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Linux Kernel proc_readdir_de() 6.18-rc5 - Local Privilege Escalation

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0
Severity
High

Rated by Threat Radar

Data as of 10 May 2026, 02:30 UTC

What to do

AI-suggested

Until an official fix is released, consider restricting local access to trusted users only and monitor for updates from the Linux Kernel maintainers.

Description

Linux Kernel proc_readdir_de() 6.18-rc5 - Local Privilege Escalation

Indicators of compromise

Exploit source code

Exploit code for Linux Kernel proc_readdir_de() 6.18-rc5 - Local Privilege EscalationC/C++ · 24,221 characters
 * Exploit Title:  Linux Kernel proc_readdir_de() 6.18-rc5 - Local Privilege Escalation
 * CVE:            CVE-2025-40271
 * Date:           2026-03-19
 * Exploit Author: Aviral Srivastava
 * Vendor:         Linux Kernel (kernel.org)
 * Affected:       ~3.14+ through 6.18-rc5 (bug predates version tracking)
 *                 Fixed in stable: 5.10.247, 6.1.159, 6.12.73, 6.18-rc6
 * Fixed in:       commit 895b4c0c79b092d732544011c3cecaf7322c36a1
 * Tested on:      Debian Bookworm (kernel 6.1.115-…

References

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