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
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
- 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:HExploitation evidence
Disclosed: evidence found.
CVE published 28 Jul 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
| Product | Affected | Fixed in |
|---|---|---|
| linux-hwe-edge | Affected
| Fixed in
|
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
- access.redhat.com/errata/RHSA-2025:14497 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2383893 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2025/rhsa-2025_14497.json (opens in a new tab)
- ubuntu.com/security/CVE-2025-38471 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2025-38471 (opens in a new tab)
- git.kernel.org/linus/4ab26bce3969f8fd925fe6f6f551e4d1a508c68b (opens in a new tab)
- git.kernel.org/stable/c/1f3a429c21e0e43e8b8c55d30701e91411a4df02 (opens in a new tab)
- git.kernel.org/stable/c/4ab26bce3969f8fd925fe6f6f551e4d1a508c68b (opens in a new tab)
- git.kernel.org/stable/c/730fed2ff5e259495712518e18d9f521f61972bb (opens in a new tab)
- git.kernel.org/stable/c/c76f6f437c46b2390888e0e1dc7aafafa9f4e0c6 (opens in a new tab)
- git.kernel.org/stable/c/cdb767915fc9a15d88d19d52a1455f1dc3e5ddc8 (opens in a new tab)
- ubuntu.com/security/notices/USN-7879-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7879-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-7880-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-7879-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-7879-4 (opens in a new tab)
- ubuntu.com/security/notices/USN-7934-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8028-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8028-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8031-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8028-3 (opens in a new tab)
- ubuntu.com/security/notices/USN-8028-4 (opens in a new tab)
- ubuntu.com/security/notices/USN-8028-5 (opens in a new tab)