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").
| Date Added | Due Date | Vulnerability Name | Required Action |
|---|---|---|---|
| N/A |
| Type | Version | Base score | Base severity | Vector |
|---|---|---|---|---|
| Primary | 3.1 | 7.8 | HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| Hyperlink | Source | Resource |
|---|---|---|
| https://git.kernel.org/stable/c/1f3a429c21e0e43e8b8c55d30701e91411a4df02 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | Patch |
| https://git.kernel.org/stable/c/4ab26bce3969f8fd925fe6f6f551e4d1a508c68b | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | Patch |
| https://git.kernel.org/stable/c/730fed2ff5e259495712518e18d9f521f61972bb | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | Patch |
| https://git.kernel.org/stable/c/c76f6f437c46b2390888e0e1dc7aafafa9f4e0c6 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | Patch |
| https://git.kernel.org/stable/c/cdb767915fc9a15d88d19d52a1455f1dc3e5ddc8 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | Patch |
| https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html | af854a3a-2127-422b-91ae-364da2661108 | Third Party Advisory |