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").
Upstream advisory: https://lore.kernel.org/linux-cve-announce/2025072812-CVE-2025-38471-ca92@gregkh/T
This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2025:13962 https://access.redhat.com/errata/RHSA-2025:13962
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Via RHSA-2025:14003 https://access.redhat.com/errata/RHSA-2025:14003
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Via RHSA-2025:14005 https://access.redhat.com/errata/RHSA-2025:14005
This issue has been addressed in the following products: Red Hat Enterprise Linux 10 Via RHSA-2025:14009 https://access.redhat.com/errata/RHSA-2025:14009
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.4 Extended Update Support Via RHSA-2025:14082 https://access.redhat.com/errata/RHSA-2025:14082
This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2025:14497 https://access.redhat.com/errata/RHSA-2025:14497
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Via RHSA-2025:14599 https://access.redhat.com/errata/RHSA-2025:14599
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.4 Extended Update Support Via RHSA-2025:14811 https://access.redhat.com/errata/RHSA-2025:14811