kernel: Allocate fake struct on heap#3081
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task_struct is 4736 bytes long.
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Pull request overview
This PR addresses a stack allocation issue by moving a large task_struct (4736 bytes) from stack to heap allocation in the disable_seccomp() function. This is a good practice to avoid potential stack overflow issues with such large structures.
- Replaced stack allocation of
task_struct fakewith heap allocation usingkmalloc - Added error handling for allocation failure with early return
- Updated all references from struct member access (
.) to pointer member access (->)
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larpedd
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Dec 20, 2025
task_struct is typically 4000+ bytes long.
KOWX712
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Dec 21, 2025
task_struct is typically 4000+ bytes long.
u9521
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Jan 5, 2026
task_struct is typically 4000+ bytes long.
u9521
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Jan 5, 2026
task_struct is typically 4000+ bytes long.
u9521
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Jan 8, 2026
task_struct is typically 4000+ bytes long.
u9521
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Jan 13, 2026
task_struct is typically 4000+ bytes long.
LeCmnGend
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Feb 23, 2026
task_struct is typically 4000+ bytes long.
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task_struct is 4736 bytes long.