CVE-2024-56574

Published: Dic 27, 2024 Last Modified: Nov 03, 2025 EU-VD ID: EUVD-2024-53222
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 5,5
Source: [email protected]
Attack Vector: local
Attack Complexity: low
Privileges Required: low
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high

Description

AI Translation Available

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

media: ts2020: fix null-ptr-deref in ts2020_probe()

KASAN reported a null-ptr-deref issue when executing the following
command:

# echo ts2020 0x20 > /sys/bus/i2c/devices/i2c-0/new_device
KASAN: null-ptr-deref in range [0x0000000000000010-0x0000000000000017]
CPU: 53 UID: 0 PID: 970 Comm: systemd-udevd Not tainted 6.12.0-rc2+ #24
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009)
RIP: 0010:ts2020_probe+0xad/0xe10 [ts2020]
RSP: 0018:ffffc9000abbf598 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffffc0714809
RDX: 0000000000000002 RSI: ffff88811550be00 RDI: 0000000000000010
RBP: ffff888109868800 R08: 0000000000000001 R09: fffff52001577eb6
R10: 0000000000000000 R11: ffffc9000abbff50 R12: ffffffffc0714790
R13: 1ffff92001577eb8 R14: ffffffffc07190d0 R15: 0000000000000001
FS: 00007f95f13b98c0(0000) GS:ffff888149280000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555d2634b000 CR3: 0000000152236000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
ts2020_probe+0xad/0xe10 [ts2020]
i2c_device_probe+0x421/0xb40
really_probe+0x266/0x850
...

The cause of the problem is that when using sysfs to dynamically register
an i2c device, there is no platform data, but the probe process of ts2020
needs to use platform data, resulting in a null pointer being accessed.

Solve this problem by adding checks to platform data.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0005
Percentile
0,1th
Updated

EPSS Score Trend (Last 90 Days)

476

NULL Pointer Dereference

Stable
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Availability Integrity Confidentiality
Potential Impacts:
Dos: Crash, Exit, Or Restart Execute Unauthorized Code Or Commands Read Memory Modify Memory
Applicable Platforms
Languages: C, C#, C++, Go, Java
Likelihood of Exploit: Medium
View CWE Details
Operating System

Linux Kernel by Linux

Product Information
Vendor Linux
Product Linux Kernel
Version Range Affected
From 6.7 (inclusive)
To 6.12.4 (exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Linux Kernel by Linux

Product Information
Vendor Linux
Product Linux Kernel
Version Range Affected
From 5.16 (inclusive)
To 6.1.120 (exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Linux Kernel by Linux

Product Information
Vendor Linux
Product Linux Kernel
Version Range Affected
From 5.11 (inclusive)
To 5.15.174 (exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Linux Kernel by Linux

Product Information
Vendor Linux
Product Linux Kernel
Version Range Affected
From 4.1 (inclusive)
To 5.4.287 (exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Linux Kernel by Linux

Product Information
Vendor Linux
Product Linux Kernel
Version Range Affected
From 5.5 (inclusive)
To 5.10.231 (exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Operating System

Linux Kernel by Linux

Product Information
Vendor Linux
Product Linux Kernel
Version Range Affected
From 6.2 (inclusive)
To 6.6.64 (exclusive)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://git.kernel.org/stable/c/4a058b34b52ed3feb1f3ff6fd26…
https://git.kernel.org/stable/c/4a058b34b52ed3feb1f3ff6fd26aefeeeed20cba
https://git.kernel.org/stable/c/5a53f97cd5977911850b695add0…
https://git.kernel.org/stable/c/5a53f97cd5977911850b695add057f9965c1a2d6
https://git.kernel.org/stable/c/901070571bc191d1d8d7a1379bc…
https://git.kernel.org/stable/c/901070571bc191d1d8d7a1379bc5ba9446200999
https://git.kernel.org/stable/c/a2ed3b780f34e4a6403064208bc…
https://git.kernel.org/stable/c/a2ed3b780f34e4a6403064208bc2c99d1ed85026
https://git.kernel.org/stable/c/b6208d1567f929105011bcdfd73…
https://git.kernel.org/stable/c/b6208d1567f929105011bcdfd738f59a6bdc1088
https://git.kernel.org/stable/c/ced1c04e82e3ecc246b921b9733…
https://git.kernel.org/stable/c/ced1c04e82e3ecc246b921b9733f0df0866aa50d
https://git.kernel.org/stable/c/dc03866b5f4aa2668946f8384a1…
https://git.kernel.org/stable/c/dc03866b5f4aa2668946f8384a1e5286ae53bbaa
https://lists.debian.org/debian-lts-announce/2025/03/msg000…
https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
https://lists.debian.org/debian-lts-announce/2025/03/msg000…
https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html