---
cve: "CVE-2026-64371"
severity: "LOW"
cvss: 3.1
epss: "18%"
vendor: "Linux"
kev: false
exploited: false
published: "2026-07-25 10:17:20"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-10T22:36:34+02:00"
---

# CVE-2026-64371

> 3.1 LOW

## Beschreibung

In the Linux kernel, the following vulnerability has been resolved:

proc: protect ptrace_may_access() with exec_update_lock (part 1)

Fix the easy cases where procfs currently calls ptrace_may_access() without
exec_update_lock protection, where the fix is to simply add the extra lock
or use mm_access():

 - do_task_stat(): grab exec_update_lock
 - proc_pid_wchan(): grab exec_update_lock
 - proc_map_files_lookup(): use mm_access() instead of get_task_mm()
 - proc_map_files_readdir(): use mm_access() instead of get_task_mm()
 - proc_ns_get_link(): grab exec_update_lock
 - proc_ns_readlink(): grab exec_update_lock

## Patch verfügbar (OSV)

- Kernel ≥ 5.10.261
- Kernel ≥ 5.15.212
- Kernel ≥ 6.1.178
- Kernel ≥ 6.6.145
- Kernel ≥ 6.12.97
- Kernel ≥ 6.18.40
- Kernel ≥ 7.1.4

## Referenzen

- <https://git.kernel.org/stable/c/ae1e630bcaac739f625822078edbaea98366930d>
- <https://git.kernel.org/stable/c/d54f14655fd7d7b293698a8b6918563c4c0465e7>
- <https://git.kernel.org/stable/c/bb43679356f1f2a4c6b1c88aec4f021e5b5c74e9>
- <https://git.kernel.org/stable/c/7456ae990a9738962b33146916fabca62ae3d4e0>
- <https://git.kernel.org/stable/c/4bfe8c481846cee52473a2f7d7b30ee8e6749fc4>
- <https://git.kernel.org/stable/c/f9b4b03ccc9c69bf7f7298d4559906ebea7143b3>
- <https://git.kernel.org/stable/c/c1cfd63326f5d09999134e9052c353faf738286e>
- <https://git.kernel.org/stable/c/6650527444dadc63d84aa939d14ecba4fadb2f69>
- <https://cert-portal.siemens.com/productcert/html/ssa-019113.html>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-64371) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_