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CVE-2025-38471VulnerabilityPublished Updated

CVE-2025-38471: Linux hwe edge · In the Linux kernel, the following vulnerability has been resolved: tls: always refresh the queue when reading sock After recent changes in net-next

Affects linux-hwe-edgeSource GCVE Database

0

Not known to be exploited · CVSS 9.8 Medium · fixed in 6.8.0-1051.57~22.04.1 : update linux-hwe-edge when convenient.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score
9.8Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 37% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 6.8.0-1051.57~22.04.1, 6.8.0-1047.50~22.04.2, 6.8.0-1046.49~22.04.1 +2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 28 Jul 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-25.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
linux-hwe-edgeAffected
  • Red Hat
  • Red Hat Enterprise Linux
  • Red Hat Enterprise Linux BaseOS (v. 9)
  • src
  • kpatch-patch-5_14_0-570_17_1-0:1-6.el9_6.src
  • <6.8.0-1046.49~22.04.1
  • <6.8.0-1051.57~22.04.1
  • <6.8.0-1047.50~22.04.2
  • <6.8.0-100.100~22.04.1
  • <6.8.0-1044.44~22.04.1
Fixed in
  • 6.8.0-1046.49~22.04.1
  • 6.8.0-1051.57~22.04.1
  • 6.8.0-1047.50~22.04.2
  • 6.8.0-100.100~22.04.1
  • 6.8.0-1044.44~22.04.1

AI-suggested

Red Hat has released updated kpatch-patch packages for kernel 5.14.0-427.13.1.el9_4 to fix this vulnerability. Users should apply the provided security updates and reboot their systems for the patch to take effect. Refer to the Red Hat advisory RHSA-2025:14811 and the update instructions at https://access.redhat.com/articles/11258 for detailed remediation steps.

Description

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-virtme Call Trace: kasan_report+0xca/0x100 tls_strp_check_rcv+0x898/0x9a0 [tls] tls_rx_rec_wait+0x2c9/0x8d0 [tls] tls_sw_recvmsg+0x40f/0x1aa0 [tls] inet_recvmsg+0x1c3/0x1f0 Always reload the queue, fast path is to have the record in the queue when we wake, anyway (IOW the path going down "if !strp->stm.full_len").

References

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