tls: always refresh the queue when reading sock (Linux Linux)

CVE-2025-38471
CRITICAL 9.8

At a glance

Source
NVD
EPSS
EPSS 0.47 % · percentile 41 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

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").

Weaknesses (CWE)

References

Scores

VersionScoreVectorScored by
CVSS 3.1CRITICAL 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1CRITICAL 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 0d87bbd39d7fd1135ab9eca672d760470f6508e8 < 730fed2ff5e259495712518e18d9f521f61972bb ; affected 0d87bbd39d7fd1135ab9eca672d760470f6508e8 < 1f3a429c21e0e43e8b8c55d30701e91411a4df02 ; affected 0d87bbd39d7fd1135ab9eca672d760470f6508e8 < cdb767915fc9a15d88d19d52a1455f1dc3e5ddc8 ; affected 0d87bbd39d7fd1135ab9eca672d760470f6508e8 < c76f6f437c46b2390888e0e1dc7aafafa9f4e0c6 ; affected 0d87bbd39d7fd1135ab9eca672d760470f6508e8 < 4ab26bce3969f8fd925fe6f6f551e4d1a508c68b ; affected 2277d7cbdf47531b2c3cd01ba15255fa955aab35
Linux · Linuxaffected 6.1 ; unaffected 0 < 6.1 ; unaffected 6.1.147 ≤ 6.1.* ; unaffected 6.6.100 ≤ 6.6.* ; unaffected 6.12.40 ≤ 6.12.* ; unaffected 6.15.8 ≤ 6.15.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD