CVE-2025-38185: atm: atmtcp: Free invalid length skb in atmtcp_c_send().

Published Jul 4, 2025
·
Updated

atm: atmtcp: Free invalid length skb in atmtcpcsend().

Affected Software

18 affected componentsFixes available
Linux Linux kernel
Linux Linux kernel>=2.6.13<5.4.295
Linux Linux kernel>=5.5<5.10.239
Linux Linux kernel>=5.11<5.15.186
Linux Linux kernel>=5.16<6.1.142
Linux Linux kernel>=6.2<6.6.95
Linux Linux kernel>=6.7<6.12.35
Linux Linux kernel>=6.13<6.15.4
Linux Linux kernel=2.6.12
Linux Linux kernel=2.6.12-rc2
Linux Linux kernel=2.6.12-rc3
Linux Linux kernel=2.6.12-rc4
Linux Linux kernel=2.6.12-rc5
Linux Linux kernel=6.16-rc1
Linux Linux kernel=6.16-rc2
Debian Debian Linux=11.0
Microsoft azl3 kernel 6.6.92.2-2
debian/linux
6.1.176-16.1.190-16.12.107-16.12.113-17.2.12-17.2.13-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade debian/linux to a version that resolves this vulnerability.

    Fixed in 6.1.176-1Fixed in 6.1.190-1Fixed in 6.12.107-1Fixed in 6.12.113-1Fixed in 7.2.12-1Fixed in 7.2.13-1
  2. Compensating control

    Update the ATM TCP implementation so atmtcp_c_send() rejects and frees SKBs with invalid lengths, calls dev_kfree_skb(), and performs the sk_wmem_alloc adjustment needed to revert atm_account_tx() in vcc_sendmsg(), as otherwise expected in atm_pop_raw().

Event History

Jul 4, 2025
CVE Published
via MITRE·01:37 PM
Data Sourced
via MITRE·01:37 PM
Description
Data Sourced
via NVD·02:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
Aug 7, 2025
Data Sourced
via Microsoft·07:00 AM
DescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of CVE-2025-38185?

CVE-2025-38185 has a severity rating that indicates a potential impact on system stability and security.

2

How do I fix CVE-2025-38185?

To resolve CVE-2025-38185, you should update your Linux kernel to the latest version where the vulnerability has been patched.

3

What systems are affected by CVE-2025-38185?

CVE-2025-38185 affects various versions of the Linux kernel that utilize the atmtcp feature.

4

What are the potential risks of CVE-2025-38185?

CVE-2025-38185 can lead to system crashes or instability due to improper handling of data in the atmtcp_c_send function.

5

When was CVE-2025-38185 announced?

CVE-2025-38185 was reported in the Linux kernel with specific details shared by security researchers and developers.

Contact

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