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Catalin Marinas 488b5b9eca mm: kmemleak: fix upper boundary check for physical address objects 
Memblock allocations are registered by kmemleak separately, based on their
physical address.  During the scanning stage, it checks whether an object
is within the min_low_pfn and max_low_pfn boundaries and ignores it
otherwise.

With the recent addition of __percpu pointer leak detection (commit
6c99d4eb7c ("kmemleak: enable tracking for percpu pointers")), kmemleak
started reporting leaks in setup_zone_pageset() and
setup_per_cpu_pageset().  These were caused by the node_data[0] object
(initialised in alloc_node_data()) ending on the PFN_PHYS(max_low_pfn)
boundary.  The non-strict upper boundary check introduced by commit
84c3262991 ("mm: kmemleak: check physical address when scan") causes the
pg_data_t object to be ignored (not scanned) and the __percpu pointers it
contains to be reported as leaks.

Make the max_low_pfn upper boundary check strict when deciding whether to
ignore a physical address object and not scan it.

Link: https://lkml.kernel.org/r/20250127184233.2974311-1-catalin.marinas@arm.com
Fixes: 84c3262991 ("mm: kmemleak: check physical address when scan")
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Reported-by: Jakub Kicinski <kuba@kernel.org>
Tested-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Cc: Patrick Wang <patrick.wang.shcn@gmail.com>
Cc: <stable@vger.kernel.org>	[6.0.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-02-01 03:53:25 -08:00
arch s390 fixes for 6.14 merge window 2025-01-30 10:53:49 -08:00
block Driver core and debugfs updates 2025-01-28 12:25:12 -08:00
certs sign-file,extract-cert: use pkcs11 provider for OPENSSL MAJOR >= 3 2024-09-20 19:52:48 +03:00
crypto treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
Documentation Two fixes for footnote-related warnings that appeared with Sphinx 8.x. 2025-01-30 10:57:19 -08:00
drivers more s390 updates for 6.14 merge window 2025-01-30 10:48:17 -08:00
fs ocfs2: fix incorrect CPU endianness conversion causing mount failure 2025-02-01 03:53:24 -08:00
include mm/vmscan: fix hard LOCKUP in function isolate_lru_folios 2025-02-01 03:53:23 -08:00
init treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
io_uring treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
ipc treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
kernel Summary: 2025-01-29 10:35:40 -08:00
lib CRC fixes for 6.14 2025-01-29 10:50:28 -08:00
LICENSES LICENSES: add 0BSD license text 2024-09-01 20:43:24 -07:00
mm mm: kmemleak: fix upper boundary check for physical address objects 2025-02-01 03:53:25 -08:00
net NFS Client Updates for Linux 6.14 2025-01-28 14:23:46 -08:00
rust Driver core and debugfs updates 2025-01-28 12:25:12 -08:00
samples Driver core and debugfs updates 2025-01-28 12:25:12 -08:00
scripts scripts/gdb: fix aarch64 userspace detection in get_current_task 2025-02-01 03:53:24 -08:00
security treewide: const qualify ctl_tables where applicable 2025-01-28 13:48:37 +01:00
sound Driver core and debugfs updates 2025-01-28 12:25:12 -08:00
tools gpio fixes for v6.14-rc1 2025-01-30 10:19:30 -08:00
usr kbuild: Drop support for include/asm-<arch> in headers_check.pl 2024-12-21 11:43:17 +09:00
virt Merge branch 'kvm-mirror-page-tables' into HEAD 2025-01-20 07:15:58 -05:00
.clang-format clang-format: Update with v6.11-rc1's for_each macro list 2024-08-02 13:20:31 +02:00
.clippy.toml rust: give Clippy the minimum supported Rust version 2025-01-10 00:17:25 +01:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.editorconfig .editorconfig: remove trim_trailing_whitespace option 2024-06-13 16:47:52 +02:00
.get_maintainer.ignore MAINTAINERS: Retire Ralf Baechle 2024-11-12 15:48:59 +01:00
.gitattributes .gitattributes: set diff driver for Rust source code files 2023-05-31 17:48:25 +02:00
.gitignore rust: use host dylib naming convention to support macOS 2025-01-10 01:01:24 +01:00
.mailmap mailmap: add an entry for Hamza Mahfooz 2025-02-01 03:53:24 -08:00
.rustfmt.toml rust: add .rustfmt.toml 2022-09-28 09:02:20 +02:00
COPYING COPYING: state that all contributions really are covered by this file 2020-02-10 13:32:20 -08:00
CREDITS Mainly individually changelogged singleton patches. The patch series in 2025-01-26 17:50:53 -08:00
Kbuild Kbuild updates for v6.1 2022-10-10 12:00:45 -07:00
Kconfig kbuild: ensure full rebuild when the compiler is updated 2020-05-12 13:28:33 +09:00
MAINTAINERS MAINTAINERS: mailmap: update Yosry Ahmed's email address 2025-02-01 03:53:24 -08:00
Makefile Networking changes for 6.14. 2025-01-22 08:28:57 -08:00
README README: Fix spelling 2024-03-18 03:36:32 -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 reStructuredText 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.