CVE-2023-52615

MEDIUM

Linux Kernel 2.6.33-4.19.307 - Denial of Service via Recursive Page Fault in HWRNG Read Path

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: hwrng: core - Fix page fault dead lock on mmap-ed hwrng There is a dead-lock in the hwrng device read path. This triggers when the user reads from /dev/hwrng into memory also mmap-ed from /dev/hwrng. The resulting page fault triggers a recursive read which then dead-locks. Fix this by using a stack buffer when calling copy_to_user.

References (10)

Core 10

Scores

CVSS v3 5.5
EPSS 0.0019
EPSS Percentile 9.4%
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 (26)
linux/Kernel 2.6.33 - 4.19.307linux
linux/Kernel 4.20.0 - 5.4.269linux
linux/Kernel 5.11.0 - 5.15.149linux
linux/Kernel 5.16.0 - 6.1.76linux
linux/Kernel 5.5.0 - 5.10.210linux
linux/Kernel 6.2.0 - 6.6.15linux
linux/Kernel 6.7.0 - 6.7.3linux
Linux/Linux < 2.6.33
Linux/Linux 2.6.33
Linux/Linux 4.19.307 - 4.19.*
... and 16 more
Published Mar 18, 2024
Tracked Since Feb 18, 2026