---
cve: "CVE-2026-53327"
severity: "LOW"
cvss: 3.1
epss: "13%"
vendor: "Linux"
kev: false
exploited: false
published: "2026-07-01 14:16:40"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-16T07:12:14+02:00"
---

# CVE-2026-53327

> 3.1 LOW

## Beschreibung

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

debugobjects: Do not fill_pool() if pi_blocked_on

On RT enabled kernels, fill_pool() ends up calling rtlock_lock(), which
asserts if current::pi_blocked_on is set, because a task can obviously only
block on one lock as otherwise the priority inheritenace chain gets
corrupted.

Prevent this by expanding the conditional to take current::pi_blocked_on
into account.

## Patch verfügbar (OSV)

- Kernel ≥ 6.1.177
- Kernel ≥ 6.6.144
- Kernel ≥ 6.12.95
- Kernel ≥ 6.18.37
- Kernel ≥ 7.0.13

## Referenzen

- <https://git.kernel.org/stable/c/8a680d54f1adf3e3aa815578684556716fda6f0c>
- <https://git.kernel.org/stable/c/a3383df76f0d7a597066df018409eb9e5e698064>
- <https://git.kernel.org/stable/c/3f6a3b24ab7b9d51f6f4778254bef0e5847beb55>
- <https://git.kernel.org/stable/c/3a408cae608d9c075dd3a9e5cfc03b3cb0726863>
- <https://git.kernel.org/stable/c/33bee10644f8fff3b1a0187ad5ad34513e5e8e72>
- <https://git.kernel.org/stable/c/5f41161059fd0f1bbf18c90f3180e38cc45a14eb>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-53327) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_