CVE-2026-72357
Received Received - Intake

Memory Corruption in Linux Kernel uprobes

Publication date: 2026-08-15

Last updated on: 2026-08-15

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: uprobes/x86: Use proper mm_struct in __in_uprobe_trampoline In the unregister path we use __in_uprobe_trampoline check with current->mm for the VMA lookup, which is wrong, because we are in the tracer context, not the traced process. Add mm_struct pointer argument to __in_uprobe_trampoline and changing related callers to pass proper mm_struct pointer.

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Meta Information

Published
2026-08-15
Last Modified
2026-08-15
Generated
2026-08-15
AI Q&A
2026-08-15
EPSS Evaluated
N/A
NVD
CVE-2026-72357
EUVD
EUVD-2026-59256

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *

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Exploitability

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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This is a Linux kernel vulnerability where the uprobes/x86 component incorrectly uses current->mm for VMA lookup during the unregister path. The issue occurs because the check in __in_uprobe_trampoline is performed in the tracer context rather than the traced process context, leading to improper memory management.

Detection Guidance

This vulnerability is specific to the Linux kernel's uprobes/x86 component and requires kernel-level detection. Check your kernel version against patched versions and review kernel logs for uprobe-related errors or crashes. Commands like 'uname -r' and 'dmesg | grep uprobe' may help identify affected systems.

Impact Analysis

This vulnerability could allow local attackers to cause a denial of service or potentially escalate privileges by exploiting the incorrect mm_struct usage in the uprobes subsystem.

Mitigation Strategies

Update your Linux kernel to the latest stable version that includes the fix for this vulnerability. Monitor kernel security advisories and apply patches promptly. If immediate patching is not possible, consider disabling uprobes functionality as a temporary workaround.

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