CVE-2021-47039

HIGH

Linux Kernel 5.11-5.11.20 - Out-of-bounds Read in ataflop do_format()

Title source: llm

Description

In the Linux kernel, the following vulnerability has been resolved: ataflop: potential out of bounds in do_format() The function uses "type" as an array index: q = unit[drive].disk[type]->queue; Unfortunately the bounds check on "type" isn't done until later in the function. Fix this by moving the bounds check to the start.

References (3)

Core 3

Core References

Patch

https://git.kernel.org/stable/c/07f86aa8f4fe077be1b018cc177eb8c6573e5671

Patch

https://git.kernel.org/stable/c/2a3a8bbca28b899806844c00d49ed1b7ccb50957

Patch

https://git.kernel.org/stable/c/1ffec389a6431782a8a28805830b6fae9bf00af1

Scores

CVSS v3 7.1

EPSS 0.0024

EPSS Percentile 15.6%

Attack Vector LOCAL

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-125

Status published

Products (9)

Linux/Linux < 5.11

Linux/Linux 5.11

Linux/Linux 5.11.21 - 5.11.*

Linux/Linux 5.12.4 - 5.12.*

Linux/Linux 5.13

Linux/Linux bf9c0538e485b591a2ee02d9adb8a99db4be5a2a - 07f86aa8f4fe077be1b018cc177eb8c6573e5671

Linux/Linux bf9c0538e485b591a2ee02d9adb8a99db4be5a2a - 1ffec389a6431782a8a28805830b6fae9bf00af1

Linux/Linux bf9c0538e485b591a2ee02d9adb8a99db4be5a2a - 2a3a8bbca28b899806844c00d49ed1b7ccb50957

linux/linux_kernel 5.11 - 5.11.21

Published Feb 28, 2024

Tracked Since Feb 18, 2026