NVD / CVE Program· CNA Linux

CVE-2024-56574: media: ts2020: fix null-ptr-deref in ts2020_probe()

Noroxi assessment

Priority: Monitor (action score 22/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 0.24% (FIRST EPSS).
Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
Fixed version: Linux Linux 4a058b34b52ed3feb1f3ff6fd26aefeeeed20cba, 5a53f97cd5977911850b695add057f9965c1a2d6, 901070571bc191d1d8d7a1379bc5ba9446200999; azl3 kernel 6.6.57.1-7 on Azure Linux 3.0 6.6.64.2-1; azl3 kernel 6.6.64.2-1 on Azure Linux 3.0 6.6.64.2-1.

Low priority for now. Upgrade to Linux Linux 4a058b34b52ed3feb1f3ff6fd26aefeeeed20cba, 5a53f97cd5977911850b695add057f9965c1a2d6, 901070571bc191d1d8d7a1379bc5ba9446200999; azl3 kernel 6.6.57.1-7 on Azure Linux 3.0 6.6.64.2-1; azl3 kernel 6.6.64.2-1 on Azure Linux 3.0 6.6.64.2-1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

MediumCVSS 5.5 · v3.1—No exploit Fix available

Published: Dec 27, 2024
Updated: Jun 17, 2026
EPSS: 0.2% · 15th percentile
CWE: CWE-476

Report tools

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Action score

Monitor

Low priority for now.

CVSS: 22 / 40 · 5.5 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.2%

CISA SSVC decision

Exploitation: none
Automatable: no
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
No public exploit code on record
A fix has been released

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
linux	linux kernel	cpe:2.3:o:linux:linux_kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

linux linux kernel4.1 and later · before 5.4.287
linux linux kernel5.5 and later · before 5.10.231
linux linux kernel5.11 and later · before 5.15.174
linux linux kernel5.16 and later · before 6.1.120
linux linux kernel6.2 and later · before 6.6.64
linux linux kernel6.7 and later · before 6.12.4

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

Linux Linux
- 4.1affected
- dc245a5f9b5163511e0c164c8aa47848f07b75a9 and later · before ced1c04e82e3ecc246b921b9733f0df0866aa50daffected · git
- dc245a5f9b5163511e0c164c8aa47848f07b75a9 and later · before 5a53f97cd5977911850b695add057f9965c1a2d6affected · git
- dc245a5f9b5163511e0c164c8aa47848f07b75a9 and later · before b6208d1567f929105011bcdfd738f59a6bdc1088affected · git
- dc245a5f9b5163511e0c164c8aa47848f07b75a9 and later · before dc03866b5f4aa2668946f8384a1e5286ae53bbaaaffected · git
- dc245a5f9b5163511e0c164c8aa47848f07b75a9 and later · before a2ed3b780f34e4a6403064208bc2c99d1ed85026affected · git
- dc245a5f9b5163511e0c164c8aa47848f07b75a9 and later · before 901070571bc191d1d8d7a1379bc5ba9446200999affected · git
- dc245a5f9b5163511e0c164c8aa47848f07b75a9 and later · before 4a058b34b52ed3feb1f3ff6fd26aefeeeed20cbaaffected · git
- before 4.1not affected · semver
- 5.4.287 and later · up to and including 5.4.*not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Ecosystem	Package	Affected range	Fix
Debian:12	linux	before 6.1.123-1	6.1.123-1
Debian:13	linux	before 6.12.5-1	6.12.5-1
SUSE:Linux Enterprise Live Patching 12 SP5	kernel-default	before 4.12.14-122.247.1	4.12.14-122.247.1
SUSE:Linux Enterprise Live Patching 12 SP5	kgraft-patch-SLE12-SP5_Update_65	before 1-8.3.1	1-8.3.1
SUSE:Linux Enterprise Server 12 SP5-LTSS	kernel-source	before 4.12.14-122.247.1	4.12.14-122.247.1
SUSE:Linux Enterprise Server 12 SP5-LTSS	kernel-syms	before 4.12.14-122.247.1	4.12.14-122.247.1

Same product

linux: all records

Other highest-scoring records for the same primary product.

CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
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CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
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CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
85Now

Published before and after this one in the same product

← EarlierCVE-2024-56572Dec 27, 2024 · media: platform: allegro-dvt: Fix possible memory leak in allocate_buffers_internal()
22Monitor
← EarlierCVE-2024-56573Dec 27, 2024 · efi/libstub: Free correct pointer on failure
22Monitor
Later →CVE-2024-56575Dec 27, 2024 · media: imx-jpeg: Ensure power suppliers be suspended before detach them
22Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
Linux Linux	4a058b34b52ed3feb1f3ff6fd26aefeeeed20cba	Vendor (CNA)
Linux Linux	5a53f97cd5977911850b695add057f9965c1a2d6	Vendor (CNA)
Linux Linux	901070571bc191d1d8d7a1379bc5ba9446200999	Vendor (CNA)
Linux Linux	a2ed3b780f34e4a6403064208bc2c99d1ed85026	Vendor (CNA)
Linux Linux	b6208d1567f929105011bcdfd738f59a6bdc1088	Vendor (CNA)
Linux Linux	ced1c04e82e3ecc246b921b9733f0df0866aa50d	Vendor (CNA)
Linux Linux	dc03866b5f4aa2668946f8384a1e5286ae53bbaa	Vendor (CNA)
azl3 kernel 6.6.57.1-7 on Azure Linux 3.0	6.6.64.2-1 · CBL-Mariner Releases	Microsoft (MSRC)
azl3 kernel 6.6.64.2-1 on Azure Linux 3.0	6.6.64.2-1 · CBL-Mariner Releases	Microsoft (MSRC)
cbl2 kernel 5.15.173.1-2 on CBL Mariner 2.0	5.15.176.3-1 · CBL-Mariner Releases	Microsoft (MSRC)
cbl2 kernel 5.15.173.1-2 on CBL-Mariner 2.0	5.15.176.3-1 · CBL-Mariner Releases	Microsoft (MSRC)
cbl2 kernel 5.15.176.3-1 on CBL Mariner 2.0	5.15.176.3-1 · CBL-Mariner Releases	Microsoft (MSRC)
debian:linux	6.1.123-1 · Debian:12	Package registry (OSV)
suse:kernel-default	4.12.14-122.247.1 · SUSE:Linux Enterprise Live Patching 12 SP5	Package registry (OSV)
suse:kernel-source	4.12.14-122.247.1 · SUSE:Linux Enterprise Server 12 SP5-LTSS	Package registry (OSV)
suse:kernel-syms	4.12.14-122.247.1 · SUSE:Linux Enterprise Server 12 SP5-LTSS	Package registry (OSV)
suse:kgraft-patch-SLE12-SP5_Update_65	1-8.3.1 · SUSE:Linux Enterprise Live Patching 12 SP5	Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

Someone with local access to the system can trigger it.
A low-privileged account is enough.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: none
Integrity: none
Availability: high · the service can be disrupted

Attack vector: Local
Attack complexity: Low
Privileges required: Low
User interaction: None
Scope: Unchanged
Confidentiality impact: None
Integrity impact: None
Availability impact: High

Weakness class (CWE)

CWE-476 · NULL Pointer Dereference

CVSS vector

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

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

Fix✗ → ✓Sep 28, 2026, 10:11 PM UTC

For records you follow, these changes also arrive as notifications. →

References

git.kernel.org/stable/c/4a058b34b52ed3feb1f3ff6fd26aefeeeed20cba

Show all references (8 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records