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Fixed

LIN1018-5749 : WRL8:Use-after-free reads in show_numa_stats()

Created: Feb 20, 2020    Updated: Mar 26, 2020
Resolved Date: Mar 13, 2020
Found In Version: unknown
Fix Version: 10.18.44.15
Severity: Standard
Applicable for: Wind River Linux LTS 18
Component/s: Kernel

Description

"sched/fair: Use RCU accessors consistently for ->numa_group
 The old code used RCU annotations and accessors inconsistently for ->numa_group, which can lead to use-after-frees and NULL dereferences. Let all accesses to ->numa_group use proper RCU helpers to prevent such issues."
 upstream commit: [https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cb361d8cdef69990f6b4504dc1fd9a594d983c97]
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