Bug 2227244 (CVE-2023-4611) - CVE-2023-4611 kernel: Use after free race between mbind() and VMA-locked page fault
Summary: CVE-2023-4611 kernel: Use after free race between mbind() and VMA-locked page...
Keywords:
Status: NEW
Alias: CVE-2023-4611
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Nobody
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Depends On: 2227250 2227251
Blocks: 2227245
TreeView+ depends on / blocked
 
Reported: 2023-07-28 13:44 UTC by Pedro Sampaio
Modified: 2023-08-29 20:23 UTC (History)
46 users (show)

Fixed In Version: Kernel 6.5-rc4
Doc Type: If docs needed, set a value
Doc Text:
A use-after-free flaw was found in mm/mempolicy.c in the memory management subsystem in the Linux Kernel. This issue is caused by a race between mbind() and VMA-locked page fault, and may allow a local attacker to crash the system or lead to a kernel information leak.
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Description Pedro Sampaio 2023-07-28 13:44:36 UTC 
A use-after-free flaw was found in mm/mempolicy.c in memory management subsystem in the Linux Kernel. This problem is caused by a race between mbind() and VMA-locked page fault, where a local attacker may crash the system, this flaw could even lead to a kernel information leak threat.

Refer:
https://www.spinics.net/lists/stable-commits/msg310136.html
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