CVE-2021-47485

Published: May 22, 2024Modified: Aug 4, 2026

7.8

Vector

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

Exploitability: 1.8 / Impact: 5.9

Source: NVD

Description

In the Linux kernel, the following vulnerability has been resolved: IB/qib: Protect from buffer overflow in struct qib_user_sdma_pkt fields Overflowing either addrlimit or bytes_togo can allow userspace to trigger a buffer overflow of kernel memory. Check for overflows in all the places doing math on user controlled buffers.

Affected (14)

Products: Linux: Linux Kernel

1 product

Configuration A

14 vulnerable

Vulnerable Software	Affected Versions
Linux Linux Kernel	2.6.35 ≤ version < 4.4.292
Linux Linux Kernel	4.10 ≤ version < 4.14.255
Linux Linux Kernel	4.15 ≤ version < 4.19.216
Linux Linux Kernel	4.20 ≤ version < 5.4.157
Linux Linux Kernel	4.5 ≤ version < 4.9.290
Linux Linux Kernel	5.11 ≤ version < 5.14.16
Linux Linux Kernel	5.5 ≤ version < 5.10.77
Linux Linux Kernel	Version 5.15 rc1
Linux Linux Kernel	Version 5.15 rc2
Linux Linux Kernel	Version 5.15 rc3
Linux Linux Kernel	Version 5.15 rc4
Linux Linux Kernel	Version 5.15 rc5
Linux Linux Kernel	Version 5.15 rc6
Linux Linux Kernel	Version 5.15 rc7

Related CWEs

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow.

References (16)

https://git.kernel.org/stable/c/0d4395477741608d123dad51def9fe50b7ebe952

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

https://git.kernel.org/stable/c/0f8cdfff06829a0b0348b6debc29ff6a61967724

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

https://git.kernel.org/stable/c/3f57c3f67fd93b4da86aeffea1ca32c484d054ad

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

https://git.kernel.org/stable/c/60833707b968d5ae02a75edb7886dcd4a957cf0d

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

https://git.kernel.org/stable/c/73d2892148aa4397a885b4f4afcfc5b27a325c42

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

https://git.kernel.org/stable/c/bda41654b6e0c125a624ca35d6d20beb8015b5d0

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

https://git.kernel.org/stable/c/c3e17e58f571f34c51aeb17274ed02c2ed5cf780

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

https://git.kernel.org/stable/c/d39bf40e55e666b5905fdbd46a0dced030ce87be

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Patch

https://git.kernel.org/stable/c/0d4395477741608d123dad51def9fe50b7ebe952

Source: af854a3a-2127-422b-91ae-364da2661108

Patch

https://git.kernel.org/stable/c/0f8cdfff06829a0b0348b6debc29ff6a61967724

Source: af854a3a-2127-422b-91ae-364da2661108

Patch

https://git.kernel.org/stable/c/3f57c3f67fd93b4da86aeffea1ca32c484d054ad

Source: af854a3a-2127-422b-91ae-364da2661108

Patch

https://git.kernel.org/stable/c/60833707b968d5ae02a75edb7886dcd4a957cf0d

Source: af854a3a-2127-422b-91ae-364da2661108

Patch

https://git.kernel.org/stable/c/73d2892148aa4397a885b4f4afcfc5b27a325c42

Source: af854a3a-2127-422b-91ae-364da2661108

Patch

https://git.kernel.org/stable/c/bda41654b6e0c125a624ca35d6d20beb8015b5d0

Source: af854a3a-2127-422b-91ae-364da2661108

Patch

https://git.kernel.org/stable/c/c3e17e58f571f34c51aeb17274ed02c2ed5cf780

Source: af854a3a-2127-422b-91ae-364da2661108

Patch

https://git.kernel.org/stable/c/d39bf40e55e666b5905fdbd46a0dced030ce87be

Source: af854a3a-2127-422b-91ae-364da2661108

Patch

Timeline

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