CVE-2021-47359

MEDIUM

Linux Kernel < 5.14 - Denial of Service via Improper Locking in CIFS

Title source: llm

Description

In the Linux kernel, the following vulnerability has been resolved: cifs: Fix soft lockup during fsstress Below traces are observed during fsstress and system got hung. [ 130.698396] watchdog: BUG: soft lockup - CPU#6 stuck for 26s!

References (2)

Core 2

Core References

Patch

https://git.kernel.org/stable/c/9f6c7aff21f81ae8856da1f63847d1362d523409

Patch

https://git.kernel.org/stable/c/71826b068884050d5fdd37fda857ba1539c513d3

Scores

CVSS v3 5.5

EPSS 0.0016

EPSS Percentile 5.3%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-667

Status published

Products (10)

Linux/Linux < 5.14

Linux/Linux 0ca6ac8a2691762307beaa4841255d1cfe6b2684

Linux/Linux 5.13.12 - 5.14

Linux/Linux 5.14

Linux/Linux 5.14.9 - 5.14.*

Linux/Linux 5.15

Linux/Linux 9e992755be8f2d458a0bcbefd19e493483c1dba2 - 71826b068884050d5fdd37fda857ba1539c513d3

Linux/Linux 9e992755be8f2d458a0bcbefd19e493483c1dba2 - 9f6c7aff21f81ae8856da1f63847d1362d523409

linux/linux_kernel 5.15 rc1 (2 CPE variants)

linux/linux_kernel < 5.14.9

Published May 21, 2024

Tracked Since Feb 18, 2026