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Vulnerabilities

Vulnerability · CVE-2025-38471

In the Linux kernel, the following vulnerability has been resolved: tls: always refresh the queue when reading sock After recent changes in net-next TCP compacts skbs much more agg

Published Jul 28, 2025 · catalog updated Oct 15, 2026 · Linux Linux

Check this week

CVE-2025-38471 is not in CISA KEV. FIRST estimates a 44.00% chance of exploitation in the next 30 days. Check whether you run Linux Linux.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
Critical9.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
44.00%
Remediation
Version ranges on file
Affected products
vendor Linux Linux 0d87bbd39d7fd1135ab9eca672d760470f6508e8 <cdb767915fc9a15d88d19d52a1455f1dc3e5ddc8

In the Linux kernel, the following vulnerability has been resolved: tls: always refresh the queue when reading sock After recent changes in net-next TCP compacts skbs much more aggressively. This unearthed a bug in TLS where we may try to operate on an old skb when checking if all skbs in the queue have matching decrypt state and geometry. BUG: KASAN: slab-use-after-free in tls_strp_check_rcv+0x898/0x9a0 [tls] (net/tls/tls_strp.c:436 net/tls/tls_strp.c:530 net/tls/tls_strp.c:544) Read of size 4 at addr ffff888013085750 by task tls/13529 CPU: 2 UID: 0 PID: 13529 Comm: tls Not tainted 6.16.0-rc5

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Linux Linux 0d87bbd39d7fd1135ab9eca672d760470f6508e8 <cdb767915fc9a15d88d19d52a1455f1dc3e5ddc80d87bbd39d7fd1135ab9eca672d760470f6508e8 <cdb767915fc9a15d88d19d52a1455f1dc3e5ddc8

How to fix CVE-2025-38471

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2025-38471 is not in CISA KEV. FIRST estimates a 44.00% chance of exploitation in the next 30 days. Check whether you run Linux Linux.

Which versions are affected?

Compare what you have installed with Linux Linux 0d87bbd39d7fd1135ab9eca672d760470f6508e8 <cdb767915fc9a15d88d19d52a1455f1dc3e5ddc8 0d87bbd39d7fd1135ab9eca672d760470f6508e8 <cdb767915fc9a15d88d19d52a1455f1dc3e5ddc8. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 44.00%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Jul 28, 2025 · EUVD

    Detected

    In the Linux kernel, the following vulnerability has been resolved: tls: always refresh the queue when reading sock After recent changes in net-next TCP compacts skbs much more aggressively. This unearthed a bug in TLS where we may try to operate on an old skb when checking if all skbs in the queue have matching decrypt state and geometry. BUG: KASAN: slab-use-after-free in tls_strp_check_rcv+0x89

  2. Oct 15, 2026 · EUVD

    Updated

    In the Linux kernel, the following vulnerability has been resolved: tls: always refresh the queue when reading sock After recent changes in net-next TCP compacts skbs much more aggressively. This unearthed a bug in TLS where we may try to operate on an old skb when checking if all skbs in the queue have matching decrypt state and geometry. BUG: KASAN: slab-use-after-free in tls_strp_check_rcv+0x89

Sources

  • CVE.orgVulnerability recordCVE-2025-38471

    Official CVE identifier

    cve.org
  • EUVDVulnerability recordEUVD-2025-22891

    In the Linux kernel, the following vulnerability has been resolved: tls: always refresh the queue when reading sock After recent changes in net-next TCP compacts skbs much more aggressively. This unearthed a bug in TLS where we may try to operate on an old skb when checking if al

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 15, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.