS lookups using RCU 2025-06-27 11:05:26 +01:00
kernel mm: drop the assumption that VM_SHARED always implies writable 2025-08-28 16:24:30 +02:00
lib lib: bitmap: Introduce node-aware alloc API 2025-08-28 16:24:02 +02:00
LICENSES
mm mm: reinstate ability to map write-sealed memfd mappings read-only 2025-08-28 16:24:30 +02:00
net sch_qfq: make qfq_qlen_notify() idempotent 2025-08-28 16:24:30 +02:00
samples samples: mei: Fix building on musl libc 2025-08-28 16:24:07 +02:00
scripts kconfig: lxdialog: fix 'space' to (de)select options 2025-08-28 16:24:25 +02:00
security securityfs: don't pin dentries twice, once is enough... 2025-08-28 16:24:17 +02:00
sound ASoC: fsl_sai: replace regmap_write with regmap_update_bits 2025-08-28 16:24:26 +02:00
tools selftests/memfd: add test for mapping write-sealed memfd read-only 2025-08-28 16:24:30 +02:00
usr kbuild: hdrcheck: fix cross build with clang 2025-06-27 11:05:22 +01:00
virt KVM: Fix a data race on last_boosted_vcpu in kvm_vcpu_on_spin() 2024-10-22 15:40:41 +02:00
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore Remove *.orig pattern from .gitignore 2024-10-17 15:11:10 +02:00
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS trace: Relocate event helper files 2024-04-10 16:19:24 +02:00
Makefile Linux 5.15.189 2025-07-17 18:30:55 +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.