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linux-kernelorg-stable/security/tomoyo
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Simon Schuster edd3cb05c0 copy_process: pass clone_flags as u64 across calltree 
With the introduction of clone3 in commit 7f192e3cd3 ("fork: add
clone3") the effective bit width of clone_flags on all architectures was
increased from 32-bit to 64-bit, with a new type of u64 for the flags.
However, for most consumers of clone_flags the interface was not
changed from the previous type of unsigned long.

While this works fine as long as none of the new 64-bit flag bits
(CLONE_CLEAR_SIGHAND and CLONE_INTO_CGROUP) are evaluated, this is still
undesirable in terms of the principle of least surprise.

Thus, this commit fixes all relevant interfaces of callees to
sys_clone3/copy_process (excluding the architecture-specific
copy_thread) to consistently pass clone_flags as u64, so that
no truncation to 32-bit integers occurs on 32-bit architectures.

Signed-off-by: Simon Schuster <schuster.simon@siemens-energy.com>
Link: https://lore.kernel.org/20250901-nios2-implement-clone3-v2-2-53fcf5577d57@siemens-energy.com
Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Christian Brauner <brauner@kernel.org>
 		2025-09-01 15:31:34 +02:00
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policy
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.gitignore
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Kconfig tomoyo: revert CONFIG_SECURITY_TOMOYO_LKM support 2024-10-04 11:41:22 -04:00
Makefile tomoyo: revert CONFIG_SECURITY_TOMOYO_LKM support 2024-10-04 11:41:22 -04:00
audit.c tomoyo: replace tomoyo_round2() with kmalloc_size_roundup() 2023-03-01 23:46:12 +09:00
common.c tomoyo: use better patterns for procfs in learning mode 2025-01-31 00:27:44 +09:00
common.h tomoyo: revert CONFIG_SECURITY_TOMOYO_LKM support 2024-10-04 11:41:22 -04:00
condition.c
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domain.c tomoyo: fix spelling error 2025-01-26 19:11:56 +09:00
environ.c
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file.c
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gc.c tomoyo: revert CONFIG_SECURITY_TOMOYO_LKM support 2024-10-04 11:41:22 -04:00
group.c
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load_policy.c tomoyo: revert CONFIG_SECURITY_TOMOYO_LKM support 2024-10-04 11:41:22 -04:00
memory.c
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mount.c
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network.c
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realpath.c
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securityfs_if.c tomoyo: fix spelling errors 2025-01-26 19:13:58 +09:00
tomoyo.c copy_process: pass clone_flags as u64 across calltree 2025-09-01 15:31:34 +02:00
util.c tomoyo: revert CONFIG_SECURITY_TOMOYO_LKM support 2024-10-04 11:41:22 -04:00