tls: always refresh the queue when reading sock

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-38471
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-07-28 12:15:28 UTC
Updated2026-05-12 13:16:50 UTC
DescriptionIn 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").

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from [email protected]

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

Problem Types: CWE-416

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 0d87bbd39d7fd1135ab9eca672d760470f6508e8 730fed2ff5e259495712518e18d9f521f61972bb git Not specified
CNA Linux Linux affected 0d87bbd39d7fd1135ab9eca672d760470f6508e8 1f3a429c21e0e43e8b8c55d30701e91411a4df02 git Not specified
CNA Linux Linux affected 0d87bbd39d7fd1135ab9eca672d760470f6508e8 cdb767915fc9a15d88d19d52a1455f1dc3e5ddc8 git Not specified
CNA Linux Linux affected 0d87bbd39d7fd1135ab9eca672d760470f6508e8 c76f6f437c46b2390888e0e1dc7aafafa9f4e0c6 git Not specified
CNA Linux Linux affected 0d87bbd39d7fd1135ab9eca672d760470f6508e8 4ab26bce3969f8fd925fe6f6f551e4d1a508c68b git Not specified
CNA Linux Linux affected 2277d7cbdf47531b2c3cd01ba15255fa955aab35 git Not specified
CNA Linux Linux affected 6.1 Not specified
CNA Linux Linux unaffected 6.1 semver Not specified
CNA Linux Linux unaffected 6.1.147 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.100 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.40 6.12.* semver Not specified
CNA Linux Linux unaffected 6.15.8 6.15.* semver Not specified
CNA Linux Linux unaffected 6.16 * original_commit_for_fix Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.5 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.5 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.5 * custom Not specified
ADP Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP affected V3.1.5 * custom Not specified
ADP Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP affected V3.1.5 * custom Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/c76f6f437c46b2390888e0e1dc7aafafa9f4e0c6 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
lists.debian.org/debian-lts-announce/2025/10/msg00008.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Third Party Advisory
cert-portal.siemens.com/productcert/html/ssa-082556.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.kernel.org/stable/c/4ab26bce3969f8fd925fe6f6f551e4d1a508c68b 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/730fed2ff5e259495712518e18d9f521f61972bb 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/cdb767915fc9a15d88d19d52a1455f1dc3e5ddc8 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/1f3a429c21e0e43e8b8c55d30701e91411a4df02 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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